Effect of CaCO3-Y2O3 addition on synthesis of AlN powder by carbothermal reduction-nitridation of Al2O3

被引：2

作者：

Ide, T

Komeya, K

Suehiro, T

Tatami, J

Meguro, T

Naito, M

Hotta, T

Kuibira, A

机构：

[1] Yokohama Natl Univ, Grad Sch Environm & Informat Sci, Hodogaya Ku, Yokohama, Kanagawa 2408501, Japan

[2] Japan Fine Ceram Ctr, Atsuta Ku, Nagoya, Aichi 4568587, Japan

[3] Sumitomo Elect Ind Ltd, Itami, Hyogo 6640016, Japan

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 2001年 / 109卷 / 12期

关键词：

aluminum nitride; synthesis; carbothermal reduction-nitridation; phase reaction; aluminum oxide; calcium oxide; yttrium oxide;

D O I：

10.2109/jcersj.109.1276_1051

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The effect of addition of binary system CaO-Y2O3 on the synthesis of AIN powder by carbothermal reduction-nitridation of Al2O3 was investigated. The nitridation was conducted at 1450 degreesC in N-2 gas flow. The morphology of synthesized powders was different from the original Al2O3 powder. The XRD analysis showed that the reaction progressed through formation of several aluminates during nitridation. These aluminates were confirmed to promote the nitridation and vary the morphology of raw Al2O3. The amount of additives remained in final product is smaller than that of starting powder. This synthesized powder is considered to be advantageous to the densification because remaining compounds can act as a sintering aid.

引用

页码：1051 / 1054

页数：4

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