Technique for measuring thermal diffusivity/conductivity of small thermal-insulator specimens

Abstract

Articles you may be interested inMeasurement of thermal diffusivity of small, high conductivity samples using a phase sensitive technique Rev.

Scanning ferromagnetic resonance microscopy and resonant heating of magnetite nanoparticles: Demonstration of thermally detected magnetic resonance

“…We assume that the magnetite particle absorbs 100% of the power that it intercepts. Since the thermal conductivity of acrylic matrix is kϭ0.14-0.23 W/m K, 16 then for a single nanoparticle with radius of rϭ100 nm we find ⌬T Ϸ2°-3°C which is consistent with our observations ͑Fig. 2͒.…”

A new method for the evaluation of thermal conductivity and thermal diffusivity from transient hot strip measurements

“…In the temperature range indicated, the thermal diffusivity values decrease from 0.52 (at 191 K) to 0.41 mm-" .s-' (at 423 K) and are approximately 25% smaller then the reference data [12,13,16,17].…”

Thermal effusivity estimation of polymers in time domain

“…This procedure was validated with exact solution obtained by Lima e Silva, Duarte and Guimarães (1998). Literature values of α and λ for PVC (Crawford, 1998), for PMMA (Miller and Kotlar, 1991) and for PE (Guimarães, Philippi and Thery, 1995) were used. The difference between the two models is analyzed and the moment the difference begins to increase is determined.…”