12_10

Materials Science and Engineering: An Introduction

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266 (g) Platinum is the best choice for high-temperature furnace elements to be used in oxidizing atmospheres because it is very ductile, has a relatively high melting temperature, and is highly resistant to oxidation. 12.D5 (a) Important characteristics required of metal alloys that are used for coins are as follows:
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Unformatted text preview: they must be hard, somewhat ductile, corrosion and oxidation resistant, and nontoxic. (b) Some of the metals and alloys that are used and have been used for coins are gold, silver, copper, nickel, copper-nickel alloys, and brass alloys....
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