Measurement of Thermal Diffusion in Coatings and Films by Traveling Thermal Wave Technique

被引：1

作者：

Manjusha, M. V. ^{[1
]}

Philip, J. ^{[2
]}

机构：

[1] MG Univ, Sch Phys, Kottayam, Kerala, India

[2] Cochin Univ Sci & Technol, STIC, Cochin 682022, Kerala, India

来源：

SOLID STATE PHYSICS: PROCEEDINGS OF THE 55TH DAE SOLID STATE PHYSICS SYMPOSIUM 2010, PTS A AND B | 2011年 / 1349卷

关键词：

Thermal diffusivity; Photothermal signal; Phase lag; Traveling thermal wave; THIN-FILMS;

D O I：

10.1063/1.3605937

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

A novel technique to measure thermal transport properties of material coatings and films has been developed. The method involves excitation of thermal waves by modulated laser beam and detection with a pyroelectric detector kept at a definite distance from the point of excitation. Thermal diffusivity of the coating is derived from a phase analysis of the detected photo thermal signal with distance between excitation and detector positions. The technique has been tested with known samples. The results are presented and discussed.

引用

页码：469 / +

页数：2