In-situ high spatial resolution two-color thermography in microwave selective heating system

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

MW selective heating is suggested to be occurred in microscale; however, it's impossible to measure a thermal gradient quantitatively in microscale by a conventional method. In addition, by conventional thermography, we cannot measure the materials temperature with different emissivity at the same time. Thus, selective-heating effect at the microscale is not understood well enough. In this study, the authors verify the elective heating effect using a high-resolution two-color thermography system. This system can measure the temperature on each pixel with ±2% accuracy with 8.8 µm/pixel. The results of the temperature distribution of at local areas clearly demonstrated that carbon powders were selectively heated. This selective heating resulted in local reduction at the contact point between C and a-Fe2O3, and carbon loss was enhanced because Boudouard reaction was more proceeded than other reaction.

Original languageEnglish
Title of host publicationMS and T 2019 - Materials Science and Technology 2019
PublisherMaterials Science and Technology
Pages194-201
Number of pages8
ISBN (Electronic)0873397703, 9780873397704
DOIs
Publication statusPublished - 2019
EventMaterials Science and Technology 2019, MS and T 2019 - Portland, United States
Duration: 2019 Sep 292019 Oct 3

Publication series

NameMS and T 2019 - Materials Science and Technology 2019

Conference

ConferenceMaterials Science and Technology 2019, MS and T 2019
CountryUnited States
CityPortland
Period19/9/2919/10/3

Keywords

  • Microwave processing
  • Selective heating
  • Two-color thermography

ASJC Scopus subject areas

  • Materials Science(all)

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