Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High Curie point positive temperature coefficient resistance material Ba2Li3Bi2Nb5O19 and preparation method
The present invention discloses a lead-free high Curie point positive temperature coefficient resistance material and a preparation method. The chemical composition formula of the high Curie point positive temperature coefficient resistance material is Ba2Li3Bi2Nb5O19. The lead-free positive temperature coefficient resistance material with Curie point as high as 425 DEG C is obtained by weighing and dosing of BaCO3, Li2CO3, Bi2O3 and Nb2O5 original powder with the purity of 99.9% (by weight) or more according to Ba2Li3Bi2Nb5O19 and ball milling, calcining, second ball-milling, granulation, molding, debinding, high temperature sintering, loading of Ag electrode and other processes. The resistance material prepared by the method does not contain lead, and avoids human body health hazards and environmental pollution of lead. The resistance material is low in sintering temperature, low in cost of raw materials, reaches the practical level, and is suitable for industrial mass production.
High Curie point positive temperature coefficient resistance material Ba2Li3Bi2Nb5O19 and preparation method
The present invention discloses a lead-free high Curie point positive temperature coefficient resistance material and a preparation method. The chemical composition formula of the high Curie point positive temperature coefficient resistance material is Ba2Li3Bi2Nb5O19. The lead-free positive temperature coefficient resistance material with Curie point as high as 425 DEG C is obtained by weighing and dosing of BaCO3, Li2CO3, Bi2O3 and Nb2O5 original powder with the purity of 99.9% (by weight) or more according to Ba2Li3Bi2Nb5O19 and ball milling, calcining, second ball-milling, granulation, molding, debinding, high temperature sintering, loading of Ag electrode and other processes. The resistance material prepared by the method does not contain lead, and avoids human body health hazards and environmental pollution of lead. The resistance material is low in sintering temperature, low in cost of raw materials, reaches the practical level, and is suitable for industrial mass production.
High Curie point positive temperature coefficient resistance material Ba2Li3Bi2Nb5O19 and preparation method
FANG LIANG (Autor:in) / CHEN JINWU (Autor:in) / WANG DAN (Autor:in)
27.01.2016
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2016
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2015
| Europäisches Patentamt | 2015