Fabrication of high thermal conductive Al-cBN ceramic sinters by high temperature high pressure method

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	Fabrication of high thermal conductive Al-cBN ceramic sinters by high temperature high pressure method
	Wang, P. F.1,2; Li, Zh. H.1; Zhu, Y. M.1
刊名	solid state sciences
	2011-05-01
卷号	13 期号:5 页码:1041-1046
关键词	High temperature high pressure sintering Cubic boron nitride Thermal conductivity Heat sink materials
ISSN号	1293-2558
英文摘要	al-cbn ceramic sinters were fabricated by sintering micro-powder mixture of al and cbn under high temperature and high pressure condition. differential scanning calorimetry (dsc), x-ray diffraction (xrd), scanning electronic microscopy (sem) and energy-dispersive x-ray spectroscopy (eds) elemental mapping analyses and laser flashing thermal conductivity measurements were performed to investigate the sintering properties and thermal conductivity of the al-cbn ceramic sinters. xrd analysis revealed these al cbn ceramic sinters were composed of a large portion of cbn and of a small portion of ain, and very little amount of aib(12) and hbn. formation of boundary phase resulted in the rapid densification of the sinters, as well as the increase of their relative density with increasing al additions. the al-cbn ceramic sinters have a maximum thermal conductivity of about 1.94 w/cm k at room temperature and a much higher value of about 2.04 w/cm k at 200 degrees c. their high thermal conductivity over that of ain-hbn composites promise al-cbn ceramic sinters favorite candidates as high efficiency heat sink materials for wide band gap semiconductors. (c) 2011 elsevier masson sas. all rights reserved.
学科主题	chemistry ; inorganic & nuclear ; chemistry ; physical ; physics ; condensed matter
WOS标题词	science & technology ; physical sciences
类目[WOS]	chemistry, inorganic & nuclear ; chemistry, physical ; physics, condensed matter
研究领域[WOS]	chemistry ; physics
关键词[WOS]	cubic boron-nitride ; aluminum nitride ; composites ; bn ; scattering ; infiltration ; crystal ; powders
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000291081900036
公开日期	2011-10-08
内容类型	期刊论文
源URL	[http://ir.opt.ac.cn/handle/181661/11603]
专题	西安光学精密机械研究所_研究生部
作者单位	1.Tianjin Univ, Sch Mat Sci & Engn, Minist Educ, Key Lab Adv Ceram & Machining Technol, Tianjin 300072, Peoples R China 2.Chinese Acad Sci, Xian Inst Opt & Proc Mech, State Key Lab Transient Opt & Photon, Xian 710119, Shanxi, Peoples R China
推荐引用方式 GB/T 7714	Wang, P. F.,Li, Zh. H.,Zhu, Y. M.. Fabrication of high thermal conductive Al-cBN ceramic sinters by high temperature high pressure method[J]. solid state sciences,2011,13(5):1041-1046.
APA	Wang, P. F.,Li, Zh. H.,&Zhu, Y. M..(2011).Fabrication of high thermal conductive Al-cBN ceramic sinters by high temperature high pressure method.solid state sciences,13(5),1041-1046.
MLA	Wang, P. F.,et al."Fabrication of high thermal conductive Al-cBN ceramic sinters by high temperature high pressure method".solid state sciences 13.5(2011):1041-1046.