Pressure-assisted combustion synthesis of dense layered Ti3AlC2 and its mechanical properties

被引：44

作者：

Khoptiar, Y ^{[1
]}

Gotman, I ^{[1
]}

Gutmanas, EY ^{[1
]}

机构：

[1] Technion Israel Inst Technol, Fac Mat Engn, IL-32000 Haifa, Israel

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2005年 / 88卷 / 01期

关键词：

D O I：

10.1111/j.1551-2916.2004.00012.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：

A near-single-phase Ti3AlC2 ternary carbide was synthesized from 3Ti-1.1Al-1.8C powder blend, both by the wave propagation and thermal explosion (TE) modes of self-propagating high-temperature synthesis. The application of a moderate (28 MPa) pressure immediately after TE at 800degreesC (reactive forging) yielded a 95% dense material containing, in addition to Ti3AlC2, an appreciable amount of TiC1-x. By adjusting the starting composition, a 99% dense material containing up to 90 vol.% Ti3AlC2 was obtained. The material had a fine-layered microstructure with Ti3AlC2 grain size not exceeding 10 pro. The samples were readily machinable and had a high compressive strength of similar to800 MPa up to 700degreesC.

引用

页码：28 / 33

页数：6

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