B2O3和Al2O3共同掺杂ZnO压敏陶瓷的性能

B₂O₃和Al₂O₃共同掺杂ZnO压敏陶瓷的性能

王昊, 赵洪峰, 康加爽, 周远翔, 谢清云

Properties of ZnO Varistor Ceramics Co-doped with B₂O₃ and Al₂O₃

WANG Hao, ZHAO Hongfeng, KANG Jiashuang, ZHOU Yuanxiang, XIE Qingyun

表1 不同B掺杂量样品的电性能和微观结构参数

Table 1 Electrical properties and microstructure parameters of samples with different B doping amounts

B content /%, mole fraction	d / $μ$ m	N_d /10²⁷m^-3	N_i /10¹⁸m^-2	$Φ_{b}$ /eV	E_b /V·mm^-1	J_L /μA·cm^-2	α	K	Grain boundary resistance/kΩ
0.0	6.58	1.86	1.81	1.66	470	4.06	51	1.57	29.69
1.5	6.61	1.98	2.03	1.98	474	2.52	67	1.58	45.14
3.0	6.62	2.59	2.86	2.98	475	0.16	106	1.57	74.68
4.5	6.66	2.23	2.27	2.17	479	0.25	86	1.59	52.53