Research on Polymerization of PMN-PZT Piezoelectric Ceramic by Gelcasting Using NMAM System

Abstract:

The industrialization of gelcasting technique has been prevented because acryamide is a neurotoxin monomer. In this paper, a low-toxicity gel system based on the polymerization of low-toxicity N-hydroxymothl acrylamide was used for the gelcasting PMN-PZT piezoelectric ceramic. The effects of monomer concentration, the dosage of initiator and catalyst, pH value on polymerization were studied. The results showed that the condition suitable for gelcasting PMN-PZT piezoelectric ceramics could be obtained while monomer concentration was 10wt%～15wt%, the dosages of initiator and catalyst were respectively 0.4 vol%～0.5vol% and 0.4vol%, pH value of slurry was about 10. The highest bending strength of PMN-PZT green body prepared at the aboved conditions can reach 19.5Mpa

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 312-315
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.312
• Online since: January 2013
• Authors: Ping Zhou, Jing Hong Du
• Keywords: Gelcasting, N-Methylolacrylamide, PMN-PZT, Polymerization

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