Abstract: A method is disclosed of producing a corrosion resistant product from a billet comprising a core of finely divided ferrous swarf compacted into briquettes in a stainless steel jacket and in which the billet is heated to a temperature at which it becomes sufficiently plastic to be worked into a finished or semi-finished product by an operation such as rolling. An additive is pre-mixed with the swarf which, when the billet is heated, reacts to form an atmosphere inside the jecket which displaces or prevents the formation of carbon dioxide and/or other gases which at elevated temperatures would oxidise the stainless steel to form chrome oxides at the interface between the jacket and the core. The additive is preferably in powder form. Examples of suitable additives include urea and ammonium chloride.

Abstract: Hard disk drive components, such as, sliders, load beams, support arms, actuators, actuator bearings, spacers, clamps, spindles, ball bearings, thrust bearings, journal bearings, base plates, housings, and covers, formed of a multi-phase ceramic-based material. One method of making the hard disk drive components includes (a) forming a porous body of ceramic; (b) infiltrating a liquid into the pores of the ceramic body; (c) solidifying the infiltrated liquid; and (d) machining the metal-infiltrated ceramic body to form the hard disk drive component.

Abstract: An end bearing used in an automatic transmission gear having a one-way clutch mechanism having multi-layers comprising a back metal, a copper alloy layer, a tin layer having a thickness of 0.5 to 4 .mu.m and a Cu-Sn intermetallic compound layer having a thickness of 0.5 to 4 .mu.m and having a Microvickers hardness of from 400 to 700, which intermetallic compound layer is positioned just under the tin layer and which intermetalic compound layer is are formed on the copper alloy of such an end bearing. According to the present invention, it is possible to improve anti-seizure characteristics of an end bearing even under a condition of a decrease in the amount of oil supply which decrease occurs in higher engine speed, thus enabling the provision of an end bearing having superior anti-seizure characteristics.

Abstract: A parting compound in the form of a monolithic component (3a, 3b) is used in accordance with the invention for the hot forming of encased metal parts (2). This component consists of powder particles strengthened by sintering. The parting compound material is brittle at ambient temperature and at the deforming temperature of the metal parts is plastically deformable or free flowing in a highly viscous manner.

Abstract: A corrosion resistant cermet comprises a ceramic component (e.g., WC) and a binder alloy comprised of a major component (e.g., one or more of iron, nickel, cobalt, their mixtures, and their alloys) and at least one additive component (e.g., one or more of ruthenium, rhodium, palladium, osmium, iridium, and platinum). Plungers for hyper compressors used in the corrosive environments generated during the manufacture of low density polyethylene (LDPE) or ethylene copolymers are an example of the use of the corrosion resistant cermet.

Abstract: A magnetoresistance-effect element includes a substrate, and a magnetoresistance-effect film disposed on the substrate. The magnetoresistance-effect film includes an alloy film containing ferromagnetic metal atoms and non-magnetic metal atoms, which have the property relative to each other that they are mutually insoluble in both solid and liquid phases. The magnetoresistance-effect film further includes at least three soft magnetic films arranged as discontinuous areas in contact with the alloy film and magnetically coupled therewith for reducing an operating magnetic field strength of the element.

Abstract: A honeycomb structure includes a honeycomb body of electrically conductive material. The honeycomb body has regions of different material with different specific electrical resistance. The honeycomb body is electrically divided by slots and/or electrically insulating layers for causing an electric current to flow along a winding path through the honeycomb body. A method for producing a honeycomb body having regions of different specific electrical resistances includes supplying two different compositions of metal powder or a mixture of metal and ceramic powder to an extruder, while guiding one of the compositions to an inner region and the other of the compositions to an outer region of the extruder surrounding the inner region. The different compositions are co-extruded to make a monolithic honeycomb body. The honeycomb body is fired, sintered or physically-chemically treating differently from one region to another. Offset slots are formed in the extruded honeycomb body.

Abstract: The present invention relates to alloys in which the essential constituent is aluminum, metal deposits produced from these alloys, substrates coated with these alloys and the applications of these alloys. The alloys of the present invention are characterized in thatthey have the following atomic composition (I):Al.sub.a Cu.sub.b Co.sub.b' (B,C).sub.c M.sub.d N.sub.e I.sub.f(I)a+b+b'+c+d+e+f=100, expressed as number of atoms, a.gtoreq.50, 0.ltoreq.b<14, 0.ltoreq.b'.ltoreq.22, 0<b+b'.ltoreq.30, 0.ltoreq.c.ltoreq.5, 8.ltoreq.d.ltoreq.30, 0.ltoreq.e.ltoreq.4, f.ltoreq.2, where M represents one or more elements chosen from Fe, Cr, Mn, Ni, Ru, Os, Mo, V, Mg, Zn and Pd; N represents one or more elements chosen from W, Ti, Zr, Hf, Rh, Nb, Ta, Y, Si, Ge and the rare earths; I represents the inevitable production impurities;and they contain at least 30% by mass of one or more quasicrystalline phases.

Abstract: An element for thermally protecting a substrate is deposited on the substrate and comprises a quasicrystalline aluminium alloy having a thermal diffusivity lower than 2.5.times.10.sup.-6 m.sup.2 /s at room temperature and a thermal diffusivity, within the temperature range 650.degree.-750.degree. C., which does not exceed its thermal diffusivity at room temperature by a factor greater than 3. The element may be used to provide heat barriers or bonding layers for substrates. The heat protection element, used in the form of a heat barrier or in the form of a bond coat for heat barriers, exhibits good thermal insulation properties, good mechanical properties, a low specific mass, good resistance to corrosion, and great ease of processing. Further, the invention is useful in limiting heat transfer towards or from parts and components of fittings in many household and industrial devices, for example, heating or cooking devices, smoothing irons, automobile components, and in aeronautic components.

Abstract: A wet type sliding apparatus in which a multilayer sliding member is used in the presence of a lubricating oil, characterized in that the multilayer sliding member is composed of (1) a backing metal layer, (2) a porous, sintered layer provided thereon and (3) a surface layer consisting essentially of polyetheretherketone formed by impregnating and coating the porous, sintered layer with a sliding resin consisting essentially of polyetheretherketone. The above sliding member has a small friction coefficient and excellent wear resistance. In particular, the sliding noise can be more effectively inhibited by adjusting the face roughness of the surface layer of the sliding member to 2 .mu.m or less.

Abstract: A conductive ink for making a conductive wiring comprises first and second metal grains dispersed in an organic material. The second metal grains are interposed between the first metal grains and they have a melting temperature that lies between the melting temperature of the first metal grains and the setting temperature of the organic material.

Abstract: A structural component is formed with an outer shell of sintered, solid, powder particles, and a porous core of sintered, hollow, bodies arranged in layers. The hollow bodies are of increased diameter in the layers in a direction from the outer periphery of the core towards the center of the core. The material of the outer shell and of the core is a metal or ceramic.

Abstract: A coated cemented carbide comprising: a substrate comprising a WC-based cemented carbide containing 4 to 10 wt. % of Co as a binder phase; based on a ratio in a mirror-polished texture of a cross section of the cemented carbide, 70% or more of WC crystals as a hard phase being classified into either of a group of fine particles A having a particle size of from 0.1 to 1 .mu.m and a group of coarse particles B having a particle size of from 3 to 10 .mu.m, the area ratio S.sub.A /S.sub.B of the fine particles A to the coarse particles B being in a range of from 0.22 to 0.45; and a coating layer disposed on a surface of the cemented carbide and having a total thickness in a range of from 5 to 100 .mu.m. The coating layer comprises at least one layer comprising at least one selected from the group consisting of: carbides, nitrides, carbonitrides, oxycarbides, and boronitrides of Ti, Zr, and/or Hf; and at least one layer comprising at least one selected from the group consisting of: Al.sub.2 O.sub.

Abstract: An induction motor is provided with a secondary portion 20 comprising an interlaced conductor/back-iron (or ferromagnetic) portion 60 and a purely ferromagnetic back-iron portion 62. The interlaced portion 60 comprises an electrically conductive lattice (or foam) material 61 having pores 63 filled with a ferromagnetic material which results in two interlaced lattices 61,63 which are continuous through a shared volume. The interlaced region 60 provides both good magnetic permeability for passing magnetic flux 30 and good electrical conductivity for flowing induced electrical currents necessary for induction motors. As a result, the effective magnetic gap G1 is minimized while also providing a low-cost induction motor. Alternatively, the lattice 61 may be a ferromagnetic material which is embedded with a conductor.

Abstract: An improved metal matrix composite which, in a preferred embodiment disclosed herein, utilizes boron carbide as the ceramic additive to a base material metal. The metal matrix composite of the present invention begins with the preparation of the boron carbide powder by particle size selection in a jet mill. The resulting powder and metal powder are then mixed by blending of powder of all the various elements such as by means of a conventional blender to uniformly mix powdered substances and avoid stratification and settling. After the particles have been sufficiently mixed, they are degassed and then placed into a die and then into a cylindrical container where the particulates are subjected to extremely high pressures transforming the elements into a solid ingot.

Abstract: A nitrogenous Al--Si powder metallurgical alloy contains at least 4 wt % and at most 15 wt % of nitrogen, with the remaining part consisting essentially of Al, Si and an unavoidable component. Consequently, a highly safe material which is lightweight and has a density of at most 3.0 g/cm.sup.3, a thermal expansion coefficient in the range of 5 to 10.times.10.sup.-6 /.degree.C., and a thermal conductivity coefficient of at least 0.2 cal/cm.multidot.sec.multidot..degree.C. has been obtained.

Abstract: A thermal spray powder for producing high hardness, low friction, wear resistant coatings on friction surfaces, comprising a blend of an agglomerated molybdenum/dimolybdenum carbide powder and a self-fluxing NiCrFeBSi alloy powder.

Abstract: A corrosion resistant cermet comprises a ceramic component (e.g., WC) and a binder alloy comprised of a major component (e.g., one or more of iron, nickel, cobalt, their mixtures, and their alloys) and at least one additive component (e.g., one or more of ruthenium, rhodium, palladium, osmium, iridium, and platinum).Plungers for hyper compressors used in the corrosive environments generated during the manufacture of low density polyethylene (LDPE) or ethylene copolymers are an example of the use of the corrosion resistant cermet.

Abstract: The invention relates to a magnetoresistance material, i.e. a conductive material that exhibits magnetoresistance, which is an inhomogeneous system consisting of a nonmagnetic matrix and ultrafine particles of a ferromagnetic material such as Co or Ni--Fe--Co dispersed in the nonmagnetic matrix. With the aim of reducing deterioration of the magnetoresistance effect, an alloy or mixture of at least two metal elements selected from Cu, Ag, Au and Pt is used as the material of the nonmagnetic matrix. Optionally, the nonmagnetic matrix may contain a limited quantity of a supplementary element selected from Al, Cr, In, Mn, Mo, Nb, Pd, Ta, Ti, W, V, Zr and Ir. A film of the magnetoresistance material can be formed on a substrate, and it is optional to interpose a buffer layer between the film and the substrate and/or cover the film with a protective layer.

Abstract: A metal insert at least partially embedded in a molded resin mass comprises a metal insert blank, and a substantial amount of nickel or nickel alloy granulations produced over a surface of the metal insert blank, and the size of the granulations is at most 1.0 .mu.m. The metal insert blank is treated by a first electrolytic plating process such that a substantial quantity of copper nuclei spreaded over the surface, and the copper nuclei are grown up as the nickel or nickel alloy granulations by a second electrolytic-plating process. The first electrolytic-plating process is controlled such that an average thickness of plating is from about 0.5 to about 1.0 .mu.m, and the second electrolytic-plating process is controlled such that an average thickness of plating is from about 0.5 to about 1.5 .mu.m.

Abstract: Polycrystalline diamond has non-uniform impurity concentration along the direction of thickness. The diamond near the rake surface has a lower impurity concentration. The diamond near the fixation surface has a higher impurity concentration. The diamond with the higher impurity concentration near the fixation surface alleviates strong stress or absorbs external shock. Owing to the higher impurity concentration of diamond near the fixation surface, the diamond tool excels in chip resistance or toughness. The diamond with a lower impurity concentration near the rake surface heightens abrasion resistance, adhesion resistance and strength.

Abstract: A brazeable aluminum material is composed of an aluminum core and a brazing agent layer consisting of a brazing agent thermally sprayed onto and covering a surface of the core. A number of unmolten minute particles of the brazing agent are present in the brazing agent layer, which contains at least an aluminum-silicon alloy and/or a mixture of aluminum and silicon. Characteristic features of a method of producing the brazeable aluminum material are the steps of: preparing a powder composed of minute particles; and thermally spraying the powder onto the aluminum core in such a state that only a surface of each minute particle is molten, with a pith of the particle remaining unmolten. The powder is an Al-Si alloy and/or a mixture of Al powder and Si powder.

Abstract: A multi-phase cemented ceramic article, method of making same, and the material thereof is disclosed which is useful for machining and forming of metals, including ferrous metals, titanium, aluminum and other metals. The article and its material preferably includes novel microstructures including platelets, a range of grain sizes which yields superior hardness and other characteristics, and a lower tungsten concentration within the binder phase than has been seen in the prior art. The preferred composition includes ultrafine WC, an ultrafine solid solution of (Ti, Ta, W)C, and a cobalt binder. Platelets are formed in-situ, eliminating the need to add them during manufacture for improving toughness.

Abstract: An article essentially consisting of one or more of Ti-Al intermetallic compounds is fabricated so as to have a volume ratio of voids no more than 3.5%, by preparing a mixture of materials selected from a group consisting of Ti, Ti alloys, Al, Al alloys, and Ti-Al compounds, having a composition suitable for forming a desired Ti-Al intermetallic compound, and heating said mixture so that said mixture may be sintered. Typically, the temperature and pressure for the heating or sintering process is appropriately selected so that the desired porosity may be obtained. The mechanical strength of an article according to the present invention is not only improved but is highly predictable, or, in other word, highly reliable. The fabrication costs can be reduced because the fabrication process involves only relatively low temperatures when pressing and heating the work at the same time.

Abstract: A heat-resistant member is constructed by having a ceramic coating layer deposited on the surface of a metallic substrate through the medium of a metallic bonding layer. The metallic bonding layer is composed of at least two layers, i.e. a layer of an aggregate of minute particles disposed on the metallic substrate side and a layer of an aggregate of coarse particles disposed on the ceramic coating layer side. Otherwise, the metallic bonding layer is composed of at least three layers, i.e. two layers of an aggregate of coarse particles disposed one each on the metallic substrate side and the ceramic coating layer side and one layer of an aggregate of minute particles interposed between these two layers of an aggregate of coarse particles. These layers are obtained by the low pressure ambient plasma thermal spraying using a fine powder or a coarse powder of an alloy resistant to corrosion and oxidation.

Abstract: A method for producing a composite element by causing a stream of gaseous rhenium hexafluoride to flow onto a carbon substrate in a chemical vapor deposition reaction. A flow of hydrogen gas causes a reduction of the rhenium hexafluoride to rhenium metal to thereby deposit a uniform layer of rhenium metal onto the surface of the carbon substrate. A fine grain rhenium coating on carbon is produced having an average particle diameter of from about 0.1 to about 25 micrometers. The elements may be used alone or several of them may be bonded together into various articles. Such elements and articles are useful as light weight, high temperature strength, corrosive gas resistant structural elements.

Abstract: A material for disposition on a surface comprising Fe, Co, or FeCo in the form of small single magnetic domain metallic clusters disposed in an insulating matrix of BN. The material may be utilized as a new absorbing material for radar microwave signals. Additionally, the material may be utilized on a magnetic storage substrate to form a new magnetic recording medium.

Abstract: A soldering composition is self melting and is auto-regulating. The solder composition (100) has a central core (102) made from a non-magnetic metal. A coating (105) of a magnetic material surrounds most or all of the central core. A solder layer (108) overlies the coating of magnetic material, and the solder layer has a melting temperature that is lower than the Curie temperature of the magnetic material. The auto-regulating temperature substantially corresponds to the Curie temperature. When the solder composition is placed in a field of alternating current, the magnetic material heats up and melts the solder coating. When the Curie temperature is reached, the magnetic material stops heating, thus controlling the maximum temperature of the soldering composition. As the temperature of the composition drops below the Curie temperature, the magnetic material again heats up, thus keeping the temperature of the solder constant.

Abstract: Reinforcement fibers are formed from a single crystal garnet body--suitably an aluminum garnet, desirably a rare earth aluminum garnet--having an epitaxial surface layer of a second garnet having a lattice constant larger than that of the body garnet so as to provide a compressive strain, to thereby strengthen the fiber.

Abstract: An element for thermally protecting a substrate is deposited on the substrate and comprises a quasicrystalline aluminum alloy having a thermal diffusivity lower than 2.5.times.10.sup.-6 m.sup.2 /s at room temperature and a thermal diffusivity, within the temperature range 650.degree.-750.degree. C., which does not exceed its thermal diffusivity at room temperature by a factor greater than 3. The element may be used to provide heat barriers or bonding layers for substrates. The heat protection element, used in the form of a heat barrier or in the form of a bond coat for neat barriers, exhibits good thermal insulation properties, good mechanical properties, a low specific mass, good resistance to corrosion, and great ease of processing. Further, the invention is useful in limiting heat transfer towards or from parts and components of fittings in many household and industrial devices, for example, heating or cooking devices, smoothing irons, automobile components, and in aeronautic components.

Abstract: Disclosed is an aluminum nitride body having graded metallurgy and a method for making such a body. The aluminum nitride body has at least one via and includes a first layer in direct contact with the aluminum nitride body and a second layer in direct contact with, and that completely encapsulates, the first layer. The first layer includes 30 to 60 volume percent aluminum nitride and 40 to 70 volume percent tungsten and/or molybdenum while the second layer includes 90 to 100 volume percent of tungsten and/or molybdenum and 0 to 10 volume percent of aluminum nitride.

Abstract: Disclosed is an aluminum nitride body having graded metallurgy and a method for making such a body. The aluminum nitride body has at least one via and includes a first layer in direct contact with the aluminum nitride body and a second layer in direct contact with, and that completely encapsulates, the first layer. The first layer includes 30 to 60 volume percent aluminum nitride and 40 to 70 volume percent tungsten and/or molybdenum while the second layer includes 90 to 100 volume percent of tungsten and/or molybdenum and 0 to 10 volume percent of aluminum nitride.

Abstract: A coated tool consisting of a cermet body and a refining layer thereon. The refining layer is a wear resistant layer of (Ti, Me) N, wherein Me is at least one metal which forms a stable oxide at a temperature above 700.degree. C.

Abstract: The Al-Si sintered alloy having good mechanical strength and elongation and is especially excellent in wear resistance, and a method for producing the same. The sintered alloy consists of 2.4-23.5% Si, 2-5% Cu, 0.2-1.5% Mg, 0.01-1% of transition metals and the balance of aluminum and unavoidable impurities, and has a dapple grain structure of an Al-solid solution phase and an Al-Si alloy phase containing dispersed pro-eutectic Si crystals having a maximum diameter of 5-60 .mu.m either in the whole body or in the surface contact portion, and the area ratio of the Al-solid solution phase in the grain structure is in the range of 20-80%.

Abstract: A dispersion-strengthened aluminum alloy having a composite structure containing a matrix of .alpha.-aluminum and a precipitation deposited phase of an intermetallic compound with the intermetallic compound in a volume ratio of not more than 35 vol. %, has both high strength and high toughness. The precipitation phase of the intermetallic compound has an aspect ratio of not more than 3.0, the .alpha.-aluminum has a crystal grain size which is at least twice the grain size of the precipitation phase of the intermetallic compound, and the crystal grain size of the .alpha.-aluminum is not more than 200 nm. It is possible to obtain an aluminum alloy having the aforementioned limited structure by carrying out first and second heat treatments on gas-atomized powder containing at least 10 vol. % of an amorphous phase or a green compact thereof and thereafter carrying out hot plastic working.

Abstract: A material for friction components made by a process including the steps of providing a first powder consisting of grains of a comparatively harder material with a comparatively higher coefficient of friction and an average grain size of from 60 to 100 microns, and a second powder consisting of grains of comparatively softer material with a comparatively lower coefficient of friction and an average grain size of from 60 to 100 microns; mixing the first powder and the second powder to form a powder mixture having a total volume; and subjecting the powder mixture to a pressure and temperature sufficient for the grains of the first powder to be intermixed with the comparatively softer material of the second powder so that the comparatively harder material substantially fills an intergranular space between the grains of the first powder to form the material for the friction components, the comparatively harder material occupying from 1/3 to 4/5 of the total volume of the powder mixture.

Abstract: A Zircaloy cladding having an outer region comprising fine precipitates and inner region comprising coarse precipitates is provided. The outer region comprises about 10% and the inner region comprises about 90% of the cladding wall thickness. Such Zircaloy tubing is resistant to propagation of cracks and at the same time resistant to corrosion in boiling water reactors (BWR). Resistance to damage caused by the pellet-cladding-interaction can be achieved by standard application of a zirconium or zirconium-alloy liner on the tubing inside surface.

Abstract: A TiCN-based cermet cutting insert superior in toughness with improved wear resistance includes a binding phase and at least two hard dispersion phases. One of the hard dispersion phases includes one of a duplex and triplex structure having a core structure containing at least one of titanium carbonitride and a carbonitride solid solution of Ti and one of a V, Cr, Ti, Nb, Zr, W and Mo (hereinafter referred to as a (Ti,M)CN. The other hard dispersion phase includes a single structure wherein the core structure is composed of at least one of (Ti,M)CN or (Ti,M)CN and TiCN.

Abstract: This invention discloses processes and articles for the manufacturing of composite plated articles comprising finely divided particulate matter dispersed within metallic matrices and having light emitting properties, such articles being useful in the metallization of articles and their reuse through subsequent rejuvenation, without damaging the base metal of said articles.

Abstract: A method for preparing foamed aluminum alloy composites comprising the steps of: (a) placing a liquid hardness-reinforcement composition into a tank, the hardness-reinforcement composition containing about 54.about.64 wt. % of an inorganic powder, about 35.about.45 wt. % of a nonflammable curable resin, and about 1 wt. % of a curing agent; (b) placing a foamed aluminum alloy plate having an internal porous body into the tank containing the hardness-reinforcement composition, then applying a pressure of about 10.about.50 Kg/cm.sup.2 onto the foamed aluminum alloy plate for about one to two hours so as to allow the hardness-reinforcement composition to soak into the foamed aluminum alloy plate and form a coated layer on the surface of the porous body; (c) removing the foamed aluminum alloy plate that has been coated with a layer of the hardness-reinforcement composition from the tank; and (d) drying and curing the curable nonflammable resin so as to form the foamed aluminum alloy composite.

Abstract: A coated palladium fine powder comprising palladium particles of a mean particle size in the range of 0.1 to 1.0 .mu.m which are coated with nickel or alloy of nickel with other metal are employable, optionally in combination with palladium particles or palladium-coated ceramic particles of a mean particle size in the range of 0.1 to 1.0 .mu.m, for preparing an electroconductive paste.

Abstract: Metal carbide supported polycrystalline diamond (PCD) compacts having improved shear strength and impact resistance properties, and a method for making the same under high temperature/high pressure (HT/HP) processing conditions. A sintered polycrystalline cubic boron nitrite (PCBN) compact interlayer is provided to be bonded at a first interface to a sintered PCD compact layer, and at a second interface to a cemented metal carbide support layer comprising particles of a metal carbide in a binder metal. The supported compact is characterized as having a substantially uniform sweep through of the binder metal from the cemented metal carbide support layer, which sweep through bonds the sintered PCD compact layer to the sintered PCBN interlayer, and the sintered PCBN interlayer to the cemented metal carbide support layer.

Abstract: A metal matrix composite reinforced with shape memory alloy is disclosed ch is formed by blending metal particles and shape memory alloy particles to form a homogeneous powder blend, and consolidating the powder blend to form a unitary mass. The unitary mass is then plastically deformed such as by extrusion in the presence of heat so as to cause an elongation thereof, whereby the metal particles form a matrix and the shape memory alloy partices align in the direction of elongation of the unitary mass. The composite can be used in structural applications and will exhibit shape memory characteristics.

Abstract: A method of manufacturing a lead-provided porous metal sheet comprises the steps of: forming a porous metal material having a metal layer on a surface of a framework of a porous base material comprising a foamed sheet and the like, by plating the porous base material and/or applying fine metal powders thereto; passing the porous metal material through a pair of rolls having a plurality of projections formed thereon to compress the porous metal material against the projections and reduce or eliminate pores so as to form one or more recesses extending; and forming solid metal portions by applying fine metal powders to the entire recesses.

Abstract: Process of imparting conductivity to a three-dimensional net-shaped porous sheet can be performed efficiently before carrying out electroplating process. Fine metallic powders are applied to the porous sheet made of a foamed sheet, a nonwoven sheet, a mesh sheet or a plurality of sheets layered one on the other, so that a conductive metallic layer is formed on the porous sheet. Then, an electroplated layer is formed on the surface of the conductive metallic layer. The conductive metallic layer remains when the porous sheet burned out. Consequently, a metallic layer of the conductive metallic layer and the electroplated layer forms the metallic framework of the metallic porous sheet.

Abstract: An improved method of making a monolayer abrasive tool using a relatively low melting point, soft filler metal alloy braze which possesses sufficiently high yield strength combined with a relatively high ductility and low elastic modulus to produce an exceptional bond between a monolayer of superabrasive particles and the tool substrate. The steps of the brazing process include applying a layer of the filler metal alloy including a an active metal in either pre-alloyed or as a mixture with the metal alloy and a monolayer of superabrasive crystals over the filler metal layer. This assembly is heated in a mon-oxidizing atmosphere such as a vacuum to melt the alloy and braze bond the superabrasive particles to the tool substrate. The alloy bond formed possess the properties of a ductility of at least 20 percent elongation, an elastic modulus of less than 15.times.10.sup.6 or less, and a yield strength preferably at least about 45,000 to 50,000 psi.

Abstract: A multi-layer bearing consists of a backing steel plate, a layer of Cu--Pb bearing alloy comprising, by weight, 1 to 20% of Ni and containing Pb-phase grains dispersed in the matrix, and an overlay of Pb alloy containing In. In in the overlay is diffused into the Pb-phase grains in the bearing alloy layer and forms a diffusion layer of high corrosion resistance in which In coexists with the Pb-phase grains, in an area of 30 to 200 .mu.m from the interface to the overlay. Even if the overlay is worn and the Cu--Pb bearing alloy layer is exposed, high corrosion resistance will be maintained.

Abstract: A solid lubricant coating system for use with a metal interface subject to high temperatures and wet lubrication, comprising agglomerates of particles of (i) solid lubricant particles selected from the group consisting of graphite, boron nitride, molybdenum disulfide, lithium fluoride, NaF, WS.sub.2, and calcium fluoride; and (ii) steel particles fused together and bounding said solid lubricant particles at least at certain intersections, certain portions of said steel particles being air-hardened to a high hardness upon exposure of the coating to the interface at high temperatures.

Abstract: A sliding-contact material comprising a backing steel plate optionally plated with Cu, and a layer of sintered copper alloy formed on one of the surfaces of the backing steel plate, wherein the layer of sintered copper alloy consists essentially of 4 to 20 wt % Sn, 1 to 10 wt % Ni, 0.05 to 1 wt % B, and balance of Cu and incidented impurities, and does not practically include P, and the sintered copper alloy has a Vickers hardness not less than Hv 100.

Abstract: A conductive contact for use with metal oxide superconductors is described. The conductive contact comprises a metal contact which is attached by a diffusion bonding means to a superconductive metal oxide substrate. In a preferred embodiment, diffusion bonding means comprises a metal paint which includes metal particles and an organic binder which is heated to pyrolized the organic binder and form metallic diffusion bonds to the metal contact and metal oxide substrate. The invention also comprises a method for forming the conductive contact which includes selecting the superconducting metal oxide substrate, coating the substrate with a metal paint, placing the metal contact in touching contact with the metal paint and heating the combination of materials described above to pyrolized the organic binder and coalesce the metal particles.