Study on Preparation and Properties of Tungsten-Copper Composites by Sol-Gel Self-propagating Combustion AITranslate
Abstract AITranslate
Using ammonium tungstate, cupric nitrate trihydrate and citric acid as raw materials, tungsten- copper oxide precursor was synthesized by sol-gel self-propagating combustion and then reduced to tung- sten-copper composite powder with hydrogen gas. Cold mold pressing and sintering in hydrogen were fol- lowed to prepare tungsten-copper composites. The composition and properties of the precursors and the re- duced powders were characterized by XRD, SEM and laser particle size analyzer. The morphology and phys- ical properties of the sintered billet were also studied. The results show that the sol-gel self-propagating combustion method can be used to prepare tungsten-copper composite powders with average particle size of 3.5-7.1 /μm and uniformly distributed tungsten and copper particles of 23-42 nm size. W-50Cu sintered at 1 300 ℃ has the highest relative density and conductivity,reaching 99.52% and 68.96%IACS, respec- tively. W-20Cu sintered at 1 300 ℃ has the highest Vickers hardness,reaching 229.
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Basic Information:
DOI：
Chinese Library Classification Number:TB331[一般工业技术—材料科学与工程]
Citation Information:
Using ammonium tungstate, cupric nitrate trihydrate and citric acid as raw materials, tungsten- copper oxide precursor was synthesized by sol-gel self-propagating combustion and then reduced to tung- sten-copper composite powder with hydrogen gas. Cold mold pressing and sintering in hydrogen were fol- lowed to prepare tungsten-copper composites. The composition and properties of the precursors and the re- duced powders were characterized by XRD, SEM and laser particle size analyzer. The morphology and phys- ical properties of the sintered billet were also studied. The results show that the sol-gel self-propagating combustion method can be used to prepare tungsten-copper composite powders with average particle size of 3.5-7.1 /μm and uniformly distributed tungsten and copper particles of 23-42 nm size. W-50Cu sintered at 1 300 ℃ has the highest relative density and conductivity,reaching 99.52% and 68.96%IACS, respec- tively. W-20Cu sintered at 1 300 ℃ has the highest Vickers hardness,reaching 229.
quote
| GB/T 7714-2015 | [1] GUI He-ren, ZHANG Xue-bin, DING Hui, et al. Study on Preparation and Properties of Tungsten-Copper Composites by Sol-Gel Self-propagating Combustion[J]. Rare Metals and Cemented Carbides, 2018(5): 24-29. |
| MLA | [1] GUI He-ren, et al., "Study on Preparation and Properties of Tungsten-Copper Composites by Sol-Gel Self-propagating Combustion." Rare Metals and Cemented Carbides, no. 5, 2018, pp. 24-29. |
| APA | [1] GUI He-ren, ZHANG Xue-bin, DING Hui, REN Xin, KOU Si-jie, WANG Song-lin, & FENG Yi. (2018). Study on Preparation and Properties of Tungsten-Copper Composites by Sol-Gel Self-propagating Combustion. Rare Metals and Cemented Carbides(5), 24-29. |
| IEEE | [1] GUI He-ren, ZHANG Xue-bin, DING Hui, REN Xin, KOU Si-jie, WANG Song-lin, and FENG Yi, "Study on Preparation and Properties of Tungsten-Copper Composites by Sol-Gel Self-propagating Combustion," Rare Metals and Cemented Carbides, no. 5, pp. 24-29, 2018. keywords: {tungsten- copper composite;sol- gel self- propagating combustion method;hydrogen reduction;cold mold pressing;sintering} |