天气预报 > 其他 > 铜和铝哪个的导电性能好
铜和铝哪个的导电性能好
更新时间: 2020-10-10 00:00:00  

铜的导电性好。物体传导电流的能力叫做导电性。各种金属的导电性各不相同,通常银的导电性最好,其次是铜和金。固体的导电是指固体中的电子或离子在电场作用下的远程迁移,通常以一种类型的电荷载体为主,如:电子导体,以电子载流子为主体的导电;离子导电,以离子载流子为主体的导电;混合型导体,其载流子电子和离子兼而有之。除此以外,有些电现象并不是由于载流子迁移所引起的,而是电场作用下诱发固体极化所引起的,例如介电现象和介电材料等。

关键词: 哪个 导电 性能

铜和铝哪个的导电性能好相关经验

天气预报

最新推荐

页面:/news/view-1284123/ | 耗时:0.0438 s | 内存:2.11 MB | 查询:4 | 缓存读取:3 写入:0 | 加载文件:25
select * from tbl_Articles WHERE ArticleID=1284123 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=1284123 LIMIT 0,1
select * from tbl_Articles_sphinx where id=1284123 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(1053162,1096254,1124955,1125190,1110031,1071295,1095888,1087481,1058958,1123389,1095624,1089058,1083059,1066194,1096989,1088878,1122930,1082936,1027251,1055694,1275561,1093280,1074843,1089498,2951980,1087793,1053584,1068264,985544,1074306) ORDER BY field (ArticleID,1053162,1096254,1124955,1125190,1110031,1071295,1095888,1087481,1058958,1123389,1095624,1089058,1083059,1066194,1096989,1088878,1122930,1082936,1027251,1055694,1275561,1093280,1074843,1089498,2951980,1087793,1053584,1068264,985544,1074306)