Thermal expansion of Ti-Al-N and Cr-Al-N coatings

被引：48

作者：

Bartosik, M. ^{[1
,2
]}

Holec, D. ^{[2
,3
]}

Apel, D. ^{[4
]}

Klaus, M. ^{[4
]}

Genzel, C. ^{[4
]}

Keckes, J. ^{[5
]}

Arndt, M. ^{[6
]}

Polcik, P. ^{[7
]}

Koller, C. M. ^{[1
,2
]}

Mayrhofer, P. H. ^{[1
,2
]}

机构：

[1] TU Wien, Inst Mat Sci & Technol, A-1060 Vienna, Austria

[2] TU Wien, Christian Doppler Lab Applicat Oriented Coating D, A-1060 Vienna, Austria

[3] Univ Leoben, Dept Phys Met & Mat Testing, A-8700 Leoben, Austria

[4] Helmholtz Zentrum Berlin Mat & Energien, D-12489 Berlin, Germany

[5] Univ Leoben, Dept Mat Phys, A-8700 Leoben, Austria

[6] Oerlikon Surface Solut AG, Oerlikon Balzers, LI-9496 Balzers, Liechtenstein

[7] Plansee Composite Mat GmbH, D-86983 Lechbruck, Germany

来源：

SCRIPTA MATERIALIA | 2017年 / 127卷

基金：

奥地利科学基金会;

关键词：

Thermal expansion; TiN; CrN; Ti-Al-N; Cr-Al-N; AIN; Ab initio; RESIDUAL-STRESS; STABILITY; ZR;

D O I：

10.1016/j.scriptamat.2016.09.022

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The thermal expansion coefficients (TECs) of B1 structured Ti-1-xAlxN and Cr-1-xAlxN thin films - investigated by synchrotron X-ray diffraction from room temperature to 600 degrees C - excellently agree with ab initio obtained temperature dependent calculations only if they were annealed at 600 degrees C. As-deposited thin films, with their built-in structural defects show a lower temperature dependence of their TECs and higher values. Furthermore, our data clearly show that the TECs of cubic Ti-1-xAlxN and Cr-1-xAlxN increase with increasing Al content, and that the TEC of wurtzite type B4 structured AlN is only about half of that of B1 AlN. (C) 2016 Acta Materialia Inc. Published by Elsevier Ltd. This is an open access article under the CC BY license.

引用

页码：182 / 185

页数：4

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