A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High curie-point positive temperature coefficient resistance material Ba2LaV3O11 and preparation method thereof
The invention discloses a lead-free high curie-point positive temperature coefficient resistance material and a preparation method thereof, wherein the chemical composition type of the lead-free high curie-point positive temperature coefficient resistance material is Ba2LaV3O11, and original powder of BaCO3, La 2O3 and V2O5 which are above 99.9% (percentage by weight) in purity are weighed and burdened according to the Ba2LaV3O11, thereby preparing lead-free positive temperature coefficient resistance materials which are 570 DEG C in curie point through processes such as ball milling, calcining, secondary ball milling, granulating, forming, rubber discharging, high temperature sintering and top silver (Ag) electrodes and the like. The lead-free high curie-point positive temperature coefficient resistance material which is prepared through the method does not have 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 Ba2LaV3O11 and preparation method thereof
The invention discloses a lead-free high curie-point positive temperature coefficient resistance material and a preparation method thereof, wherein the chemical composition type of the lead-free high curie-point positive temperature coefficient resistance material is Ba2LaV3O11, and original powder of BaCO3, La 2O3 and V2O5 which are above 99.9% (percentage by weight) in purity are weighed and burdened according to the Ba2LaV3O11, thereby preparing lead-free positive temperature coefficient resistance materials which are 570 DEG C in curie point through processes such as ball milling, calcining, secondary ball milling, granulating, forming, rubber discharging, high temperature sintering and top silver (Ag) electrodes and the like. The lead-free high curie-point positive temperature coefficient resistance material which is prepared through the method does not have 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 Ba2LaV3O11 and preparation method thereof
LI CHUNCHUN (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