コンスタンタン

Also known as Eureka, Advance, Ferry

Constantan refers to a copper-nickel alloy commonly used for its stable electrical resistance across a wide range of temperatures. Alternatively it is known in various contexts as Eureka, Advance, or Ferry. It usually consists of 55% copper and 45% nickel. Its main feature is the low thermal variation of its resistivity, which is constant over a wide range of temperatures. Other alloys with similarly low temperature coefficients are known, such as manganin (Cu [86%] / Mn [12%] / Ni [2%] ).

Key facts

Material.name: Constantan
Material.image: Konstantandraht.jpg
Material.caption: A spool of Constantan wire
Material.type: Copper-nickel alloy
Material.youngs_modulus: 162 GPa
Material.tensile_strength: ~450 MPa
Material.elongation: ~0.25%
Material.surface_resistivity: 0.56 μΩ·m

via Wikipedia infobox

Wikidata facts

Has part: manganese
Image: Konstantandraht.jpg

Sources (1)

wikidata.org

via Wikidata · CC0

Article · 日本語

コンスタンタン（英: Constantan）は銅55%ニッケル45%の組成からなる合金である。銅の中のニッケルの成分比を変化させると、ニッケルが約50%付近で電気抵抗値が最大、抵抗の温度係数が最小、熱起電力が最小になる。電気抵抗の温度係数が小さいことから、ひずみゲージ・精密抵抗に使われる。また、熱起電力が低いことから、熱電対などに使われる。熱電対の相手の金属は例えば銅や鉄などである。

Abstract from DBpedia / Wikipedia · CC BY-SA