| 孔隙分布对陶瓷材料热辐射特性的影响 |
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| 引用本文： | 李东辉,夏新林.孔隙分布对陶瓷材料热辐射特性的影响[J].航空动力学报,2011,26(1):60-64. |
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| 作者姓名： | 李东辉 夏新林 |
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| 作者单位： | 哈尔滨工业大学,能源科学与工程学院,哈尔滨,150001 |
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| 摘 要： | 通过引入吸收性介质内粒子散射Mie理论,结合多弥散粒子系独立散射理论,针对孔隙具有修正Gamma分布规律的多孔陶瓷提出一种计算热辐射特性的方法,以氧化锆陶瓷为例分析了孔隙分布对热辐射特性的影响.结果表明孔隙分布规律和平均孔径对热辐射特性有显著影响.孔径趋于单弥散分布,将使衰减系数、散射反照率、非对称因子等参数减小,而孔...
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| 关 键 词： | 热辐射特性 陶瓷材料 电磁散射 多弥散 Mie理论 吸收介质 |
| 收稿时间： | 2009/12/4 0:00:00 |
| 修稿时间： | 3/2/2010 12:00:00 AM |
Influences of pores distribution on thermal radiation properties of ceramic materials |
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| LI Dong-hui and XIA Xin-lin.Influences of pores distribution on thermal radiation properties of ceramic materials[J].Journal of Aerospace Power,2011,26(1):60-64. |
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| Authors: | LI Dong-hui and XIA Xin-lin |
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| Institution: | LI Dong-hui,XIA Xin-lin(School of Energy Science and Engineering,Harbin Institute of Technology,Harbin 150001,China) |
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| Abstract: | A rigid Mie solution on scattering by a spherical particle immersed in an absorbing medium was introduced.By combining with independent scattering discipline for polydisperse particles,a theoretical method was presented for calculating thermal radiation properties of ceramics with pores in modified Gamma distribution.Influences of pores distribution and mean diameter on thermal radiation properties of a specific Yt stablized zirconium(YSZ) were analyzed.Results show that pores distribution and mean diameter... |
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| Keywords: | thermal radiation property ceramic material electromagnetic scattering polydisperse Mie solution absorbing medium |
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