The Science and Engineering of Materials (MindTap Course List)
7th Edition
ISBN: 9781305076761
Author: Donald R. Askeland, Wendelin J. Wright
Publisher: Cengage Learning
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Chapter 5, Problem 5.72P
To determine
The given materials needs to be arranged in ascending order according to their self-diffusion coefficient.
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In copper, what percentage of the volume change which occurs as the specimen is heated from room temperature to its melting point is due to the increased vacancy concentration, assuming that the vacancy concentration is just below the melting point (1083 oC) is 10-4. Given: Assume that the linear thermal expansion coefficient of copper is 16.5×10-6 K-1 over the whole temperature range.
Give three examples of materials processes that rely on diffusion in solids and explain how diffusion plays a critical role for one of those processes.
Compare interstitial and vacancy atomic mechanisms for diffusion and cite two reasons why interstitial diffusion is normally more rapid than vacancy diffusion.
Chapter 5 Solutions
The Science and Engineering of Materials (MindTap Course List)
Ch. 5 - What is the driving force for diffusion?Ch. 5 - Give three examples of materials processes that...Ch. 5 - In the carburization treatment of steels, what are...Ch. 5 - Prob. 5.4PCh. 5 - Prob. 5.5PCh. 5 - Prob. 5.6PCh. 5 - Prob. 5.7PCh. 5 - A certain mechanical component is heat treated...Ch. 5 - Prob. 5.9PCh. 5 - Prob. 5.10P
Ch. 5 - Prob. 5.11PCh. 5 - Prob. 5.12PCh. 5 - Prob. 5.13PCh. 5 - Prob. 5.14PCh. 5 - Prob. 5.15PCh. 5 - Prob. 5.16PCh. 5 - Compare the diffusion coefficients of carb on in...Ch. 5 - Prob. 5.18PCh. 5 - Activation energy is sometimes expressed as...Ch. 5 - Prob. 5.20PCh. 5 - The activation energy for the diffusion of copper...Ch. 5 - Prob. 5.22PCh. 5 - Prob. 5.23PCh. 5 - Prob. 5.24PCh. 5 - Prob. 5.25PCh. 5 - Write down Fick’s first law of diffusion. Clearly...Ch. 5 - Prob. 5.27PCh. 5 - Prob. 5.28PCh. 5 - Prob. 5.29PCh. 5 - Prob. 5.30PCh. 5 - A 1-mm-thick BCC iron foil is used to separate a...Ch. 5 - Prob. 5.32PCh. 5 - Prob. 5.33PCh. 5 - A 0.001 in. BCC iron foil is used to separate a...Ch. 5 - Prob. 5.35PCh. 5 - Prob. 5.36PCh. 5 - Prob. 5.37PCh. 5 - Prob. 5.38PCh. 5 - Prob. 5.39PCh. 5 - Prob. 5.40PCh. 5 - Prob. 5.41PCh. 5 - Prob. 5.42PCh. 5 - Prob. 5.43PCh. 5 - Prob. 5.44PCh. 5 - Prob. 5.45PCh. 5 - Prob. 5.46PCh. 5 - Prob. 5.47PCh. 5 - Prob. 5.48PCh. 5 - Pure zinc is to be diffused into copper by dipping...Ch. 5 - Nitriding is a process in which nitrogen is...Ch. 5 - Determine the carburizing time necessary to...Ch. 5 - Prob. 5.52PCh. 5 - Prob. 5.53PCh. 5 - Prob. 5.54PCh. 5 - Prob. 5.55PCh. 5 - Prob. 5.56PCh. 5 - Prob. 5.57PCh. 5 - Prob. 5.58PCh. 5 - Compare the rate at which oxygen ions diffuse in...Ch. 5 - Prob. 5.60PCh. 5 - Prob. 5.61PCh. 5 - Prob. 5.62PCh. 5 - Prob. 5.63PCh. 5 - Prob. 5.64PCh. 5 - Prob. 5.65PCh. 5 - A 0.80% C steel must operate at 950°C in an...Ch. 5 - Prob. 5.67PCh. 5 - Prob. 5.68PCh. 5 - Prob. 5.69PCh. 5 - Prob. 5.70PCh. 5 - Prob. 5.71PCh. 5 - Prob. 5.72PCh. 5 - Most metals and alloys can be processed using the...Ch. 5 - Prob. 5.74PCh. 5 - Prob. 5.75PCh. 5 - Prob. 5.76PCh. 5 - A ceramic part made from MgO is sintered...Ch. 5 - Prob. 5.78PCh. 5 - What are the advantages of using hot pressing and...Ch. 5 - Prob. 5.80PCh. 5 - Prob. 5.81DPCh. 5 - Design a spherical tank, with a will thickness of...Ch. 5 - Prob. 5.83DPCh. 5 - Prob. 5.84DPCh. 5 - Prob. 5.85DPCh. 5 - Prob. 5.86CPCh. 5 - Prob. 5.87CPCh. 5 - Prob. 5.88CPCh. 5 - Prob. 5.1KP
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- Subject: Materials Science Please, the solution is the keyboard line. :Question 5 A. What are the conditions of diffusion ?mechanisms إجابتك B. What are the benefits of a stress-strain ?behavior curve إجابتكarrow_forwardAnswer in a brief and concise essay. 1. Why does diffusion in solids important?arrow_forwardwhy diffusion coefficients of carbon in BCC and FCC in iron at temperature 912 c are difference? explain ?arrow_forward
- The activation energy for the diffusion of atomic species A in metal B is 103 kJ/mol. Calculate the diffusion coefficient at 842°C, given that the value of D at 1150°C is 6.5 x 10-12 m²/s. i m²/sarrow_forwardSodium chloride (NaCI) is a ceramic that has the following crystal structure. Given: R(Na*)= 0.098 nm and R(CI")=0.181 Calculate the lonic Packing Factor (IPF) of NaCl? O Nat Select one: O a. 0.14 O b. 0.66 c. 0.51 O d. 0.74 O e. 0.41 O f. 0.47 O g. 0.21arrow_forwardDISCUSSION THEORY OF DISFFUSION AND THROUGLY EXPLAIN FIVE DIFFUSION QUANTITIES.ALSO EXPLAIN THE DIFFUSION AND HEAT TRANSFER. PLEASE GIVE 2-3 PAGE DETAILED ESSAY.arrow_forward
- In precipitation hardening, after being quenched into solution, overcooling is done and then either artificial aging is done at 180-250°C or natural aging is done at room temperature, both of which occur through diffusion, where temperature and time parameters are dominant. While 180°C and 250°C provide sufficient temperature for diffusion, is it not interesting that diffusion occurs at room temperature? This is because of the thermal energy of atoms causing them to move, which may facilitate diffusion at room temperature.arrow_forwardCompare the diffusion coefficients of carbon in BCC and FCC iron at the allotropic transformation temperature of 912°C and explain the reason for the difference in their values.arrow_forwardSodium chloride (NaCI) is a ceramic that has the following crystal structure. Given: R(Na*)= 0.098 nm and R(CI")=0.181 Calculate the lonic Packing Factor (IPF) of NaCl? O Na CH Select one: O a. 0.14 O b. 0.66 C. 0.51 O d. 0.74 O e. 0.41 O f. 0.47 g. 0.21arrow_forward
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Introduction to Diffusion in Solids; Author: Engineering and Design Solutions;https://www.youtube.com/watch?v=K_1QmKJvNjc;License: Standard youtube license