共搜索到27959条信息，每页显示10条信息，共2796页。用时：0小时0分0秒498毫秒
Microstructure and mechanical properties of Mg-xLi-3Al-1Ce alloys ZHANG Mi-lin(张密林), WU Rui-zhi(巫瑞智), WANG Tao(王涛), LIU Bin(刘滨), NIU Zhong-yi(牛中毅) Key Laboratory of Superlight Materials...-ray diffractometry. The mechanical properties of these alloys were measured with tensile tester. The results show that, Mg-5Li-3Al-1Ce has a single phase (α) structure, Mg-8Li-3Al-1Ce has a double......
Sendust软磁合金材料磁损耗研究及器件的制备 李永卿1,王群1,李凤辉1,郭红霞1 (1.北京工业大学材料科学与工程学院,北京,100022) 摘要:本文研究了Sendust软磁合金复合材料在动态场和高频下涡流损耗,磁滞损耗等的主要机理,侧重报道Sendust软磁合金材料的磁损耗理论和实验工艺研究相结合所作的工作,并介绍了用于EMI抑制的Sendust软磁复合材料元器件的制作过程,经测试其在频段范围800MHz~1.5GHz内,磁导率虚部平均值为10.4,平均抑制效果(S21)可达11.5dB. 关键词:磁损耗; 软磁合金; 电磁干扰; 涡流损耗; 磁滞损耗; magnetic loss; soft-magnetic alloy; EMI; eddy current losses; hysteretic loss; [全文内容正在添加中] ......
synthesized and the relationship of their morphology and microwave absorbing properties was studied. The electromagnetic parameters of these flower-like Ni were measured with vector network analyzer... 2 mm show excellent absorbing ability. This result is expected to play a guiding role in the preparation of the highly efficient absorber.Key words:nickel; flower-like; microwave absorbing properties......
......
......
Microstructure and properties of modified and conventional 718 alloys LIU Fang (刘 芳)1, 2, SUN Wen-ru(孙文儒)2, DU Jin-hui(杜金辉)3, DONG Jian-xin(董建新)4,GUO Shou-ren(郭守仁)2, YANG Hong-cai(杨洪才)1, HU Zhuang... and mechanical properties of the modified alloy were compared with those of the conventional alloy by SEM and TEM. The precipitation of the grain boundaries of the two alloys is different. The Cr-rich......
Microstructure and mechanical properties of Al2O3/TiAl composite AI Tao-tao(艾桃桃), WANG Fen(王 芬), ZHU Jian-feng(朱建锋) School of Materials Science and Engineering, Shaanxi University.... The effects of Nb2O5 content on the microstructure and mechanical properties of the composites were investigated. The results show that the ultimate phases of the composite consist of TiAl, Ti3Al......
......
was developed by the optimizing ageing process. The experimental results show that there is no difference in microstructures, crystal orientation, magnetic and mechanical properties between the low-temperature... that there was no difference in microstructure, crystal orientation, magnetic and mechanical properties between the low-temperature aged magnets and the two-stage aged ones. Therefore, the optimized low-temperature ageing......
Microstructures and mechanical properties of Mg-2%Zn-0.4%RE alloys LE Qi-chi(乐启炽), ZHANG Zhi-qiang(张志强), SHAO Zhi-wen(邵志文), CUI Jian-zhong(崔建忠), XIE Yi(谢 一) Key Laboratory of Electromagnetic... and mechanical properties of these alloys extruded at 310 ?C were also compared. The results indicate that the trace rare earth Ce, Gd, Y or Nd in the Mg-2%Zn alloy has obviously different grain refinement......
