Low-temperature sintering of aluminum nitride with YF3-CaF2 binary additive

A binary additive system, YF3-CaF2, was adopted in the low-temperature sintering of AlN ceramics. After sintering at 1650 C for 6 h, thermal conductivity up to 187 W/m.K was achieved. The density of every specimen was higher than 3.26 g/cm3, the theoretical density of AlN. It can be concluded that t...

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Bibliographic Details
Published inJournal of materials science letters Vol. 18; no. 9; pp. 703 - 704
Main Authors Liu, Y, Zhou, H, Qiao, L, Wu, Y
Format Journal Article
LanguageEnglish
Published Dordrecht Kluwer Academic Publishers 1999
Subjects
Applied sciences
Building materials. Ceramics. Glasses
Ceramic industries
Chemical industry and chemicals
Electrotechnical and electronic ceramics
Exact sciences and technology
Technical ceramics
Yttrium Fluorides
Aluminium Nitrides
Additive
Sintering
Calcium Fluorides
Manufacturing
Non oxide ceramics
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Summary:A binary additive system, YF3-CaF2, was adopted in the low-temperature sintering of AlN ceramics. After sintering at 1650 C for 6 h, thermal conductivity up to 187 W/m.K was achieved. The density of every specimen was higher than 3.26 g/cm3, the theoretical density of AlN. It can be concluded that the YF3-CaF2 binary additive is more effective in enhancing densification and thus in improving thermal conductivity than CaF2 alone. 9 refs.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0261-8028
DOI:10.1023/A:1006692111736