电阻法间接测量居里温度  

Measuring Curie temperature indirectly by changing resistance

作　　者：祁毓俊[1] 孙光飞[1] 陈菊芳[1] 胡权霞[1] 庞利佳[1] 

机构地区：[1]北京科技大学材料学院,北京100083

出　　处：《物理实验》2005年第9期37-39,共3页Physics Experimentation

摘　　要：在磁性材料的实际应用中有时需要测量居里温度.采用电阻法测量在升温过程中电阻的变化从而来推算居里温度.结果表明,一般情况下,随着温度的升高电阻是增大的,当温度在居里点附近,电阻或者处于一稳定值或者有明显偏小现象,根据温度对电阻的影响可知居里点就在此范围内.In the practical use of magnetic material, sometimes its Curie temperature needs to be measured. Curie point can be inferred by using the method of measuring resistance change in the process of being heated. The result shows that normally resistance increases while temperature rises, as near the Curie point the resistance is either in a steady state or decreasing apparently, therefore the Curie temperature is revealed.

关 键 词：磁性材料 电阻 居里温度 

分 类 号：O441.5[理学—电磁学]