Structure, microhardness and thermal conducting properties of the high-pressure high-temperature-treated Al-Ti-N materials

被引：2

作者：

Kudyakova, V. S. ^{[1
]}

Chukin, A. V. ^{[1
]}

Dorokhin, M. V. ^{[2
]}

Kuznetsov, Yu. M. ^{[2
]}

Shishkin, R. A. ^{[1
]}

Beketov, A. R. ^{[1
]}

机构：

[1] Ural Fed Univ, Ekaterinburg 620002, Russia

[2] Lobachevsky State Univ Nizhni Novgorod, Phys Tech Res Inst, Nizhnii Novgorod, Russia

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2019年 / 125卷 / 02期

关键词：

ALUMINUM NITRIDE;

D O I：

10.1007/s00339-019-2415-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The w-AlN rs-AlN polymorphic transition in Ti-Al-N system with low TiN content (3mol%) was observed. The experimental data show that this transition is possible under 12GPa pressure at 1773K. The formation of rs-AlN phase in the resulting composite materials was confirmed by XRD. The obtained materials have intermediate physical and mechanical properties as compared to the undoped w-AlN and TixAl1-xN solid solution. They are found to have high Vickers hardness (31GPa at a load of 50g)which is twice as hard as w-AlN. The thermal conductivity of the rs-AlN-containing Al-Ti-N materials was measured for the first time using the frequency separation (3) method and gave high thermal conductivity coefficients up to 100W/mxK.

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页数：9

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