Transmittance and cathodoluminescence of AlN ceramics sintered with Ca₃Al₂O₆ as sintering additive

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• 作者：Takayuki Honma ; Yuichiro Kuroki ; Tomoichiro Okamoto ; Masasuke Takata ; Yukihiro Kanechika ; Masanobu Azuma ; Hitofumi Taniguchi
• 关键词：Transmittance ; Cathodoluminescence ; Aluminum nitride ; Ca₃Al₂O₆
• 刊名：Ceramics International
• 出版年：2008
• 出版时间：May 2008
• 年：2008
• 卷：34
• 期：4
• 页码：943-946
• 全文大小：538 K

文摘

Aluminum nitride ceramics were prepared by sintering with 0–4.8 mass % of Ca₃Al₂O₆ (C₃A) as a sintering additive. The transmittance in the range of 260–550 nm increased with increasing amount of C₃A. The cathodoluminescence intensity attributed to oxygen-induced defects decreased with increasing amount of C₃A. From the results, the increase of the transmittance in the range of 260–550 nm was considered to be related to the decrease of the oxygen-induced defect density.