Influence of the Duration of Thermal Action on the Errors in Determining the Thermophysical Characteristics of Ceramic Materials by a Laser Pulse Method

Research output: Contribution to journalArticle

Abstract

An analysis of the errors involved in determining the thermophysical characteristics of a special-purpose ceramic material — zirconium carbide — is made. It is shown that the errors of determining the heat capacity and thermal diffusivity of the indicated material under conditions corresponding to the implementation of the laser pulse method vary nonmonotonically depending on the pulse duration. The possibility of attaining minimum values of methodical errors by appropriately selecting the thickness of a sample and of the time of its heating is shown.

Original languageEnglish
Pages (from-to)1-5
Number of pages5
JournalJournal of Engineering Physics and Thermophysics
DOIs
Publication statusAccepted/In press - 13 Jun 2016

Fingerprint

Ceramic materials
Laser pulses
ceramics
zirconium carbides
pulses
lasers
Thermal diffusivity
thermal diffusivity
Zirconium
Specific heat
diffusivity
Carbides
pulse duration
specific heat
Heating
heating
Hot Temperature

Keywords

  • heat capacity
  • laser pulse method
  • pulse duration
  • thermal diffusivity
  • thermophysical characteristics
  • zirconium carbide

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Engineering(all)

Cite this

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abstract = "An analysis of the errors involved in determining the thermophysical characteristics of a special-purpose ceramic material — zirconium carbide — is made. It is shown that the errors of determining the heat capacity and thermal diffusivity of the indicated material under conditions corresponding to the implementation of the laser pulse method vary nonmonotonically depending on the pulse duration. The possibility of attaining minimum values of methodical errors by appropriately selecting the thickness of a sample and of the time of its heating is shown.",
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AB - An analysis of the errors involved in determining the thermophysical characteristics of a special-purpose ceramic material — zirconium carbide — is made. It is shown that the errors of determining the heat capacity and thermal diffusivity of the indicated material under conditions corresponding to the implementation of the laser pulse method vary nonmonotonically depending on the pulse duration. The possibility of attaining minimum values of methodical errors by appropriately selecting the thickness of a sample and of the time of its heating is shown.

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