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| Study of Synthesis and Densification of Spark Plasma Sintered (SPS) Titanium Oxycarbonitride Ti3OCN |
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Received:November 23, 2013
Revised:November 27, 2013
Accepted:November 27, 2013
Published Online:May 23, 2014
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| DOI：10.3969/j.issn.1007-7545.2014.06.016 |
| KeyWord:titanium oxycarbonitride; Ti3OCN; Spark Plasma Sintered (SPS) technology; dense ceramic |
| Author | Institution |
| Yao Zhang |
钢铁冶金新技术国家重点实验室 |
| Bo jiang |
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 |
| Jungang Hou |
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 |
| Hongmin Zhu |
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 |
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| 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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