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High-Curie point positive temperature coefficient resistor material Li3BaTiNbO7 and preparation method thereof
The invention discloses a 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 Li3BaTiNbO7. The preparation method comprises the following steps: weighing and proportioning original powders with the purity of 99.9% (wt) or above of Li2CO3, BaCO3, TiO2 and Nb2O5 according to Li3BaTiNbO7, 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 high Curie point of 490DEG 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 Li3BaTiNbO7 and preparation method thereof
The invention discloses a 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 Li3BaTiNbO7. The preparation method comprises the following steps: weighing and proportioning original powders with the purity of 99.9% (wt) or above of Li2CO3, BaCO3, TiO2 and Nb2O5 according to Li3BaTiNbO7, 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 high Curie point of 490DEG 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 Li3BaTiNbO7 and preparation method thereof
LUO HAO (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