Effect of mechanical activation on thermal explosion in Ni-Al mixtures

被引：0
作者：
D. Yu. Kovalev
N. A. Kochetov
V. I. Ponomarev
A. S. Mukasyan
机构：
[1] Russian Academy of Sciences,Institute of Structural Macrokinetics and Materials Science
[2] University of Notre Dame,Department of Chemical and Biomolecular Engineering
来源：
International Journal of Self-Propagating High-Temperature Synthesis | 2010年 / 19卷 / 2期
关键词：
SHS; thermal explosion; Ni-Al system;
D O I：
10.3103/S106138621002007X
中图分类号：
学科分类号：
摘要：
The effect of mechanical activation (MA) on thermal explosion in equimolar Ni-Al mixtures was studied by time-resolved XRD. MA was also found to increase the burning velocity and decrease the ignition temperature. Thermal explosion in non-activated Ni-Al mixtures was found to proceed via formation of liquid (melted) intermediate products, while that in the activated mixtures gave no liquid intermediates.
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页码：120 / 125
页数：5
相关论文
共 36 条
[1]  
Merzhanov A.G.(1972)Self-Propagating High-Temperature Synthesis of Inorganic Compounds Dokl. Akad. Nauk SSSR 204 366-369
[2]  
Borovinskaya I.P.(2008)Self-Propagating High-Temperature Synthesis in Mechanoactivated Compositions Khim. Fiz. 27 73-78
[3]  
Korchagin M.A.(2003)Solid-State Combustion in Mechanically Activated SHS Systems: II. Effect of Mechanoactivation Schedule on Process Parameters and Product Composition Fiz. Goreniya Vzryva 39 68-68
[4]  
Lyakhov N.Z.(1981)Dynamics of Phase Formation during Synthesis of NiAl Dokl. Akad. Nauk SSSR 259 1127-1129
[5]  
Korchagin M.A.(1990)Time-Resolved X-Ray Diffraction Study of Solid Combustion Reactions Science 249 1406-1409
[6]  
Grigor’eva T.F.(2007)Al-Ni Intermetallics Obtained by SHS: A Time-Resolved X-Ray Diffraction Study Intermetallics 15 1163-1171
[7]  
Bokhonov B.B.(1994)Mechanism of Self-Propagating High-Temperature Synthesis of Nickel Aluminides: 2. Crystal Structure Formation in Combustion Wave Int. J. SHS 3 239-251
[8]  
Boldyrev V.V.(1995)Laboratory-Scale Apparatus for Time-Resolved X-Ray Diffraction Studies Kristallografiya 40 14-17
[9]  
Aleksandrov V.V.(2007)Dynamics of Phase Formation during Combustion of Zr and Hf in Air Int. J. SHS 16 169-174
[10]  
Wong J.(1996)Microstructure of Combustion Front in Heterogeneous Gasless Media Fiz. Goreniya Vzryva 32 68-81
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