MG2SI

作品数:301被引量:911H指数:15
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相关领域:一般工业技术金属学及工艺更多>>
相关作者:谢泉李英民肖清泉任玉艳刘政更多>>
相关机构:贵州大学沈阳工业大学太原理工大学辽宁工业大学更多>>
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AZ31B镁合金板材轧制边裂与温度场研究被引量:17
《稀有金属材料与工程》2014年第S1期387-392,共6页马立峰 庞志宁 黄庆学 马自勇 林金保 李志刚 
国家"973"计划(2011CB612204);国家自然科学基金(51105264;51204117)
在轧制温度为350℃,轧制速度为0.5 m/s,压下量分别为20%,30%,40%的不同工艺条件下,对规格为150mm×150 mm×7 mm的AZ31B镁合金铸轧板材进行了轧制实验和数值模拟研究。对镁合金板材的表面温度场和裂纹应力状态进行了分析,并建立了其表...
关键词:铸轧镁合金 边裂 温度分布 MgZn2 MG2SI 
Microstructure-based analysis of fatigue behaviour of Al-Si-Mg alloy被引量:1
《Transactions of Nonferrous Metals Society of China》2011年第3期443-448,共6页蒋小松 何国求 刘兵 范宋杰 朱旻昊 
Project (2007CB714704) supported by the National Basic Research Program of China;Project (50771073) supported by the National Natural Science Foundation of China
The effects of microstructural characteristics on the fatigue behavior in Al-Si-Mg alloy were investigated. The dislocation substructures of Al-Si-Mg alloy were observed by transmission electron microscopy (TEM). Di...
关键词:Al-Si-Mg alloy DISLOCATION MG2SI secondary silicon phase 
First-principles calculations of electronic structure and optical properties of strained Mg_2Si被引量:4
《Chinese Science Bulletin》2010年第21期2236-2242,共7页CHEN Qian XIE Quan ZHAO FengJuan CUI DongMeng LI XuZhen 
supported by the National Natural Science Foundation of China(60566001,60766002);the Major International Joint Research Program from the Ministry of Science and Technology of China (2008DFA52210);the Project of Guizhou Province Information Industry Department(0831);the Undergraduate Carve Out Project of Bureau of Guiyang Science and Technology(6-5)
A detailed theoretical study on structural,electronic and optical properties of Mg2Si under the isotropic lattice deformation was performed based on the first-principles pseudopotential method.The results show that th...
关键词:第一原理赝势法 MG2SI 电子结构 光学性质 晶格变形 计算 各向同性 静态介电常数 
原位合成Mg_2Si/Mg-2Al-Zn-2Gd复合材料的微观组织与断裂行为被引量:5
《中国有色金属学报》2010年第6期1075-1082,共8页王旭东 杜文博 王朝辉 李淑波 
国家重大基础研究发展计划资助项目(2007CB613706);北京市2009创新人才建设计划资助项目(PHR200906101);北京工业大学博士研究生创新计划资助项目(bcx-2009-072)
采用多次循环塑性变形-原位反应方法制备Mg2Si/Mg-2Al-Zn-2Gd复合材料。采用XRD、SEM和TEM对复合材料的成分及微观组织进行分析和观察。结果表明:多次循环塑性变形过程对镁合金基体组织和原位合成的Mg2Si第二相粒子均有细化和均化作用;...
关键词:Mg2Si/Mg-2Al-Zn-2Gd复合材料 断裂行为 多次循环塑性变形 原位合成 MG2SI 
Mg_2Si的电子结构和热电输运性质的理论研究被引量:7
《物理学报》2010年第6期4123-4129,共7页彭华 王春雷 李吉超 王洪超 王美晓 
国家重点基础研究发展计划(批准号:2007CB607504)资助的课题~~
利用全势线性缀加平面波法,对Mg2Si的几何结构和电子结构进行了计算,得到了稳定的晶格参数以及能带和电子态密度.能带结构表明,Mg2Si为间接带隙半导体,禁带宽度为0.20eV.在此基础上利用玻尔兹曼输运理论和刚性带近似计算了材料的电导率...
关键词:MG2SI 全势线性缀加平面波法 热电输运性质 
Nanostructuring and Thermoelectric Properties of Bulk N-type Mg_2Si
《Journal of Wuhan University of Technology(Materials Science)》2009年第6期912-916,共5页杨梅君 
Funded by the National Basic Research Program of China (2007CB607501)
Preparation and thermoelectric properties of nanostructured n-type Mg2Si bulk materials were reported. Nanosized Mg2Si powder was obtained by mechanical milling of the microsized Mg2Si powder prepared by solid-state r...
关键词:semiconductor thermoelectric effects MG2SI NANOSTRUCTURING 
Thermal stability of Mg_2 Si epitaxial film formed on Si(111) substrate by solid phase reaction被引量:2
《Chinese Physics B》2009年第7期3079-3083,共5页王喜娜 王勇 邹进 张天冲 梅增霞 郭阳 薛其坤 杜小龙 张晓娜 韩晓东 张泽 
Project supported by the National Natural Science Foundation (Grant Nos 50532090,60606023 and 60621091);the Ministry of Science and Technology of China (Grant Nos 2002CB613502 and 2007CB936203);Australia Research Council
A single crystalline Mg2Si film was formed by solid phase reaction (SPR) of a Si(111) substrate with an Mg overlayer capped with an oxide layer(s),which was enhanced by post annealing from room temperature to 10...
关键词:MG2SI solid phase reaction thermal stability 
Comparison of Sb and Sr on modification and refinement of Mg_2Si phase in AZ61-0.7Si magnesium alloy被引量:11
《中国有色金属学会会刊:英文版》2009年第2期287-292,共6页杨明波 潘复生 沈佳 白亮 
Project(50725413) supported by the National Science Fund for Distinguished Young Scholar in China;Project(2007CB613704) supported by the National Basic Research Program of China;Projects(2006AA4012-9-6, 2007BB4400) supported by the Chongqing Science and Technology Commission of China
The effects of Sb and Sr on the modification and refinement of Mg2Si phase in an AZ61-0.7Si magnesium alloy were investigated and compared. The results indicate that the difference of Sb and Sr in the modification and...
关键词:MG2SI 镁合金 修改 SB 质量分数 蠕变性能 晶化温度 多边形 
La掺杂n型Mg_2Si基半导体的热电性能研究被引量:5
《功能材料》2008年第12期2008-2010,2014,共4页张倩 朱铁军 殷浩 赵新兵 
国家重点基础研究发展计划(973计划)资助项目(2007CB607502);国家自然科学基金资助项目(50731006;50522203)
采用感应熔炼然后热压的方法制备了La掺杂Mg2Si基热电材料Mg2-xLaxSi(x=0、0.002、0.005、0.010、0.015)。La在Mg2Si中占Mg位,当x≥0.005时,出现第二相LaMg。性能测试表明,Mg2-xLaxSi的导电类型为n型,Seebeck系数的绝对值随La含量的增...
关键词:热电材料 MG2SI 掺杂 La 
Synthesis and Sintering of Mg_2Si Thermoelectric Generator by Spark Plasma Sintering被引量:2
《Journal of Wuhan University of Technology(Materials Science)》2008年第6期870-873,共4页杨梅君 
Funded by the National Basic Research Program of China (2007CB607501)
Raw Mg,Si powder were used to fabricate Mg2Si bulk thermoelectric generator by spark plasma sintering (SPS).The optimum parameters to synthesize pure Mg2Si powder were found to be 823 K,0 MPa,10 min with excessive c...
关键词:MG2SI spark plasma sintering(SPS) 
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