Glass-ceramic sintered body

Details Glass-ceramic sintered body Glass-ceramic sintered body

1996-10-30

1998-05-26

Group, Karl

Compositions: ceramic

Ceramic compositions

Devitrified glass-ceramics

501 10, 501 32, 428434, C03C 1006

Patent

active

057564086

ABSTRACT:
A glass-ceramic sintered body containing Si, Al, Zn, element of Group 2a and Group 4a of the periodic table, and Boron and Oxygen, as constituent elements, and comprising a glass phase and crystalline phases, wherein the crystalline phase comprises a first crystalline phase of a composite oxide containing at least Si, Al and Ca or Sr, or, Si, Al, Ca and Sr, a second crystalline phase of ZrO.sub.2 crystalline and a third crystalline phase of spinel crystalline is presented. The glass-ceramic sintered body has a high dielectric constant of not smaller than 8.5 and have a fracture strength of not smaller than 20 kg/mm.sup.2 and preferred as an insulation substrate of a circuit board, a substrate board for mounting an integrated circuit or an electronic compornent part.

REFERENCES:
patent: 4621066 (1986-11-01), Nishigaki et al.
patent: 5045402 (1991-09-01), Adams, Jr. et al.
patent: 5338710 (1994-08-01), Ishigame et al.
patent: 5369067 (1994-11-01), Ismail et al.

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