Iron Containing Patents (Class 420/581)
  • Patent number: 5401463
    Abstract: A hydrogen-occlusion alloy electrode consisting of a hydrogen-occlusion alloy whose composition is expressed by a general formula Ti.sub.x Zr.sub.1-x V.sub.y Fe.sub.z Ni.sub.2-y-z, wherein 0.1.ltoreq.X.ltoreq.0.9, 0.3.ltoreq.Y.ltoreq.0.9 and 0.05.ltoreq.Z.ltoreq.0.5, or a hydride of said alloy. When made in accordance with this invention, such a hydrogen-occlusion alloy electrode has a large discharge capacity and a long cycle life.
    Type: Grant
    Filed: January 2, 1991
    Date of Patent: March 28, 1995
    Assignee: Furukawa Denchi Kabushiki Kaisha
    Inventor: Shinjiro Wakao
  • Patent number: 5401464
    Abstract: Manganese or silicon carbide is formed in a solid state reaction by mixing manganese or silicon oxide particles with carbonaceous material (e.g., coke) particles. The materials may be formed into agglomerates including excess carbonaceous material and heated in a suitable reactor vessel. An iron source, such as pig iron and/or iron scrap, can also be added. In that case, the manganese or silicon carbide dissolves in molten iron to produce ferrosilicon or ferromanganese alloys.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: March 28, 1995
    Assignee: Deere & Company
    Inventor: Norman P. Lillybeck
  • Patent number: 5393723
    Abstract: The catalyst is provided for improving the performance of hydrocarbon fuels used in internal combustion engines. The catalyst is a based metal alloy catalyst including tin, antimony, lead, mercury and thallium in the following proportions by weight percent:Sb 18-20Pb 4.5-5.5Hg 12-14Tl 0.1-0.5and the balance consisting essentially of Sn. The catalyst operates at ambient temperatures and atmospheric pressure. The catalyst is intended to pretreat fuel before combustion and may be disposed in the fuel tank, fuel line or return fuel line.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: February 28, 1995
    Inventor: Anthony W. Finkl
  • Patent number: 5340413
    Abstract: Fe-Ni based soft magnetic alloys having nanocrystalline particles substantially uniformly distributed throughout an amorphous matrix are disclosed. The soft magnetic alloys of the present invention may be represented by the general formula:(Fe.sub.1-x Ni.sub.x).sub.a M.sub.b (B.sub.1-y Si.sub.y).sub.cwhere M is a metal chosen from the group consisting of Mo, Cr, Hf, Nb, Ta, Ti, V, W, Zr. The quantity "x" is between about 0.2 and about 0.9; a is between about 60 and 90; b is between about 0.1 and 10; y is between 0 and 0.5; and c is between about 0.1 and about 30, with the stipulation that all the elements, plus impurities, add up to 100. Also described is a process for making the nanocrystalline alloys and for optimizing certain magnetic properties of said alloys via a two step anneal.
    Type: Grant
    Filed: June 2, 1992
    Date of Patent: August 23, 1994
    Assignee: AlliedSignal Inc.
    Inventor: Ronald Martis
  • Patent number: 5338508
    Abstract: There is provided alloy steel powders for the injection molding use manufactured by the atomizing method which are characterized by their substantially spherical particle shape and average particle diameters of 20 microns or less, a compound for the injection molding use which contains the alloy steel powders and one or more organic binders, a process for manufacturing sintered materials in performing injection molding of compound and subsequently debinding the obtained injection molded part followed by sintering the debound part, at least the first stage of the sintering step is performed in reduced pressure atmosphere, and the sintered material having a relative density ratio of 92% or more.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: August 16, 1994
    Assignee: Kawasaki Steel Corporation
    Inventors: Minoru Nitta, Yoshisato Kiyota, Yukio Makiishi, Hiroshi Ohtsubo, Toshio Watanabe, Yasuhiro Habu
  • Patent number: 5304346
    Abstract: The invention provides a welding material for welding iron containing low CTE alloys. The filler metal contains 25-55% nickel, 0-30% cobalt, 0.05-0.5% carbon, 0.25-5% niobium and balance iron with incidental impurities. The welding material also is operable with fluxes for submerged arc welding. In addition, the welding material may be configured to function as a flux coated or flux-cored electrode.
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: April 19, 1994
    Assignee: INCO Alloys International, Inc.
    Inventors: David B. O'Donnell, Robert A. Bishel
  • Patent number: 5292596
    Abstract: A method is disclosed for protecting a force-transmitting or force-receiving surface of titanium from fretting fatigue. The method constitutes coating the surface with a coating of an alloy of nickel, cobalt, and iron.
    Type: Grant
    Filed: August 19, 1992
    Date of Patent: March 8, 1994
    Assignees: United Technologies Corporation, The United States of America as represented by the Secretary of the Air Force
    Inventors: Hugh M. Privett, III, Shiro Fujishiro
  • Patent number: 5281390
    Abstract: In the method of the present invention for producing a hydrogen-storing alloy, part or whole of single substance of Zr as a starting material is replaced with a ferrozirconium or a zircalloy. This method enables production of a hydrogen-storing alloy at reduced material and production costs and with high efficiency and safety of work. The alloy produced by this method has high homogeneity with no segregation. It is thus possible to obtain a hydrogen-storing alloy superior in hydrogen-storing characteristics such as hydrogen storage capacity, reaction speed, and electrode reaction efficiency in an electrolyte. It is also possible to obtain, by using this alloy, a nickel-hydrogen storage battery having a large storage capacity and capable of performing quick charging and discharging, while exhibiting longer life and higher economy.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: January 25, 1994
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Takaharu Gamo, Yoshio Moriwaki, Tsutomu Iwaki, Akemi Shintani
  • Patent number: 5264052
    Abstract: In composition of Fe-Ni alloy preferably used for lead frames in production of IC, specified amount of Be is added to the basic composition for increase in mechanical strength whilst maintaining the low thermal expansion characteristic of the conventional Fe-Ni alloys.
    Type: Grant
    Filed: October 17, 1991
    Date of Patent: November 23, 1993
    Assignee: Yamaha Corporation
    Inventors: Jun Kato, Tsuyuki Watanabe
  • Patent number: 5192497
    Abstract: A superalloy with a low thermal expansion coefficient has of 0.1% or less of C, 1.0% of less or Si, 1.0% or less of Mn, 0.5 to 2.5% of Ti, more than 3.0% and not more than 6.0% of Nb, 0.01% or less of B, 20 to 32% of Ni and more than 16% and not more than 30% of Co within a range of 48.8.ltoreq.1.235xNi+Co<55.8, and the balance essentially Fe except for incidental impurities. The superalloy may further contain 1.0% or less of Al, and has a mean coefficient of thermal expansion of 7.0.times.10.sup.-6 /.degree. C. or less from room temperatures to 400.degree. C., a tensile strength of 100 kgf/mm.sup.2 or more at 500.degree. C., and a notch rupture strength superior to a smooth rupture strength in a creep rupture test at 500.degree. C.
    Type: Grant
    Filed: March 2, 1992
    Date of Patent: March 9, 1993
    Assignee: Hitachi Metals, Ltd.
    Inventor: Koji Sato
  • Patent number: 5190599
    Abstract: A magnetic memory and a magnetic alloy thereof are disclosed, which comprise a magnetic alloy whose main phase is an iso-molar compound phase, the iso-molar compound phase being represented with general expression Pt(Fe.sub.1-x Mn.sub.x)Sn where the relationship of 0<x<1 is satisfied, wherein the magnetic memory records information by changing a magnetic property of the magnetic alloy.
    Type: Grant
    Filed: September 24, 1990
    Date of Patent: March 2, 1993
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Masashi Sahashi, Yoichi Tokai, Tomomi Funayama
  • Patent number: 5114503
    Abstract: A magnetic core comprised of an amorphous alloy ribbon wound into a toroidal shape, wherein the said amorphous alloy has a composition of the formula:(Co.sub.1-x-y-z Fe.sub.x Ni.sub.y Mn.sub.z).sub.100-a-b-c M.sub.a Si.sub.b B.sub.cwherein M is at least one element selected from the group consisting of Nb, Cr and Mo, and x, y, z, a, b and c are numbers which satisfy relations of 0<a.ltoreq.6, 13.ltoreq.b.ltoreq.16, 7.ltoreq.b.ltoreq.10, 0<x.ltoreq.0.1, 0.ltoreq.y.ltoreq.0.2 and 0.ltoreq.x.ltoreq.0.13 respectively, said amorphous alloy after heat treatment having a rectangular ratio Br/Bs of at least 80%, a Bs value in a range of 5 KG to 8 KG and a stress relief ratio of at least 75%.
    Type: Grant
    Filed: March 24, 1987
    Date of Patent: May 19, 1992
    Assignee: Hitachi Metals, Inc.
    Inventors: Yoshihito Yoshizawa, Kiyotaka Yamauchi
  • Patent number: 5114669
    Abstract: A ferromagnetic material having the formula MGa.sub.2-x As.sub.x where 0.15.ltoreq.x.ltoreq.0.99 and M represents one of Fe.sub.3, Fe.sub.3 partially substituted by manganese or Fe.sub.3 partially substituted by cobalt.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: May 19, 1992
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Brian Cockayne, William R. MacEwan, Ivor R. Harris, Nigel A. Smith
  • Patent number: 5096667
    Abstract: Disclosed is a reversible, electrochemical cell having a high electrochemical activity, hydrogen storage negative electrode. The negative electrode is formed of a reversible, multicomponent, multiphase, electrochemical hydrogen storage alloy. The hydrogen storage alloy is capable of electrochemically charging and discharging hydrogen in alkaline aqueous media. In one preferred exemplification the hydrogen storage alloy is a member of the family of hydrogen storage alloys, derived from the V-Ti-Zr-Ni and V-Ti-Zr-Ni-Cr alloys in which the V, Ti, Zr, Ni and Cr are partially replaced by one or more modifiers, and the alloy has the composition:(V.sub.y'-y Ni.sub.y Ti.sub.x'-x Zr.sub.x Cr.sub.z).sub.a M'.sub.b M".sub.c M.sub.d.sup.ivwhere x' is between 1.8 and 2.2, x is between 0 and 1.5, y' is between 3.6 and 4.4, y is between 0.6 and 3.5, z is between 0.00 and 1.44, a designates that the V-Ni-Ti-Zr-Cr component as a group is from 70 to 100 atomic percent of the alloy, b,c,d,e, . . .
    Type: Grant
    Filed: November 24, 1989
    Date of Patent: March 17, 1992
    Assignee: Energy Conversion Devices, Inc.
    Inventor: Michael A. Fetcenko
  • Patent number: 5084111
    Abstract: In composition of Fe-Ni alloy preferably used for lead frames in production of IC, specified amount of Be is added to the basic composition for increase in mechanical strength while maintaining the low thermal expansion characteristic of the conventional Fe-Ni alloys.
    Type: Grant
    Filed: December 13, 1989
    Date of Patent: January 28, 1992
    Assignee: Yamaha Corporation
    Inventors: Jun Kato, Tsuyuki Watanabe
  • Patent number: 5077006
    Abstract: This invention relates to heat and corrosion resistant alloys for structural parts in industrial furnaces and similar installations requiring hot strength, long life and resistance to hot gas corrosion, carburization and thermal fatigue, and to master alloys to aid in the production of these alloys. The alloys consist of additions of less than one percent by weight each of the components tungsten, zirconium, molybdenum, columbium, titanium and one or more rare earth elements to base alloys of the types standardized by the Alloy Castings Institute Division of the Steel Founders Society of America or to similar base alloys. The master alloys consist of all of these components, with the possible exception of Mo, combined together in the desired proportions, possibly along with some combination of iron, nickel or chromium in total content of up to about half of the master alloys by weight as partial diluents. The resultant master alloys are always denser than molten baths of the base heat resistant alloys.
    Type: Grant
    Filed: July 23, 1990
    Date of Patent: December 31, 1991
    Assignee: Carondelet Foundry Company
    Inventor: John H. Culling
  • Patent number: 5067993
    Abstract: A magnetic core material made of a Fe-Co base alloy for use at high frequencies, and has excellent high-frequency alternating magnetic properties. The core material composition is Co: 45-53% by weight, C: 0.3-3% by weight, one or both of Mn and Si: 0.1-2% by weight, at least one of Mg, Ca, and Ce: 0.1-0.2% by weight, and the remainder Fe and unavoidable impurities. The structure of the alloy comprises a ferrite matrix containing graphite in an amount of from 1-20% by volume dispersed therein. The material is applied, for example, in a dot impact printer and to a pulse motor.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: November 26, 1991
    Assignee: Mitsubishi Materials Corporation
    Inventors: Saburo Wakita, Kiyoshi Yamaguchi, Norio Yanagisawa
  • Patent number: 5049357
    Abstract: A method for economically manufacturing an iron-boron-silicon alloy through simple steps, which comprises the steps of: adding a boron raw material and a carbonaceous reducing agent to a molten iron received in a vessel; blowing oxygen gas into the molten iron to reduce the boron raw material in the molten iron by means of the carbonaceous reducing agent to prepare a boron-containing molten iron; continuing the blowing of oxygen gas to decarburize the boron-containing molten iron until the carbon content in the boron-containing molten iron decreases to up to 0.2 wt. %; and adding at least one of silicon and ferrosilicon to the boron-containing molten iron while stirring the boron-containing molten iron, thereby manufacturing an iron-boron-silicon alloy.
    Type: Grant
    Filed: October 6, 1989
    Date of Patent: September 17, 1991
    Assignee: NKK Corporation
    Inventors: Hidetoshi Matsuno, Toshio Takaoka, Yoshiteru Kikuchi, Yoshihiko Kawai, Tadahiko Nishi
  • Patent number: 5037609
    Abstract: The claimed material for refining steel of multi-purpose application contains the following components in the following proportion, % by mass:______________________________________ aluminium 30-40 silicon 35-25 calcium 5-15 magnesium 7-5 carbon 20-10 iron the balance.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: August 6, 1991
    Inventors: Anatoly Y. Nakonechny, Alexandr J. Zaitsev, Manat Z. Tolymbekov, Jury F. Vyatkin, Vasily S. Kolpakov
  • Patent number: 5019459
    Abstract: A high temperture, bimetallic cylinder of either ASTM 193B-16 carbon steel or duplex stainless steel having a wear and corrosion resistant inlay or liner of a nickel-based alloy containing 1.5 to 4.5% carbon, 1.5 to 3.5% silicon, 1.0 to 3.0% boron, up to 7.0% chromium, up to 15% iron, 1.0 to 6.0% cobalt and 30 to 60% tungsten. The inlay is centrifugally cast within the cylinder which is thermally compatible with the inlay such that it retains a high yield strength after casting.
    Type: Grant
    Filed: April 5, 1990
    Date of Patent: May 28, 1991
    Assignee: Xaloy Incorporated
    Inventors: Schiao F. Chou, Willie Roberson
  • Patent number: 5006054
    Abstract: Low density, high temperature and aluminum-rich intermetallic alloys displaying excellent elevated temperature properties, including oxidation resistance, are disclosed. Based on the aluminum/titanium system, specifically modifications of Al.sub.3 Ti compositions, useful alloys are derived from changes in crystal structure and properties effected by selected-site substitution alloying with manganese and/or chromium, and, where used, vanadium, or equivalent site-substituting alloying elements.
    Type: Grant
    Filed: March 30, 1989
    Date of Patent: April 9, 1991
    Assignee: Technology Development Corporation
    Inventor: Donald E. Nikkola
  • Patent number: 4999158
    Abstract: This invention relates to iron-base alloy compositions, nickel containing austenitic ferrous alloy compositions (especially low nickel compositions) and dopants added to low nickel austenitic alloys as a means of improving the elevated temperature oxidation resistance of the resultant material.
    Type: Grant
    Filed: November 2, 1988
    Date of Patent: March 12, 1991
    Assignee: Chrysler Corporation
    Inventor: John M. Corwin
  • Patent number: 4933026
    Abstract: A soft magnetic cobalt/iron alloy with high saturation magnetization comprising 0.15%-0.5% tantalum or niobium or tantalum plus niobium, 33-55% cobalt, the balance consisting of iron apart from very minor alloy ingredients and incidental impurities.
    Type: Grant
    Filed: July 1, 1988
    Date of Patent: June 12, 1990
    Inventors: Rees D. Rawlings, Rodney V. Major, Clive M. Orrock
  • Patent number: 4898794
    Abstract: A hydrogen absorbing Ni,Zr-based alloy comprising 5 to 20% by weight of titanium (Ti), 10 to 37% by weight of zirconium (Zr), 5 to 30% by weight of manganese (Mn), 0.01 to 15% by weight of tungsten (W), 6 to 30% by weight of iron (Fe), and optionally at least one of 0.1 to 7% by weight of Cu, 0.05 to 6% by weight of Cr and 0.01 to 5% by weight of Al, and balance nickel (Ni) and unavoidable impurities; and a sealed Ni-hydrogen rechargeable battery comprising a negative electrode provided with a hydrogen absorbing alloy as an active material, an Ni positive electrode, a separator and an alkaline electrolytic solution, wherein the hydrogen absorbing alloy is composed of such hydrogen absorbing Ni,Zr-based alloy.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: February 6, 1990
    Assignee: Mitsubishi Metal Corporation
    Inventors: Hidekazu Doi, Ritsue Yabuki
  • Patent number: 4898712
    Abstract: The present invention relates to a process for the production of ferrosilicon in a closed two-stage reduction furnace. In the present invention, carbon monoxide released as a result of the smelting process, in the first stage of the furnace, is used to prereduce higher oxides of iron, for example Fe.sub.2 O.sub.3 and Fe.sub.3 O.sub.4, contained in a second stage of a furnace, to iron monoxide (FeO). The iron monoxide is then used as a feed material to the first stage of the furnace. The use of a closed furnace and a pre-reduction process results in substantial energy savings in the production of ferrosilicon alloy.
    Type: Grant
    Filed: March 20, 1989
    Date of Patent: February 6, 1990
    Assignee: Dow Corning Corporation
    Inventors: Vishu D. Dosaj, James B. May, Robert D. Jeffress
  • Patent number: 4874577
    Abstract: Disclosed is a wear-resistant intermetallic compound alloy having superior machineability which consists essentially of: 45-60% of either Ni or Co or both with cobalt content of at least 5%, at least one of 0.1-2% of Hf and 0.05-2% of Re, 0-2% of at least one element selected from the group consisting of Si, P, Cu, Zn, Ga, Ge, Cd, In, Sn, Sb, Pb and Bi, 0-2% of C, and 0-5% of at least one element selected from the group consisting of Zr, Fe, V, Nb, Ta, Cr, Mo, W and Mn, the balance being Ti and incidental impurities, the percent being atomic percent.
    Type: Grant
    Filed: November 9, 1987
    Date of Patent: October 17, 1989
    Assignee: Mitsubishi Kinzoku Kabushiki Kaisha
    Inventors: Saburo Wakita, Junji Hoshi
  • Patent number: 4859255
    Abstract: A magnetically anisotropic sintered permanent magnet of the FeCoBR system (R is sum of R.sub.1 and R.sub.2) wherein:R.sub.1 is Dy, Tb, Gd, Ho, Er, Tm and/or Yb, andR.sub.2 comprises 80 at % or more of Nd and Pr in R.sub.2, and the balance of other rare earth elements exclusive of R.sub.1,said system consisting essentially of, by atomic percent, 0.05 to 5% of R.sub.1, 12.5 to 20% of R, 4 to 20% of B up to 35% of Co, and the balance being Fe. Additional elements M(Ti, Zr, Hf, Cr, Mn, Ni, Ta, Ge, Sn, Sb, Bi, Mo, Nb, Al, V, W) may be present.
    Type: Grant
    Filed: February 29, 1988
    Date of Patent: August 22, 1989
    Assignee: Sumitomo Special Metals Co., Ltd.
    Inventors: Setsuo Fujimura, Masato Sagawa, Yutaka Matsuura, Hitoshi Yamamoto, Norio Togawa
  • Patent number: 4851058
    Abstract: The hard magnetic properties, including intrinsic coercivity, remanence and energy product of rapidly quenched, rare earth-transition metal alloys has been substantially increased by the addition of suitable amounts of the element boron. The preferred rare earth constituent elements are neodymium and praseodymium, and the preferred transition metal element is iron.
    Type: Grant
    Filed: September 3, 1982
    Date of Patent: July 25, 1989
    Assignee: General Motors Corporation
    Inventor: John J. Croat
  • Patent number: 4842657
    Abstract: Amorphous alloys containing zirconium as an amorphus forming metal and having the formula X.sub..alpha. Z.sub..gamma. wherein X is at least one of Fe, Co and Ni, .alpha. is 80 to 92 atomic %, Z is zirconium, .gamma. is 8 to 20 atomic % and the sum of .alpha. and .gamma. is 100 atomic %, cause very little variation of properties during aging and embrittlement because they contain no metalloid as the amorphous forming element, and they further have excellent strength, hardness, corrosion resistance and heat resistance and maintain superior magnetic properties which are characteristic of iron group elements.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: June 27, 1989
    Assignee: Shin-Gijutsu Kaihatsu Jigyodan
    Inventors: Tsuyoshi Masumoto, Kiyoyuki Esashi, Masateru Nose
  • Patent number: 4838962
    Abstract: A magneto-optical recording medium comprising a perpendicularly magnetized amorphous film made of an alloy of the formula: (R.sub.1-x M.sub.x).sub.a (Fe.sub.1-y Co.sub.y).sub.100-a, wherein R is at least one of La, Ce, Pr, Nd, Sm, Ho, Er and Yb; M is at least one of Tb, Gd and Dy; 0.ltoreq.x<0.5; 0<y<1; and 10.ltoreq.a.ltoreq.40, is large in the Kerr rotation angle, excellent in coercivity and affords a larger read output-to-noise ratio (C/N).
    Type: Grant
    Filed: June 15, 1988
    Date of Patent: June 13, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Shinji Takayama, Fumiyoshi Kirino, Yutaka Sugita
  • Patent number: 4836867
    Abstract: An anisotropic rare earth magnet material is provided by a sputtering technique. The material has structural and magnetic anisotropy. Its composition is represented essentially by the following formula:(R.sub.1-a O.sub.a).sub.b M.sub.1-bwherein R means at least one of rare earth metal elements of Y and the lanthanide series of La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu or a combination of Hf and at least one of the foregoing rare earth metal elements, M denotes Co or a combination of Co and at least one of Fe, Cu, Zr, Ti, Al and B, a is not greater than 0.05 (a.ltoreq.0.05), and b ranges from 0.1 to 0.5 (b=0.1-0.5).
    Type: Grant
    Filed: June 17, 1987
    Date of Patent: June 6, 1989
    Assignees: Research Development Corporation, Tokin Corporation
    Inventors: Eishu Sugawara, Taketoshi Nakayama, Tsuyoshi Masumoto
  • Patent number: 4837109
    Abstract: A method of producing a neodymium-iron-boron permanent magnet alloy having a composition of 25.0-50.0 weight % of neodymium, 0.3-5.0 weight % of boron and balance substantially iron, including the steps of adding metal calcium, calcium hydride or a mixture thereof as a reducing agent to neodymium fluoride, iron and boron (or ferroboron), and further adding thereto at least one of calcium chloride, sodium chloride and potassium chloride as a flux, melting the resulting mixture in an inert gas atmosphere, or in a reducing gas atmosphere or substantially in vacuum at 1,000.degree.-1,300.degree. C., thereby reducing said neodymium fluoride to provide said alloy with as small a calcium content as 0.1 weight % or less. The starting materials may contain dysprosium fluoride and niobium to provide Nd-Dy-Fe-B-Nb alloys containing 0.5-15.0 weight % Dy and 0.05-5.0 weight % Nb. This method makes it possible to produce Nd-Fe-B or Nd-Dy-Fe-B-Nb permanent magnet alloys with as small a calcium content as 0.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: June 6, 1989
    Assignee: Hitachi Metals, Ltd.
    Inventors: Masaaki Tokunaga, Kimio Uchida, Akitoshi Hiraki
  • Patent number: 4832913
    Abstract: Disclosed is a class of multicomponent, high capacity hydrogen storage materials suitable for use in a heat pump comprising titanium, vanadium, manganese and iron. The hydrogen storage materials are disordered, multiphase, polycrystalline materials which are predominately vanadium and comprise at least a major crystalline phase substantially surrounded by an intergranular phase, with one or more inclusion phases. The materials are characterized by a Bragg x-ray diffraction pattern with a major peak occurring 43 degrees 2 theta. Also disclosed are processes for making the class of materials and a heat pump system utilizing at least one such material.
    Type: Grant
    Filed: July 18, 1988
    Date of Patent: May 23, 1989
    Assignee: Energy Conversion Devices, Inc.
    Inventors: Kuochih C. Hong, Krishna Sapru
  • Patent number: 4816216
    Abstract: The present invention relates to an iron-nickel alloy containing from about 30% to about 60% nickel, from about 0.001% to about 0.15% nitrogen, at least one element selected from the group consisting of from about 1% to about 10% molybdenum and from about 0.001% to about 2% aluminum and the balance essentially iron. The alloys demonstrate improved resistance to intermetallic compound formation, improved glass to metal sealing properties, and improved wirebonding performance. The alloys of the present invention have particular utility as a lead frame material for semiconductor packages.
    Type: Grant
    Filed: November 29, 1985
    Date of Patent: March 28, 1989
    Assignee: Olin Corporation
    Inventors: Chung-Yao Chao, John F. Breedis
  • Patent number: 4792368
    Abstract: Magnetic materials comprising Fe, B, R (rare earth elements) and Co having a major phase of Fe-Co-B-R intermetallic compound(s) of tetragonal system, and sintered anisotropic permanent magnets consisting essentially of, by atomic percent, 8-30% R (at least one of rare earth elements inclusive of Y), 2-28% B, no less than 50% Co, and the balance being Fe with impurities. Those may contain additional elements M (Ti, Ni, Bi, V, Nb, Ta, Cr, Mo, W, Mn, Al, Sb, Ge, Sn, Zr, Hf) providing Fe-Co-B-R-M type materials and magnets.
    Type: Grant
    Filed: July 25, 1983
    Date of Patent: December 20, 1988
    Assignee: Sumitomo Special Metals Co., Ltd.
    Inventors: Masato Sagawa, Setsuo Fujimura, Yutaka Matsuura
  • Patent number: 4781771
    Abstract: An amorphous Co-based metal filament having a circular cross-section made of an alloy composed mainly of Co-Si-B or Co-Me-Si-B (wherein Me is at least one metal selected from the group consisting of Fe, Ni, Cr, Ta, Nb, V, Mo, Mn, W and Zr). This filament is produced by jetting the above alloy into a rotating member containing therein a cooling liquid through a spinning nozzle having a hole diameter which is determined according to the amorphous metal-forming ability (critical thickness to form an amorphous phase) to thereby cool-solidify the jetted molten alloy and form a filament, and then winding the filament continuously on the inner walls of the rotating member by the rotary centrifugal force thereof. This amorphous metal filament is corrosion resistant, is tough and has high electromagnetic characteristics, and is very useful as industrial materials, such as electric and electronic parts, composite materials and fibrous materials.
    Type: Grant
    Filed: December 30, 1986
    Date of Patent: November 1, 1988
    Assignees: Unitika Ltd., Tsuyoshi Masumoto
    Inventors: Tsuyoshi Masumoto, Akihisa Inoue, Michiaki Hagiwara, Kiyomi Yasuhara
  • Patent number: 4767474
    Abstract: Isotropic permanet magnet formed of a sintered body having a mean crystal grain size of 1-130 microns and a major phase of tetragonal system comprising, in atomic percent, 10-25% of R wherein R represents at least one of rare-earth elements including Y, 3-23% of B, no more than 50% of Co and the balance being Fe. As additional elements M, Al, Ti, V, Cr, Mn, Zr, Hf, Nb, Ta, Mo, Ge, Sb, Sn, Bi, Ni or W may be incorporated.The magnets can be produced through a powder meallurgical process resulting in high magnetic properties, e.g., up to 7 MGOe or higher energy product.
    Type: Grant
    Filed: December 30, 1983
    Date of Patent: August 30, 1988
    Assignee: Sumitomo Special Metals Co., Ltd.
    Inventors: Setsuo Fujimura, Masato Sagawa, Yutaka Matsuura
  • Patent number: 4743513
    Abstract: Wear-resistant materials and articles, wherein an amorphous material having a hardness of greater than about 1600 VHN is utilized to protect wear-susceptible portions of substrates or is itself made into a wear-resistant article. Amorphous materials having hardnesses greater than about 1600 VHN are found to have surprisingly great wear resistance and can be used to prepare wear-resistant articles. Particularly satisfactory results have been obtained with metal-metalloid systems such as W--Ru--B, Re--Mo--B, Mo--Ru--B, and Co--Nb--B materials.
    Type: Grant
    Filed: June 10, 1983
    Date of Patent: May 10, 1988
    Assignee: Dresser Industries, Inc.
    Inventor: David M. Scruggs
  • Patent number: 4711826
    Abstract: The present invention relates to iron-nickel alloys having improved glass sealing properties. Alloys of the present invention contain from about 30% to about 60% nickel, from about 0.5% to about 3% silicon, from about 0.5% to about 3.5% aluminum and the balance essentially iron. Preferably, the alloys have a total aluminum plus silicon content of less than about 4%. The alloys of the present invention have particular utility in electronic and electrical applications. For example, they may be used as a lead frame or a similar component in a semiconductor package.
    Type: Grant
    Filed: January 27, 1986
    Date of Patent: December 8, 1987
    Assignee: Olin Corporation
    Inventors: Eugene Shapiro, Michael L. Santella
  • Patent number: 4710242
    Abstract: Ferromagnetic material for temperature sensitive elements or parts has a direction of easy magnetization which varies depending upon temperature. The material has the formula:Nd.sub.1-u R.sub.u (Co.sub.1-x M.sub.x).sub.zwherein R is one or more rare earth elements, M is at least one element selected from the group consisting of B, Al, Si, Ti, V, Cr, Mn, Fe, Ni, Cu, Zr, Nb, Ta, Mo, W, Hf, Pd, Sn and Pb, 0.ltoreq.u.ltoreq.0.5, 0<x<0.4 and 4.4.ltoreq.z.ltoreq.5.5.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: December 1, 1987
    Assignee: Fujitsu Limited
    Inventors: Wataru Yamagishi, Masato Sagawa
  • Patent number: 4707198
    Abstract: An amorphous alloy consists of iron and tellurium and has a tellurium content of from about 14 to 90 atomic%. The amorphous alloy can be utilized as an information material for optical recording and the like, and as a magnetic material and the like. The corrosion resistance and particularly heat resistance are excellent.
    Type: Grant
    Filed: June 19, 1986
    Date of Patent: November 17, 1987
    Assignee: Teijin Limited
    Inventors: Kiyoshi Chiba, Hiromitsu Ino, Kazuto Tokumitsu
  • Patent number: 4670353
    Abstract: A magnetooptical recording medium comprises a ternary amorphous magnetic alloy of Tb-Fe-Co.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: June 2, 1987
    Assignee: Canon Kabushiki Kaisha
    Inventor: Yoshifumi Sakurai
  • Patent number: 4668310
    Abstract: Amorphous alloys having high strength, high hardness, high crystallization temperature, high saturation magnetic induction, low coercive force, high magnetic permeability and particularly low deterioration of magnetic properties with lapse of time, have a composition formula ofT.sub.a X.sub.b Z.sub.c or T.sub.a' X.sub.b' Z.sub.c' M.sub.d,whereinT is at least one of Fe, Co and Ni,X is at least one of Zr, Ti, Hf and Y,Z is at least one of B, C, Si, Al, Ge, Bi, S and P,a is 70-98 atomic %,b is not more than 30 atomic %,c is not more than 15 atomic %,sum of a, b and c is 100 atomic %,M is at least one Mo, Cr, W, V, Nb, Ta, Cu, Mn, Zn, Sb, Sn, Be, Mg, Pd, Pt, Ru, Os, Rh, Ir, Ce, La, Pr, Nd, Sm, Eu, Gd, Tb and Dy,a' is 70-98 atomic %,b' is not more than 30 atomic %,c' is not more than 15 atomic %,d is not more than 20 atomic %, andsum of a', b', c' and d is 100 atomic %.
    Type: Grant
    Filed: March 14, 1983
    Date of Patent: May 26, 1987
    Assignees: Hitachi Metals, Ltd., Hitachi, Ltd.
    Inventors: Mitsuhiro Kudo, Shinji Takayama, Yoshizo Sawada, Yasunobu Ogata
  • Patent number: 4662937
    Abstract: There is provided a process for producing a high-manganese iron alloy from a manganese ore and/or a pre-reduced product thereof in a top and bottom blown converter type reaction vessel holding molten iron or a molten manganese iron alloy, together with a molten slag, said molten iron or alloy and said molten slag being the products of a separate smelting furnace, gas being blown into said vessel through a bottom blowing nozzle, said process comprising charging said vessel with a supply of raw materials including at least one source of manganese and iron selected from a manganese ore containing manganese oxide and iron oxide and a pre-reduced product thereof, a solid carbonaceous substance and a slag forming agent, while simultaneously blowing gas selected from oxygen and a gas containing oxygen into said vessel through a top blowing lance to burn said carbonaceous substance so as to heat, melt and reduce said raw materials to form a melt containing manganese oxide and iron oxide; supplying an additional carbo
    Type: Grant
    Filed: May 24, 1985
    Date of Patent: May 5, 1987
    Assignees: Nippon Steel Corporation, Japan Metals and Chemicals Co., Ltd.
    Inventors: Hiroyuki Katayama, Hidetake Ishikawa, Masatoshi Kuwabara, Hiroyuki Kajioka, Masaki Fujita, Kenji Shibata, Yoshiaki Tamura, Takashi Shimanuki
  • Patent number: 4647427
    Abstract: Long range ordered alloys are described having the nominal composition (Fe,Ni,Co).sub.3 (V,M) where M is a ductility enhancing metal selected from the group Ti, Zr, Hf with additions of small amounts of cerium and niobium to drammatically enhance the creep properties of the resulting alloys.
    Type: Grant
    Filed: August 22, 1984
    Date of Patent: March 3, 1987
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: Chain T. Liu
  • Patent number: 4623387
    Abstract: Amorphous alloys containing zirconium as an amorphous forming metal and having teh formula X.sub..alpha. Z.sub..gamma. wherein X is at least one of Fe, Co and Ni, .alpha. is 80 to 92 atomic %, Z is zirconium, .gamma. is 8 to 20 atomic % and the sum of .alpha. and .gamma. is 100 atomic %, cause little variation of properties during aging and embrittlement because they contain no metalloid as the amorphous forming element, and they further have excellent strength, hardness, corrosion resistance and heat resistance and maintain superior magnetic properties which are characteristic of iron group elements.
    Type: Grant
    Filed: February 5, 1985
    Date of Patent: November 18, 1986
    Assignee: Shin-Gijutsu Kaihatsu Jigyodan
    Inventors: Tsuyoshi Masumoto, Kiyoyuki Esashi, Masateru Nose
  • Patent number: 4623402
    Abstract: The metal composition and the process for producing same relate to the art of alloy metallurgy.The metal composition based on metals of VIII Group and nitrides of metals of III-VII Groups is characterized in that at least one alloy containing at least one metal of VIII Group and at least one metal of III-VII Groups are disintegrated to powder, placed into a nitrogen-containing atmosphere with an excess of nitrogen, burning is initiated by way of a local ignition of the mixture at any point thereof and the excess of nitrogen is maintained till completion of the reaction.The metal composition and process for producing same according to the present invention are useful in the manufacture of hard alloys based on refractory or high-melting compounds.
    Type: Grant
    Filed: December 21, 1983
    Date of Patent: November 18, 1986
    Assignees: Nauchno-Issledovatelsky Institut Prikladnoi Matematiki Pri Tomskom Gosudarstvennov Universitete, Institut Khimicheskoi Fiziki Akademii Nauk SSSR
    Inventors: Jury M. Maximov, Mansur K. Ziatdinov, Anatoly D. Kolmakov, Larisa G. Raskolenko, Alexandr G. Merzhanov, Inna P. Borovinskaya, Fedor I. Dubovitsky
  • Patent number: 4591483
    Abstract: There are described noble metal alloys for dental purposes, especially for firing on dental porcelain which are low melting, do not discolor the porcelain, are repeatedly castable, and making possible brazing joints. These alloys containing 20 to 65% gold, 25 to 65% palladium, 0 to 7% gallium, 0.2 to 11% indium and/or tin, 0 to 2% copper, 0.05 to 1% ruthenium, iridium and/or rhenium, 0 to 1% vanadium, 0 to 1% iron and additionally 0.5 to 15% cobalt, with the proviso that the content of base metals must exceed 5%.
    Type: Grant
    Filed: February 22, 1985
    Date of Patent: May 27, 1986
    Assignee: Degussa Aktiengesellschaft
    Inventor: M. H. A Nawaz
  • Patent number: 4576639
    Abstract: Hydrogen storage metal material consisting of Ti-Fe-Mm which contains Mm in an atomic ratio in the range of from 0.015 to 0.1 with respect to Fe and optionally containing S in an atomic ratio in the range of from 0.004 to 0.04.
    Type: Grant
    Filed: May 23, 1984
    Date of Patent: March 18, 1986
    Assignee: Nippon Steel Corporation
    Inventors: Ryoichi Suzuki, Jiro Ohno, Hisashi Gondo
  • Patent number: RE33022
    Abstract: A ferromagnetic amorphous alloy having a composition represented by (Co.sub.x Ni.sub.y Fe.sub.z).sub.a M.sub.b G.sub.c, wherein M is Cr, Mo and/or W, G is Zr, Hf and/or Ti and x,y,z and a, b, c are selected to meet the conditions of x=1-y-z, 0.ltoreq.y.ltoreq.0.2, 0.ltoreq.z.ltoreq.0.7, a=1-b-c, 0.ltoreq.b.ltoreq.0.05 and 0.05.ltoreq.c.ltoreq.0.2 This amorphous alloy has a superior magnetic characteristic and a high thermal stability.
    Type: Grant
    Filed: November 5, 1987
    Date of Patent: August 15, 1989
    Assignees: Hitachi, Ltd., Hitachi Metals, Ltd., Research Development Corp. of Japan
    Inventors: Shinji Takayama, Yasuo Tsukuda, Kazuo Shiiki, Shigekazu Otomo, Mitsuhiro Kudo, Yasunobu Ogata, Yoshizo Sawada