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J. Cent. South Univ. Technol. (2009) 16: 0708-0712 DOI: 10.1007/s11771-009-0117-0 Characterization of ultrafine copper powder prepared by novel electrodeposition method HE Wei(贺 玮)1, 2, DUAN...; Abstract: The auto-evolved ultrafine copper powders were synthesized via a novel electrodeposition route performed by ultrasonic......
J. Cent. South Univ. (2018) 25: 2143-2149 DOI: https://doi.org/10.1007/s11771-018-3903-8 Influence of porogen type and copper powder morphology on property of sintering copper porous materials LIU..., part of Springer Nature 2018 Abstract: Copper porous materials have been manufactured by the method of powder metallurgy. Electrolytic copper powders and atomized copper powders are used as matrix......
Bioleaching of low-grade copper sulphides YIN Sheng-hua(尹升华)1, WU Ai-xiang(吴爱祥)1, QIU Guan-zhou(邱冠周)2 1. School of Civil and Environment Engineering, University of Science and Technology Beijing...-grade copper sulphides under the condition of preferential solution flow was investigated through experiments. The experiment of bioleaching was conducted within the multifunction autocontrol bioleaching......
Novel technology of purification of copper electrolyte XIAO Fa-xin(肖发新)1, ZHENG Ya-jie(郑雅杰)1, WANG Yong(王 勇)1, 2, XU Wei(许 卫)1, 2, LI Chun-hua(李春华)1, 2, JIAN Hong-sheng(简洪生)1, 2 1. School...: The effects of arsenic with different valence states on the purification of copper electrolyte were studied and a novel technology of purification of copper electrolyte by copper arsenite was proposed......
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金压缩后显微组织不同区域的取样位置 Fig. 1 Viewing area of semi-solid ZCuSn10 copper alloy after deformation 半固态ZCuSn10铜合金压缩变形试样尺寸为d 10 mm×15 mm,采用Gleeble-1500型材料热/力学模拟试验机进行半固态压缩实验.在压缩实验过程中,加热速度为10 ℃/s,但为了避免加热系统的...;Microstructures of ZCuSn10 copper alloy 图3所示为常规铸造ZCuSn10铜合金与SIMA法制备的半固态ZCuSn10铜合金在温度920 ℃,应变0.6,应变速率10 s-1时的压缩真应力-应变曲线.由图3可知,无论是常规铸造的ZCuSn10铜合金压缩试样还是SIMA法制备的半固态ZCuSn10铜合金压缩试样,它们的真应力-应变曲线的变化趋势均是一致的,即在压缩变形初期,应力......
Effect of Shoulder Diameter on the Force Generation, Microstructure and Mechanical Properties of Friction Stir-Brazed Aluminium Alloy and Copper with Ultrahigh Rotation SpeedYang Zhou1,2,Shujin... University of Science and Technology摘 要:Friction stir brazing with ultrahigh rotation speed was applied to 6061 aluminium alloy–pure copper lap joints......
利用废弃银铜合金触点直接制备银铜双金属粉王琪1,娄德大1,周全法1(1.江苏省常州市江苏技术师范学院江苏省贵金属深加工技术及应用重点建设实验室)摘 要:研究了利用废弃银铜合金触点(Ag,Cu,Sn质量分数分别约为30%,60%和2%)直接制备银铜双金属粉的工艺.原料以硝酸溶解后,采用葡萄糖预还原和水合肼二次还原,在聚乙烯吡咯烷酮(PVP)的保护下制得了粒径在1μm左右类球形超细银铜双金属粉和超细铜粉.还原前加入尿素,控制反应温度在60℃温度下,加入抗氧化剂苯并三氮唑,均可防止铜粉的表面氧化,从而获得高质量的银铜......
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Microstructures and properties of Al2O3 dispersion-strengthened copper alloys prepared through different methodsZhi-qiao Yan1,22. State Key Laboratory of Powder Metallurgy, Central South University摘 要:Al2O3 dispersion copper alloy powder was prepared by internal oxidation, and three consolidation methods-high-velocity compaction(HVC), hot pressing(HP......
