Microwave and conventional sintering of lead-free (K,Na) NbO3-based piezoelectric ceramic multilayer actuators
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초록
A comparative study of microwave and conventional sintering of lead-free Li-and Ta-modified (K,Na)NbO3 (KNN) multilayer ceramic actuators (MLCAs) was completed. It was found that microwave sintering (MWS) could be successfully applied to the co-firing of KNN/AgPd MLCAs with a firing cycle that is ten times shorter and a firing temperature 150 o C lower (900 o C) than conventional furnace sintering (1050 o C) for sufficient densification. Furthermore, MWS-derived specimens showed electric field-induced strain comparable to those obtained using conventional sintering.
Abstract
A comparative study of microwave and conventional sintering of lead-free Li-and Ta-modified (K,Na)NbO3 (KNN) multilayer ceramic actuators (MLCAs) was completed. It was found that microwave sintering (MWS) could be successfully applied to the co-firing of KNN/AgPd MLCAs with a firing cycle that is ten times shorter and a firing temperature 150 o C lower (900 o C) than conventional furnace sintering (1050 o C) for sufficient densification. Furthermore, MWS-derived specimens showed electric field-induced strain comparable to those obtained using conventional sintering.
참고문헌 (21)
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