Synthesis of TiB2-TiC-Ni/TiAl/Ti functionally gradient materials by FAPAS process

被引：6

作者：

Liang Lianjie ^{[1
]}

Meng Qingsen ^{[1
]}

Chen Shaoping ^{[1
]}

Liu Zefeng ^{[1
]}

Xue Pengfei ^{[1
]}

Chen Ruixue ^{[1
]}

机构：

[1] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China

来源：

RARE METALS | 2011年 / 30卷

基金：

中国国家自然科学基金;

关键词：

TiB2-TiC composite ceramics; FGM; interfacial microstructure; FAPAS; combustion synthesis; FIELD; PRESSURE; CONSOLIDATION; COMPOSITES; COMBUSTION; ALUMINUM;

D O I：

10.1007/s12598-011-0326-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Field-activated pressure-assisted synthesis (FAPAS) was used to prepare TiB2-TiC-Ni/TiAl/Ti functionally gradient materials. Interfacial microstructure and bonding strength of materials were mainly investigated. The microstructure, phase composition and distribution of elements of interface were analyzed by SEM, XRD and EDS. The shear strength and micro-hardness were also tested. The results show that the particles of TiB2-TiC composite ceramics prepared by FAPAS are fine and homogeneous disperse. Closely metallurgical bonding forms between layers by mutual diffusion of different elements across the interfaces. The maximum shear strength of joint reaches 85.878 MPa and the fracture occurs at the interface of cermet and TiAl. The micro-hardness of the sample changes gradually from titanium substrate to the cermet with a maximum hardness of 2760HV in the cermet.

引用

页码：467 / 471

页数：5

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