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3篇 您的检索式:作者名="Raghavan Gopalan"
    题名 作者 年代 出处 被引量
1Correlation of microstructure and magnetic properties in Sm(Co_(bal)Fe_(0.1)Cu_(0.1)Zr_(0.033))_(6.93) magnets solution-treated at different temperatures显示文摘The correlation of microstructure and magnetic properties in Sm(Co_(bal)Fe_(0.1)Cu_(0.1)Zr_(0.033))_(6.93) magnets solution-treated at different temperatures was systematically investigated. It is found that the magnets solution-treated at 1219℃ possess a single 1:7 H phase, exhibiting the homogeneous cellular structure during further aging treatment, leading to the optimum magnetic properties. However, for the magnets solution-treated at 1211 and 1223℃,2:17 H or 1:5 H secondary phase will also form besides 1:7 H main phase, which cannot transform into cellular structure,thus deteriorating the magnetic properties greatly. The irreversible magnetization investigations with recoil loops also propose a non-uniform pinning in the magnets induced by the secondary precipitates. At proper solution temperature, Zr is supposed to occupy the Fe-Fe dumbbell sites in the form of Zr-vacancy pairs, leading to the minimum c/a ratio and thus stabilizing the 1:7 H phase. Finally,Sm(Co_(bal)Fe_(0.1)Cu_(0.1)Zr_(0.033))_(6.93) magnets with the maximum energy product and intrinsic coercivity at 550℃ up to 60.73 kJ·m^(-3) and 553.88 kA·m^(-1) were prepared by powder metallurgy method.Cheng Xu Hui Wang Tian-Li Zhang Alexander Popov Raghavan Gopalan Cheng-Bao Jiang 2019Rare Metals2019,38,1:6
2Formation of zinc ferrite by solid-state reaction and its characterization by XRD and XPS显示文摘S. Bera A. A. M. Prince S. Velmurugan P. S. Raghavan R. Gopalan G. Panneerselvam S. V. Narasimhan 2001Journal of Materials Science2001,,22:1
3Microstructure and Mechanical Properties of Pulse Laser Welded Stainless Steel and Aluminum Alloys for Lithium-Ion Cell Casings显示文摘Vallabha Rao Rikka Sumit Ranjan Sahu Rajappa Tadepalli Ravi Bathe Thyagarajan Mohan Raju Prakash Gade Padmanabham Raghavan Gopalan 2016材料科学与工程(中英文B版)2016,6,5:0
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