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This study investigated the effects of sintering temperature and cooling rates on the positive temperature coefficient of resistance (PTCR) effect and microstructures of Ba1.022–xSmxTiO3 (BST) ceramics sintered at 1200°C−1260°C for 30min in a reducing atmosphere and reoxidized at 700°C−900°C for 1h. The sintering temperature and cooling rates influenced the PTCR effect and microstructure of the BST...
The effects of Li2O-ZnO-B2O3 addition on densification, microstructure and dielectric properties of X7R dielectric fired at 950°C in a reducing atmosphere have been investigated. Combined with a mixture of Li2CO3, H3BO3 and ZnO (LZB-M), the resulting low-fire dielectric composites are more densified with a higher dielectric constant than those prepared by using a Li2O-ZnO-B2O3 glass (LZB-G). This...
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