ALUMINUM NITRIDE SINTERED BODY WITH HIGH THERMAL CONDUCTIVITY AND ITS PREPARATION

An aluminum nitride sintered product with a high thermal conductivity (at least 100 W/m.K) can be prepared at a sintering temperature of less than 1850 .degree.C (often less than 1650 .degree.C) using a sinterable combination of aluminum nitride powder with at least three sintering aids. The sinteri...

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Bibliographic Details
Main Authors HASHIMOTO, NOBORU, ZHAO, JUNHONG, GUITON, THERESA A, RAFANIELLO, WILLIAM, CHIAO, YI-HUNG
Format Patent
LanguageEnglish
French
Published 26.01.1995
Edition6
Subjects
ARTIFICIAL STONE
BASIC ELECTRIC ELEMENTS
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
LIME, MAGNESIA
METALLURGY
REFRACTORIES
SEMICONDUCTOR DEVICES
SLAG
TREATMENT OF NATURAL STONE
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Summary:An aluminum nitride sintered product with a high thermal conductivity (at least 100 W/m.K) can be prepared at a sintering temperature of less than 1850 .degree.C (often less than 1650 .degree.C) using a sinterable combination of aluminum nitride powder with at least three sintering aids. The sintering aids include a source of a rare earth metal oxide, a source of an alkaline earth metal oxide, a boron source and, optionally, a source of aluminum oxide. The sinterable combinations may also be used to prepare cofired, multilayer substrates.
Bibliography:Application Number: CA19942171548