Microstructure and mechanical properties of B4C/6061Al neutron absorber composites prepared by SPS

被引：0
|
作者：
Liu R. [1 ]
Wang W. [1 ]
Chen H. [1 ]
Liu F. [1 ]
机构：
[1] Shanxi Key Laboratory of Advanced Magnesium-based Materials, College of Materials Science and Engineering, Taiyuan University of Technology, Taiyuan
来源：
Wang, Wenxian (wwx960@126.com) | 2018年 / Beijing University of Aeronautics and Astronautics (BUAA)卷 / 35期
关键词：
Al; B[!sub]4[!/sub]C; Composites; Fracture mechanism; Interface; Plasma; Spark plasma sintering(SPS);
D O I：
10.13801/j.cnki.fhclxb.20170428.001
中图分类号：
学科分类号：
摘要：
The 10B isotope of B in B4C which has high thermal neutron absorption cross-section is a great neutron absorber. B4C/6061Al composites with the B4C volume fractions of 10%-40% were fabricated by spark plasma sintering(SPS), the microstructure and phase composition of B4C/6061Al neutron absorber composites (B4C/6061Al) were analyzed and the tensile property of B4C/6061Al was measured. The results show that B4C particles distribute relatively homogeneously in 6061Al matrix, plasma generated by microscopic electrical discharge between the particles can improve the interfacial bonding of B4C particle/6061Al matrix, the phases of composites are mainly Al, B4C, AlB2 and Al3BC. With the increase of B4C volume fractions, the relative density of B4C/6061Al decreases and the tensile strength first increases and then decreases, the fracture mechanism is mainly the tear of 6061Al matrix and the B4C particle/6061Al matrix interface. © 2018, Editorial Office of Acta Materiae Compositae Sinica. All right reserved.
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页码：364 / 370
页数：6
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