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High-Curie point positive temperature coefficient resistor material Ba3Ti4V4O21 and preparation method thereof
The invention discloses a leadless high-Curie point positive temperature coefficient resistor material and a preparation method thereof. The chemical composition formula of the high-Curie point positive temperature coefficient resistor material is Ba3Ti4V4O21. The preparation method comprises the following steps: weighing and proportioning original powders with the purity of 99.9% (wt) or above of BaCO3, TiO2 and V2O5 according to Ba3Ti4V4O21, carrying out ball milling, calcining, carrying out secondary ball milling, granulating, molding, debinding, carrying out high temperature sintering, adding to an Ag electrode to prepare the leadless positive temperature coefficient resistor material with the high Curie point of 416DEG C. The resistor material prepared in the invention contains no lead, and avoids harms of lead to the body health of people and pollution of lead to environment. The resistor material has the advantages of low sintering temperature, low raw material cost, reaching of practical level, and suitableness for industrial large-scale production.
High-Curie point positive temperature coefficient resistor material Ba3Ti4V4O21 and preparation method thereof
The invention discloses a leadless high-Curie point positive temperature coefficient resistor material and a preparation method thereof. The chemical composition formula of the high-Curie point positive temperature coefficient resistor material is Ba3Ti4V4O21. The preparation method comprises the following steps: weighing and proportioning original powders with the purity of 99.9% (wt) or above of BaCO3, TiO2 and V2O5 according to Ba3Ti4V4O21, carrying out ball milling, calcining, carrying out secondary ball milling, granulating, molding, debinding, carrying out high temperature sintering, adding to an Ag electrode to prepare the leadless positive temperature coefficient resistor material with the high Curie point of 416DEG C. The resistor material prepared in the invention contains no lead, and avoids harms of lead to the body health of people and pollution of lead to environment. The resistor material has the advantages of low sintering temperature, low raw material cost, reaching of practical level, and suitableness for industrial large-scale production.
High-Curie point positive temperature coefficient resistor material Ba3Ti4V4O21 and preparation method thereof
LI CHUNCHUN (author) / FANG LIANG (author) / WANG DAN (author)
2016-01-27
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2016
| European Patent Office | 2016
| European Patent Office | 2016
| European Patent Office | 2015
| European Patent Office | 2016