misch metal

misch metal

[mish]
noun
a pyrophoric alloy, containing approximately 50 percent cerium and 45 percent lanthanum, made from a mixture of various rare-earth chlorides by electrolysis.

Origin:
1920–25; < German Mischmetall, equivalent to misch(en) to mix + Metall metal

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World English Dictionary
misch metal (mɪʃ)
 
n
an alloy of cerium and other rare earth metals, used esp as a flint in cigarette lighters
 
[C20: from German Mischmetall, from mischen to mix]

Collins English Dictionary - Complete & Unabridged 10th Edition
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Encyclopedia Britannica
Encyclopedia

misch metal

alloy consisting of about 50 percent cerium, 25 percent lanthanum, 15 percent neodymium, and 10 percent other rare-earth metals and iron. Misch metal has been produced on a relatively large scale since the early 1900s as the primary commercial form of mixed rare-earth metals. Misch metal alloyed with iron is the flint (spark-producing agent) in cigarette lighters and similar devices. Misch metal is also used as a deoxidizer in various alloys and to remove oxygen in vacuum tubes. As an alloying agent in magnesium, it contributes to high strength and creep resistance

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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