Abstract: Disclosed are a structure of multi-layered clad plates and sheets for corrosion resistance and a fabricating method thereof. Provided are clad plates and sheets for corrosion resistance in which Ni, Co, Ti, Nb, V, and Zr having an excellent corrosion resistance, or an alloy thereof are bonded to cheap Fe, Cu, or an alloy thereof. Chemical compositions of the clad metals and structures of the clad plates and sheets are easily modified with service conditions of the clad plates and sheets. Also, this invention provides a more cost-effective method based on a resistance seam welding process for fabricating the corrosion-resistant clad plates and sheets.

Abstract: Getter multilayer structures are disclosed, embodiments of which include at least a layer of a non-evaporable getter alloy having a low activation temperature over a layer of a different non-evaporable getter material having high specific surface area, both preferably obtained by cathodic deposition. The multilayer NEG structures exhibit better gas sorbing characteristics and lower activation temperature lower than those of deposits made up of a single material. A process for manufacturing such structures includes depositing a first, high surface area NEG film on a support, and then depositing a thin over layer of low activation NEG film.

Abstract: A method of making a multi-layered composite material having a layer of a first metal and a layer of a second incompatible metal, separate from the first metal, the method involving hot rolling a multi-layered assembly of the first metal; the second metal; and a composite interlayer between the first metal and the second metal; wherein the composite interlayer having a first outer layer of a first composite metal compatible with the first metal; a second outer layer of a second composite metal compatible with the second metal; and an interlayer metal bonded between the first composite metal and the second composite metal; and wherein the first metal is adjacent the first composite metal and the second metal is adjacent the second composite metal; to effect production of the multi-layered composite material. The invention is valuable for producing a bonded composite of a hardened steel, such as an armour steel, with GA14V titanium.

Abstract: A turbine component comprises a substrate; and a crystalline coating disposed on a surface of the substrate, wherein the crystalline coating comprises tin and yttrium in an amount greater than or equal to about 0.05 atomic percent based upon the total coating. A method of making a turbine component comprises disposing a coating composition on a substrate, wherein the coating composition comprises tin and yttrium in an amount greater than or equal to about 0.1 atomic percent based upon the total coating composition. A crystalline coating comprises tin and yttrium in an amount greater than or equal to about 0.05 atomic percent based upon the total coating.

Abstract: A method of sputtering a Ta layer comprised of alpha phase Ta on a Cu layer. An embodiment includes a Ta sputter deposition on a Cu surface at a substrate temperature less than 200° C. Another embodiment has a pre-cooling step at a temperature less than 100° C. prior to Ta layer sputter deposition. In another non-limiting example embodiment, a pre-clean step comprising an inert gas sputter is performed prior to the tantalum sputter. Another non-limiting example embodiment provides a semiconductor structure comprising: a semiconductor structure; a copper layer over the semiconductor structure; a tantalum layer on the copper layer; the tantalum layer comprised alpha phase Ta; a metal layer on the tantalum layer.

Abstract: Methods to at least partially reduce a niobium oxide are described wherein the process includes heat treating the niobium oxide in the presence of a getter material and in an atmosphere which permits the transfer of oxygen atoms from the niobium oxide to the getter material, and for a sufficient time and at a sufficient temperature to form an oxygen reduced niobium oxide. Niobium oxides and/or suboxides are also described as well as capacitors containing anodes made from the niobium oxides and suboxides.

Abstract: A tantalum or tungsten target-backing plate assembly which comprises a tantalum or tungsten target and a copper alloy backing plate that are subject to diffusion bonding via an aluminum- or aluminum alloy-sheet insert material at least 0.5 mm thick, and which is provided with diffusion bonded interfaces between the respective materials, wherein the assembly suffers only a small deformation after diffusion bonding and is free from separation between the target and the backing plate or from cracking even when the target material and the backing plate differ greatly in thermal expansion, and can survive high power sputtering; and a production method therefor.

Abstract: A turbine component comprises a substrate; and a crystalline coating disposed on a surface of the substrate, wherein the crystalline coating comprises tin and yttrium in an amount greater than or equal to about 0.05 atomic percent based upon the total coating. A method of making a turbine component comprises disposing a coating composition on a substrate, wherein the coating composition comprises tin and yttrium in an amount greater than or equal to about 0.1 atomic percent based upon the total coating composition. A crystalline coating comprises tin and yttrium in an amount greater than or equal to about 0.05 atomic percent based upon the total coating.

Abstract: Disclosed are a structure of multi-layered clad plates and sheets for corrosion resistance and a fabricating method thereof. Provided are clad plates and sheets for corrosion resistance in which Ni, Co, Ti, Ni, V, and Zr having an excellent corrosion resistance, or an alloy thereof are bonded to cheap Fe, Cu, or an alloy thereof: Chemical compositions of the clad metals and structures of the clad plates and sheets are easily modified with service conditions of the clad plates and sheets. Also, this invention provides a more cost-effective method based on a resistance seam welding process for fabricating the corrosion-resistant clad plates and sheets.

Abstract: The present invention is directed to a process for depositing at least one layer (3) based on tungsten and/or on molybdenum by chemical vapor deposition on a non-conductive substrate (1), such as glass, ceramic, glass-ceramic, or polymer, which includes providing at least one tungsten- and/or molybdenum-containing precursor in the form of a metal halide and/or of an organometallic compound, and at least one reducing agent, such as hydrogen or silane, to form the at least one metal layer. The present invention also relates to the substrate obtained by the preceding process and its applications, especially for producing a glazing, mirrors, or emissive screens.

Abstract: A thin-film magnet formed from a gas-phase reaction of tetracyanoetheylene (TCNE) OR (TCNQ), 7,7,8,8-tetracyano-P-quinodimethane, and a vanadium-containing compound such as vanadium hexcarbonyl (V(CO)6) and bis(benzene)vanalium (V(C6H6)2) and a process of forming a magnetic thin film upon at least one substrate by chemical vapor deposition (CVD) at a process temperature not exceeding approximately 90° C. and in the absence of a solvent. The magnetic thin film is particularly suitable for being disposed upon rigid or flexible substrates at temperatures in the range of 40° C. and 70° C. The present invention exhibits air-stable characteristics and qualities and is particularly suitable for providing being disposed upon a wide variety of substrates.

Abstract: A component of a recording device comprising a magnetic layer, means for improving corrosion resistance of the magnetic layer and a carbon overcoat, and a method of making and using the same are disclosed. The means for improving corrosion resistance of the magnetic layer comprises a sealing layer comprising a refractory metal or a refractory metal-containing alloy.

Abstract: An article, such as an airfoil having a melting temperature of at least about 1500° C. and comprising a first piece and a second piece joined by a braze to the first piece. The first piece comprises one of a first niobium-based refractory metal intermetallic composite and a first molybdenum-based refractory metal intermetallic composite, and the second piece comprises one of a second niobium-based refractory metal intermetallic composite and a second molybdenum-based refractory metal intermetallic composite. The braze joining the first piece to the second piece comprises a first metallic element and a second metallic element, wherein the first metallic element is one of titanium, palladium, zirconium, niobium, and hafnium, and wherein the second metallic element is one of titanium, palladium, zirconium, niobium, hafnium, aluminum, chromium, vanadium, platinum, gold, iron, nickel, and cobalt, the first metallic element being different from the second metallic element.

Abstract: An airfoil having a melting temperature of at least about 1500° C. and comprising a first piece and a second piece joined by a braze to the first piece. The first piece comprises one of a first niobium-based refractory metal intermetallic composite and a first-based refractory metal intermetallic composite, and the second piece comprises one of a second niobium-based refractory metal intermetallic composite and a second molybdenum-based refractory metal intermetallic composite. The braze joining the first piece to the second piece is a semi-solid braze that comprises a first component and a second component.

Abstract: An article, particularly a metallic article, is coated with a multi-layer coating having the color or appearance of dark copper. The coating comprises a chromium, refractory metal or refractory metal alloy adhesion promoting layer, a titanium-zirconium alloy nitride or titanium-zirconium alloy carbonitride protective and color layer, and a titanium-zirconium alloy oxide or titanium-zirconium oxynitride color enhancing layer.

Abstract: An airfoil having a melting temperature of at least about 1500° C. and comprising a first piece and a second piece joined at a bonded region to the first piece by a diffusion bond. The first piece comprises one of a first niobium-based refractory metal intermetallic composite and a first molybdenum-based refractory metal intermetallic composite. The second piece comprises one of a second niobium-based refractory metal intermetallic composite and a second molybdenum-based refractory metal intermetallic composite. The diffusion bond is formed from a first metallic element disposed on a first surface of the first piece and a second metallic element disposed on at least one of the first surface and a second surface of the second piece, the second surface contacting the first surface, wherein the first and second metal form a composition having a melting temperature less than about 1400° C. This abstract is submitted in compliance with 37 C.F.R. 1.

Abstract: An airfoil having a melting temperature of at least about 1500° C. and comprising a first piece and a second piece joined by a braze to the first piece. The first piece comprises one of a first niobium-based refractory metal intermetallic composite and a first molybdenum-based refractory metal intermetallic composite, and the second piece comprises one of a second niobium-based refractory metal intermetallic composite and a second molybdenum-based refractory metal intermetallic composite. The braze joining the first piece to the second piece comprises one of germanium and silicon, and one of chromium, titanium, gold, aluminum, palladium, platinum, and nickel. This abstract is submitted in compliance with 37 C.F.R. 1.72(b) with the understanding that it will not be used to interpret or limit the scope of or meaning of the claims.

Abstract: A gas turbine engine abradeable seal system is provided comprising a seal assembly and a cooperating interacting turbine blade. The turbine blade has a tip portion containing cubic boron nitride abrasive particles and the seal assembly has a superalloy substrate with a bond coat thereon having a surface roughness of at least 300 RA and a porous ceramic abradeable seal material on the bond coat having a porosity of from 5 to 15 volume %.

Abstract: In accordance with the invention a reactive multilayer foil is fabricated by providing an assembly (stack or multilayer) of reactive layers, inserting the assembly into a jacket, deforming the jacketed assembly to reduce its cross sectional area, flattening the jacketed assembly into a sheet, and then removing the jacket. Advantageously, the assembly is wound into a cylinder before insertion into the jacket, and the jacketed assembly is cooled to a temperature below 100° C. during deforming. The resulting multilayer foil is advantageous as a freestanding reactive foil for use in bonding, ignition or propulsion.

Abstract: An environmentally resistant coating for improving the oxidation resistance of a niobium-based refractory metal intermetallic composite (Nb-based RMIC) at high temperatures, the environmentally resistant coating comprising silicon, titanium, chromium, and niobium. The invention includes a turbine system having turbine components comprising at least one Nb-based RMIC, the environmentally resistant coating disposed on a surface of the Nb-based RMIC, and a thermal barrier coating disposed on an outer surface of the environmentally resistant coating. Methods of making a turbine component having the environmentally resistant coating and coating a Nb-based RMIC substrate with the environmentally resistant coating are also disclosed.

Abstract: Valve metal articles such as wire, sheet or powder having a second metal, preferably in a peripheral margin, prepared by coating the valve metal with a salt solution of the metal additive and heat treating in the presence of an oxygen getter to remove the oxygen from the valve metal and the anion of the metal salt to form the metal additive. For tantalum wire a preferred second metal is nickel. A preferred oxygen getter is magnesium. Nickel-containing tantalum wire is useful for enhance bonding to sintered pressed tantalum powder pellets in the production of electrolytic capacitors.

Abstract: A method of doping vanadium pentoxide with silver comprising the steps of: providing vanadium pentoxide gel providing stable colloidal silver and combining the vanadium pentoxide gel and the colloidal silver at room temperature for a period sufficient for vanadium (+5) to be electrochemically reduced to vanadium (+4) and for silver to be oxidized (+1).

Abstract: An electrical conductor for use in an electronic structure is disclosed which includes a conductor body that is formed of an alloy including between about 0.001 atomic % and about 2 atomic % of an element selected from the group consisting of Ti, Zr, In, Sn and Hf; and a liner abutting the conductor body which is formed of an alloy that includes Ta, W, Ti, Nb and V. The invention further discloses a liner for use in a semiconductor interconnect that is formed of a material selected from the group consisting of Ti, Hf, In, Sn, Zr and alloys thereof, TiCu3, Ta1−XTix, Ta1−X, Hfx, Ta1−X, Inxy, Ta1−XSnx, Ta1−XZrx.

Abstract: An environmentally resistant coating for improving the oxidation resistance of a niobium-based refractory metal intermetallic composite (Nb-based RMIC) at high temperatures, the environmentallly resistant coating comprising silicon, titanium, chromium, and niobium. The invention includes a turbine system having turbine components comprising at least one Nb-based RMIC, the environmentally resistant coating disposed on a surface of the Nb-based RMIC, and a thermal barrier coating disposed on an outer surface of the environmentally resistant coating. Methods of making a turbine component having the environmentally resistant coating and coating a Nb-based RMIC substrate with the environmentally resistant coating are also disclosed.

Abstract: A method for manufacturing a Sn based alloy containing a finely dispersed Sn-Ti compound by the steps comprising melting Sn by heating at 1300 to 1500° C in vacuum or under an inert gas atmosphere, adding 0.1 to 5% by weight of Ti followed by melting by heating, and casting the molten alloy into a copper mold directly or through a pouring cup. The Sn based alloy obtained by this method contains the Sn-Ti compound having a maximum particle diameter of 30 &mgr;m and mean particle diameter of 5 to 20 &mgr;m. A precursor of a Nb3Sn wire is also obtained by an inner diffusion method using this Sn based alloy. The Nb3Sn wire manufactured by using the Sn based alloy of the present invention exhibits excellent superconductive characteristics. The method of the present invention enables the ingot to be free from a shrinkage cavity appearing during the manufacturing process.

Abstract: A method of producing an Nb—Sn compound superconducting wire precursor includes forming composite filament materials, each filament including a niobium material of an Nb-based metal and a titanium material of pure Ti enveloped in the niobium material; forming a composite rod in which composite filament materials are arranged in a matrix of a Cu-based metal but not in contact with one another, the matrix containing Sn diffused by heat treatment to combine with the niobium material to form a compound; and drawing the composite rod.

Abstract: A refractory metal intermetallic composition comprising titanium (Ti), hafnium (Hf), silicon (Si), aluminum (Al), chromium (Cr), germanium (Ge), tin (Sn), iron (Fe), and a balance of niobium (Nb) for use in composite structures having applications in turbine components.

Abstract: An electrical conductor for use in an electronic structure is disclosed which includes a conductor body that is formed of an alloy including between about 0.001 atomic % and about 2 atomic % of an element selected from the group consisting of Ti, Zr, In, Sn and Hf; and a liner abutting the conductor body which is formed of an alloy that includes Ta, W, Ti, Nb and V. The invention further discloses a liner for use in a semiconductor interconnect that is formed of a material selected from the group consisting of Ti, Hf, In, Sn, Zr and alloys thereof, TiCu3, Ta1−XTix, Ta1−XHfx, Ta1−XInxy, Ta1−XSnx, Ta1−XZrx.

Abstract: A hydride battery electrode is coated with palladium or a palladium alloy to improve hydride storage properties and recycle characteristics. A hydrogen purification membrane including a metallic substrate likewise has improved properties upon coating with palladium and a surface species of an alkali metal, alkaline earth element or alkaline earth cation. Novel metal hydrogen purification membranes include vanadium alloyed with at least 1 to 20 atomic percent nickel and/or 1 to 20 atomic percent cobalt and/or 1 to 20 atomic percent palladium.

Abstract: A Cu-containing Nb3Al multifilamentary superconductive wire having a multifilamentary (superfine multi-core structure that a large number of micro-complex cores each obtained by complexing a Cu—Al alloy containing Cu in an amount of more than 0.2 at. % and at most 10 at. % in Nb are embedded in Nb, Ta, an Nb alloy or a Ta alloy as a matrix, wherein in the micro-complex cores, an A15 phase compound structure is formed by rapid heating at a temperature of 1,700° C. or more for 2 seconds or less and quenching to approximately room temperature, and further additionally heat-treated at a temperature of 650 to 900° C. This superconductive wire has high Jc in a low magnetic field, can be applied to all magnetic fields of 29 T or less, and is excellent in Jc characteristics in a high magnetic field in comparison with an Nb3Al wire.

Abstract: Refractory metal articles having hither than normal impurity levels of concentrations of additive species near the surface that promote chemically enhanced sintering without any adverse effect on function properties, including, among others, tantalum or niobium lead wires that form assemblies useful as electrolytic capacitor anodes and the like, as made by surface oxidation of the wire, embedding a wire end in a loose mass of the powder and sintering to producing assemblies of enhanced structural integrity and affording stable electrical characteristics of electrical devices including such assemblies.

Abstract: An Nb—Sn compound superconducting wire precursor comprising a matrix of a Cu-base metal, a plurality of composite filaments each composed of a niobium layer of an Nb-base metal and a titanium layer of pure Ti formed so as to be enveloped in the inside of the niobium layer, and Sn diffused in the matrix by heat treatment so as to be combined with the niobium layer to form a compound, the plurality of composite filaments being embedded in the matrix so as not to be in contact with one another.

Abstract: In accordance with the invention a reactive multilayer foil is fabricated by providing an assembly (stack or multilayer) of reactive layers, inserting the assembly into a jacket, deforming the jacketed assembly to reduce its cross sectional area, flattening the jacketed assembly into a sheet, and then removing the jacket. Advantageously, the assembly is wound into a cylinder before insertion into the jacket, and the jacketed assembly is cooled to a temperature below 100° C. during deforming. The resulting multilayer foil is advantageous as a freestanding reactive foil for use in bonding, ignition or propulsion.

Abstract: A magnetic recording medium comprising a non-magnetic substrate having thereon a non-magnetic undercoat, a magnetic film and optionally a protective film. The magnetic film comprises a material containing Co as a main component. The non-magnetic undercoat comprises at least two layers including a first undercoat film and a second undercoat film provided on the first undercoat film. The first undercoat film comprises a material containing Cr as a main component, and the second undercoat film comprises a material selected from the group consisting of a Cr/Nb-base alloy, a Cr/W-base alloy, a Cr/V-base alloy and a Cr/Mo-base alloy as a main component.

Abstract: An Nb—Sn compound superconducting wire precursor comprising a matrix of a Cu-base metal, a plurality of composite filaments each composed of a niobium layer of an Nb-base metal and a titanium layer of pure Ti formed so as to be enveloped in the inside of the niobium layer, and Sn diffused in the matrix by heat treatment so as to be combined with the niobium layer to form a compound, the plurality of composite filaments being embedded in the matrix so as not to be in contact with one another.

Abstract: The application of polypropylene carbonate in solution to valve metal powders having relatively high surface area, then evaporating the solvent under static (non-agitating) conditions. The static drying of the coated valve metal powder produces a semi-solid cake which may be converted into a free-flowing powder via screening. Valve metal powders so-coated with polypropylene carbonate are particularly well-suited for the fabrication of powder metallurgy anode bodies used for the manufacture of electrolytic capacitors.

Abstract: In a magnetic storage apparatus having a magnetic recording medium, a drive unit for driving this medium in a prespecified recording direction, a magnetic head assembly including a recorder section and reproduction section, means for causing the magnetic head to move relatively with respect to the magnetic record medium, and a record/playback signal processor means for performing signal inputting to the magnetic head and for effecting reproduction of an output signal from the magnetic head, the reproduction section of said magnetic head is composed of a magnetic head of the magneto-resistance effect type, while said magnetic record medium is structured including a substrate and a magnetic layer formed thereover with one or several underlayers being sandwiched therebetween, wherein at least one of the underlayers is a specific layer that is made of amorphous or microcrystalline materials containing therein Ni as the principal or main component thereof and further containing at least one kind of element as sele

Abstract: A sintered electrode of high-melting metal (for example tungsten) is produced from spherical metal powder having a well defined particle size. The mean particle size is from 5 to 70 &mgr;m. The particle size distribution covers a range from at most 20% below to at most 20% above the mean particle size.

Abstract: A corrosion resistant, multi-layer structure on a substrate including an adhesion metallic layer on the substrate, a cushion metallic layer on the adhesion layer, a diffusion barrier layer on the cushion layer, and an impermeable gold layer that encapsulates all the layers, is substantially even on all sides of the layers, and contacts a region on the substrate adjacent the layers to prevent oxidation and corrosion.

Abstract: The present invention provides a lead frame material and a process for manufacturing a lead frame material. The process includes forming an intermediate layer on a lead frame substrate by vacuum deposition and forming a top protective layer on the intermediate layer by vacuum deposition. By using vacuum deposition, the coating material can be selected from a wider variety of materials; thus, coatings with novel compositions can be formed. The intermediate layer can be Ni, Ag, W, Zn, Cr, Mo, Cu, Sn, Al, Ta, Co, Nb, or alloys thereof, and the top protective layer can be Pt, Ir, Re, Ru, Rh, Pd, Au, Ag, or alloys thereof.

Abstract: A method for crystallizing an amorphous silicon thin-film is provided, in which amorphous silicon thin-films on a large-area glass substrate for use in a TFT-LCD (TFT-Liquid Crystal Display) are crystallized uniformly and quickly by a scanning method using a linear lamp to prevent deforming of the glass substrate. The crystallization method includes the steps of forming an amorphous silicon thin-film on a glass substrate, and illuminating a linear light beam on the amorphous silicon thin-film from the upper portion of the glass substrate according to a scanning method. The crystallization method is applied to a polycrystalline silicon thin-film transistor manufacturing method including the steps of forming an amorphous silicon thin-film on a glass substrate, and crystallizing the amorphous silicon of the thin-film transistor according to a scanning method using a linear light beam.

Abstract: An iridium-niobium alloy bond coat is used under a ceramic thermal barrier coating on turbine blades and vanes to improve the life of the thermal barrier coating. Between the bond coat and the substrate is an underlying protective coating which is either a low pressure plasma sprayed coating such as a NiCoCrAlY alloy or a vapor deposited coating such as tantalum, nickel-tantalum or rhenium. Heat treatment and preoxidation procedures may be used to form the desirable bonds and materials.

Abstract: A reproducing layer, an intermediate layer, and a recording layer are successively stacked. The reproducing layer is made of a perpendicularly magnetized film whose domain wall coercivity is relatively smaller and whose domain wall mobility is relatively larger as compared with the recording layer around a reproducing temperature. When the reproducing layer, the intermediate layer, and the recording layer have Curie temperatures of Tc1, Tc2, and Tc3, Tc1, Tc2, and Tc3 satisfy a relationship of Tc2<Tc1<Tc3. Upon reproducing information, the reproducing layer is partially heated to more than the Curie temperature by irradiating with a light beam. This arrangement makes it possible to expand and reproduce a domain without causing a repetition of reproduction and to reproduce a signal having a period which is not more than an optical diffraction limit without reducing an amplitude of the reproduced signal, thereby dramatically improving a recording density.

Abstract: A durable chair mat has a resin impregnated backing sheet base layer, a polyvinylchloride middle layer and a wood veneer top layer laminated together.

Abstract: The present invention is directed to polishing pads useful in determining an end to the useful wear life thereof. In a simple embodiment of the present invention, a polishing pad that is used with slurries is dyed on one side in a manner that causes the dye to permeate the pad to a limited depth that does not cause total coloring. Another embodiment of the present invention involves a fixed abrasive pad that has fixed abrasives embedded into the pad to a selected depth where at least one color level is within the portion of the pad that contains the fixed abrasives. After dyeing the pad, the pad is attached to the polishing platen. During the polishing operation, a color change signals a time to stop the polishing operation and change the pad. With multiple colors in the pad, limited only by the ability to dye the pad with uniform depth levels, characteristic wear patterns can be observed and adjustments made accordingly to prolong and optimize pad life.

Abstract: An abrasive shaped article composed of at least 90% by weight, based on the weight of the abrasive shaped article, of silica and having a bulk density of 0.2 g/cm.sup.3 to 1.5 g/cm.sup.3, a BET specific surface area of 10 m.sup.2 /g to 400 m.sup.2 /g and an average particle diameter of 0.001 .mu.m to 0.5 .mu.m. An abrasive disc having fitted thereto at least one of the abrasive shaped article is advantageously used for polishing a material such as substrate. Preferably at least two kinds of abrasive shaped articles are fitted to the supporting auxiliary, at least one kind of which has a bulk density of 0.7 g/cm.sup.3 to 1.5 g/cm.sup.3 and at least one kind of which has a bulk density of at least 0.2 g/cm.sup.3 but smaller than 0.7 g/cm.sup.3.

Abstract: The invention relates to the field of high temperature composites made by the chemical vapor infiltration and deposition of a binding matrix within a porous structure. More particularly, the invention relates to pressure gradient processes for forcing infiltration of a reactant gas into a porous structure, apparatus for carrying out those processes, and the resulting products. The invention is particularly suited for the simultaneous CVI/CVD processing of large quantities (hundreds) of aircraft brake disks.

Abstract: Valve metal articles such as wire, sheet or powder having a second metal, preferably in a peripheral margin, prepared by coating the valve metal with a salt solution of the metal additive and heat treating in the presence of an oxygen getter to remove the oxygen from the valve metal and the anion of the metal salt to form the metal additive. For tantalum wire a preferred second metal is nickel. A preferred oxygen getter is magnesium. Nickel-containing tantalum wire is useful for enhance bonding to sintered pressed tantalum powder pellets in the production of electrolytic capacitors.

Abstract: A spherical annular seal member which has a cylindrical inner surface defining a through hole in a central portion thereof as well as an outer surface formed in the shape of a partially convex spherical surface, and which is used particularly in an exhaust pipe joint, includes: a reinforcing member made from a compressed metal wire net; a heat-resistant material filling meshes of the reinforcing member and compressed in such a manner as to be formed integrally with the reinforcing member in mixed form, the heat-resistant material and the reinforcing member being provided as principal components in an interior portion of the spherical annular seal member which extends from the cylindrical inner surface to a vicinity of the outer surface formed in the shape of the partially convex spherical surface, aluminum phosphate being also formed integrally with the reinforcing member and the heat-resistant material in mixed form; a sliding layer formed of a lubricating composition which is constituted of boron nitride an

Abstract: The present invention relates to high-coercivity magnetic recording media used in a hard disk drive. The magnetic recording medium comprises a nonmagnetic substrate, a seed layer comprising NiAl alloy sputtered onto the substrate, a sublayer comprising CrV alloy sputtered onto the seed layer, a magnetic layer comprising CoCrPtTaNb alloy sputtered onto the sublayer, and a carbon overcoat sputtered onto the magnetic layer. The magnetic recording medium of such a structure has improved signal-to-noise ratio, coercivity, overwrite capability, and orientation ratio thereby greatly improving the storage density and read/write capacity of the magnetic recording medium. Furthermore, the coercivity of the magnetic layer of CoCrPtTaNb alloy according to the present invention can be as high as 4000 Oersteds even without the use of the NiAl seed layer.