Why Does CuNi Have Decreasing Resistivity with Increasing Temperature?

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SUMMARY

CuNi, an alloy of copper and nickel, exhibits decreasing resistivity with increasing temperature within the range of 20°C to 80°C. This behavior is characteristic of metals, where resistivity typically decreases as temperature rises due to increased atomic vibrations that facilitate electron mobility. The discussion highlights that there are no unique properties of CuNi that would lead to an expectation of different behavior compared to other metals.

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  • Understanding of electrical resistivity in metals
  • Basic knowledge of alloy composition and properties
  • Familiarity with temperature effects on conductivity
  • Concepts of atomic structure and electron mobility
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  • Research the temperature-resistivity relationship in metals
  • Explore the specific properties of copper-nickel alloys
  • Investigate the atomic structure of CuNi and its impact on conductivity
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Materials scientists, electrical engineers, and students studying metallurgy or solid-state physics will benefit from this discussion.

empirekhoo
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I've been googling around but i seems not able to find why CuNi have decreasing resistivity when temperature is increased at the range of 20 celsius - 80 celsius. Please enlighten me!

thanks a bunch!
 
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That's characteristic of a metal. What are the specifics about CuNi that makes you expect something different?
 


basically none. I am finding some. well thanks anyway. problem solved!
 

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