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A 95 wt% Pt-5 wt% Ni alloy is known to have an electrical resistivity of 2.35 x 10-7 ohm-m at

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A 95 wt% Pt-5 wt% Ni alloy is known to have an electrical resistivity of 2.35 x 10-7 ohm-m at room temperature (25oC). Calculate the composition of a platinum-nickel alloy that gives a room-temperature resistivity of 1.75 x 10-7 ohm-m. The room-temperature resistivity of pure platinum may be determined from the data in Table 18.1; assume that platinum and nickel form a solid solution.

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Electrical Conductivity |(2-m)-| Metal 6.8 x 107 6.0 x 107 4.3 x 107 3.8 x 107 1.6 x 10 1.0 x 10' 0.94 x 107 0.6 x 10 0.2 x 107 Silver Copper Gold Aluminum Brass (70Cu-30Zn) Iron Platinum Plain carbon steel Stainless steel

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Fundamentals of Materials Science and Engineering An Integrated Approach

Fundamentals of Materials Science and Engineering An Integrated Approach

ISBN: 978-1118061602

4th Edition

Authors: David G. Rethwisch

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Question Posted: July 05, 2011 01:42:21
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