Light extinction by pores in AlON ceramics: the transmission properties

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	Light extinction by pores in AlON ceramics: the transmission properties
	Y. Z. Wang; T. C. Lu; L. Gong; J. Q. Qi; J. S. Wen; J. A. Yu; L. Pan; Y. Yu; N. A. Wei
	2010
发表期刊	Journal of Physics D-Applied Physics
ISSN	0022-3727
卷号	43 期号:27
摘要	The transmission properties of aluminium oxynitride (AlON) ceramics were studied. AlON samples with different transmittances were prepared. SEM detected two types of pores with a different range of diameters in the samples; the porosity was obtained by counting the number of pores in a certain area. Mie theory was applied to illuminate the effects of pores on the transmittances. The calculated transmittances were compared with the experiments. The existence of pores with sizes in the 1.1-1.6 mu m range and porosities above 10(-4) accounted for the degradation of the transmittance spectra at 2.5 mu m. Discrepancies of the spectra between the samples were caused mainly by different densities of the A-type pores with sizes above 1 mu m. The concepts of critical size and critical concentration were proposed and were quantitatively characterized by critical curves, which divided the regions of translucency and transparency into three parts: R(1), R(2) and R(3) depending on porosity. New approaches on how to control the pore sizes and porosities quantitatively for transparent ceramics design were presented.
部门归属	[wang, yuezhong; lu, tiecheng; gong, li; qi, jianqi; wen, jinsong; yu, jian; pan, lei; yu, yin; wei, nian] sichuan univ, minist educ, dept phys, chengdu 610064, peoples r china. [wang, yuezhong; lu, tiecheng; gong, li; qi, jianqi; wen, jinsong; yu, jian; pan, lei; yu, yin; wei, nian] sichuan univ, minist educ, key lab radiat phys & technol, chengdu 610064, peoples r china. [lu, tiecheng] chinese acad sci, int ctr mat phys, shenyang 110015, peoples r china.;lu, tc (reprint author), sichuan univ, minist educ, dept phys, chengdu 610064, peoples r china;lutiecheng@scu.edu.cn
关键词	Polycrystalline Materials Mie-scattering Grain-growth Nd-yag Transparent Alumina Spinel Al2o3
URL	查看原文
WOS记录号	WOS:000279003700018
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31552
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. Z. Wang,T. C. Lu,L. Gong,et al. Light extinction by pores in AlON ceramics: the transmission properties[J]. Journal of Physics D-Applied Physics,2010,43(27).
APA	Y. Z. Wang.,T. C. Lu.,L. Gong.,J. Q. Qi.,J. S. Wen.,...&N. A. Wei.(2010).Light extinction by pores in AlON ceramics: the transmission properties.Journal of Physics D-Applied Physics,43(27).
MLA	Y. Z. Wang,et al."Light extinction by pores in AlON ceramics: the transmission properties".Journal of Physics D-Applied Physics 43.27(2010).