Cunife: Difference between revisions
Undid revision 977219869 by Griffiths987 (talk) Kunifer is completed unrelated to Cunife; is a completely different alloy; has completely different characteristics and used for a completely different purpose. Per WP:BRD you must not revert back in you edit but seek a consensus on the talk page for its inclusion (unlikely). |
m Given the similarity of name, a confused tag is justified. |
||
| Line 1: | Line 1: | ||
{{confused|kunifer}} |
|||
'''Cunife''' is an [[alloy]] of [[copper]] (Cu), [[nickel]] (Ni), [[iron]] (Fe), and in some cases [[cobalt]] (Co). The alloy has the same linear [[coefficient of expansion]] as certain types of glass, and thus makes an ideal material for the lead out wires in light bulbs and [[thermionic valve]]s. [[Fernico]] exhibits a similar property. It is a [[magnetic alloy]] and can be used for making [[magnet]]s. |
'''Cunife''' is an [[alloy]] of [[copper]] (Cu), [[nickel]] (Ni), [[iron]] (Fe), and in some cases [[cobalt]] (Co). The alloy has the same linear [[coefficient of expansion]] as certain types of glass, and thus makes an ideal material for the lead out wires in light bulbs and [[thermionic valve]]s. [[Fernico]] exhibits a similar property. It is a [[magnetic alloy]] and can be used for making [[magnet]]s. |
||
Revision as of 16:52, 7 September 2020
Cunife is an alloy of copper (Cu), nickel (Ni), iron (Fe), and in some cases cobalt (Co). The alloy has the same linear coefficient of expansion as certain types of glass, and thus makes an ideal material for the lead out wires in light bulbs and thermionic valves. Fernico exhibits a similar property. It is a magnetic alloy and can be used for making magnets.
Cunife has a magnetic coercivity of several hundred oersteds. Unlike most high coercivity magnetic materials which are hard and brittle and need to be cast into shape, cunife can be drawn into thin wires. Wires as thin as five thou can be produced this way.[1]
In the early 1970s, Fender Musical Instruments Corporation used Cunife magnets in their Wide Range humbucking pickups, however they discontinued use, due to Cunife being hard to source. Fender began producing cunife pickups again in 2020.[2]
Typical compositions
Given in weight %
| Cu | Ni | Fe | Co | |
|---|---|---|---|---|
| Cunife 1 | 60% | 20% | 20% | - |
| Cunife 2 | 60% | 20% | 17.5% | 2.5% |
References
- ^ Irvin L. Cooter, Robert E. Mundy, "Cunife wire magnets of small size", Journal of Research of the National Bureau of Standards, vol. 59, no. 6, pp. 379-382, December 1957.
- ^ "Fender American Original '70s Telecaster Custom review". Music Radar. Future Publishing Limited. Retrieved 24 August 2020.
External links
 | This alloy-related article is a stub. You can help Wikipedia by expanding it. |
 | This industry-related article is a stub. You can help Wikipedia by expanding it. |