The sintering behavior of quasi-spherical tungsten nanopowders
文献类型：期刊论文
| 作者 | Li, Baoqiang1,2; Sun, Zhiqiang1,2; Hou, Guolin1,2; Ding, Fei1; Hu, Peng1 ; Yuan, Fangli1
|
| 刊名 | INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
 |
| 出版日期 | 2016-04-01 |
| 卷号 | 56期号:APR页码:44-50 |
| ISSN号 | 0263-4368 |
| 关键词 | Spherical shape Nanosized tungsten Sintering Microstructure Hardness |
| 通讯作者 | Hu, P |
| 英文摘要 | In this work, the sintering behavior of quasi-spherical tungsten nanoparticles was investigated by analysis the sintered compacts obtained at different sintering temperatures and dwell time, and the influence of microstructures on the density and Vickers microhardness of sintered products was also studied. Experimental results show that particle shape and size distribution are critical to the sintering activity and mechanical properties of obtained compacts. 91.3% of theoretical density (TD) of the compact could be obtained at low sintering temperature of 1500 degrees C, and the highest hardness of 606 VHN could be achieved when sintered at 1100 degrees C due to formation of uniform, densely packed sintered compacts with grain size of 235.7 nm. Importantly, unusual linear correlation between grain size and relative density was observed in our experiment, and a cut-off point exists at 85.6% of TD. The kinetic analysis revealed that surface diffusion is responsible for the mass transport during the initial sintering stage. (C) 2015 Elsevier Ltd. All rights reserved. |
| 学科主题 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| 研究领域[WOS] | Materials Science ; Metallurgy & Metallurgical Engineering |
| 关键词[WOS] | GRAIN-GROWTH ; DENSIFICATION BEHAVIOR ; THERMAL PLASMA ; INITIAL-STAGE ; POWDERS ; SIZE ; PARTICLES ; COMPACTS ; OXYGEN |
| 收录类别 | SCI |
| 原文出处 | ELSEVIER SCI LTD |
| 语种 | 英语 |
| WOS记录号 | WOS:000371187700006 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/20695]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Baoqiang,Sun, Zhiqiang,Hou, Guolin,et al. The sintering behavior of quasi-spherical tungsten nanopowders[J]. INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,2016,56(APR):44-50. |
| APA | Li, Baoqiang,Sun, Zhiqiang,Hou, Guolin,Ding, Fei,Hu, Peng,&Yuan, Fangli.(2016).The sintering behavior of quasi-spherical tungsten nanopowders.INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS,56(APR),44-50. |
| MLA | Li, Baoqiang,et al."The sintering behavior of quasi-spherical tungsten nanopowders".INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS 56.APR(2016):44-50. |
入库方式： OAI收割
来源：过程工程研究所
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