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| Effect of Heat Treatment Time and Green Density on Electrical Characteristics of Tantalum Nitride Powders |
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Received:March 14, 2012
Revised:March 14, 2012
Accepted:March 14, 2012
Published Online:September 19, 2012
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| DOI：10.3969/j.issn.1007-7545.2012.10.011 |
| KeyWord:tantalum nitride nanopowders; annealing; green density; electrical characteristics |
| Author | Institution |
| Liu Lianyun |
1.北京科技大学冶金与生态工程学院; 2.北京交通大学理学院 |
| Ma chunhong |
北京科技大学冶金与生态工程学院 |
| Huang Kai |
北京科技大学冶金与生态工程学院 |
| Zhu Hongmin |
北京科技大学冶金与生态工程学院 |
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| Abstract: |
| The tantalum nitride nanopowders synthesized by homogenous sodium reduction were annealed at 1 350 ℃ for different durations. The sintered blocks were electrochemically oxidized. The phase structure and microstructure of sintered powders were analyzed with XRD and FESEM. The effects of annealing time and green density on electrical characteristics of powders were studied. The results show that the sintered anode blocks present high CV and low current leakage when annealed at 1 350 ℃ for 40 min with the green density of the powders of 4 g/cm3. |
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