Low temperature sintering ceramic material composition and proce

Details Low temperature sintering ceramic material composition and proce Low temperature sintering ceramic material composition and proce

1987-09-01

1989-05-09

Dixon, Jr., William R.

Compositions: ceramic

Ceramic compositions

Refractory

501121, C04B 3504

Patent

active

048290297

ABSTRACT:
A low temperature sintering ceramic material, having low temperature sinterability and excellent thermal conductivity, is particularly suitable for use in making an IC substrate of a ceramic printed plate board. This low temperature sintering ceramic material has two composition types. One is a binary composition type ceramic material consisting essentially of MgO and B.sub.2 O.sub.3, and the other is a ternary composition type ceramic material composed of principal components consisting of MgO and B.sub.2 O.sub.3 and assisting components consisting of one or more selected from Li.sub.2 O, Na.sub.2 O, K.sub.2 O, a fluoride of an alkali metal and a fluoride of an alkaline earth metal. After sintering, MgO and B.sub.2 O.sub.3 are respectively contained at 50 to 90 mol% and 10 to 50 mol% on 100 mol% of the total amount of MgO and B.sub.2 O.sub.3.

REFERENCES:
patent: 683795 (1901-10-01), Rawson et al.
patent: 2957752 (1960-10-01), Gloss
patent: 3337353 (1967-08-01), Alper et al.
patent: 3573079 (1971-03-01), Shibasaki et al.

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