Microstructures and adhesion of the oxide scale formed on titanium aluminum carbide substrates

被引：59

作者：

Lin, Zhijun ^{[1
]}

Zhuo, Mujin ^{[1
]}

Zhou, Yanchun ^{[1
]}

Li, Meishuan ^{[1
]}

Wang, Jingyang ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 2006年 / 89卷 / 09期

关键词：

HIGH-TEMPERATURE OXIDATION; LIQUID REACTION SYNTHESIS; ISOTHERMAL OXIDATION; TIO2; IMPROVEMENT; BEHAVIOR; AL2O3;

D O I：

10.1111/j.1551-2916.2006.01141.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：

Microstructures of oxidized Ti3AlC2 and Ti2AlC were investigated using transmission electron microscopy. The presence of Ti-rich precipitates in the Al2O3 oxide scale and the enrichment of Ti in the Al2O3 grain boundaries were identified. High diffusivity of Al in the carbides contributes to the selective oxidation of Al. Moreover, the adhesive strength between the oxide scales and the substrates exceeds 85 MPa. Strong adhesive strength contributes to the thermal-cyclic stability of the oxide scales.

引用

页码：2964 / 2966

页数：3

共 22 条

[1] EFFECT OF TIO2 ON INITIAL SINTERING OF AL2O3 [J].

BAGLEY, RD ;

CUTLER, IB ;

JOHNSON, DL .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1970, 53 (03) :136-&

[2] MECHANISM OF ISOTHERMAL OXIDATION OF THE INTERMETALLIC TIAL AND OF TIAL ALLOYS [J].

BECKER, S ;

RAHMEL, A ;

SCHORR, M ;

SCHUTZE, M .

OXIDATION OF METALS, 1992, 38 (5-6) :425-464

[3] Evidence of bilevel solubility in the bimodal microstructure of TiO2-doped alumina [J].

Chi, MF ;

Gu, H ;

Wang, X ;

Wang, PL .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2003, 86 (11) :1953-1955

[4] The improvement of high temperature oxidation of Ti-50Al by sputtering Al film and subsequent interdiffusion treatment [J].

Chu, MS ;

Wu, SK .

ACTA MATERIALIA, 2003, 51 (11) :3109-3120

[5] Interfacial segregation, pore formation, and scale adhesion on NiAl alloys [J].

Hou, PY ;

Priimak, K .

OXIDATION OF METALS, 2005, 63 (1-2) :113-130

[6] KOHLENSTOFFHALTIGE TERNARE VERBINDUNGEN (H-PHASE) [J].

JEITSCHKO, W ;

NOWOTNY, H ;

BENESOVSKY, F .

MONATSHEFTE FUR CHEMIE, 1963, 94 (04) :672-&

[7] A PRELIMINARY-STUDY OF PRECIPITATION IN TI4+-DOPED POLYCRYSTALLINE ALUMINA [J].

LANGENSIEPEN, RA ;

TRESSLER, RE ;

HOWELL, PR .

JOURNAL OF MATERIALS SCIENCE, 1983, 18 (09) :2771-2776

[8]

LEJUS AM, 1966, CR ACAD SCI C CHIM, V263, P1223

[9] Oxidation behavior of a TiAl-Al2Ti4C2-TiC-Al2O3 in situ composite [J].

Li, Z ;

Gao, W ;

Zhang, DL ;

Cai, ZH .

OXIDATION OF METALS, 2004, 61 (3-4) :339-354

[10] Microstructural characterization of layered ternary Ti2AlC [J].

Lin, ZJ ;

Zhuo, MJ ;

Zhou, YC ;

Li, MS ;

Wang, JY .

ACTA MATERIALIA, 2006, 54 (04) :1009-1015

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