Thermodynamic Analysis for Hydrothermal Synthesis of W-25Cu Composite Powders AITranslate
Abstract AITranslate
W-Cu composite powders were prepared by hydrothermal synthesis with sodium tungstate and cupric nitrate as the raw materials.The recovery rate was calculated of W-Cu composite powders prepared at different pH.Preparation process of the precursor of W-Cu composite powders was analyzed based on thermodynamics.Phase composition,morphology and microstructure of the prepared W-Cu composite powders were characterized by XRD,SEM,EDS and TEM.The results show that the recovery rates of W and Cu ions are different at different solution concentration and pH value.When sodium tungstate concentration is 0.6mol/L,cupric nitrate concentration is 0.578 6 mol/L and the pH value is 5.5,W and Cu ions precipitate in the form of CuWO4·2H2O,and their recovery rates are more than 99%.The product of hydrothermal synthesis has good dispersivity and uniform particle size of 15~20nm.After calcined at 500℃and reduced with hydrogen at 800℃for 60 min,W-Cu composite powders are obtained with well-distributed W and Cu elements,subglobose microstructure of W-covered Cu and particle size of 100~200nm.
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1Douqin Ma,Jingpei Xie,Jiwen Li,Shu Liu,Fengmei Wang,Huijie Zhang,Wenyan Wang,Aiqin Wang,Haoliang Sun.Synthesis and hydrogen reduction of nano-sized copper tungstate powders produced by a hydrothermal method[J]. International Journal of Refractory Metals and Hard Materials . 2014
2Y. Zhou,Q.X. Sun,R. Liu,X.P. Wang,C.S. Liu,Q.F. Fang.Microstructure and properties of fine grained W–15wt.% Cu composite sintered by microwave from the sol–gel prepared powders[J]. Journal of Alloys and Compounds . 2013
3Liujie Xu,Shizhong Wei,Jiwen Li,Guoshang Zhang,Baozhu Dai.Preparation, microstructure and properties of molybdenum alloys reinforced by in-situ Al 2 O 3 particles[J]. International Journal of Refractory Metals and Hard Materials . 2011 (1)
4XiaoLiang Shi,Hua Yang,Sheng Wang.Spark plasma sintering of W–15Cu alloy from ultrafine composite powder prepared by spray drying and calcining-continuous reduction technology[J]. Materials Characterization . 2008 (2)
5Dae-Gun Kim,Gil-Su Kim,Myung-Jin Suk,Sung-Tag Oh,Young Do Kim.Effect of heating rate on microstructural homogeneity of sintered W–15wt%Cu nanocomposite fabricated from W–CuO powder mixture[J]. Scripta Materialia . 2004 (7)
6Dae-Gun Kim,Gil-Su Kim,Sung-Tag Oh,Young Do Kim.The initial stage of sintering for the W–Cu nanocomposite powder prepared from W–CuO mixture[J]. Materials Letters . 2003 (5)
7Lee G G,Ha G H,Kim B K.Synthesis of high density ultrafine W/Cu composite alloy by mechano-thermo chemical process. Powder Metallurgy . 2000
1原涛,赵跃文.水热-共还原法制备电气用W/Cu复合粉末的组织和侵蚀性能研究[J].热加工工艺,2018,47(24):109-111.
2万成,李继文,王展,马窦琴,魏世忠,张国赏,徐流杰.高致密细晶W-25Cu触头材料的电接触性能[J].中国有色金属学报,2017,27(3):504-513. 被引量：11
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3李志国,周晓龙,胡日茗,于杰,刘满门.复相增强AgMeO电触头材料的研究进展[J].材料导报,2018,32(A01):81-85. 被引量：6
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5张晓辉,田保红,刘勇,张毅,宋克兴,李全安.真空热压烧结-内氧化法制备Al2O3-Cu/（W,Cr）触头材料的电接触性能[J].中国有色金属学报,2019,29(6):1242-1249. 被引量：4
6薛慧慧,田保红,张晓辉,刘勇,张毅.Al2O3-Cu/25W10Mo4Cr复合材料的电接触行为[J].材料热处理学报,2020,41(2):1-7. 被引量：1
7陈忠华,杨泽斌,张海洲,时光.波动载荷和电流作用下的弓网摩擦力模型研究[J].高压电器,2020,56(3):176-181.
8魏国青,赵军富,李志刚,吴志.真空烧结制备电触头Cu-W/Al2O3合金组织和侵蚀性能分析[J].真空科学与技术学报,2020,40(9):887-890. 被引量：2
9邓朝勇,张红波,尹健,熊翔,王培,孙淼,吴晓光,李万千.压力−速度因素对C_(f)/PF-Cu复合材料载流摩擦磨损性能的影响[J].中国有色金属学报,2021,31(3):682-690. 被引量：2
10韦经强,黄玲,张旭光,何玉莲.影响直压乳糖的可压性因素分析[J].食品工业,2021,42(9):163-166.
1李朝建,黄可龙,全玉,张学英,赵学辉.pH值对水热法制备ZnGa_2O_4粉体的影响[J].功能材料与器件学报,2006,12(5):456-460. 被引量：2
2葛毅成,彭可,杨琳,冉丽萍,易茂中,李文军,彭芬.C/C-Cu复合材料表面等离子喷涂钨涂层[J].粉末冶金材料科学与工程,2010,15(2):136-140. 被引量：13
3梁科,张华东,秦文峰.碳纤维复合材料金属铜涂层的制备及其导电性能研究[J].玻璃钢／复合材料,2016(5):61-64. 被引量：4
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5侯健,徐景坤,张书圣,张睿,聂广明,蒲守智.以十二烷基麦芽糖为模板合成导电聚苯胺纳米线[J].化学研究,2005,16(2):52-55. 被引量：1
6刘润平,黄可龙,刘素琴,唐金春.多壁碳纳米管在精氨酸溶液中分散性的pH敏感性[J].化学学报,2009,67(1):83-87. 被引量：3
7毛胜春,牛建华,徐友龙,孙孝飞,路晓菊.不同pH值条件下多壁碳纳米管悬浮液光限幅特性的研究[J].材料导报,2009,23(20):20-22. 被引量：4
8林嵩,徐宏,古宏晨.纳米TiO_2表面电位特性的研究[J].材料科学与工程学报,2004,22(4):544-546. 被引量：15
9贾恒,张钧.(Ti,Al,Zr)N多元硬质膜的退除方法与工艺研究[J].真空科学与技术学报,2012,32(12):1067-1073. 被引量：2
10张姝娟,李洁,李文章,陈启元.pH值对聚合物前驱体法制备WO_3薄膜光电性质的影响[J].材料导报,2011,25(14):20-23.
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DOI：
Chinese Library Classification Number:TB332[一般工业技术—材料科学与工程]
Citation Information:
W-Cu composite powders were prepared by hydrothermal synthesis with sodium tungstate and cupric nitrate as the raw materials.The recovery rate was calculated of W-Cu composite powders prepared at different pH.Preparation process of the precursor of W-Cu composite powders was analyzed based on thermodynamics.Phase composition,morphology and microstructure of the prepared W-Cu composite powders were characterized by XRD,SEM,EDS and TEM.The results show that the recovery rates of W and Cu ions are different at different solution concentration and pH value.When sodium tungstate concentration is 0.6mol/L,cupric nitrate concentration is 0.578 6 mol/L and the pH value is 5.5,W and Cu ions precipitate in the form of CuWO4·2H2O,and their recovery rates are more than 99%.The product of hydrothermal synthesis has good dispersivity and uniform particle size of 15~20nm.After calcined at 500℃and reduced with hydrogen at 800℃for 60 min,W-Cu composite powders are obtained with well-distributed W and Cu elements,subglobose microstructure of W-covered Cu and particle size of 100~200nm.
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| GB/T 7714-2015 | [1] WAN Cheng, LI Ji-wen, MA Dou-qin, et al. Thermodynamic Analysis for Hydrothermal Synthesis of W-25Cu Composite Powders[J]. Rare Metals and Cemented Carbides, 2015(5): 16-21 29. |
| MLA | [1] WAN Cheng, et al., "Thermodynamic Analysis for Hydrothermal Synthesis of W-25Cu Composite Powders." Rare Metals and Cemented Carbides, no. 5, 2015, pp. 16-21 29. |
| APA | [1] WAN Cheng, LI Ji-wen, MA Dou-qin, WANG Zhan, & ZHANG Hui-jie. (2015). Thermodynamic Analysis for Hydrothermal Synthesis of W-25Cu Composite Powders. Rare Metals and Cemented Carbides(5), 16-21 29. |
| IEEE | [1] WAN Cheng, LI Ji-wen, MA Dou-qin, WANG Zhan, and ZHANG Hui-jie, "Thermodynamic Analysis for Hydrothermal Synthesis of W-25Cu Composite Powders," Rare Metals and Cemented Carbides, no. 5, pp. 16-21 29, 2015. keywords: {W-Cu composite powder;hydrothermal synthesis;recovery rate;thermodynamic analysis} |