原创 金属电阻率及其温度系数

物质   温度 t/℃   电阻率 Ω^.m           电阻温度系数 a_R/℃^-1<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" />

银     20         1.586                0.0038(<?xml:namespace prefix = st1 ns = "urn:schemas-microsoft-com:office:smarttags" />20℃)

铜     20         1.678                0.00393(20℃)

金     20         2.40                 0.00324(20℃)

铝     20         2.6548               0.00429(20℃)

钙     0          3.91                 0.00416(0℃)

铍     20         4.0                  0.025(20℃)

镁     20         4.45                 0.0165(20℃)

钼     0          5.2                 

铱     20         5.3                  0.003925(0℃~100℃)

钨     27         5.65                

锌     20         5.196                0.00419(0℃~100℃)

钴     20         6.64                 0.00604(0℃~100℃)

镍     20         6.84                 0.0069(0℃~100℃)

镉     0          6.83                 0.0042(0℃~100℃)

铟     20         8.37                 　

铁     20         9.71                 0.00651(20℃)

铂     20         10.6                 0.00374(0℃~60℃)

锡     0          11.0                 0.0047(0℃~100℃)

铷     20         12.5                

铬     0          12.9                 0.003(0℃~100℃)

镓     20         17.4                

铊     0          18.0                 　

铯     20         20                   　

铅     20         20.684               (0.0037620℃~40℃)

锑     0          39.0                 　

钛     20         42.0                

汞     50         98.4