MAX phase formation by intercalation upon annealing of TiCx/Al (0.4 ≤ x ≤ 1) bilayer thin films

被引：44

作者：

Abdulkadhim, Ahmed ^{[1
]}

Takahashi, Tetsuya ^{[1
]}

Music, Denis ^{[1
]}

Munnik, Frans ^{[2
]}

Schneider, Jochen M. ^{[1
]}

机构：

[1] Rhein Westfal TH Aachen, D-52074 Aachen, Germany

[2] Helmholtz Zentrum Dresden Rossendorf, D-01328 Dresden, Germany

来源：

ACTA MATERIALIA | 2011年 / 59卷 / 15期

关键词：

MAX phases; Thin film; Bilayer; Intercalation; Annealing; ISOTHERMAL HEAT-TREATMENT; TI-C SYSTEM; MECHANICAL-PROPERTIES; M(N+1)AX(N) PHASES; TEMPERATURE SYNTHESIS; VAPOR-DEPOSITION; RAY-DIFFRACTION; POWDER MIXTURE; RICH CORNER; AT.-PERCENT;

D O I：

10.1016/j.actamat.2011.06.029

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

TiCx/Al bilayer thin films were synthesized using combinatorial magnetron sputtering to study the influence of C content on the reaction products at different annealing temperatures. Based on energy-dispersive X-ray analysis calibrated by elastic recoil detection analysis data, x in TiCx was varied from 0.4 to 1.0. Film constitution was studied by X-ray diffraction before and after annealing at temperatures from 500 to 1000 degrees C. The formation of TiCx and Al in the as-deposited samples over the whole C/Ti range was identified. Upon annealing, TiCx reacts with Alto form Ti-Al-based intermetallics. At temperatures as low as 700 degrees C, the formation of MAX phases (space group P6(3)/mmc) is observed at x <= 0.7. Based on the comparison between the C content induced changes in the lattice spacing of TiCx and Ti2AlC as well as Ti3AlC2, we infer the direct formation of MAX phases by Al intercalation into TiCx for x <= 0.7. (C) 2011 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

引用

页码：6168 / 6175

页数：8

共 57 条

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