Synthesis of single-phase polycrystalline Ti3SiC2 and Ti3AlC2 by hot pressing with the assistance of metallic Al or Si

被引：69

作者：

Zhu, JQ ^{[1
]}

Mei, BC ^{[1
]}

Xu, XW ^{[1
]}

Liu, J ^{[1
]}

机构：

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

来源：

MATERIALS LETTERS | 2004年 / 58卷 / 05期

关键词：

ceramics; microstructure; hot pressing; carbides; layered structures; titanium silicon carbide; titanium aluminum carbide;

D O I：

10.1016/S0167-577X(03)00567-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, aluminum and silicon were used as additives for the synthesis of Ti3SiC2 and Ti3AlC2, respectively. An appropriate amount of these additives accelerated the synthesis reaction of Ti3SiC2 and Ti3AlC2. Polycrystalline bulk samples of Ti3SiC2 and Ti3AlC2 were fabricated by hot pressing (HP) the starting mixtures of titanium carbide, titanium, silicon, and aluminum powders at a temperature of 1300-1400 degreesC under a pressure of 30 MPa. The prepared samples are predominantly single phase and fully dense. Hot pressed Ti3SiC2 and Ti3AlC2 grains are plane-like with average sizes of 5 and 15 mum in the longitudinal direction, respectively. The energy-dispersive spectroscope (EDS) results reveal that the atomic ratio of Si to Al in the sintered product is larger than that in the starting mixture. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：588 / 592

页数：5

共 12 条

[1] The MN+1AXN phases:: A new class of solids;: Thermodynamically stable nanolaminates [J].

Barsoum, MW .

PROGRESS IN SOLID STATE CHEMISTRY, 2000, 28 (1-4) :201-281

[2] Layered machinable ceramics for high temperature applications [J].

Barsoum, MW ;

Brodkin, D ;

ElRaghy, T .

SCRIPTA MATERIALIA, 1997, 36 (05) :535-541

[3] Processing and mechanical properties of Ti3SiC2:: I, reaction path and microstructure evolution [J].

El-Raghy, T ;

Barsoum, MW .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1999, 82 (10) :2849-2854

[4] Processing and mechanical properties of Ti3SiC2:: II, effect of grain size and deformation temperature [J].

El-Raghy, T ;

Barsoum, MW ;

Zavaliangos, A ;

Kalidindi, SR .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1999, 82 (10) :2855-2860

[5] CRYSTAL STRUCTURE OF TI3SIC2 A NEW TYPE OF COMPLEX CARBIDE [J].

JEITSCHKO, W ;

NOWOTNY, H .

MONATSHEFTE FUR CHEMIE, 1967, 98 (02) :329-+

[6] Synthesis of Ti3SiC2 polycrystals by hot-isostatic pressing of the elemental powders [J].

Li, JF ;

Sato, F ;

Watanabe, R .

JOURNAL OF MATERIALS SCIENCE LETTERS, 1999, 18 (19) :1595-1597

[7] TI3SIC-BASED MATERIALS PREPARED BY HIP-SHS TECHNIQUES [J].

LIS, J ;

MIYAMOTO, Y ;

PAMPUCH, R ;

TANIHATA, K .

MATERIALS LETTERS, 1995, 22 (3-4) :163-168

[8]

Pietzka MA., 1994, J. Phase Equilib, V15, P392, DOI [10.1007/BF02647559, DOI 10.1007/BF02647559]

[9] Synthesis and characterization of Ti3AlC2 [J].

Tzenov, NV ;

Barsoum, MW .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2000, 83 (04) :825-832

[10] Phase equilibria at 1000 degrees C in the Al-C-Si-Ti quaternary system: an experimental approach [J].

Viala, JC ;

Peillon, N ;

Bosselet, F ;

Bouix, J .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1997, 229 (1-2) :95-113

← 1 2 →