Effects of sintering temperature on mechanical properties of Ti/Al2O3 composites

被引：2

作者：

Shi, Guo-pu ^{[1
,2
]}

Wang, Zhi ^{[2
]}

Wu, Chao ^{[2
]}

Wang, Cheng-guo ^{[1
]}

机构：

[1] Shandong Univ, Sch Mat Sci & Engn, Jinan, Peoples R China

[2] Univ Jinan, Sch Mat Sci & Engn, Jinan, Peoples R China

来源：

EMERGING MATERIALS RESEARCH | 2016年 / 5卷 / 01期

基金：

中国国家自然科学基金;

关键词：

composites; mechanical properties; thermal properties;

D O I：

10.1680/jemmr.16.00010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Titanium/aluminum oxide (Ti/Al2O3) composites were fabricated by a vacuum hot-pressing sintering technique at the sintering temperature in the range of 1420-1480 degrees C. The dependence of the sintering temperature on the mechanical properties of the composites was discussed. The results showed that the mechanical properties, the microstructure and the phase constitution of the composites exhibited dependence on the sintering temperature. When the sintering temperature is 1450 degrees C, the composites, with 3 vol% cerium (IV) oxide (CeO2), showed the best mechanical property. The relative density, Vickers hardness, flexural strength and fracture toughness of the composites were 98.7%, 16.4 GPa, 487.2 MPa and 6.88 MPam(1/2) respectively. When the sintering temperature was 1480 degrees C, the mechanical property of the composite decreased significantly, which was mainly attributed to the abnormal grain growth due to the over sintering phenomenon.

引用

页码：141 / 146

页数：6

共 12 条

[1]

[安世武 An Shiwu], 2006, [宇航材料工艺, Aerospace Materials & Technology], V36, P54

[2]

[Anonymous], 2014, J U JINAN

[3]

Feng S, 2013, STUDY TI AL2O3 COMPO

[4]

Fu Z. Y., 1993, International Journal of Self-Propagating High-Temperature Synthesis, V2, P307

[5]

Guo JK, 1999, J INORG MATER, V14, P193

[6]

Kesuma HH., 2009, Journal Fizik UTM, V4, P42

[7] Effects of Nd2O3 on the mechanical properties and oxidation behavior of Ti/Al2O3 composites by vacuum hot pressing sintering [J].

Liu, Meijia ;

Wang, Zhi ;

Wu, Junyan ;

Li, Qinggang .

JOURNAL OF ALLOYS AND COMPOUNDS, 2015, 648 :116-121

[8] Effects of Nb on the elements diffusion and mechanical properties of laminated Ti/Al2O3 composites [J].

Liu, Meijia ;

Wang, Zhi ;

Wu, Junyan ;

Li, Qinggang ;

Wu, Chao ;

Li, Yuanyuan .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2015, 636 :263-268

[9] The new Heavy Ion ERDA set up at iThemba LABS Gauteng: Multilayer thin film depth profiling using direct calculation and Monte Carlo simulation codes [J].

Msimanga, M. ;

Wamwangi, D. ;

Comrie, C. M. ;

Pineda-Vargas, C. A. ;

Nkosi, M. ;

Hlatshwayo, T. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2013, 296 :54-60

[10] INTERFACIAL REACTIONS AND ADHESION STRENGTH OF METAL/CERAMIC COMPOSITES [J].

WANG, HF ;

GERBERICH, WW ;

ANGELO, JE .

JOURNAL OF MATERIALS RESEARCH, 1995, 10 (09) :2367-2373

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