金属学报  1984, Vol. 20 Issue (6): 458-464

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LaNi_(5-x)Cu_x的还原扩散法合成及性质的研究

郑朝贵;董成;钱久信;叶于浦

北京大学化学系;北京大学化学系;北京大学化学系;北京大学化学系

ON THE SYNTHESIS BY REDUCTION-DIFFUSION AND THE PROPERTIES OF LaNi_(5-x)Cu_x ALLOYS

ZHENG Chaogui; DONG Cheng; QIAN Jiuxin; YE Yupu (Department of Chemistry; Peking University) (Manuscript received 8 September; 1983; revised manuscript 7 February; 1984)

郑朝贵;董成;钱久信;叶于浦. LaNi_(5-x)Cu_x的还原扩散法合成及性质的研究[J]. 金属学报, 1984, 20(6): 458-464.
, , , . ON THE SYNTHESIS BY REDUCTION-DIFFUSION AND THE PROPERTIES OF LaNi_(5-x)Cu_x ALLOYS[J]. Acta Metall Sin, 1984, 20(6): 458-464.

摘要 参考文献 相关文章 Metrics 全文: PDF(450 KB)   摘要: 本文对合成反应中的各种因素(原料配比、粒度、反应温度、反应时间……)的影响进行考察。提出了一个825℃直接利用Cu,Ni粉还原扩散制备具有CaCu_5结构的LaNi_(5-x)Cu_x系列样品的方法。参考类似条件,方便地合成LaNi_4Zn,LaNi_(3.75)Al_(1.25)和(La_(0.8)Ti_(0.2))Ni_5等有关化合物。并研究了该系列化合物样品在各种介质中的稳定性及常温、常压下对合成氨反应的催化能力的差别。 Abstract：An investigation was made of the technological process for synthesis of LaNi_(5-x)Cu_x (x=0—5) alloys by reduction-diffusion, especially detailed the proportion and grain size of starting materials, the temperature and time of reaction, etc. A favourable process was developed that the samples of LaNi_(5-x)Cu_x alloy series of the CaCu_5 structure may be prepared by direct synthesis of Cu and Ni powders under reduction-diffusion at 825℃. Referred to the similar process, the related intermetallic compounds LaNi_4Zn, LaNi_(3.75)Al_(1.25) and (La_(0.8)Ti_(0.2))Ni_5 were synthesized conveniently. The stability of LaNi_(5-x)Cu_x (x=0—5) alloy specimens immersed in acids, alkalies and other various media, as well as their catalytic activity in ammonia synthesis under normal temperature and pressure were also studied and compared individually. 收稿日期: 1984-06-18      服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 郑朝贵 董成 钱久信 叶于浦 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1984/V20/I6/458 1 Dwight, A. E., The Rare Earth in Modern Science and Technology, Proc. 13th Rare Earth Res. Conf. (1977) , Eds. Macarthy, G. J.; Rtyne, J. J., Plenum, New York, 1978, p. 325． 2 Van Mal, H. H., J. Less-Common Met., 35 (1974) , 65． 3 Shinar, J.; Shaltiel, D., J. Less-Common Met., 60 (1978) , 209． 4 申沣文;汪根时;张允什;宋德英;臧弢石;余素清,高等学校化学学报,1(1980) ,№2,109． 5 顾函珍;叶于浦,科学通报,12(1983) ,735． 6 钱久信;郑朝贵;张吉伟;张菊梅,全国第一届贮氢会议论文,1981． 7 #12．k No related articles found! Viewed Full text Abstract Cited   Shared      Discussed