Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High Curie point positive temperature coefficient resistor material Ba5LiTiNb3O15and preparation method thereof
The present invention discloses a lead-free high Curie point positive temperature coefficient resistor material and a preparation method, wherein the chemical composition formula of the high Curie point positive temperature coefficient resistor material is Ba5LiTiNb3O15. The preparation method comprises: carrying out weighing preparing on the original powders of BaCO3, Li2CO3, TiO2 and Nb2O5 having a purity of more than or equal to 99.9% (by weight) according to the composition of Ba5LiTiNb3O15, and carrying out ball milling, calcining, secondary ball milling, granulation, molding, glue removing, high temperature sintering, Ag electrode loading and other processes to prepare the lead-free positive temperature coefficient resistor material having the Curie point of up to 660 DEG C. According to the present invention, the prepared resistor material does not contain lead, such that the harm of the lead on human body health and the pollution of the lead on the environment are avoided; and the sintering temperature is low, the raw material cost is low, the practical level is achieved, and the method is suitable for industrial mass production.
High Curie point positive temperature coefficient resistor material Ba5LiTiNb3O15and preparation method thereof
The present invention discloses a lead-free high Curie point positive temperature coefficient resistor material and a preparation method, wherein the chemical composition formula of the high Curie point positive temperature coefficient resistor material is Ba5LiTiNb3O15. The preparation method comprises: carrying out weighing preparing on the original powders of BaCO3, Li2CO3, TiO2 and Nb2O5 having a purity of more than or equal to 99.9% (by weight) according to the composition of Ba5LiTiNb3O15, and carrying out ball milling, calcining, secondary ball milling, granulation, molding, glue removing, high temperature sintering, Ag electrode loading and other processes to prepare the lead-free positive temperature coefficient resistor material having the Curie point of up to 660 DEG C. According to the present invention, the prepared resistor material does not contain lead, such that the harm of the lead on human body health and the pollution of the lead on the environment are avoided; and the sintering temperature is low, the raw material cost is low, the practical level is achieved, and the method is suitable for industrial mass production.
High Curie point positive temperature coefficient resistor material Ba5LiTiNb3O15and preparation method thereof
XIANG HUAICHENG (Autor:in) / FANG LIANG (Autor:in) / WANG DAN (Autor:in)
13.01.2016
Patent
Elektronische Ressource
Englisch
| Europäisches Patentamt | 2016
| Europäisches Patentamt | 2016
| Europäisches Patentamt | 2016
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2016