Advertisement

Mechanism of Microwave Heating of Matter

  • Noboru YoshikawaEmail author
Chapter
  • 17 Downloads

Abstract

If we irradiate an object with microwave and observe its temperature increase, we would recognize the occurrence of “microwave heating.” This article starts with discussing what is heat and what happens in matters during heating. And the interaction between microwave and the matter is learned from an atomistic point of view. Microwave is an electromagnetic wave and has components of alternating electric (E-) and magnetic (H-) field. It is pointed out that microwave E- and H-field interactions are different with materials. The materials are divided into three classes, and the heating mechanisms are discussed by each class of them. Heat is a state of either translational motion of molecules or vibration of lattice consisting of atoms (ions) or elevation of free electron energy in metals. Their moving frequency is much higher than microwave. Nevertheless, these high-frequency motions are excited by microwave of lower frequency. The mechanism of which is not necessarily understood well but is the “state-of-art” in understanding the microwave heating. This article discusses it and provides some clue for this interpretation.

References

  1. 1.
    Metaxus AC, Meredith RJ (1983) Industrial microwave heating. In: IET power and energy series 4, 1st edn. The Institute of Engineering and Technology, LondonGoogle Scholar
  2. 2.
    National Research Council (1994) Microwave processing of materials. National Academy Press, Washington D.C.Google Scholar
  3. 3.
    Whittakar AG, Mingos DM (1995) J Chem Soc (Dalton Trans) 12:2073–2095CrossRefGoogle Scholar
  4. 4.
    Clark DE, Folz DC, West JK (2000) J Mater Sci Eng A287:153–158CrossRefGoogle Scholar
  5. 5.
    (a) Yoshikawa N (2014) Fundamentals in microwave processing of materials. Corona-sha, Tokyo, Japan. ISBN-10: 433904637X (in Japanese); (b) Yoshikawa N (2010) J Microwave Power Electromagn Energy 44:4–13Google Scholar
  6. 6.
    von Hippel AR (Ed) (1954) Dielectric materials and applications, Chap. V. MIT Press, Cambridge, Mass, pp 291–429Google Scholar
  7. 7.
    Peng Z, Hwang JY, Mouris J, Hutcheon T, Huang X (2010) ISIJ Int 50:1590–1596CrossRefGoogle Scholar
  8. 8.
    Yoshikawa N, Kato T (2010) J Phys D Appl Phys 43(425403):1–5Google Scholar
  9. 9.
    Tanaka M, Sato M (2007) J Chem Phys 126(034509):1–9Google Scholar
  10. 10.
    Booske JH, Cooper RF, Dobson I (1992) J Mater Res 7:495–501CrossRefGoogle Scholar
  11. 11.
    Kittel C (1958) Phys Rev 110:1295–1297MathSciNetCrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.Department of Materials Science and Engineering, Graduate School of Environmental StudiesTohoku UniversitySendaiJapan

Personalised recommendations