Journal ArticleDOI
Measurement of thermal diffusivity using a pyroelectric detector
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TLDR
In this paper, a method of measuring the thermal diffusivity of thin layers has been developed and applied to the characterization of laminated structures using pyroelectric detection of a laser generated thermal pulse propagating through the sample.Abstract:
A new method of measuring the thermal diffusivity of thin layers has been developed and applied to the characterization of laminated structures. The thermal diffusivity is measured using pyroelectric detection of a laser generated thermal pulse propagating through the sample. The shape of this pulse is governed by the thermal properties of both the sample and the detector. However, the thermal diffusivity of the sample can be determined from the position of the peak in the pyroelectric signal and the sample thickness. This method can be applied to thermal diffusivity measurements of thin or thick films, laminates, and thermal greases.read more
Citations
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Proceedings ArticleDOI
Sintering time effect on thermal diffusivity in BSSCO doped with Sm at low temperatures as revealed by flash method
M. Haydari,Mohd Maarof Abd. Moksin,W. Mahmood Mat Yunus,Ionel Valeriu Grozescu,Imad Hamadneh,Shaari Abdul Halim +5 more
TL;DR: In this paper, the effect of sintering time on thermal diffusivity of BSCCO (Bi-Pb-Sr-Ca-Cu-O) superconductors doped with Sm with different concentration was reported.
Book ChapterDOI
Frequency-Modulated Time-Delay-Domain Photothermal Spectrometry: Principles, Instrumentation and Applications to Solids
TL;DR: The origins, development and state of the art of the photothermal wave frequency-modulated (FM) spectrometry, a technique intermediate between the frequency and time domains, are examined in this paper in terms of correlation and spectral functional analysis.
Proceedings ArticleDOI
Calorimetric and acoustic study of far-UV laser ablation of polymers
TL;DR: In this article, the photothermal heat exchange during the irradiation of polyimide (Kapton) with a 193-nm laser pulse (14 nsec) both below and above the ablation threshold was studied.
Journal ArticleDOI
Investigation of thermal and dielectric properties of tin-doped piezoelectric ceramics based on barium titanate
O. V. Malyshkina,A. A. Movchikova,K. N. Penzov,R. Steinhausen,Hans Theo Langhammer,Horst Beige +5 more
TL;DR: In this paper, the temperature dependences of the permittivity and pyroelectric coefficient of BaTi1 − xSnxO3 piezoelectric ceramics with a homogeneous composition and a tin concentration gradient have been studied.
Journal ArticleDOI
Nonstationary thermophysical characterization of exfoliated graphite with carbon nanotubes composites
Nicholas V. Morozovsky,Y. M. Barabash,Y. Grebelna,Mykola T. Kartel,Yu. I. Sementsov,Galina I. Dovbeshko +5 more
TL;DR: In this paper , thermally exfoliated graphite (TEG) and carbon nanotubes (CNT) composites were obtained by persulphate oxidation using chemical (CO) and electrochemical (anode) oxidation (ECAO).
References
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Book
Conduction of Heat in Solids
H. S. Carslaw,John Conrad Jaeger +1 more
TL;DR: In this paper, a classic account describes the known exact solutions of problems of heat flow, with detailed discussion of all the most important boundary value problems, including boundary value maximization.
Book
Principles and Applications of Ferroelectrics and Related Materials
TL;DR: In this paper, the theory of ferroelectricity in terms of soft modes and lattice dynamics is developed and modern techniques of measurement, including X-ray, optic, and neutron scattering, infra-red absorption, and magnetic resonance.
Journal ArticleDOI
Investigation of the Electrical Properties of Sr1−xBaxNb2O6 with Special Reference to Pyroelectric Detection
TL;DR: In this paper, the dielectric constants, electrical conductivity, specific heat, and pyroelectric coefficients of ferroelectric Sr1−xBaxNb2O6 (SBN) were investigated as a function of temperature in the range 10°-500°K, and as a result of the Sr/Ba composition of the material.
ReportDOI
Thermophysical properties of sodium
G. H. Golden,J. V. Tokar +1 more
TL;DR: In this article, the FORTRAN subroutine computes enthalphy and entropy of sodium in given state, and composition, molecular weight, volume, and compressibility factor of corresponding vapor.