Bariumvacancy existed in grain boundary is responsible for the PTCR effect observed in donor doped barium titanate ceramics.
施主掺杂的钛酸钡陶瓷的PT CR效应来源于晶界上的钡空位。
2
The improvement of the PTC characteristics was induced by the more oxide of the grain boundary of the refiner particle size and an increase of the Bariumvacancy.