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| Number | Title | Issue Date |
| 5338618 | Electric contact material and electric contact using said material An electric contact material containing Li oxide of 0.01 to 2.0% by weight when represented in terms of the amount of Li, oxide of at least one rare earth element of 0.05 to 0.18% by weight when represented in terms of the amount of the rare earth element... | 08/16/1994 |
| 5337872 | Synchronizer ring A synchronizer ring for performing synchronous sliding operation with and separating operation from a rotating object member, comprises a ring body having a sliding surface slidable in contact with the object member and a copper alloy flame-coated film fo... | 08/16/1994 |
| 5334809 | Particle enhanced joining of metal surfaces A temporary electrical junction includes a first electrical contact having a first metal surface; a second electrical contact having a second metal surface; and a plurality of particulate cores having a hardness greater than that of the first and second m... | 08/02/1994 |
| 5328776 | Abrasion and impact resistant composite castings and wear resistant surface provided therewith A composite casting for wear resistant surface has a base composed of a ductile material and a plurality of wear resistant elements embedded in the base, wherein the wear resistant elements have rounded sides and are arranged in the base so that they are ... | 07/12/1994 |
| 5320911 | Clad structural member with NBTIALCR alloy cladding and niobium base metal core Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based cladding alloy are provided. The cladding is preferably an alloy having a niobium and titanium base accord... | 06/14/1994 |
| 5318859 | Clad structural member with NbTiAl alloy cladding and niobium base metal core Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based cladding alloy are provided. The cladding is preferably an alloy having a niobium and titanium base accord... | 06/07/1994 |
| 5316865 | Composite structure with NbTiAl low Hf alloy matrix and niobium base metal reinforcement Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based alloy are provided. The matrix is preferably an alloy having a niobium and titanium base according to the ... | 05/31/1994 |
| 5312695 | Reinforced multilayer filament reinforced ring structure A method for forming a ring structure having a high volume fraction of a filament reinforcement within a metal matrix is disclosed. The ring structure is formed by consolidating a set of nested rings each of which has a high volume fraction of the filamen... | 05/17/1994 |
| 5306570 | Clad structural member with NbTiAl high Hf alloy cladding and niobium base metal core Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based cladding alloy are provided. The cladding is preferably an alloy having a niobium and titanium base accord... | 04/26/1994 |
| 5306571 | Metal-matrix-composite An improved PWB thermal plane assembly having a low CTE and high thermal conductivity comprising a first and second outer layer of aluminum, at least one intermediate layer comprising a metal matrix reinforced with graphite fibers and a layer of aluminum ... | 04/26/1994 |
| 5304427 | Composite structure with NBTIA1CRHF alloy matrix and niobium base metal reinforcement Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based alloy are provided. The matrix is preferably an alloy having a niobium and titanium base according to the ... | 04/19/1994 |
| 5299724 | Apparatus and process for casting metal matrix composite materials A composite material mixture of free flowing reinforcement particles in a molten metal is solidified at a cooling rate greater than about 15° C. per second between the liquidus and solidus temperatures of the matrix alloy. This high cooling rate imparts ... | 04/05/1994 |
| 5298323 | Bearing steel and rolling bearing made thereof A long-life bearing steel and a long-life rolling bearing made of the steel are disclosed. In the steel, the number of oxide or oxide-based inclusion particles in a given unit area A of 160 mm3 with an average particle size of 3 to 30 μm is 80... | 03/29/1994 |
| 5298339 | Aluminum metal matrix composites The present invention relates to novel ceramic-filled metal matrix composites and methods for making the same. Particularly, a permeable mass of filler material is spontaneously infiltrated by, for example, an aluminum alloy, in the presence of nitrogen-c... | 03/29/1994 |
| 5296310 | High conductivity hydrid material for thermal management A hybrid structural material combines high thermal conductivity and pre-determined mechanical properties compatible with adjacent or attached materials. It has three elements: (1) a non-structural, high thermal conductivity core material which defines the... | 03/22/1994 |
| 5296309 | Composite structure with NbTiAlCr alloy matrix and niobium base metal reinforcement Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based alloy are provided. The matrix is preferably an alloy having a niobium and titanium base according to the ... | 03/22/1994 |
| 5286577 | Drawn conductors for cryogenic applications 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 dra... | 02/15/1994 |
| 5279902 | Air hardening steel An air hardened steel having a reduced nickel content and acceptable impact hardness. The air hardened steel may include 0.18-0.35 w/o carbon, 1.3-1.75 w/o silicon, 1.3-2.0 w/o manganese, 0.65-2.1 w/o chromium, 0.9-2.0 w/o nickel and 0.2-0.35 w/o molybden... | 01/18/1994 |
| 5277989 | Metal matrix composite which utilizes a barrier A net shaped ceramic-reinforced aluminum matrix composite is formed by forming a permeable mass of ceramic material with a defined surface boundary having a barrier, and contacting a molten aluminum-magnesium alloy with the permeable mass of ceramic mater... | 01/11/1994 |
| 5277990 | Composite structure with NbTiAl and high Hf alloy matrix and niobium base metal reinforcement Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based alloy are provided. The matrix is preferably an alloy having a niobium and titanium base according to the ... | 01/11/1994 |
| 5273569 | Magnesium based metal matrix composites produced from rapidly solidified alloys A composite has a magnesium base metal matrix and a reinforcing phase. The composite is produced from a charge containing a rapidly solidified magnesium base alloy and particles of a reinforcing material present in an amount ranging from about 0.1 to 50 p... | 12/28/1993 |
| 5273831 | Clad structural member with NbTiAlCr HF alloy cladding and niobium base metal core Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based cladding alloy are provided. The cladding is preferably an alloy having a niobium and titanium base accord... | 12/28/1993 |
| 5270122 | Composite structure with NbTiAl alloy matrix and niobium base metal reinforcement Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based alloy are provided. The matrix is preferably an alloy having a niobium and titanium base according to the ... | 12/14/1993 |
| 5268043 | Magnetic sensor wire There is provided a magnetic device having first and second portions with different magnetic coercivities. A magnetic field is induced in both the first and second portion. When exposed to a sufficiently high external magnetic field, the polarity of the f... | 12/07/1993 |
| 5264295 | Combined body of ceramics and metal The invention provides an improved combined body of ceramics and metal which maintains high anti-torsional strength and anti-slip off strength while stress concentration is relaxed and deterioration of the ceramics is well prevented. The combined body inc... | 11/23/1993 |
| 5264293 | Composite structure with NbTiHf alloy matrix and niobium base metal Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based alloy are provided. The matrix is preferably an alloy having a niobium and titanium base according to the ... | 11/23/1993 |
| 5260141 | Diamond coated products A method is provided for preparing a diamond coating on a substrate. The method includes a first step of applying a partial diamond coating having an effective amount of void area therein to the work surface of a substrate. In a follow-up step the void ar... | 11/09/1993 |
| 5260137 | Infiltrated fiber-reinforced metallic and intermetallic alloy matrix composites Reinforced metallic or intermetallic alloy matrix composite materials which are reinforced by the incorporation of preferably small-diameter ceramic fibers infiltrated within a metal bonding layer. The bonding layer comprises a foil, such as copper, which... | 11/09/1993 |
| 5252147 | Modification of surface properties of copper-refractory metal alloys The surface properties of copper-refractory metal (CU-RF) alloy bodies are modified by heat treatments which cause the refractory metal to form a coating on the exterior surfaces of the alloy body. The alloys have a copper matrix with particles or dendrit... | 10/12/1993 |
| 5246056 | Multi carbide alloy for bimetallic cylinders The present invention relates to alloys having substantially uniform aggregate distribution, a method of making such alloys, and centrifugally cast members made from such alloys. The alloys of the present invention utilize aggregates of tungsten carbide, ... | 09/21/1993 |
| 5244747 | Thermoplastic core and method of using Thermoplastic cores reinforced with strong magnetic shots or/and particles are molded and then thermosets are molded around this thermoplastic core. The thermoplastic core is decored by a magnet at a high temperature above the softening point of thermopla... | 09/14/1993 |
| 5244748 | Metal matrix coated fiber composites and the methods of manufacturing such composites A fiber coating which allows ceramic or metal fibers to be wetted by molten metals is disclosed. The coating inhibits degradation of the physical properties caused by chemical reaction between the fiber and the coating itself or between the fiber and the ... | 09/14/1993 |
| 5240495 | In situ formation of metal-ceramic oxide microstructures In situ formation of metal-ceramic oxide microstructures is carried out on a starting oxide phase containing at least a most noble metallic component (e.g., iron) and a least noble metallic component (e.g. manganese) and subjecting the starting oxide phas... | 08/31/1993 |
| 5232525 | Post-consolidation method for increasing the fracture resistance of titanium composites A method to increase the fracture resistance of titanium alloy matrix composites which comprises thermally treating a composite at a temperature about 5 to 10% above the beta-transus temperature of the alloy for about 4 to 60 minutes.... | 08/03/1993 |
| 5231269 | Electromagnetic wave energy conversion heat-generating material, heating container for microwave oven, and microwave oven An electromagnetic wave energy conversion heat-generating material comprising zinc oxide whisker used as a heat-generating material. A heating container for an electronic oven, comprising the zinc oxide whiskers, and a microwave oven provided with a heat ... | 07/27/1993 |
| 5227249 | Boride coatings for SiC reinforced Ti composites The subject invention relates to a coated reinforcement material comprising a SiC reinforcement having an outer core coating of the general formula: Tix My Bz wherein M is at least one of V, Nb, Ta, Cr, Mo, W, Zr, and Hf; x is betwe... | 07/13/1993 |
| 5223052 | Method of treating surfaces of rotors of the screw type rotary machine A method treating a surface of rotors in a screw-type rotary fluid machine, with the method comprising the steps of: conducting a non-electrolytic Ni plating on the surface of each rotor so as to form a first layer of non-electrolytic Ni plating layer; he... | 06/29/1993 |
| 5224030 | Semiconductor cooling apparatus Gas derived graphite fibers generated by the decomposition of an organic gas are joined with a suitable binder. This produces a high thermal conductivity composite material which passively conducts heat from a source, such as a semiconductor, to a heat si... | 06/29/1993 |
| 5223347 | Creep resistant composite alloys A fabrication method of strengthening metallic alloys by composite technology has been developed by mixing steel shots or aggregates with conventional alloys, thus preventing cold flow or creep. Preventing creep is advantageous in thermal plugs which must... | 06/29/1993 |
| 5217816 | Metal-ceramic composites A method is taught for the in-situ precipitation of ceramic materials in a metal matrix. By means of the solvent assisted reaction, metal-ceramic composites having highly superior properties may be obtained. The invention involves the reaction of the cera... | 06/08/1993 |
