Abstract: Metal matrix composite wires that include at least one tow comprising a plurality of substantially continuous, longitudinally positioned fibers in a metal matrix. The fibers are selected from the group of ceramic fibers carbon fibers, and mixtures thereof. The wires have certain specified characteristics such as roundness values, roundness uniformity values, and/or diameter uniformity values.

Abstract: There is disclosed a material wire for wear-resistant and trobologically favorable shaped bodies manufactured by the arc spraying method, which comprises a covering (12) and a filling (14). The covering (12) comprises an alloy based on aluminium with at least one further alloy component, for example magnesium or manganese. The filling (14) comprises further alloy components for the resulting alloy of the shaped body, for example silicon. The filling (14) may apart from the silicon also comprise further components, for example aluminium and/or boron. By way of this the composition and the material properties of the resulting alloy of the shaped body may be set.

Abstract: Wire comprising polycrystalline &agr;-Al2O3 fibers within a matrix of substantially pure elemental aluminum, or an alloy elemental aluminum and up to about 2% copper.

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: A tribological coating made of a copper-free highly hypereutectic aluminum/silicon alloy and/or of a copper-free aluminum/silicon composite material composed such that fine silicon primary crystals and/or silicon particles, intermetallic phases, and oxides form as hard particles during the production of the layers in the atmospheric thermal spraying method and/or are anchored in the structure. The surface of the coating can be machined economically by short-chipping using conventional tools, so that additional alloy elements such as copper for forming additional intermetallic phases such as Al2Cu can be eliminated. This is significant because conventional AlSi cylinder liners in reciprocating engines pose problems in conjunction with certain fuels because of their copper content.

Abstract: A metallic porous product is produced by applying a slurry of a mixture of skeleton constituent metal particles and property modifying particles to an inflammable porous foam, burning the inflammable porous foam having open pores by heat to provide a metallic skeleton structure, and sintering the metallic skeleton structure.

Abstract: A method of repairing a worn surface of a work piece especially but not exclusively a fin surface of a down hole stabilizer tool basically comprising placing an array of hard wearing trapezoids e.g. of tungsten on the surface to be repaired and occupying the space between the trapezoids by a filling applied by a relatively low temperature fusion welding process, preferably using a MAG welding technique. The welding temperature, for example less than 250.degree. C., can be well below the tempering temperature of the treated material e.g. steel, and this avoids harmful effects to the steel material. The worn surface can be dressed as a preliminary if necessary before the repair treatment proper. Additional layers are possible in the form of (a) matrix and (b) an initial buffer layer between the filling and the treated surface, the latter (b) again being applied by low temperature fusion welding but the former (a) can be applied by brazing.

Abstract: A pharmaceutical composition containing an extract from inflammatory tissue inoculated with vaccinia virus may be used to suppress the death of cells caused by endotoxin, and suppress excessive production of nitrogen monoxide induced by endotoxin. The extract may also be used to relieve hypotension induced by endotoxin. In sepsis and other serious bacterial infectious diseases, endotoxin (an intracellular toxin) is produced and a shock symptom is induced by its action. The extract, having an excellent inhibitory action toward endotoxin-induced toxicity, is quite useful for the treatment or the prevention of endotoxin-induced shock symptoms, sepsis and various symptoms accompanied thereby. In addition, the extract has an inhibitory action towards abnormal nitrogen monoxide production during the diseased state and, therefore, it is also useful as a therapeutic and preventive agent for diseases wherein an excessive nitrogen monoxide production occurs, such as acute hypotension.

Abstract: Composite nanoparticles comprising an elemental metal core surrounded by a metal-containing shell material are described wherein the particles have an average diameter of from about 5-500 nm; the core metal is preferably selected from the group consisting of the transition metals and especially Fe, Co and Ni, whereas the shell material is advantageously a metal such as an alkaline earth metal, or a metal salt such as a metal oxide or metal halide. The shell material is preferably more oxophilic than the elemental core material, enabling the core metal to remain purely metallic. These core/shell composite particles can be used to fabricate magnetizable recording media such as tapes and disks.

Abstract: A composite superconducting material made of coated particles of ceramic superconducting material and a metal matrix material. The metal matrix material fills the regions between the coated particles. The coating material is a material that is chemically nonreactive with the ceramic. Preferably, it is silver. The coating serves to chemically insulate the ceramic from the metal matrix material. The metal matrix material is a metal that is susceptible to the superconducting proximity effect. Preferably, it is a NbTi alloy. The metal matrix material is induced to become superconducting by the superconducting proximity effect when the temperature of the material goes below the critical temperature of the ceramic. The material has the improved mechanical properties of the metal matrix material. Preferably, the material consists of approximately 10% NbTi, 90% coated ceramic particles (by volume). Certain aspects of the material and method will depend upon the particular ceramic superconductor employed.

Abstract: A gamma titanium aluminide substrate is hardfaced by providing a hardfacing material with a titanium-aluminum, gamma-titanium aluminide alloy component having a composition of titanium and about 42 to about 49 atomic percent aluminum, and a nonmetallic powder, such as titanium diboride. This hardfacing material is preferably furnished as a hardfacing alloy source in the form of a hollow tube of metallic titanium tube material, and a filler powder within the hollow tube. The filler powder is a filler mixture of an aluminum-containing alloy powder comprising more than about 50 atomic percent aluminum, and the nonmetallic powder. The relative proportions of the titanium tube material and the aluminum-containing alloy powder are such that their net composition is a gamma phase titanium aluminide composition. The hardfacing material is applied to the substrate, as by a welding process.

Abstract: A flux cored wire for gas shielded arc welding with a mixed gas comprising argon and carbon dioxide which comprises:a seam-welded steel sheath; and a core filled in the steel sheath and comprising, all in weight percent:a slag and arc stabilizer comprising 4.0 to 6.0% TiO.sub.2, 0.2 to 0.8% SiO.sub.2, 0.4 to 0.8% ZrO.sub.2, 0.2 to 0.8% Al.sub.2 O.sub.3, 0.06 to 0.25% Na.sub.2 O+K.sub.2 O, and 0.1 to 0.4% metal fluoride;an alloying agent and metal deoxidizer comprising 0.03 to 0.06% C, 0.20 to 0.80% Si, 1.50 to 2.20% Mn, and 0.30 to 0.60% Mg; andnot less than 2% Fe;in which the difference between the percentages of iron or a combination of Na and K segregated in any two quartered cross section of the wire that are defined by equations (1) and (2) in the specification are not more than 10% and not more than 0.15%, respectively.

Abstract: In a process for applying a metallic adhesion layer for thermally sprayed ceramic thermal barrier coatings to metallic components, the surface which is to be coated being cleaned in a first process step, so that the metallic surface is free of grease and oxide, a binder is applied to the metallic surface of the base material in a second process step. Metallic adhesive powder is applied uniformly to the binder in a third process step and solder powder, which has a smaller particle size than the adhesive powder, is applied uniformly to the binder in a fourth process step. After drying the binder, a heat treatment is carried out for the purpose of soldering. The adhesion layers produced in this way are rough and provide a considerable positive lock for the ceramic thermal barrier coatings which are to be sprayed thereon.

Abstract: A material for electric contacts based on silver-tin oxide is obtained by mixing a powder of silver or an alloy mainly containing silver with a powder consisting mainly of tin oxide and 0.01 to 10 wt. % (in relation to the quantity of tin oxide) of an additive consisting of one or more compounds containing silver, oxygen and a metal from sub-groups II to VI of the periodic system and/or antimony, bismuth, germanium, indium and gallium, compacting the mixture and sintering it. The tin oxide may be replaced by zinc oxide.

Abstract: A method for joining a first metal surface to a second metal surface that includes providing powder metal particles substantially all of which have hardnesses lower than the hardnesses of the first and second metal surfaces, at normal temperatures; locating the particles in a layer between the first and second metallic surfaces, to form an assembly; heating the assembly to an elevated temperature or temperatures below the softening temperature of the first and second metallic surfaces; and effecting compression of the layer by and between the first and second surfaces at a pressure level or levels below the compressive yield strengths of the first and second surfaces, and above the compressive yield strengths of the particles, and for a time duration to effect a bond between the first and second metallic surfaces.

Abstract: A material for applying hardfacings to the teeth of steel tooth rolling cutter drill bits comprises a mixture of refractory metal carbide, such as tungsten carbide, cobalt and metallic matrix powders formed into a core structure and surrounded by a thin metallic sheath. The metallic matrix powders include iron, deoxidizers and alloy powders. The ratio by weight of the metallic matrix powders to the sheath exceeds 2.5, so that the core structure provides most of the matrix material for the hardfacing and only a small proportion of such material is provided by the thin sheath, which may have a thickness of only 0.001" to 0.010". The core structure may include an organic binder, such as methylcellulose, to provide strength and to prevent segregation of the core materials.

Abstract: A weld rod is prepared by placing a plurality of tungsten carbide/cobalt nuggets, preferably mixed with loose material, into a steel tube. The nuggets are previously sintered and have a generally ellipsoidal shape. A substrate is hard faced by progressively melting the weld rod onto the surface to be hard faced, and allowing the melted material to solidify on the surface.

Abstract: A braze material is provided for repairing an article, and particularly components formed from cobalt and nickel-base superalloys, such as gas turbine engine components. The braze material is composed of high melt particles distributed within a braze alloy. The braze alloy can be any suitable bonding material of the type used to repair components that must operate at high temperatures. The particles are single crystal, directionally solidified or equiaxed particles formed from a superalloy or ceramic material, or mixtures thereof. Importantly, the particles have an aspect ratio (length to width) of at least 4:1. The braze material can be provided and used in the form of a slurry, a presintered preform, a plasticized tape, or in a powdered form.

Abstract: The disclosure describes spindle-shaped magnetic iron-based alloy particles containing cobalt and iron as the main ingredients in which the Co content is 1.0 to 50.0 atm % (calculated as Co) based on the total Fe in the spindle-shaped magnetic iron-based alloy particles, and which the spindle-shaped magnetic iron-based alloy particles have an average major axis diameter of 0.05 to 0.18 .mu.m, a size distribution (standard deviation/major axis diameter) of not more than 0.25, an average minor axis diameter of 0.010 to 0.020 .mu.m, an aspect ratio (major axis diameter/minor axis diameter) of 4 to 15, an X-ray crystallite size D.sub.110 of 120 to 180 .ANG., a coercive force of 1720 to 2500 Oe, a saturation magnetization of not less than 110 emu/g, and a saturation magnetization decrement percentage of not more than 17%.

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 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: Structure and a method for producing very dense bodies from particulate materials. An electrically conductive drive member is positioned adjacent the particulate material. A significant magnitude of electrical current is caused to flow through the electrically conductive drive member. A magnetic field is established and large magnitudes of magnetic pressure are created, and pressure directly from or indirectly from the magnetic pressure is applied upon the particulate material, and the particulate material is compressed and compacted. In one embodiment of the invention electrical current creates a magnetic field which is applied to an electrically conductive pressure member which moves and applies compaction pressure upon the particulate material. Electromagnetic pressure in accordance with this invention may be applied to a compacted body of particulate material, and the compressibility and density of the body of particulate material is increased.

Abstract: There is disclosed a magnetoresistance effect element including a multilayer constituted by a magnetic layers in which fine magnetic metal particles of crystalline or amorphous containing at least one element of Fe, Co, and Ni are dispersed in a matrix containing at least one element selected from the group consisting of noble metals and Cu, and non-magnetic layers containing a noble metal.

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: Non-uniform heterogeneous powder particles for electrochemical uses, and said powder particles comprising at least two separate and distinct hydrogen storage alloys selected from the group consisting of: Ovonic LaNi.sub.5 type alloys, Ovonic TiNi type alloys, and Ovonic MgNi based alloys.

Abstract: The present invention provides multiple grade, composite cemented carbide articles and a method of making such articles. The cemented carbide articles comprise carbides of different grades (or different compositions and/or microstructures) and, therefore, correspondingly different properties at different locations in the same article. The method of the present invention comprises filling different areas or portions of a die with metallurgical powders having different compositions and/or microstructures. The powder is then compressed as a single compact in the die cavity. The compressed compact is subsequently sintered to produce a multigrade cemented carbide article having composition and/or microstructural variations within the volume of the article.

Abstract: Methods for making, methods for using and articles comprising ferromagnetic cermets, preferably cemented carbides and more preferably tungsten carbide, having at least two regions exhibiting at least one property that differs are discussed. The multiple-region cermets are particularly useful in wear applications. The cermets are manufactured by juxtaposing and densifying at least two powder blends having different properties (e.g., differential carbide grain size or differential carbide chemistry or differential binder content or differential binder chemistry or differential magnetic saturation or any combination of the preceding). Preferably, a first region of the cermet comprises a first hard component having a prescribed binder content and a first magnetic saturation and a second region, juxtaposing or adjoining the first region, comprising a second binder content different than the binder content of the first region and a second magnetic saturation different than that of the first region.

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 metal-based composite includes a metal matrix including aluminum as a major component, discontinuous alumina fibers buried in the metal matrix, mullite particles buried therein, and solid lubricant particles buried therein. The solid lubricant particles can be either graphite particles with a nickel layer formed on a surface thereof, or boron nitride cermet particles. By thus including the specific solid lubricant particles, the wear resistance of the metal-based composite can be improved, the wear of its mating parts can be reduced, and the friction coefficient between the metal-based composite and the mating parts can be inhibited from fluctuating. Hence, the metal-based composite can appropriately make aluminum-based internal combustion engines.

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: 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 oxidation resistant carbon material including a composite material is provided. The composite material is obtained by impregnating a carbon material with a boron oxide and/or a hydrate compound thereof, and baking such carbon material under pressure by inert gas at a temperature of not lower than 1500.degree. C.

Abstract: A single layer film is deposited onto a substrate at room temperature from two sources, one source being a magnetic material, the other being a non-magnetic or weakly-magnetic material. The film is annealed for predetermined time in order to induce phase separation between the magnetic clusters and the non-magnetic matrix, and to form stable clusters of a size such that each magnetic particle, or cluster, comprises a single domain and has no dimensions greater than the mean free path within the particle.

Abstract: A solder preform (250) has solder particles of one alloy (210) arranged within a matrix of a second solder alloy (200). This arrangement forms a structure having the desired predetermined shape of the solder preform. The solder particles comprise one or more of the following elements: tin, lead, bismuth, indium, copper, antimony, cadmium, arsenic, aluminum, gallium, gold, silver. The particles have a predetermined melting temperature. The second solder alloy is compositionally distinct from the solder particles, and has a melting temperature that is lower than the melting temperature of the solder particles. The solder particles may comprise about 88% by weight of the solder preform, and the second solder alloy comprises about 12% by weight of the preform.

Abstract: A consumable brazing encapsulate is used for joining aluminum to metal surfaces, e.g. aluminum, copper, brass or steel surfaces, by brazing. The encapsulate comprises a mixture of particles of an eutectic forming metal selected from the group consisting of silicon, germanium, copper and zinc and particles of a brazing flux encapsulated in a layer or layers of aluminum or its alloys, said eutectic forming metal and flux being present in the following parts by weight per 100 parts by weight of the total aluminum in the encapsulate: (a) 7 to 15 parts of silicon and 7 to 45 parts of flux; (b) 25 to 120 parts of germanium and 100 to 250 parts of flux; (c) 40 to 70 parts of copper and 20 to 100 parts of flux; (d) 1300 to 2400 parts of zinc and 1000 to 2000 parts of flux; such that when the encapsulate is placed between aluminum surfaces to be joined and is heated, the eutectic forming metal and the encapsulating aluminum are totally converted in situ into an eutectic filler metal for joining the aluminum surfaces.

Abstract: A solder-clad printed circuit board (100) has solder particles of one alloy (120) arranged within a matrix of a second solder alloy (115). This arrangement forms a flat structure that is alloyed to the solder pads (105) on the substrate. The solder particles (120) have a predetermined melting temperature and are made from one or more of the following elements: tin, lead, bismuth, indium, copper, antimony, cadmium, arsenic, aluminum, gallium, gold, silver. The second solder alloy (115) is compositionally distinct from the solder particles, and has a melting temperature that is lower than the melting temperature of the solder particles. The solder particles may comprise about 88% by weight, and the second solder alloy may comprise about 12% by weight of the solder cladding.

Abstract: The present invention addresses problems in the diamond saw blade and segment art. One aspect of the invention comprises a method for making handleable, strong, discrete, metal-clad abrasive pellets. This method comprises the steps of:(a) spraying onto a bed of gas-fluidized abrasive particles a slurry of metallic powder, a binding agent, and a volatile solvent until substantially all the abrasive particles are coated with at least about 20 wt-% of the metallic powder;(b) recovering the metal powder coated abrasive particles; and(c) heating said recovered coated particles under conditions to form a sintered continuous metal coating enveloping said abrasive particles. The resulting sintered metal-clad pellets form another aspect of the invention.

Abstract: An article coated with a thermal barrier coating system for high temperature use, has its thermal cyclic spallation life improved by the application of an aluminide to the outer portion of a bonding coating disposed on a substrate. The bond coating has a surface roughness in the range of about 200-600 microinches Ra prior to application of covering thermal barrier coating.

Abstract: A metallic regenerator seal is provided having multi-layer coating comprising a NiCrAlY bond layer, a yttria stabilized zirconia (YSZ) intermediate layer, and a ceramic high temperature solid lubricant surface layer comprising zinc oxide, calcium fluoride, and tin oxide. Because of the YSZ intermediate layer, the coating is thermodynamically stable and resists swelling at high temperatures.

Abstract: An article having a slip-resistant surface and method of producing the same includes metallurgically bonding raised bead-like configurations of a compatible material at select locations on the article surface. The method includes injecting, substantially simultaneously with projecting a high power radiant energy beam, powder particles into a portion of the beam lying a distance away from the point of impingement on the surface portion of the article. The particles interact with the beam for a time period sufficient to cause at least partial melting of a substantial number of particles which are then transported to a selected point on the surface portion. The partially melted particles, along with completely and/or any substantially unmelted particles, are allowed to bond with the surface material thereby forming a raised configuration thereon. The process is repeated for forming another raised configuration at another selected location on the surface portion for thereby forming a slip-resistant article.

Abstract: An extruder housing is formed for a double-worm or double-screw extruder by providing a steel body with a seamless one-piece structure and hot-isostatically pressing the body and the powder-metallurgical wear-resistant material lining the preferably conical bores of the housing to form a wear-resistant layer which is bonded to the steel body by a diffusion layer.

Abstract: The invention provides composites made from a carbon-based material and a meallic material by joining them together by means of a brazing filler metal which is an alloy comprising, as essential components thereof, at least one element selected from among vanadium, niobium, titanium, zirconium and silicon and at least one element selected from among copper, silver, nickel and aluminum as well as welding nozzles made by joining a ring made of a carbon-based material to the tip of a metal nozzle using said brazing filler metal.

Abstract: An iron base wear-resistant surfacing alloy characterized by the absence of cobalt. The alloy is in the form of a hollow ductile wire having a powdered metal core. The wire comprises a mild steel, and the composition of the wire and core, taken together, consists essentially of, by weight, from about 3% to about 5% boron; up to about 10% chromium; from about 27% to 43% nickel; from about 0.1% to about 5% silicon; from about 0.2% to about 1.5% carbon; from about 0.1% to about 2 % manganese; with iron comprising the balance and in amounts greater than 43%.

Abstract: A novel self-brazing aluminum laminated structure is described, as well as a method of making the laminated structure and a brazed product produced therefrom. The laminated structure consists of a thin layer of a powder mixture consisting of eutectic-forming metal powder and a flux powder sandwiched between an aluminum alloy sheet and an aluminum foil. The laminate is fabricated by roll bonding to provide adequate adhesion of the foil to the underlying sheet through and around the powder layer. This can be done by arranging the powder layer into clusters of powder with spaces therebetween so that roll bonding between the foil and the aluminum alloy substrate takes place by way of direct metal contact between the clusters. These clusters may be created by the method of applying the powder, e.g. silk screen, or by providing depressions in the surface of the substrate by a process of roughening or of embossing within which clusters of the powder are located.

Abstract: Wire of co-drawn composite of conductor core and matrix is provided, for instance in the form of high purity aluminum conductor and Al-Fe-Ce alloy matrix, suitable for use for electrical conduction at cryogenic temperatures. Included are extrusion and drawing processes enabling successful production.

Abstract: A method of forming a phase-separated composite material which utilizes sputtering in a thermal gradient at relatively high sputtering pressures generally above about 0.1 Torr sufficient to produce nanoscale particles which are embedded in a continuous phase matrix produced by normal sputtering. This method avoids the alloying and/or compound formation which prevents preparation of phase-separated composites by conventional co-sputtering, and the invention thus enables particulate composites to be formed from entirely new classes of materials. Microhardness testing shows that the phase-separated composites produced by the present invention have an increased hardness compared to the pure matrix material.

Abstract: A process for manufacturing a metallic powder molded article comprising the steps of preparing a mixture of inflammable metallic powders and synthetic resin and molding under pressure and heat the mixture to form a molded body. Pressure and heat are applied such as by buffing onto a surface of the molded body to deform and bond together the metallic powders on the molded body surface to form a substantially continuous metallic surface. A plated layer may be applied on the continuous metallic surface. The process manufactures a metallic powder molded article comprising a molded body of a mixture of inflammable metallic powders and synthetic resin having a substantially continuous metallic surface defined by the metallic powders compacted and bonded together.

Abstract: A billet is provided for subsequent heating and working into a finished product in, for example, a rolling mill. The billet comprises a mass of swarf jacketed in a tubular jacket. At least one end of the jacket is joined to an end piece which surrounds the end of the mass of swarf. The end piece and the jacket are materials of different composition. In particular, a jacket of stainless steel with mild steel end pieces at each end is envisaged. The end pieces may be open ended sleeves or caps. Where an open ended sleeve is used it may be closed by crimping its end or by the provision of an insert which is welded or crimped into the sleeve. The end of the swarf exposed in the sleeve may also be sealed by application of a graphite paste.

Abstract: A method of making a disc-shaped or plate-shaped sintered body from powdered material of poor ductility, such as Sendust alloy, wherein the powdered material is filled in a dish-like metallic vessel having a thick bottom wall and a low side wall, a plurality of such filled vessels are piled up and put in a cylindrical capsule made of hot-workable metal, the capsule is charged in a container of a hot extrusion press whose outlet is closed and it is then heated and compressed. The resultant compressed product is taken out and cooled and metallic parts resulted from the vessels and capsule are removed from the compressed product, thereby obtaining plate-shaped sintered bodies as wanted.

Abstract: A microstructurally toughened ceramic-particle-reinforced metal-matrix composite article is disclosed. The article exhibits a complex microstructure. The article exhibits high tensile strength, high elastic modulus and high impact resistance. A process for making the article is also disclosed. The process includes positioning structural elments within a metallic container to define one or more void spaces within the container, introducing a quantity of metallic particles or of a particulate mixture of metallic particles and ceramic particles into the void spaces, and consolidating the container, structural elements and particles to form the microstructurally toughened composite article.