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Nucleation mechanism of nano-sized NaZn13-type and alpha-(Fe,Si) phases in La-Fe-Si alloys during rapid solidification
文献类型:期刊论文
作者:Hou, Xue-Ling[1]  Xue, Yun[2]  Liu, Chun-Yu[3]  Xu, Hui[4]  Han, Ning[5]  Ma, Chun-Wei[6]  Phan, Manh-Huong[7]  
机构:[1]Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China.,Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China.;
[2]Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China.,Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China.;
[3]Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China.,Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China.;
[4]Shanghai Univ, Lab Microstruct, Shanghai 200444, Peoples R China.,Shanghai Univ, Sch Mat Sci & Engn, Shanghai 200072, Peoples R China.;
[5]Shanghai Univ Engn Sci, Shanghai 201620, Peoples R China.;
[6]Shanghai Univ Engn Sci, Shanghai 201620, Peoples R China.;
[7]Univ S Florida, Dept Phys, Tampa, FL 33620 USA.;
通讯作者:Hou, Xue-Ling
年:2015
期刊名称:NANOSCALE RESEARCH LETTERS影响因子和分区
卷:10
期:1
页码范围:1-6
增刊:正刊
收录情况:SCI(E)(WOS:000352283000001)  EI(20151300696670)  PubMed(25852432)  
所属部门:材料科学与工程学院
语言:外文
ISSN:1556-276X
被引频次:3
人气指数:64
浏览次数:64
基金:Instrumental Analysis & Research Center, Shanghai University; Shanghai Education Commission Project [12ZZ085]; Shanghai Natural Science Foundation of China [13ZR1415300]; Shanghai leading Academic Discipline Project [S30107]; Florida Cluster for Advanced Smart Sensor Technologies (FCASST)
关键词:La(Fe,Si)(13) ribbons; Nucleation mechanism; Nanostructure; Rapid solidification
摘要:
The nucleation mechanism involving rapid solidification of undercooled La-Fe-Si melts has been studied experimentally and theoretically. The classical nucleation theory-based simulations show a competitive nucleation process between the α-(Fe,Si) phase (size approximately 10 to 30?nm) and the cubic NaZn13-type phase (hereinafter 1:13 phase, size approximately 200 to 400?nm) during rapid solidification, and that the undercooled temperature change T plays an important factor in this process. The s ...More
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