Preparation of TiAl/Ti2AlC composites with Ti/Al/C powders by in-situ hot pressing

被引：0

作者：

Mei Bingchu ^{[1
]}

Yan Ming ^{[1
]}

Zhu Jiaoqun ^{[1
]}

Zhou Weibing ^{[1
]}

机构：

[1] Wuhan Univ Technol, State Key Lab Adv Technol Mat Synth & Proc, Wuhan 430070, Peoples R China

来源：

JOURNAL OF WUHAN UNIVERSITY OF TECHNOLOGY-MATERIALS SCIENCE EDITION | 2006年 / 21卷 / 02期

关键词：

Ti-Al-C system; TiAl / Ti2AlC composites; in-situ hot pressing; microstructure;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

TiAl/Ti2AlC composites were prepared by in-situ hot pressing of Ti/Al/C powders mixtures and siniered at different temperatures were investigated by X-ray diffraction (XRD) of samples. The reaction procedure of T-Al-C system could be divided into three stages. Below 900 degrees C, K reacts with Al to form TiAl intermetallies; above 900 V, C reacts with remain T to form KC triggered by the exothermal reaction of Ti and Al; TiAl reacts with TiC to produce dense TiAl/Ti-2 AlC composites. In the holding stage, ternary Ti-2 AlC develops to layered polycrystal and conposites pyknosis in the meanwhile. The mechanism of synthesis and microstructure was especially discussed.

引用

页码：14 / 16

页数：3

共 10 条

[1] EXPERIMENTAL INVESTIGATION OF THE THERMODYNAMICS OF THE FE-TI-C AUSTENITE AND THE SOLUBILITY OF TITANIUM CARBIDE
BALASUBRAMANIAN, K
KROUPA, A
KIRKALDY, JS
[J]. METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1992, 23 (03): : 709 - 727
[2] The MN+1AXN phases:: A new class of solids;: Thermodynamically stable nanolaminates
Barsoum, MW
[J]. PROGRESS IN SOLID STATE CHEMISTRY, 2000, 28 (1-4) : 201 - 281
[3] CHOI Y, 1993, J MATER SCI, V28, P66
[4] Combustion synthesis of ternary carbide Ti3AlC2 in Ti-Al-C system
Ge, ZB
Chen, KX
Guo, JM
Zhou, HP
Ferreira, JMF
[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 2003, 23 (03) : 567 - 574
[5] GENERALIZED INTERACTION COEFFICIENTS .I. DEFINITIONS
LUPIS, CHP
ELLIOTT, JF
[J]. ACTA METALLURGICA, 1966, 14 (04): : 529 - &
[6] FABRICATION OF TI2ALC/TIAL COMPOSITES USING COMBUSTION REACTION PROCESS
MABUCHI, H
HARADA, K
TSUDA, H
NAKAYAMA, Y
[J]. ISIJ INTERNATIONAL, 1991, 31 (10) : 1272 - 1278
[7] Investigation of TiAl/Ti2AlC composites prepared by spark plasma sintering
Mei, BC
Miyamoto, Y
[J]. MATERIALS CHEMISTRY AND PHYSICS, 2002, 75 (1-3) : 291 - 295
[8] Phase equilibria in the Ti-Al binary system
Ohnuma, I
Fujita, Y
Mitsui, H
Ishikawa, K
Kainuma, R
Ishida, K
[J]. ACTA MATERIALIA, 2000, 48 (12) : 3113 - 3123
[9] Microstructure and some properties of TiAl-Ti2AlC composites produced by reactive processing
Ramaseshan, R
Kakitsuji, A
Seshadri, SK
Nair, NG
Mabuchi, H
Tsuda, H
Matsui, T
Morii, K
[J]. INTERMETALLICS, 1999, 7 (05) : 571 - 577
[10] Electronic structure and bonding properties of layered machinable Ti2AlC and Ti2AlN ceramics
Zhou, YC
Sun, ZM
[J]. PHYSICAL REVIEW B, 2000, 61 (19): : 12570 - 12573

← 1 →