Behavior of oxygen and carbon in ball-milled Si3N4 powders during heat treatment and sintering

被引：4

作者：

Wada, S

Kondo, Y

Sudo, E

Maki, Y

机构：

[1] Toyota Cent Res & Dev Labs Inc, Nagakute, Aichi 4801192, Japan

[2] Shin Etsu Chem Co Ltd, Gunma 3790133, Japan

来源：

JOURNAL OF THE CERAMIC SOCIETY OF JAPAN | 1999年 / 107卷 / 07期

关键词：

silicon nitride; oxygen; carbon; ball milling; ethanol;

D O I：

10.2109/jcersj.107.611

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：

Three kinds of Si3N4 powders, DW, TX and E10, with and without sintering additives were ball-milled using ethanol as medium. Oxygen and carbon contents in the mixed powders increased due to the mechanochemical reaction between the powders and ethanol. The increases of oxygen and carbon were almost the same for the three powders. After heat treatment at 800-1200 degrees C in vacuum or nitrogen gas, most of the carbon was desorbed. On the other hand, the increment of oxygen remained in the ceramic body even after sintering at 1750 degrees C.

引用

页码：611 / 614

页数：4

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