The engineering technology is perceiving several eureka day by day due to the invention of several technical milestones. Apart from that, how many of you know that a certain metal alloy combination is titled as eureka? Let us get to the detail and its application in wiring technology.
Eureka wire is a combination of nickel and copper metals. It is also called constantan. It is made up of 45% of nickel and 55% of copper. It has many applications in the field of temperature measurement where the resistance needs to be constant throughout its range.
Properties of Eureka Wire
- It is a silver-white coloured wire and is very easy to solder and mould.
- It has a resistivity of 0.49 micro ohm-meter. Due to this, it is widely used in the applications where the resistance needs to be constant for a particular range of varying temperature.
- It has a melting point of 1200-1300 degree Celsius.
- It's tensile strength is 450-850MPa.
- It has a good life span.
- It has a better elongation property.
Uses of Eureka Wire
Due to its resistivity property, it has a great demand over the other alloys. It has many applications in the field of temperature measurement.
The constant resistivity of eureka wire brings its applications in the making of thermocouples and other heavy-duty industrial rheostats. And also, it has applications as an alloy for wire wound resistors and temperature-stable potentiometers.
Who invented the Eureka wire?
The history of eureka wire rewinds to hundreds of years before. It was in Germany, a scientist named Edward Weston invented this metal alloy in 1887.
