[특허]Method for clad-coating refractory and transition metals and ceramic particles

[미국특허] Method for clad-coating refractory and transition metals and ceramic particles 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B21B-001/46 B22F-001/00
출원번호	US-0468250 (1990-01-22)
발명자 / 주소	Quick Nathaniel R. (44 Center Grove Rd. H15 Randolph NJ 07869) Kenney James C. (5846 Carvel Ave. Indianapolis IN 46220)
인용정보	피인용 횟수 : 23 인용 특허 : 0

초록 ▼

Metal and ceramic particles of various morphologies are clad with a coating from the transition metal group consisting of silver, gold, copper, nickel, iron, cobalt, aluminum etc., or combinations thereof, to provide improved coated particles for microelectronics or metal matrix composites or other uses. Refractory metal precursor core particles, such as tungsten, molybdenum, niobium and zirconium, as examples, are provided from a composite of tungsten and copper, for example, made by pressurizing and infiltrating or liquid phase sintering of molten copper into a porous tungsten skeleton. Precursor chip particles derived from a tungsten impregnated billet are used as starter particles which may be further enhanced by cogrinding in an attritor ball mill with smaller copper particles to thereby produce an enhanced copper clad-coating of tungsten particles with predetermined percent by weight of copper and tungsten content. The resulting particles exhibit improved electrical and thermal expansion coefficient matching properties for use on microelectronic ceramic substrates and when used for metal matrix composition, provides more uniform distribution of the dispersed strengthening particulate phase in the matrix. In another embodiment, ceramic particles are clad-coated with selected metals so that they can be used in ceramic-metal matrices, thereby producing systems wherein the components are uniformily didpersed throughout the system.

대표청구항 ▼

An improved method of making micron size particles clad-coated with metal, said improvement comprising the steps of: a. forming a sponge-like skeletal body of consolidated-core metal particles, to thereby form voids within said body; b. infiltrating said voids of said skeletal body with a molten metal or metal alloys by means of pressure and liquid phase sintering or pressure and infiltration, to thereby form a billet of consolidated particles impregnated with said metal or metal alloy; c. reducing said billet to fine chips by machine turning or milling; and d. further reducing said fine chips to micron size particles by means of attritor, ball or horizontal bead milling.

이 특허를 인용한 특허 (23) 인용/피인용 타임라인 분석

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Zuberi, Bilal; Lachenauer, Robert G., Catalytic exhaust device for simplified installation or replacement.
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Zuberi, Bilal, Catalytic exhaust filter device.
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Zuberi, Bilal; Lachenauer, Robert G., Catalytic fibrous exhaust system and method for catalyzing an exhaust gas.
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Alward, Gordon S.; DiChiara, Jr., Robert A., Ceramic exhaust filter.
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Lunk, Hans-Joachim; Morgan, Ricky D.; Stevens, Henry J.; Benjamin, Dale E.; Dang, Tuan A.; Frisk, Timothy A., Ceramic-coated tungsten powder.
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Zheng, Qingjun; Liu, Yixiong; Faust, James A; De Wet, Danie J; Subbaiyan, Sudharsan; Komolwit, Piyamanee; Rowe, Mark J, Cladded articles and methods of making the same.
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Zuberi, Bilal; Lachenauer, Robert G., Device for catalytically reducing exhaust.
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Kish Frederick A. (Wheeling IL) Golinkin Herbert S. (Naperville IL) Abt Daniel C. (Arlington Heights IL), Elastomeric pad between railroad rail and railroad tie.
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Oswood Jon W. ; Bodin James P. ; Siebels Randy L. ; Wehr Eugene W., Electrical contact for use in a circuit breaker and a method of manufacturing thereof.
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Zuberi, Bilal, Highly porous mullite particulate filter substrate.
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Dawson, Joel T.; DeWet, Danie; Zheng, Qingjun, Imparting high-temperature wear resistance to turbine blade Z-notches.
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Zheng, Qingjun; Liu, Yixiong; Faust, James A; Rowe, Mark J; De Wet, Danie J; Subbaiyan, Sudharsan; Meyer, Michael J, Methods of making metal matrix composite and alloy articles.
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Zuberi, Bilal, Multi-functional substantially fibrous mullite filtration substrates and devices.
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Baker, Dean M.; Meeks, Henry S., Multifunctional high strength metal composite materials.
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Alward, Gordon S.; Dichiara, Jr., Robert A., Nonwoven composites and related products and methods.
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Rodhammer, Peter, Process for producing a composite material.
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Zuberi,Bilal, Refractory exhaust filtering method and apparatus.
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Beals, James T.; Persky, Joshua; Shah, Dilip M.; Seetharaman, Venkat; Bose, Sudhangshu; Snyder, Jacob; Santeler, Keith; Verner, Carl; Murray, Stephen D.; Marcin, John; Gupta, Dinesh; Bales, Daniel A.; Paulonis, Daniel Francis; Cotnoir, Glenn; Wiedemer, John, Refractory metal core coatings.
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Zuberi,Bilal; Lachenauer,Robert G., Substantially fibrous exhaust screening system for motor vehicles.
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Zuberi,Bilal; Lachenauer,Robert G., Substantially fibrous refractory device for cleaning a fluid.
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Quick, Nathaniel R; Murray, Michael C, Thermal doping of materials.
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Quick, Nathaniel R; Murray, Michael C, Ultra-high pressure doping of materials.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Method for clad-coating refractory and transition metals and ceramic particles 원문보기