lect13_reel3_2pg

lect13_reel3_2pg - Alloys and Solid Solutions Chemistry 123...

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1 Alloys and Solid Solutions Alloys and Solid Solutions Chemistry 123 Spring 2008 Dr. Woodward Solutions Solutions Solid Solution 14 Carat Gold Liquid Solution Vodka Gaseous Solution Air Solution = A homogeneous mixture
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2 Alloys Alloys An alloy is a material that contains more than one element and has the characteristic properties of a metal. Bright surface that is more inert than pure silver 92.5% Ag, 7.5% Cu Sterling Silver Silver, Ag Low melting point (275 °C) 67% Pb, 33% Sn Plumber’s Solder Lead, Pb Harder and more corrosion resistant than pure iron 80.6% Fe, 18% Cr, 1% Ni, 0.4% C Stainless Steel Iron, Fe Ductile, Takes a polish 67% Cu, 33% Zn Yellow Brass Copper, Cu Harder than pure gold 58% Au, 42% Ag 14-Carat Gold Gold, Au Properties Properties Composition Composition (by mass) (by mass) Name of Alloy Name of Alloy Primary Primary Element Substitutional Substitutional (Homogeneous) Alloys (Homogeneous) Alloys Substitutional Alloy Two or more types of metal atoms are randomly distributed over the positions occupied in the host metal.
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lect13_reel3_2pg - Alloys and Solid Solutions Chemistry 123...

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