The synthesis of nanocrystalline nickel boride powders by ball milling of elemental components

被引:26
|
作者
Corrias, A [1 ]
Ennas, G [1 ]
Marongiu, G [1 ]
Musinu, A [1 ]
Paschina, G [1 ]
Zedda, D [1 ]
机构
[1] UNIV CAGLIARI,DIPARTIMENTO SCI CHIM,I-09124 CAGLIARI,ITALY
关键词
synthesis; nickel boride powders; ball milling;
D O I
10.1016/0921-5093(95)09963-8
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Solid state reaction induced by ball milling the elemental components has been investigated on Ni60B40 and Ni80B20 mixtures by means of transmission electron microscopy, X-ray diffraction and differential scanning calorimetry. The time evolution of the reaction is similar in the two samples, although slower in Ni80B20. Reaction begins with the formation of o-Ni3B and of a disordered phase. The final products are nanocrystalline o-Ni3B and unreacted nickel in Ni80B20 and nanocrystalline t-Ni2B in Ni60B40. Different milling conditions, tested on the Ni60B40 sample, do not modify the path but affect the rate of the solid state reaction.
引用
收藏
页码:211 / 216
页数:6
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