Thermal Conductivity and Cathodoluminescence of AlN Ceramics Sintered with Ca3Al2O6 as Sintering Additive

Takayuki Honma; T. Tooyama; Yuichiro  Kuroki; Tomoichiro Okamoto; Masasuke Takata; Yukihiro Kanechika; Masanobu Azuma; H. Taniguchi

doi:10.4028/www.scientific.net/AMR.11-12.179

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 11-12Thermal Conductivity and Cathodoluminescence of...

Thermal Conductivity and Cathodoluminescence of AlN Ceramics Sintered with Ca₃Al₂O₆ as Sintering Additive

Abstract:

Aluminum nitride (AlN) ceramics with various amounts of Ca3Al2O6 (C3A) as a sintering additive were sintered at 1880°C for 50 h in N2 atmosphere. The thermal conductivity of AlN ceramics increased with increasing amount of C3A in the range from 0.5 to 4.8 mass%. Cathodoluminescence (CL) intensity attributed to oxygen-induced defects decreased with increasing amount of C3A. From the results, the increase of the thermal conductivity was considered to relate to the decrease of the oxygen-induced defects by increasing amount of C3A.

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Periodical:

Advanced Materials Research (Volumes 11-12)

Pages:

179-182

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.11-12.179

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Online since:

February 2006

Authors:

Takayuki Honma, T. Tooyama, Yuichiro Kuroki, Tomoichiro Okamoto, Masasuke Takata, Yukihiro Kanechika, Masanobu Azuma, H. Taniguchi

Keywords:

Aluminum Nitride (AlN), Ca₃Al₂O₆, Cathodoluminescence, Thermal Conductivity (TC)

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