Resistivity and Temperature Coefficient at 20 C

20°C时的电阻率和温度系数

Material 材料	Resistivity ρ (ohm m) 电阻率 ρ (欧姆·米)		Temperature coefficient α per degree C 温度系数 α 每摄氏度	Conductivity σ x 10⁷ /Ωm 导电率 σ x 10 7 /Ωm	Ref 参考文献
Silver 银	1.59	x10^-8	.0038	6.29	3
Copper 铜	1.68	x10^-8	.00386	5.95	3
Copper 铜	1.724	x10^-8	...	...	4
Copper, annealed 铜，退火态	1.72	x10^-8	.00393	5.81	2
Aluminum 铝	2.65	x10^-8	.00429	3.77	1
Tungsten 钨	5.6	x10^-8	.0045	1.79	1
Iron 铁	9.71	x10^-8	.00651	1.03	1
Platinum 铂	10.6	x10^-8	.003927	0.943	1
Manganin 锰铜	48.2	x10^-8	.000002	0.207	1
Lead 铅	22	x10^-8	...	0.45	1
Mercury 水星	98	x10^-8	.0009	0.10	1
Nichrome (Ni,Fe,Cr alloy) 镍铬合金（Ni,Fe,Cr合金）	100	x10^-8	.0004	0.10	1
Constantan 康斯坦坦	49	x10^-8	...	0.20	1
Carbon* (graphite) 碳（石墨）	3-60	x10^-5	-.0005	...	1
Germanium* 锗	1-500	x10^-3	-.05	...	1
Silicon* 硅*	0.1-60	...	-.07	...	1
Glass 玻璃	1-10000	x10⁹	...	...	1
Quartz (fused) 石英（熔融）	7.5	x10¹⁷	...	...	1
Hard rubber 硬橡胶	1-100	x10¹³	...	...	1

*The resistivity of semiconductors depends strongly on the presence of impurities in the material, a fact which makes them useful in solid state electronics.

半导体的电阻率强烈依赖于材料中杂质的存在，这一特性使它们在固体电子学中具有实用性。

References:

1. Giancoli, Douglas C., Physics, 4th Ed, Prentice Hall, (1995).

1. Giancoli, Douglas C., 物理学, 4th Ed, Prentice Hall, (1995).

参考文献：

2. CRC Handbook of Chemistry and Physics, 64th ed.

2. CRC 化学与物理手册，第64版

3. Wikipedia, Electrical resistivity and conductivity.

3. Wikipedia，电电阻率和电导率。

4. 工程工具箱