Densification and mechanical properties of pulsed electric current sintered B4C with in situ synthesized Al3BC obtained by the molten-salt method

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	Densification and mechanical properties of pulsed electric current sintered B4C with in situ synthesized Al3BC obtained by the molten-salt method
	Du, Shiyu; Ren, Donglou; Deng, Qihuang; Wang, Ji; Li, Youbing; Li, Mian; Ran, Songlin; Huang, Qing
刊名	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
	2017
卷号	37 期号:15 页码:4524-4531
ISSN号	0955-2219
英文摘要	The in situ generated ternary compound Al3BC shows good dispersion on the surfaces of B4C particles (10 +/- 0.6 mu m), obtained using the molten-salt method rather than the ball-milling method, which can form a conductive network in the pulse electric current sintering process to improve the sinterability of B4C. The sintering behaviour, microstructure and mechanical properties of compacts were investigated at different sintering temperatures and Al3BC contents. The study found that the relative density, elastic modulus, Vickers hardness, and fracture toughness of samples reached as high as 100%, 495 GPa, 37.0 GPa, and 6.32 MPa m(1/2) at 1700 degrees C, respectively, when the content of Al3BC was 18 wt.%. The crack propagation mode can provide an explanation for the higher toughness than that of pure B4C (3.19 MPa m(0.5)). Additionally, the good dispersion of Al3BC in B4C was found to change the fracture mode from the single transgranular mode to a mixture of intergranular and transgranular modes. The compositions of the compacts were almost pure B4C. (C), 2017 Elsevier Ltd. All rights reserved.
公开日期	2017-12-25
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/13487]
专题	2017专题
推荐引用方式 GB/T 7714	Du, Shiyu,Ren, Donglou,Deng, Qihuang,et al. Densification and mechanical properties of pulsed electric current sintered B4C with in situ synthesized Al3BC obtained by the molten-salt method[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2017,37(15):4524-4531.
APA	Du, Shiyu.,Ren, Donglou.,Deng, Qihuang.,Wang, Ji.,Li, Youbing.,...&Huang, Qing.(2017).Densification and mechanical properties of pulsed electric current sintered B4C with in situ synthesized Al3BC obtained by the molten-salt method.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,37(15),4524-4531.
MLA	Du, Shiyu,et al."Densification and mechanical properties of pulsed electric current sintered B4C with in situ synthesized Al3BC obtained by the molten-salt method".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 37.15(2017):4524-4531.