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| 1 | CATHODIC PROCESS AND WEAR RESISTANCE OF ELECTRO-DEPOSITED RE-Ni-W-P-SiC COMPOSITE COATING显示文摘Cathodic deposition current density of the composite coatings increases when SiC par-ticles and rare earth (RE) were added in the bath, which is profitable for Ni- W-P alloyto deposit in the cathod, forming Ni-W-P-SiC and RE-Ni-W-P-SiC composite coat-ings. On the contrary, the addition of PTFE in the bath decreases cathodic depositioncurrent density of the coatings. The current density increases a little when the amountof RE is 7-9g/l; however, the current density increases greatly when the amount ofRE is increased to 11-13g/l. But if the amount of RE is raised further, the currentdensity decreases. Hardness and wear resistance of RE-Ni-W-P-SiC composite coat-ing have been studied, and the results show that the hardness and wear resistance ofRE-Ni-W-P-SiC composite coating increase with increasing heat treatment tempera-ture, which reach peak values at 400℃; while the hardness and wear resistance of thecoating decrease with the rise of heat treated temperature continuously. | Z.C.Guo,X.Y.Zhu,R.D.Xu and X.W.YangFaculty of Material and Metallurgy Engineering, Kunming University of Science and Technology, Kunming650093, ChinaManuscript received 26 December 2001 in revised form 23 April 2002 | 2002 | Acta Metallurgica Sinica(English Letters)2002，15，4： | 16 |
| 2 | 二氧化硫氧化制硫酸用钒催化剂的研究进展显示文摘钒催化剂是采用接触法生产硫酸工艺过程中至关重要的材料之一,随着硫酸工业技术的快速发展,我国每年对钒催化剂的需求量日益增加。经过七十多年的发展,国产钒催化剂已经取得了丰硕的成果。但在抗粉化性能、使用寿命和催化活性方面与国外催化剂相比还有一定的差距。本文通过查阅国内外钒催化剂相关的文献资料,结合国产钒催化剂的现状,从催化剂的作用机理、催化剂的失活机理、影响催化剂性能的因素三个方面做简要综述。 | 田坤 杨胜飞 吴晓荣 欧阳建梅 阳新锋 | 2020 | 广州化工2020，48，14： | 5 |
| 3 | 直流电场对Al-5Fe基合金组织和性能的影响显示文摘研究了不同电流强度的直流电场对Al-5Fe基合金组织和性能的影响。结果表明:在直流电场作用下,Al-5Fe基合金的凝固组织经历了细化过程,随着电流强度的增加,组织细化显著,初生富铁相的形状由粗大的针片状转变为细小的针片状、花朵状、块状,合金的硬度、耐磨性逐渐增加,其中电流强度为4 A时效果最明显。 | 付大军 黄立国 李爽 | 2013 | 兵器材料科学与工程2013，36，5： | 1 |
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