PHOTOACOUSTIC MEASUREMENT OF THE THERMAL-PROPERTIES OF 2-LAYER SYSTEMS

被引:127
|
作者
MANSANARES, AM [1 ]
BENTO, AC [1 ]
VARGAS, H [1 ]
LEITE, NF [1 ]
MIRANDA, LCM [1 ]
机构
[1] INST PESQUISAS ESPACIAIS,ASSOCIADO SENSORES & MAT LAB,BR-12201 SAO JOSE CAMPOS,BRAZIL
来源
PHYSICAL REVIEW B | 1990年 / 42卷 / 07期
关键词
D O I
10.1103/PhysRevB.42.4477
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Using two different photoacoustic techniques for a two-layer system of variable thickness, we show that the thermal diffusivity and the thermal conductivity are completely determined, based upon the effective-sample model widely used in heat-transfer problems. A procedure to establish a standard photothermal technique for measuring both the thermal diffusivity and the thermal conductivity is also discussed. © 1990 The American Physical Society.
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页码:4477 / 4486
页数:10
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