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有色金属(冶炼部分):2014,(6):58-62
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SPS烧结钛固溶体致密陶瓷TiOxCyNz的研究
张垚,江波,侯军刚,朱鸿民
(钢铁冶金新技术国家重点实验室,钢铁冶金新技术国家重点实验室,北京科技大学冶金与生态工程学院,钢铁冶金新技术国家重点实验室,北京科技大学冶金与生态工程学院,钢铁冶金新技术国家重点实验室,北京科技大学冶金与生态工程学院)
Study of Synthesis and Densification of Spark Plasma Sintered (SPS) Titanium Oxycarbonitride Ti3OCN
Yao Zhang,Bo jiang,Jungang Hou and Hongmin Zhu
(State Key Laboratory of Advanced Metallurgy,School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing,,,)
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投稿时间:2013-11-23     修订日期:2013-11-27     录用日期:2013-11-27     网络发布日期:2014-05-23
中文摘要: 以TiO、TiC和TiN的商业粉末为原料,采用放电等离子烧结技术(SPS)在1 600 ℃制备致密的钛固溶体Ti3OCN,系统研究了不同烧结方式下(包括SPS、传统烧结(CS)和它们的组合)烧结Ti3OCN的致密化过程和性能变化。结果表明,制备的Ti3OCN具有面心立方结构,其形成机理是O、N元素进入TiC。在SPS之后进行的CS过程可以小范围地增加钛固溶体的密度和电导率,但会降低其机械性能。
Abstract:Dense bulk of titanium oxycarbonitride (Ti3OCN) was successfully synthesized by Spark Plasma Sintering (SPS) at 1 600 ℃ with commercial powder TiO, TiC and TiN as precursors. The effects of different sintering routes, including SPS, conventional sintering (CS), combination of SPS and CS, on densification, morphologies, electrical conductivity and mechanical properties were systematically investigated. The results show that formation mechanism of TiOCN with face-centred-cubic structure is diffusion of oxygen and nitrogen into crystal lattices of TiC during SPS process. Aid of CS limitedly improves density and conductivity of TiOCN at expense of a slight decreases of its mechanical properties.
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基金项目:国家自然科学基金重点项目(50934001)
引用文本:
张垚,江波,侯军刚,朱鸿民.SPS烧结钛固溶体致密陶瓷TiOxCyNz的研究[J].有色金属(冶炼部分),2014(6):58-62.
Yao Zhang,Bo jiang,Jungang Hou,Hongmin Zhu.Study of Synthesis and Densification of Spark Plasma Sintered (SPS) Titanium Oxycarbonitride Ti3OCN[J].Nonferrous Metals (Extractive Metallurgy),2014(6):58-62.

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