Effects of Carbon Addition on Microstructure of CoxWyC Composite Powders Prepared by In-situ Carbothermal Reaction AITranslate
Abstract AITranslate
CoxWyC composite powders were synthesized by in-situ carbonthermal reaction using Co3O4,WO3and C as the raw powders with different carbon mass fraction(10.15%,11.47%,12.76%and 14.01%).And the influence law of carbon addition on the microstructure of CoxWyC composite powders was emphatically studied.The results show that the oxygen content of CoxWyC composite powders is less than 0.1%as the carbonization process is carried out after the completion of reduction.At the same time,the phase of CoxWyC composite powders is closely related to its carbon addition.When the carbon addition is 10.15%,the phase consists of W and Co7W6.When the carbon addition increases to 11.47%,the phase changes to Co6W6C.And when the carbon addition increases to 12.76%,Co3W3C phase and WC phase appear in the composite powders.When the carbon addition reaches 14.01%,the content of Co3W3C phase and WC phase both increases.In addition,there is mutual diffusion between tungsten and cobalt at high temperature during the in-situ carbonthermal reaction to form sintering neck,resulting in the dendritic morphology of CoxWyC composite powders.And the rapid diffusion of carbon forms a Co6W6C phase with low density,which causes the composite grains to expand and crack,improving the homogeneity of the particle size distribution of CoxWyC composite powders.When the carbon addition increases to 14.01%,fine WC grains are in-situ precipitated on the surface of the dendritic particles of the composite powders.
KeyWords AITranslate
1罗芳,潘书媛,杨泽惠.中高温质子交换膜燃料电池催化剂研究进展[J].物理化学学报,2021,37(9):58-70. 被引量：5
2李丹,张博雅,刘柏鸿,陶阳,熊子昂,侯三英.质子交换膜燃料电池高稳定性低铂载量膜电极的研究进展[J].化工进展,2021,40(S02):89-100. 被引量：2
3王健,丁炜,魏子栋.超低铂用量质子交换膜燃料电池[J].物理化学学报,2021,37(9):71-93. 被引量：9
4杨源博,李阳,王显,葛君杰,刘长鹏,邢巍.质子交换膜燃料电池阳极抗CO毒化单原子催化剂的研究进展[J].分子科学学报,2021,37(6):527-536. 被引量：1
5李伟斌,郭文林,姚根有,潘登峰.质子交换膜燃料电池阴极催化剂研究进展[J].化工新型材料,2021,49(S01):296-300. 被引量：1
6杨诚辉,徐国钻,刘如铁,张龙辉,羊求民.不同氧化钨还原制备钨粉及其特性研究[J].稀有金属与硬质合金,2022,50(2):19-25. 被引量：1
1孙靖婷,童志博,刘诗昌,谢秋燕,张娜娜.铵浸钢渣固化砷碱渣制备微晶玻璃[J].中国资源综合利用,2022,40(6):17-20. 被引量：1
2李卓想,高桂兰,陈帅,李子祥.锂电池塑料及负极构建零价铁—铜/石墨—碳材料去除水中对氯苯酚[J].上海第二工业大学学报,2022,39(2):98-104.
3郭巨华,李彬,何人桂,汪建英,娄嘉,刘艳军,李詠侠,杨海林.Mo对WC-(8Co,2Ni)硬质合金组织与性能的影响[J].粉末冶金材料科学与工程,2022,27(5):488-497.
4张晓宏.“一带一路”视角下老挝苏州大学发展现状与前景[J].世界教育信息,2022,35(11):3-7.
5张志茹.唯物史观视域下短视频情感传播策略探究--以疫情下主流媒体的短视频报道为例[J].今传媒,2022,30(12):18-20.
6周军晖,黄聪.AZ91D镁合金喷涂WC/Al_(2)O_(3)复合金属陶瓷涂层及其摩擦磨损性能[J].粉末冶金工业,2022,32(5):80-84. 被引量：2
7周顺艳.论现实主义长篇小说《人世间》中的众生相--以周家两代人为例[J].普洱学院学报,2022,38(5):60-63.
8刘盛.现代金融体系视野下的金融法:理念信守与制度表达[J].政治与法律,2022(11):80-95.
9刘聪,甘贵生,江兆琪,黄天,马鹏,陈仕琦,许乾柱,包成利,程大勇,吴懿平.功率互连全IMC焊点的研究进展[J].中国有色金属学报,2022,32(10):2876-2896. 被引量：2
10黎荔.时空意识与老派市民家国观念的更生和嬗变——以老舍小说《四世同堂》为中心[J].湖北第二师范学院学报,2022,39(11):52-55.
Basic Information:
DOI：
Chinese Library Classification Number:TF123[冶金工程—粉末冶金]
Citation Information:
CoxWyC composite powders were synthesized by in-situ carbonthermal reaction using Co3O4,WO3and C as the raw powders with different carbon mass fraction(10.15%,11.47%,12.76%and 14.01%).And the influence law of carbon addition on the microstructure of CoxWyC composite powders was emphatically studied.The results show that the oxygen content of CoxWyC composite powders is less than 0.1%as the carbonization process is carried out after the completion of reduction.At the same time,the phase of CoxWyC composite powders is closely related to its carbon addition.When the carbon addition is 10.15%,the phase consists of W and Co7W6.When the carbon addition increases to 11.47%,the phase changes to Co6W6C.And when the carbon addition increases to 12.76%,Co3W3C phase and WC phase appear in the composite powders.When the carbon addition reaches 14.01%,the content of Co3W3C phase and WC phase both increases.In addition,there is mutual diffusion between tungsten and cobalt at high temperature during the in-situ carbonthermal reaction to form sintering neck,resulting in the dendritic morphology of CoxWyC composite powders.And the rapid diffusion of carbon forms a Co6W6C phase with low density,which causes the composite grains to expand and crack,improving the homogeneity of the particle size distribution of CoxWyC composite powders.When the carbon addition increases to 14.01%,fine WC grains are in-situ precipitated on the surface of the dendritic particles of the composite powders.
quote
| GB/T 7714-2015 | [1] WANG Hong-yun, WANG Shao-yi, LIU Li, et al. Effects of Carbon Addition on Microstructure of CoxWyC Composite Powders Prepared by In-situ Carbothermal Reaction[J]. Rare Metals and Cemented Carbides, 2022(5): 47-51. |
| MLA | [1] WANG Hong-yun, et al., "Effects of Carbon Addition on Microstructure of CoxWyC Composite Powders Prepared by In-situ Carbothermal Reaction." Rare Metals and Cemented Carbides, no. 5, 2022, pp. 47-51. |
| APA | [1] WANG Hong-yun, WANG Shao-yi, LIU Li, TANG Yan-yuan, & YANG Qiu-min. (2022). Effects of Carbon Addition on Microstructure of CoxWyC Composite Powders Prepared by In-situ Carbothermal Reaction. Rare Metals and Cemented Carbides(5), 47-51. |
| IEEE | [1] WANG Hong-yun, WANG Shao-yi, LIU Li, TANG Yan-yuan, and YANG Qiu-min, "Effects of Carbon Addition on Microstructure of CoxWyC Composite Powders Prepared by In-situ Carbothermal Reaction," Rare Metals and Cemented Carbides, no. 5, pp. 47-51, 2022. keywords: {CoWC composite powder;in-situ carbonthermal reaction;carbon addition;microstructure;phase} |