Pressure‐Assisted Combustion Synthesis of Dense Layered Ti3AlC2 and its Mechanical Properties
Pressure‐Assisted Combustion Synthesis of Dense Layered Ti3AlC2 and its Mechanical Properties
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DOI：
10.1111/j.1551-2916.2004.00012.x
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发表时间：
2004-12
影响因子：
3.9
通讯作者：
Y. Khoptiar;I. Gotman;E. Gutmanas
中科院分区：
文献类型：
--
作者：
Y. Khoptiar;I. Gotman;E. Gutmanas
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 800°C (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 μm. The samples were readily machinable and had a high compressive strength of ∼800 MPa up to 700°C.
