IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
US-0403209
(1989-09-01)
|
|
발명자
/ 주소 |
- Dubensky Ellen M. (Traverse City MI) Timm Edward E. (Traverse City MI)
|
| 출원인 / 주소 |
- The Dow Chemical Company (Midland MI 02)
|
| 인용정보 |
피인용 횟수 :
42 인용 특허 :
8 |
초록
▼
A powdered admixture of a boron, carbon, nitrogen or silicon derivative of a first metal, e.g., tungsten carbide, and a source of a second metal, e.g., molybdenum subcarbide when the second metal is molybdenum, is, when subjected to densification conditions, partially reacted and converted to a hard
A powdered admixture of a boron, carbon, nitrogen or silicon derivative of a first metal, e.g., tungsten carbide, and a source of a second metal, e.g., molybdenum subcarbide when the second metal is molybdenum, is, when subjected to densification conditions, partially reacted and converted to a hard, wear resistant material. Such a material, formed from an admixture of tungsten carbide and molybdenum subcarbide, contains tungsten monocarbide and at least one mixed tungsten/molybdenum carbide. This material has a Vickers hardness of at least about 2200 kg/mm2 measured using a 1 kg load. Articles formed from this material can be useful as, for example, nozzles in abrasive or nonabrasive waterjet cutting machines and various parts of wire drawing apparatus.
대표청구항
▼
A material suitable for use in fabricating articles of manufacture requiring high degrees of hardness or wear resistance, the material consisting essentially of a substantially fully dense, complex, multi-phase, fine-grained product of an incomplete reaction between AX and a source of B, the reactio
A material suitable for use in fabricating articles of manufacture requiring high degrees of hardness or wear resistance, the material consisting essentially of a substantially fully dense, complex, multi-phase, fine-grained product of an incomplete reaction between AX and a source of B, the reaction taking place under pressure and at an elevated temperature, said product consisting essentially of at least one compound AX and at least one compound (A,B)X wherein A and B are different materials selected from the group consisting of titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum and tungsten and X is carbon.
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