Alumina ceramic composition

Details Alumina ceramic composition Alumina ceramic composition

1986-08-26

1987-05-26

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

501152, 501153, C04B 3510, C04B 3546

Patent

active

046686460

ABSTRACT:
An alumina ceramic composition to provide a low dielectric loss in the high frequency region upon sintering, which consists essentially of: 100 parts by weight of a base composition containing therein Al.sub.2 O.sub.3, CaO and TiO.sub.2 within their respective compositional range; and 0.03 to 3 parts by weight of La.sub.2 O.sub.3. The base composition is within a range A-B-C-D-E-A in the ternary diagram (Figure) in molar fraction:

REFERENCES:
patent: 4591574 (1986-05-01), Ando et al.

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