Strengthening and Toughening Effect of Yttrium on Al2O3/TiCN Ceramic Tool Material
来源期刊：JOURNAL OF RARE EARTHS2000年第1期
论文作者：HUANG Chuan-zhen DENG Jian-xin XU Chong-hai AI Xing
Key words：rare earths; yttrium; ceramic tool material; strengthening and toughening;
Abstract: The strengthening and toughening effect of yttrium on an advanced Al2O3/TiCN ceramic tool material was studied by means of SEM, TEM and energy spectrum analysis. Results showed that yttrium can react with the impurity elements such as W, Fe, Cr, etc. Thus, the interfaces between ceramic phases are purified and the interfacial binding strength is increased. As a result, the mechanical properties of the Al2O3/TiCN ceramic tool material reinforced with yttrium are improved significantly. In addition, the effect of yttrium on particle strengthening of the solid solution TiCN may partly contribute to the improvement of the mechanical properties.
HUANG Chuan-zhen1，DENG Jian-xin1，XU Chong-hai2，AI Xing1
(1.Department of Mechanical Engineering, Shandong University of Technology, Jinan 250061, China;
2.Department of Mechano-Electronic Engineering, Shandong Institute of Light Industry, Jinan 250100, China)
Abstract:The strengthening and toughening effect of yttrium on an advanced Al2O3/TiCN ceramic tool material was studied by means of SEM, TEM and energy spectrum analysis. Results showed that yttrium can react with the impurity elements such as W, Fe, Cr, etc. Thus, the interfaces between ceramic phases are purified and the interfacial binding strength is increased. As a result, the mechanical properties of the Al2O3/TiCN ceramic tool material reinforced with yttrium are improved significantly. In addition, the effect of yttrium on particle strengthening of the solid solution TiCN may partly contribute to the improvement of the mechanical properties.
Key words:rare earths; yttrium; ceramic tool material; strengthening and toughening;
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