Titanium diboride-nickel graded materials prepared by field-activated, pressure-assisted synthesis process

被引：18

作者：

Chen, Shao Ping ^{[1
]}

Sen Meng, Qing ^{[1
]}

Liu, W. ^{[1
]}

Munir, Z. A. ^{[2
]}

机构：

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

[2] Univ Calif Davis, Dept Chem Engn & Mat Sci, Davis, CA 95616 USA

来源：

JOURNAL OF MATERIALS SCIENCE | 2009年 / 44卷 / 04期

关键词：

MECHANICAL-PROPERTIES; COMBUSTION SYNTHESIS; ALUMINUM; MICROSTRUCTURE; COMPOSITES; CERAMICS;

D O I：

10.1007/s10853-008-3178-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The formation of four-layered functionally graded material (FGM) samples of TiB2-Ni/TiB2-Ni(3)A + Ni/Ni3Al/Ni by field-activated, pressure-assisted synthesis process (FAPAS) was investigated. The microstructure, phase composition of the interfaces, and mechanical properties of the graded material were characterized. Elemental concentration profiles across interfaces between layers showed significant interdiffusion, indicative of formation of good bonds. The measured microhardness values of the sample increased monotonically from the nickel substrate to the surface layer (TiB2-Ni). The values ranged from about 360 to over 3500 HK over a distance of 2 mm. The results of this investigation demonstrate the feasibility of the FAPAS process for rapid formation of FGMs with good diffusion bonds.

引用

页码：1121 / 1126

页数：6

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