国家自然科学基金(s50331040)

作品数：8被引量：15H指数：3
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相关期刊：《Chinese Physics B》《Science Bulletin》《Acta Metallurgica Sinica(English Letters)》《Science China(Physics,Mechanics & Astronomy)》更多>>
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Magnetocaloric and Colossal Magnetoresistance Effect in Layered Perovskite La_(1.4) Sr_(1.6)Mn_2O_7被引量：3
《Journal of Materials Science & Technology》2010年第3期234-236,共3页Li'an Han Changle Chen 
supported by the National Natural Science Foundation of China (Nos. 50331040 and 60171043)
Magnetocaloric and colossal magnetoresistance effects of the layered perovskite La 1.4 Sr 1.6 Mn 2 O 7 compound have been studied.A broad peak of magnetic entropy change （-△S M） is found above the Curie temperature...
关键词：Magnetocaloric effect Layered perovskite Colossal magnetoresistance 
Periodical oscillating interface in directional growth under shear flow被引量：1
《Chinese Science Bulletin》2009年第23期4432-4437,共6页WANG JianYuan CHEN ChangLe ZHAI Wei JIN KeXin 
Supported by the National Natural Science Foundation of China (Grant Nos. 50331040 and 50702046);Science-Technology Innovation Foundation of Northwestern Polytechnical University (Grant No.2008KJ02031)
Liquid-solid interface morphological evolution of SCN-2wt%H2O alloy was investigated in the presence of shear flow. It has been found that shear flow strikingly enhances the stability of planar interface at lower pull...
关键词：周期性振荡 液固界面 剪切流 定向生长 界面稳定性 形态演变 增长模式 提拉速度 
The effect of the shear flow on directional solidification of SCN-3wt% Salol alloy被引量：1
《Science China(Physics,Mechanics & Astronomy)》2009年第5期742-746,共5页WANG JianYuan CHEN ChangLe WANG KangNing JIN KeXin 
Supported by the National Natural Science Foundation of China(Grant Nos.50331040 and 50702046)
The directional solidification process of SCN-3wt%Salol transparent alloy is investigated in the presence of the shear flow at the liquid-solid interface.It is found that the shear flow induces a stabilizing effect on...
关键词：shear flow OSCILLATING growth pattern directional SOLIDIFICATION MORPHOLOGICAL instability 
Solute distribution in KNbO 3 melt-solution and its effect on dendrite growth during rapid solidification
《Chinese Physics B》2009年第2期699-703,共5页潘秀红 金蔚青 刘岩 艾飞 
supported by the National Natural Science Foundation of China (Grant Nos 50331040 and 50802105);the Innovation Funds from Shanghai Institute of Ceramics, Chinese Academy of Sciences (Grant No SCX0623)
This paper reports that the rapid solidification of mixed Li2B4O7 and KNbO3 melted in a Pt loop heater has been performed experimentally by the method of quenching, and various morphologies of KNbO3 crystals have been...
关键词：rapid solidification KNbO3 melt-solution solute distribution dendrite growth 
Effect of frequency and intensity of rotating magneticfield on the microstructures of Pb-Sn alloys被引量：1
《Chinese Science Bulletin》2008年第17期2575-2581,共7页CHEN Zhao CHEN ChangLe WEN XiaoLi ZHU JianHua GAO WenShuai 
the National Natural Science Foundation of China (Grant Nos. 50331040 and 60171034)
The solidification microstructures of Pb-45% Sn hypoeutectic and Pb-85%Sn hypereutectic alloys were studied in rotating magnetic field (RMF). A transition of primary phase from dendrite to spherical growth was caused ...
关键词：铅锡合金 旋转磁场 磁场强度 磁场频率 微观结构 
NUMERICAL SIMULATION OF SUCCINONITRITE DENDRITIC GROWTH IN A FORCED FLOW被引量：6
《Acta Metallurgica Sinica(English Letters)》2008年第6期444-450,共7页Z. Chen C.L. Chen L.M. Hao 
supported by the Major Program of the National Natural Science Foundation of China (Nos.50331040 and 60171034).
Numerical simulation based on phase field method is performed to describe solidification process of pure material in a free or forced flow. The evolution of the interface is showed, and the effects of mesh grid and fl...
关键词：Phase field method Forced flow DENDRITIC Succinonitrite Tip velocity 
Effect of gravity convection on interface morphology during solidification
《Science China(Physics,Mechanics & Astronomy)》2007年第4期531-538,共8页DUAN MengMeng CHEN ChangLe LI ZhanYao JIN QuanWei 
the National Natural Science Foundation of China (Grant Nos. 50331040 and 60171043)
An experimental apparatus consisting of a crystal growth room and a crystal growth observation system was developed for the study of the effect of the gravity convection perpendicular to the growth direction on the gr...
关键词：GRAVITY CONVECTION SOLIDIFICATION INTERFACE MORPHOLOGY model ALLOY 
Effect of rotating magnetic field on the solidification microstructures of Pb-Sn alloys被引量：4
《Science China(Technological Sciences)》2006年第3期274-282,共9页MENG Xiaohua CHEN Changle HONG Zhenyu WANG Jianyuan 
supported by the National Natural Science Foundation of China(Grant Nos.50331040 and 60171034).
The influence of the rotating magnetic field (RMF) on the solidification process of Pb-Sn binary alloys is studied by comparing the solidification microstructures under the common condition; RMF condition. It is found...
关键词：ROTATING magnetic field  macrosegregation  DENDRITE fragmentation  MELT flow. 
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