Characterization of spark plasma sintered Ag nanopowders

被引：36
|
作者：
Fu, Y. Q. [1 ,2 ]
Shearwood, C. [3 ]
Xu, B. [1 ]
Yu, L. G. [3 ]
Khor, Khiam Aik [3 ]
机构：
[1] Heriot Watt Univ, Dept Mech Engn, Sch Engn & Phys Sci, Edinburgh EH14 4AS, Midlothian, Scotland
[2] Xian Univ Technol, Sch Mat Sci & Engn, Xian 710048, Peoples R China
[3] Nanyang Technol Univ, Sch Mech & Aerosp Engn, Singapore 639798, Singapore
来源：
NANOTECHNOLOGY | 2010年 / 21卷 / 11期
关键词：
STRAIN GRADIENT PLASTICITY; MECHANICAL-PROPERTIES; PILE-UP; INDENTATION; SIZE; NANOPARTICLES; SILVER; NANOINDENTATION; MICROHARDNESS; PARTICLES;
D O I：
10.1088/0957-4484/21/11/115707
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
The low temperature sintering behaviour of nanocrystalline Ag powder (with an average size of 70 nm) was characterized. Using spark plasma sintering (SPS), the Ag nanopowders can be successfully sintered at low pressure for only 5 min without external heating, and the sintering density increases and porosity decreases significantly with increase in the sintering temperature. Nanoindentation has been used to characterize the SPS sintered Ag samples. The mechanisms of the low sintering temperature behaviour of the nano-Ag powder and the nanoscale mechanical performance have been discussed. Compression tests were also used to characterize the mechanical properties of the sintered Ag sample with a maximum strain up to 15%.
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页数：7
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