| 激光光热散射技术测量不透明材料的热扩散率 |
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| 引用本文： | 王培吉,范素华.激光光热散射技术测量不透明材料的热扩散率[J].中国激光,1998,25(8):707-710. |
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| 作者姓名： | 王培吉 范素华 |
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| 作者单位： | 山东建材学院物理系!济南250022 |
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| 摘 要： | 报道了一种用激光光热散射技术测量不透明材料热扩散率的方法。根据在不同的频率下测得的试样光热信号的振幅和相位 ,由振幅和相位分别对频率进行非线性拟合 ,由此可得材料的热扩散率 ,并对不同烧结温度下的纳米氧化铝进行了测量。
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| 关 键 词： | 激光光热散射技术 纳米材料 热扩散率 |
| 收稿时间： | 1997/12/23 |
Laser Photothermal Scattering Technique to Measure Thermal Diffusivity of Opaque Materials |
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| Wang Peiji,Fan Suhua.Laser Photothermal Scattering Technique to Measure Thermal Diffusivity of Opaque Materials[J].Chinese Journal of Lasers,1998,25(8):707-710. |
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| Authors: | Wang Peiji Fan Suhua |
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| Abstract: | A method to measure thermal diffusivity of opaque materials by a laser photothermal scattering technique is introduced in this paper. The thermal diffusivity can be fitted by amplitude and phase of the sample photothermal signal at different frequencies and the thermal diffusivity of nanometer Al 2O 3 at different sintering temperatures is measured by the method. |
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| Keywords: | laser photothermal scattering technique nanometer Al 2O 3 thermal diffusivity |
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