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Home  >  Journal list  >  Journal of the Ceramic Society of Japan ( 2003 - 2007 )  >  Vol.114  No.1329 (May) (2006)  >  pp.377-379

Journal of the Ceramic Society of Japan ( 2003 - 2007 )
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Influence of Microwave Irradiation Method on the Sintering of Barium Titanate with Liquid Phase

Masaki YASUOKA1), Takashi SHIRAI1), Yutsuki NISHIMURA1), Yoshiaki KINEMUCHI1) and Koji WATARI1)
1) National Institute of Advanced Industrial Science and Technology (AIST)

  The ceramic industry uses enormous amounts of energy to make products at high temperatures. Therefore energy-saving measures based on sintering process improvements are being examined. Barium titanate in the presence of a liquid phase was irradiated by two different methods during microwave sintering: an intermittent use of the same high power levels (time-control method) and a continuous use of lower, increasing levels of power (power-control method). As a result, it is concluded that the liquid phase is generated faster in the time-control method provided that the microwave irradiation is carried out at a temperature which is higher than the generation temperature of liquid phase. The liquid phase was generated at a wider temperature in the power-control method. It has been understood that the temperature control becomes difficult, though the time-control method is more efficient for energy efficiency.

Microwave sintering, Microstructure, Power-control method, Time-control method, Liquid-phase sintering, Barium titanate

Received: November 28, 2005
Accepted: March 16, 2006 , Published online: May 01, 2006
Copyright (c) 2006 The Ceramic Society of Japan



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