Aluminum nitride sintered body

Details Aluminum nitride sintered body Aluminum nitride sintered body

1990-06-06

1992-06-23

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Refractory

501 98, C04B 3558

Patent

active

051242842

ABSTRACT:
Disclosed is an aluminium nitride sintered body composed of a sintered body of aluminum nitride, erubium (Er) metal or its compound and calcium (Ca) metal or its compounds, said sintered body containing 1.8 to 10% by weight of an erubium component calculated as an oxide and more than 0 to not more than 2% by weight of a calcium component calculated as an oxide, and consisting of crystal grains of aluminum nitride and an intergranular phase composed mainly of an aluminate other than Er.sub.3 Al.sub.5 O.sub.12, said sintered body further having a bulk density of 3.2 to 3.6 g/cm.sup.3.

REFERENCES:
patent: 4650777 (1987-03-01), Kurokawa et al.
patent: 4698320 (1987-10-01), Kasori et al.
patent: 4705762 (1987-11-01), Ota et al.
patent: 4711861 (1987-12-01), Sawamura et al.
patent: 4764321 (1988-08-01), Huseby et al.
patent: 4766097 (1988-08-01), Shinozaki et al.
patent: 4795724 (1989-01-01), Soma et al.
patent: 4810679 (1989-03-01), Dole et al.

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