Whisker-reinforced ceramic cutting tool material
US5948715A · kind A · utility
1Cited by
8References
9Claims
0Family size
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Key dates
| Filing date | Jun 16, 1998 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Jun 16, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T407/27
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Oxide-based ceramic cutting inserts for chipforming machining of steel, comprising a ceramic oxide-based matrix of alumina and less than 10% by volume zirconia and 5-40% by volume of homogeneously dispersed whiskers based upon (Ta.sub.x Hf.sub.y Ti.sub.1-x-y)C.sub.1-z N.sub.z where 0<x<0.75 and 0<y<0.75, x+y>0.25 and 0.ltoreq.z<1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.