Pressureless reactive sintering of ZrB2 ceramic

被引：40

作者：

Brochu, A. ^{[1
]}

Gauntt, B. D. ^{[2
]}

Boyer, L. ^{[1
,2
]}

Loehman, R. E. ^{[2
]}

机构：

[1] McGill Univ, Montreal, PQ H3A 2B2, Canada

[2] Sandia Natl Labs, Adv Mat Labs, Albuquerque, NM 87106 USA

来源：

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY | 2009年 / 29卷 / 08期

关键词：

Powders-solid-state reaction; Milling; Sintering; Borides; ZrB2; HIGH-TEMPERATURE CERAMICS; MECHANICAL-PROPERTIES; ZIRCONIUM; OXIDATION; MICROSTRUCTURE; DENSIFICATION;

D O I：

10.1016/j.jeurceramsoc.2008.08.032

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：

Pressureless reactive sintering was investigated to fabricate ZrB2 from a mixture of elemental Zr and B powders. Both hand mixing and high-energy milling were used to blend the powders. The sintering experiments were carried out at 1800, 2000 and 2200 degrees C. The samples made from the high-energy milled powders had relative densities varying between 66 and 79%, while the relative densities of the hand mixed powders varied between 58 and 70%. The average grain size of the sintered ceramic was independent of the mixing procedure and increased with the sintering temperature (from 8.5 to 23.5 mu m for the hand mixed samples and from 4.6 to 34.9 mu m for the milled samples). (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1493 / 1499

页数：7

共 28 条

[1] EFFECT OF OXYGEN CONTAMINATION ON DENSIFICATION OF TIB2 [J].