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High curie-point positive temperature coefficient resistance material Ba4ZnNb2O10 and preparation method thereof
The invention discloses a lead-free high curie-point positive temperature coefficient resistance material and a preparation method thereof. The chemical composition formula of the lead-free high curie-point positive temperature coefficient resistance material is Ba4ZnNb2O10, and original powder of BaCO3, ZnO and Nb2O5 which are above 99.9% (percentage by weight) in purity is weighed and burdened according to the Ba4ZnNb2O10, thereby preparing lead-free positive temperature coefficient resistance materials which are 410 DEG C in curie point through processes such as ball milling, calcining, secondary ball milling, granulating, forming, rubber discharging, high temperature sintering and Ag electrode plating and the like. The lead-free high curie-point positive temperature coefficient resistance material which is prepared through the method does not contain lead, thereby preventing lead from damaging fitness of human bodies and polluting environment. The lead-free high curie-point positive temperature coefficient resistance material and the preparation method thereof are low in sintering temperature and low in cost of raw materials, achieve practical level, and are suitable for industrialized mass production.
High curie-point positive temperature coefficient resistance material Ba4ZnNb2O10 and preparation method thereof
The invention discloses a lead-free high curie-point positive temperature coefficient resistance material and a preparation method thereof. The chemical composition formula of the lead-free high curie-point positive temperature coefficient resistance material is Ba4ZnNb2O10, and original powder of BaCO3, ZnO and Nb2O5 which are above 99.9% (percentage by weight) in purity is weighed and burdened according to the Ba4ZnNb2O10, thereby preparing lead-free positive temperature coefficient resistance materials which are 410 DEG C in curie point through processes such as ball milling, calcining, secondary ball milling, granulating, forming, rubber discharging, high temperature sintering and Ag electrode plating and the like. The lead-free high curie-point positive temperature coefficient resistance material which is prepared through the method does not contain lead, thereby preventing lead from damaging fitness of human bodies and polluting environment. The lead-free high curie-point positive temperature coefficient resistance material and the preparation method thereof are low in sintering temperature and low in cost of raw materials, achieve practical level, and are suitable for industrialized mass production.
High curie-point positive temperature coefficient resistance material Ba4ZnNb2O10 and preparation method thereof
XIANG HUAICHENG (author) / FANG LIANG (author) / WANG DAN (author)
2015-12-30
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2015
| European Patent Office | 2016
| European Patent Office | 2015
| European Patent Office | 2015
| European Patent Office | 2015