Effect of trace Fe doping on the hydrogen reduction behaviors of WO3 powders
Tungsten powders without and with Fe doping (0.1% and 1.0% in mass fraction) were prepared by liquid‒solid doping and two-step hydrogen reduction method, respectively. The influences of trace Fe on the reduction behaviors of WO3 powders and the microstructure characteristic of W powders were systema...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Office of Powder Metallurgy Technology
2021-06-01
|
| Series: | Fenmo yejin jishu |
| Subjects: | |
| Online Access: | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2021030007 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850247249188093952 |
|---|---|
| author | CHEN Shu-qun HU Hai-dong ZHOU Wen-yuan HU Peng LI Hong-yi WANG Jing-shu |
| author_facet | CHEN Shu-qun HU Hai-dong ZHOU Wen-yuan HU Peng LI Hong-yi WANG Jing-shu |
| author_sort | CHEN Shu-qun |
| collection | DOAJ |
| description | Tungsten powders without and with Fe doping (0.1% and 1.0% in mass fraction) were prepared by liquid‒solid doping and two-step hydrogen reduction method, respectively. The influences of trace Fe on the reduction behaviors of WO3 powders and the microstructure characteristic of W powders were systematically studied. The results indicate that the Fe-containing solid solution is formed in the surface crystal lattice of WO3 particles after doping and calcination. In the process of hydrogen reduction, Fe solution can reduce the reaction temperatures of WO2.9→WO2 and WO2→W, promote the formation of micro-cracks and holes in the WO3, and refine the particle size of tungsten powders. After reduction, Fe migrates from the surface of WO3 particles to the interior of tungsten particles, and the Fe distribution changes obviously. |
| format | Article |
| id | doaj-art-065785574d7e4fcd9cb0b84efabf9408 |
| institution | OA Journals |
| issn | 1001-3784 |
| language | zho |
| publishDate | 2021-06-01 |
| publisher | Editorial Office of Powder Metallurgy Technology |
| record_format | Article |
| series | Fenmo yejin jishu |
| spelling | doaj-art-065785574d7e4fcd9cb0b84efabf94082025-08-20T01:59:00ZzhoEditorial Office of Powder Metallurgy TechnologyFenmo yejin jishu1001-37842021-06-0139320921510.19591/j.cnki.cn11-1974/tf.2021030007Effect of trace Fe doping on the hydrogen reduction behaviors of WO3 powdersCHEN Shu-qunHU Hai-dongZHOU Wen-yuanHU PengLI Hong-yiWANG Jing-shuTungsten powders without and with Fe doping (0.1% and 1.0% in mass fraction) were prepared by liquid‒solid doping and two-step hydrogen reduction method, respectively. The influences of trace Fe on the reduction behaviors of WO3 powders and the microstructure characteristic of W powders were systematically studied. The results indicate that the Fe-containing solid solution is formed in the surface crystal lattice of WO3 particles after doping and calcination. In the process of hydrogen reduction, Fe solution can reduce the reaction temperatures of WO2.9→WO2 and WO2→W, promote the formation of micro-cracks and holes in the WO3, and refine the particle size of tungsten powders. After reduction, Fe migrates from the surface of WO3 particles to the interior of tungsten particles, and the Fe distribution changes obviously.https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2021030007trace fetungsten powdershydrogen reductiondopingultrafine powders |
| spellingShingle | CHEN Shu-qun HU Hai-dong ZHOU Wen-yuan HU Peng LI Hong-yi WANG Jing-shu Effect of trace Fe doping on the hydrogen reduction behaviors of WO3 powders Fenmo yejin jishu trace fe tungsten powders hydrogen reduction doping ultrafine powders |
| title | Effect of trace Fe doping on the hydrogen reduction behaviors of WO3 powders |
| title_full | Effect of trace Fe doping on the hydrogen reduction behaviors of WO3 powders |
| title_fullStr | Effect of trace Fe doping on the hydrogen reduction behaviors of WO3 powders |
| title_full_unstemmed | Effect of trace Fe doping on the hydrogen reduction behaviors of WO3 powders |
| title_short | Effect of trace Fe doping on the hydrogen reduction behaviors of WO3 powders |
| title_sort | effect of trace fe doping on the hydrogen reduction behaviors of wo3 powders |
| topic | trace fe tungsten powders hydrogen reduction doping ultrafine powders |
| url | https://pmt.ustb.edu.cn/article/doi/10.19591/j.cnki.cn11-1974/tf.2021030007 |
| work_keys_str_mv | AT chenshuqun effectoftracefedopingonthehydrogenreductionbehaviorsofwo3powders AT huhaidong effectoftracefedopingonthehydrogenreductionbehaviorsofwo3powders AT zhouwenyuan effectoftracefedopingonthehydrogenreductionbehaviorsofwo3powders AT hupeng effectoftracefedopingonthehydrogenreductionbehaviorsofwo3powders AT lihongyi effectoftracefedopingonthehydrogenreductionbehaviorsofwo3powders AT wangjingshu effectoftracefedopingonthehydrogenreductionbehaviorsofwo3powders |