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Unformatted text preview: 3 . How far into the sheet from this highpressure side will the concentration be 2.0 kg/m 3 ? Assume a linear concentration profile. b) By what mechanism will the nitrogen diffuse? Why? 3. The diffusion coefficients for carbon in nickel are given at two temperatures: T (°C) D (m 2 /s) 600 5.5 × 10 –14 700 3.9 × 10 –13 (a) Determine the values of D and Q d . (b) What is the magnitude of D at 850°C? Study questions: Note: These are additional questions to help guide you as you read and study. I will not collect or grade study questions. Also, we will not provide solutions although we will try to work out a solution if you ask me to solve a specific problem. Chapter 5: Callister: 5.18, 6.2, 6.3, 6.6...
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This note was uploaded on 11/28/2010 for the course ENME 250 taught by Professor Shang during the Spring '10 term at Maryland.
 Spring '10
 shang

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