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WO/1998/006119A1 |
The invention concerns a method of producing a product from a silver-based contact material. According to this method, first, a powder mixture of silver and iron is formed in which the iron is used in the form of a powder having a mean g...
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WO/1998/005801A1 |
The invention relates to ZrB�2?/Cu composites, and more specifically to methods of making ZrB�2?/Cu composite electrodes and methods of using ZrB�2?/Cu composite electrodes. ZrB�2? powder is contacted with a polymer and shaped to...
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WO/1998/005802A1 |
A hard sintered alloy having not only a wear resistance, a high corrosion resistance and a heat resistance but also a sufficiently high strength and a high tenacity in a wide temperature region from normal temperature to a high temperatu...
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WO/1998/002266A1 |
The invention relates to bullets having increased frangilibity (or which can be easily fragmented) and to materials and processes for the manufacture of such bullets. The bullets of the present invention are typically made from copper or...
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WO/1998/000259A1 |
A method of extruding a boron carbide-aluminum alloy metal matrix composite includes heating the ingots of the composite to temperatures of about 570 �C, holding the ingots at about 570 �C to soften the ingots, placing the ingots in ...
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WO/1998/000258A1 |
A neutron shield is formed of a boron carbide-metal matrix composite having a density ranging from 2.5 to 2.8 g/cm?3� and a composition ranging from approximately 10 to 60 weight % of boron carbide and 40 to 90 weight % of metal matrix...
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WO/1998/000572A1 |
A rigid disk substrate for a magnetic recording disk is formed of a ceramic-metal matrix composite. A metal-cladding may be included around the ceramic-metal matrix composite to form a sandwich structure. The ceramic-metal matrix composi...
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WO/1998/000462A1 |
The present invention is related to a family of materials that may act as a replacement for lead in applications where the high density of lead is important, but where the toxicity of lead is undesirable. The present invention more parti...
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WO/1997/046737A1 |
The invention relates to a laminated material for sliding members which is improved with respect to its resistance to abrasion, its hardness and its wear resistance. Said laminated material has a support structure and a sliding layer wit...
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WO/1997/043228A1 |
A composite ceramic-metal material has an Al2O3 matrix interpenetrated by a network of a ductile metal phase with a higher melting temperature than aluminium and which makes up 15 to 80 vol. % of its total volume. The Al2O3 matrix forms ...
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WO/1997/038426A1 |
The present invention provides a bonded isotropic magnet containing a composition comprising from about 5 to 25 % rare earth metal, from about 0.5 to about 4.5 % boron, from about 0.5 to about 3.0 % niobium, and the balance principally o...
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WO/1997/030808A1 |
The invention concerns a material for the powder-metallurgical production from a powder mixture containing at least approximately 50 wt.% copper in particular of valve seat rings or valve guides with high resistance to wear and corrosion...
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WO/1997/019774A1 |
Metal-matrix composites and methods for producing these composites are provided. The manufacturing methods include providing a ceramic preform having a uniform distribution of ceramic particles sintered to one another. The particles incl...
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WO/1997/019775A1 |
Metal matrix composites, and methods for their production, are provided. In the subject method, a reinforcing phase is combined with an aqueous medium comprising a binder to produce a slurry. The slurry is then dried to produce a preform...
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WO/1997/013600A1 |
An improved metal matrix composite utilizes boron carbide as a ceramic additive to a base material metal. The base material metal is aluminum, magnesium, or titanium, or an alloy thereof, provided in powder form with the balance of the m...
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WO/1997/010624A1 |
A self-tuning material which is used for a patch antenna, waveguide, etc., and efficiently radiates radio waves despite of its simple structure and small size. The material is manufactured by mixing metallic chips composed of two or more...
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WO/1997/005980A1 |
A self-lubricating sintered sliding material exhibiting extremely superior anti-seizure properties and wear-resistance properties even under an uneven or high load and a method for manufacturing the same material. The self-lubricating si...
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WO/1997/003776A1 |
Composite powders useful for thermal spray coatings or for powder metallurgy parts are provided. The spherical powder particles are characterized by the presence of a fully alloyed metallic phase and a second non-metallic phase uniformly...
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WO/1997/003775A1 |
A method of producing a silicon based alloy is described which comprises melting a silicon alloy containing greater than 50 wt.% silicon and preferably including aluminium. The melted alloy is then inert gas atomized to produce powder or...
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WO/1997/004020A1 |
The invention concerns a composition containing 35 to 99 % by wt. of a diamagnetic and/or antiferromagnetic metal-containing compound and 1 to 65 % by wt. of a polymer of the formula (I) HO-{-CO-R1-CO-X-Y-Z-}n-H- in which R1 is phenyl, n...
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WO/1996/034991A1 |
This invention relates to an aluminium powder blend which can be used for the manufacture of sintered components. The powder is based on the precipitation hardenable 7000 series Al-Zn-Mg-Cu alloys with trace additions of lead or tin. The...
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WO/1996/033057A1 |
The aim of the invention is to provide a method of producing mouldings in which the properties of the mouldings can be influenced, as required, by the selection of the raw materials (1, 2) or raw-material compositions used as well as by ...
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WO/1996/030144A1 |
The invention concerns a soft magnetic, anisotropic composite material essentially consisting of compacted, essentially flaky shaped, electrically insulated particles of essentially pure iron powder containing less than 0.01 % by weight ...
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WO/1996/030550A1 |
Two methods of producing a ceramic reinforced Al-alloy metal-matrix composite are described. The first one comprises the steps of dispersing a ceramic phase (of titanium diboride) in a liquid aluminium or aluminium alloy, mixing the cera...
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WO/1996/026298A1 |
In a method of powder metallurgical manufacturing of a composite material containing particles in a metal matrix, said composite material having a high wear resistance in combination with a high toughness, the powder particles (I) of a f...
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WO/1996/026371A2 |
The invention relates to a material which comprises a metal matrix composite reinforced with an appropriate amount and type of reinforcement. The matrix metal can be any metal which is capable of desirably interacting with the reinforcem...
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WO/1996/022402A1 |
Molybdenum alloys are provided with enhanced oxidation resistance. The alloys are prepared by the addition of silicon and boron in amounts defined by the area of a ternary system phase diagram bounded by the points Mo-1.0 % Si-0.5 % B, M...
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WO/1996/021746A1 |
The tool comprises at least one cutting edge formed by a compacted mixture of carbide containing alloy steel and an oxide containing ceramic material, preferably zirconium oxide in an amount 0.01-15 wt.% of the mixture, preferably in the...
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WO/1996/018748A2 |
A hard drive disk substrate is formed of a multi-phase ceramic-based material having at least two phases with amorphous phases being present in an amount less than 1 volume percent based on the volume of the ceramic-based material or at ...
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WO/1996/018749A2 |
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 ...
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WO/1996/005151A1 |
A composite material containing a dispersion in a matrix made of ceramic, metal, polymer, and so forth, which can fully exploit characteristic properties of both the dispersion and matrix without lowering the mechanical characteristics. ...
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WO/1996/002345A1 |
The present invention concerns a method, according to which powder compositions of iron-based particles are admixed with a thermoplastic material and a lubricant. The obtained mixture is compacted at a temperature below the glass-transit...
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WO/1995/032314A1 |
A nickel-aluminium intermetallic basis alloy has a structure mainly made of the binary phase NiAl and further contains the elements chromium and tantalum. The total proportion of the elements chromium and tantalum amounts to maximum 12 %...
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WO/1995/030029A1 |
A self-lubricating composite material excellent in strength and high-temperature oxidation resistance and usable in the air and in vacuo. It is a composite Cu-Ni-Sn sinter containing 20-70 vol. % of a mixture of graphite particles and WS...
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WO/1995/028505A1 |
A slide member made of a sintered aluminum alloy includes a matrix (1) of an aluminum alloy and an aluminum nitride film (2) dispersed along the powder boundary of this matrix. When a state in which the aluminum nitride film (2) encompas...
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WO/1995/027859A1 |
This invention relates to metal and metal matrix composite materials that are useful as, for example, brake rotors, clutch plates and other similar uses which benefit from material properties of the invention. In the case of metal matrix...
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WO/1995/025078A1 |
A method to at least partially impregnate a porous ceramic body with a metal comprising positioning a sacrificial porous ceramic transport means in physical contact with the metal and between the porous ceramic body to be impregnated and...
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WO/1995/025183A1 |
Controllable oxidation of certain titanium zirconium alloys is achieved by utilizing minor proportions of niobium, tantalum or vanadium or mixtures thereof, and articles formed therefrom can be partially oxidized to form a deep, hard mon...
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WO/1995/024511A1 |
A Ti-Al intermetallic compound alloy material which is superior in strength at high temperatures and ductility and a method for producing the same comprising the steps of dispersing fine alumina (Al2O3) at an O2 concentration of 1000-500...
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WO/1995/021452A1 |
A permanent magnet is provided which is comprised of, by atomic percent: 10-24 % R; 2-28 % boron, 0.1-18.12 % hydrogen; and balance being M. R is at least one element selected from La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, ...
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WO/1995/019509A1 |
An axle or wheel brake disk for rail vehicles is designed as a monobloc disk or as a disk formed by a hub (2) or segments and by a friction ring (1), preferably provided with inner ventilation and having hard ceramic particles distribute...
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WO/1995/018877A2 |
The invention relates to a sintered friction material for the production of friction-linked components, in particular synchronising rings, and a friction-linked component, especially a synchronising ring, with such a sintered friction ma...
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WO/1995/013406A1 |
Methods are disclosed to render a wide range of titanium alloys superplastic at temperatures so low that oxidation is not a problem. Alpha beta alloys are vapor deposited to a particular microstructure which is superplastic. Alpha alloys...
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WO/1995/008653A1 |
A composite lead-free bullet is disclosed comprising a heavy constituent selected from the group of tungsten, tungsten carbide, carballoy, and ferro-tungsten and a second binder constituent consisting of either a metal alloy or a plastic...
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WO/1995/008070A1 |
This invention relates to metal and ceramic matrix composite brake rotors comprising an interconnected matrix embedding at least one filler material. In the case of metal matrix composite materials, the at least one filler material compr...
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WO/1995/005492A1 |
This invention discloses a steel containing up to 1.2 wt % of C, 0.01 to 0.10 wt % of Al, up to 0.0050 wt % of O and Mg in an amount satisfying the relation (1): total oxygen wt % x 0.5 total Mg wt % < total oxygen wt % x 0.7, wherein th...
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WO/1995/005491A1 |
A dispersion strengthened copper alloy and a method for producing the alloy are provided. The alloy preferably comprises aluminum, titanium and hafnium as alloying elements that are internally oxidized under controlled conditions to prod...
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WO/1995/002024A1 |
The invention is directed to a plasma sprayable powder for coating surfaces such as cylinder bores of an internal combustion engine, comprising grain size agglomerates of (i) a plurality of solid lubricant particles (15a, 15b, 15c, 15d, ...
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WO/1994/027833A1 |
An abrasive material is formed by coating a substrate (10) with an adhesive (11) contacting the substrate with a quantity of hard, abrasive particles (12) then removing all particles not held by the adhesive. The remaining particles are ...
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WO/1994/024511A1 |
Low toxicity shot or pellets for shotgun cartridges or the like comprises finely divided metallic particles, preferably a mixture of finely divided molybdenum and tungsten particles, in a polymer matrix. The resulting pellets have a high...
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