Influence of yttrium and of the oxygen pressure on alpha alumina microstructure. Relation with mechanical properties

被引：16

作者：

Loudjani, MK

Haut, C

Parisot, S

机构：

[1] Univ. Paris Sud, Laboratoire de Métallurgie Structurale, CNRS URA 1107

来源：

RADIATION EFFECTS AND DEFECTS IN SOLIDS | 1995年 / 134卷 / 1-4期

关键词：

alpha-alumina; yttrium doping; microstructure; toughness; oxygen pressure;

D O I：

10.1080/10420159508227221

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The influence of yttrium doping on the alumina microstructure is correlated to the Y amount and to the oxygen pressure. A low oxygen pressure promotes the solubility of yttrium in the bulk, its segregation in grain boundaries and increases the alumina toughness. Moreover alumina grain growth is limited either by garnet precipitation or by yttrium segregation along boundaries.

引用

页码：233 / 237

页数：5

共 12 条

[1]

Loudjani M.K., Lesage B., Huntz A.M., L'Industrie Céramique, 53, (1986)

[2]

Fridez J.D., Thése de doctorat, (1986)

[3]

Evans A.G., Charles E.A., J. Am. Ceram. Soc, 59, (1976)

[4]

Lawn B.R., Evans A.G., J. Am. Ceram. Soc, 63, (1980)

[5]

Cook R.F., Pharr G.M., J. Am. Ceram. Soc, 73, (1990)

[6]

Laval P., Felder E., Mat. et Téch, (1993)

[7]

Loudjani M.K., Huntz A.M., Cortes R., J. of Material Science, 28, (1993)

[8]

Loudjani M.K., Thése d’Etat es-Sciences Orsay, (1992)

[9]

Loudjani M.K., Cortes R., J. Eur. Ceram. Soc, 14, (1994)

[10]

Mackrodt W.C., Adv. in Ceramics, 23, (1987)

← 1 2 →