2007
DOI: 10.1590/s0366-69132007000300015
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Sinterização de cerâmicas à base de PZT em forno de microondas

Abstract: Cerâmicas de titanato e zirconato de chumbo dopadas com neodímio foram sinterizadas em um forno de microondas de uso doméstico modificado. Neste tipo de aquecimento, a energia eletromagnética é transferida diretamente para o material, sendo convertida em calor pelo material cerâmico, reduzindo o tempo e energia durante o processamento. Desta forma, foram produzidos corpos cerâmicos com tempo de sinterização que variou até 30 min, a 1100 e 1200 ºC. As fases foram investigadas por meio de difratometria de raios … Show more

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Cited by 3 publications
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“…Microwave sintering is well known to reduce soaking time and temperature of sintering process, [22][23][24][25][26][27] which decreases the grain size and promotes differential microstructure and properties of ceramics.…”
Section: Introductionmentioning
confidence: 99%
“…Microwave sintering is well known to reduce soaking time and temperature of sintering process, [22][23][24][25][26][27] which decreases the grain size and promotes differential microstructure and properties of ceramics.…”
Section: Introductionmentioning
confidence: 99%
“…Microwave sintering (μS) is usually described as a process that can promote densifi cation in ceramics at a very high heating rate of about 400 o C/min [1,2], at a lower temperature than that employed in the conventional sintering process (cS) [3][4][5][6]. High density materials can be obtained by microwave and conventional heating methods [7][8][9], presenting signifi cant differences in physical properties such as density, mechanical strength and grain size distribution.…”
Section: Introductionmentioning
confidence: 99%
“…High density materials can be obtained by microwave and conventional heating methods [7][8][9], presenting signifi cant differences in physical properties such as density, mechanical strength and grain size distribution.…”
Section: Introductionmentioning
confidence: 99%