SINTERING AND PROPERTIES OF MONAZITE-TYPE CEPO4

被引：44

作者：

HIKICHI, Y ^{[1
]}

NOMURA, T ^{[1
]}

TANIMURA, Y ^{[1
]}

SUZUKI, S ^{[1
]}

MIYAMOTO, M ^{[1
]}

机构：

[1] KOKUSHIKAN UNIV,FAC ENGN,TOKYO 154,JAPAN

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 12期

关键词：

cerium; monazite; sintering; thermal conductivity; thermal expansion;

D O I：

10.1111/j.1151-2916.1990.tb04263.x

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：

Monazite-type CePO4 powder (average grain size 0.3-mu-m) was dry-pressed to disks or bars. The green compacts began to sinter above 950-degrees-C. Relative density greater-than-or-equal-to 99% and apparent porosity < 1% were achieved when the specimens were sintered at 1500-degrees-C for 1 h in air. The linear thermal expansion coefficient and thermal conductivity of the CePO4 ceramics were 9 x 10(-6)/degrees-C to 11 x 10(-6)/degrees-C (200-degrees to 1300-degrees-C) and 1.81 W/(m.K) (500-degrees-C), respectively. Bending strength of the ceramics (average grain size 4-mu-m) was 174 +/- 28 MPa (room temperature). The CePO4 ceramics were cracked or decomposed by acidic or alkaline aqueous solutions at high temperatures.

引用

页码：3594 / 3596

页数：3

共 15 条

[1]

BONDAR IA, 1976, ZH NEORG KHIM, V21, P1126

[2]

FULLMAN RL, 1953, T AM I MIN MET ENG, V197, P447

[3] SOLID-SOLUTIONS IN SYSTEMS MONAZITE (CEPO4) HUTTONITE (THSIO4), AND MONAZITE CA0.5TH0.5PO4 [J].