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Microwave Effects on Spinodal Decomposition

  • M. Willert-Porada (a1)

Microstructural differences between microwave and conventionally annealed solid solution TiO2-SnO2 and TiO2-SnO2-(Al2O3)0,02-samples demixed by spinodal decomposition are reported. The decomposition is retarded upon microwave annealing as compared to conventional heat treatment. This result is in accordance with theoretical predictions, if a superposition of the microwave field with an internal periodic electrostatic potential resulting from kinetic effects is assumed.

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[1] Willert-Porada, M., in Microwaves; Theory and Application in Materials Processing II, edited by Clark, D.E., Folz, D.C., Oda, S.J. and Silberglitt, R., Ceram. Trans. Vol.59 (1995) pp. 193203
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