Impacts of Morphology and Microstructure of Tungsten Oxide on Properties and Sintering Performance of Nanometer WC Powders AITranslate
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Abstract：Impacts of morphology and microstructure of yellow tungsten on properties of nanometer WC powders were studied. Two kinds of nanometer W powders were obtained respectively by hydrogen reduc-tion of pretreated fine-grained yellow tungsten and normal yellow tungsten in a tube furnace at 560-760 ℃. After mixed with carbon black powders,both the two kinds of W powders were carbonized at 1 180 ℃ to prepare nanometer WC powders. Ultrafine-grained WC-Co sintered bodies were obtained by mixing, pressing and sintering of WC powders. And then the properties of nanometer WC powders and WC-Co sin- tered bodies were characterized. The results show that nanometer W powders of loose microstructure and good dispersion can be obtained more easily with fine-grained yellow tungsten of loose porous microstruc-ture. The obtained nanometer WC powders are more uniform,and the corresponding ultrafine-grained WC -Co sintered body has uniform microstructure and excellent performance.
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DOI：
Chinese Library Classification Number:TF122[冶金工程—粉末冶金]
Citation Information:
Abstract：Impacts of morphology and microstructure of yellow tungsten on properties of nanometer WC powders were studied. Two kinds of nanometer W powders were obtained respectively by hydrogen reduc-tion of pretreated fine-grained yellow tungsten and normal yellow tungsten in a tube furnace at 560-760 ℃. After mixed with carbon black powders,both the two kinds of W powders were carbonized at 1 180 ℃ to prepare nanometer WC powders. Ultrafine-grained WC-Co sintered bodies were obtained by mixing, pressing and sintering of WC powders. And then the properties of nanometer WC powders and WC-Co sin- tered bodies were characterized. The results show that nanometer W powders of loose microstructure and good dispersion can be obtained more easily with fine-grained yellow tungsten of loose porous microstruc-ture. The obtained nanometer WC powders are more uniform,and the corresponding ultrafine-grained WC -Co sintered body has uniform microstructure and excellent performance.
quote
| GB/T 7714-2015 | [1] LEI Chun-peng, LIU Gang, TANG Jian-cheng, et al. Impacts of Morphology and Microstructure of Tungsten Oxide on Properties and Sintering Performance of Nanometer WC Powders[J]. Rare Metals and Cemented Carbides, 2013(2): 53-57. |
| MLA | [1] LEI Chun-peng, et al., "Impacts of Morphology and Microstructure of Tungsten Oxide on Properties and Sintering Performance of Nanometer WC Powders." Rare Metals and Cemented Carbides, no. 2, 2013, pp. 53-57. |
| APA | [1] LEI Chun-peng, LIU Gang, TANG Jian-cheng, & ZHANG Fang. (2013). Impacts of Morphology and Microstructure of Tungsten Oxide on Properties and Sintering Performance of Nanometer WC Powders. Rare Metals and Cemented Carbides(2), 53-57. |
| IEEE | [1] LEI Chun-peng, LIU Gang, TANG Jian-cheng, and ZHANG Fang, "Impacts of Morphology and Microstructure of Tungsten Oxide on Properties and Sintering Performance of Nanometer WC Powders," Rare Metals and Cemented Carbides, no. 2, pp. 53-57, 2013. keywords: {tungsten oxide;nanometer W powder;nanometer WC powder;morphology and microstructure;sintering performance} |