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misch metal

[mish] /mɪʃ/
noun
1.
a pyrophoric alloy, containing approximately 50 percent cerium and 45 percent lanthanum, made from a mixture of various rare-earth chlorides by electrolysis.
Origin
1920-1925
1920-25; < German Mischmetall, equivalent to misch(en) to mix + Metall metal
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for misch metal

misch metal

/mɪʃ/
noun
1.
an alloy of cerium and other rare earth metals, used esp as a flint in cigarette lighters
Word Origin
C20: from German Mischmetall, from mischen to mix
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Encyclopedia Article for 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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