Composite layer aluminum nitride base sintered body

Details Composite layer aluminum nitride base sintered body Composite layer aluminum nitride base sintered body

1986-06-02

1987-09-22

Swisher, Nancy A.

Stock material or miscellaneous articles

Composite

Of inorganic material

428699, C04B 3558, F27D 706

Patent

active

046955178

ABSTRACT:
A composite layer aluminum nitride-base sintered body has on at least one surface of AlN-base sintered body having a first layer and a second layer. The first layer is 100 parts by weight of at least one component selected from the group consisting of W, Mo, borides thereof and carbides thereof as a first component(s), and 0.1-50 parts by weight of AlN second component. The second layer has at least one component selected from the group consisting of W, Mo, borides thereof and carbides thereof. The thickness of said first layer is 0.5-40 .mu.m, and the sum of thickness of the first and second layers is 1-50 .mu.m. The AlN may also include sintering aids of oxides of rare earth metal and alkaline earth metals. Hydrides and oxides of Ti, Zr, Nb, V and Mn may be included in the first layer composition.

REFERENCES:
patent: 4540673 (1985-09-01), Takeda et al.
patent: 4578232 (1986-03-01), Huseby et al.
patent: 4585706 (1986-04-01), Takeda et al.
patent: 4591537 (1986-05-01), Aldinger et al.

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