Phase Analysis and Mechanical Properties of Ti/Al2O3 Composite Prepared by Hot Pressing

被引：0

作者：

Feng Shuai ^{[1
]}

Wang Zhi ^{[1
]}

Shi Guopu ^{[1
]}

Ma Yan ^{[1
]}

Liu Luhao ^{[1
]}

机构：

[1] Univ Jinan, Jinan 250022, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2013年 / 42卷

关键词：

Ti/Al2O3; composite; hot pressing; phase analysis; mechanical properties; TITANIUM;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ti/Al2O3 composites with different contents of niobium were prepared by a hot pressing technique. The effect of niobium content on phases and mechanical properties of composites was studied. The results show Nb can prevent the reaction of dissociated Al atoms from Al2O3 with Ti by capturing Al atoms and combining AlNb2 or AlNb3, which optimizes the interface reaction and improves mechanical properties of composite. The relative density, bending strength, fracture toughness and micro-hardness of the composites all increase with the Nb content increasing, and then decrease. Relative density, fracture toughness and micro-hardness reach maximum values of 98.97%, 5.18 MPa.m(1/2) and 16.56 GPa, respectively when the Nb content is 1.5 vol%, while the bending strength reaches the maximum value of 307.17 MPa when Nb content is 2.0 vol%.

引用

页码：392 / 395

页数：4

共 12 条

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