The Science and Engineering of Materials (MindTap Course List)
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 4, Problem 4.27P

Calculate the length of the Burgers vector in the following materials:

(a) BCC niobium:

(b) FCC silver: and

(c) diamond cubic silicon.

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1. Which material is a better conductor of electricity? (a) Metals (b) Ceramics (c) Polymers (d) composite 2. Which material tends to present lower density? (a) Metals (b) Ceramics (c) Polymers (d) composite 3. Electron sea exists in (a) Hydrogen bond (b) lonic bond (c) Covalent bond (d) Metallic bond 4. Burger's vector changes with (a) Kind of dislocation (b) Length of dislocation (c) Both kind and length of dislocation (d) None 5. Metals are malleable and ductile because (a) Metals can be shine (b) Metals produce sound (c) Layers of metal atoms can slip over each other (d) Opaque. 6. Effective number of atoms in a face centered cubic (FCC) unit cell is equal to (a) 4 (b) 1 (c) 8 (d) 2 7. Lead is a metallic crystal having a structure. (a) FCC (b) ВСС (c) HCP (d) Sc 8. Amorphous solids have structure. (a) Regular (b) Linear (c) Irregular (d) Crystal 9. Percentage of free space in a body center cubic (BCC) unit cell is. (a) 30 (b) 32 (c) 28 (d) 20 10. Fiberglass is an example of (a)…
Chromium crystallizes in BCC structure. Its side equals 3 Å. Find its density. Given, the molecular mass of chromium is 52 g/mole: Avogadro's number = 0.023 × 10 23. In addition, show the position of atoms in the unit cell.
At room temperature (20°C) the electrical conductivity of Gallium phosphide (GaP) is 63 (2.m)–1, whereas the electron and hole mobility are 0.24 and 0.057 m²/V-s, respectively. a) Compute the intrinsic carrier concentration for GaP at room temperature, (q=1.6 x 10 -19 c). b) If the energy gap of GaP is 0.92 eV, calculate its conductivity at 70°C (k= 8.62 x 10 eV/K). -5

Chapter 4 Solutions

The Science and Engineering of Materials (MindTap Course List)

Ch. 4 - Prob. 4.11PCh. 4 - Prob. 4.12PCh. 4 - Prob. 4.13PCh. 4 - Prob. 4.14PCh. 4 - Prob. 4.15PCh. 4 - Prob. 4.16PCh. 4 - Prob. 4.17PCh. 4 - Prob. 4.18PCh. 4 - Write down the defect chemistry equation for...Ch. 4 - Prob. 4.20PCh. 4 - What is the Burger’s vector orientation...Ch. 4 - What is slip system and what role does it play in...Ch. 4 - Draw a Burgers circuit around the dislocation...Ch. 4 - What are the Miller indices of the slip...Ch. 4 - Prob. 4.25PCh. 4 - Prob. 4.26PCh. 4 - Calculate the length of the Burgers vector in the...Ch. 4 - Prob. 4.28PCh. 4 - Prob. 4.29PCh. 4 - The crystal shown in Figure 4-19 contains two...Ch. 4 - Prob. 4.31PCh. 4 - Prob. 4.32PCh. 4 - Prob. 4.33PCh. 4 - Prob. 4.34PCh. 4 - Prob. 4.35PCh. 4 - Prob. 4.36PCh. 4 - Prob. 4.37PCh. 4 - Prob. 4.38PCh. 4 - Prob. 4.39PCh. 4 - Prob. 4.40PCh. 4 - Prob. 4.41PCh. 4 - Prob. 4.42PCh. 4 - Prob. 4.43PCh. 4 - Prob. 4.44PCh. 4 - Why is it that single crystal and polycryst alline...Ch. 4 - Prob. 4.46PCh. 4 - Prob. 4.47PCh. 4 - Prob. 4.48PCh. 4 - Prob. 4.49PCh. 4 - Prob. 4.50PCh. 4 - Prob. 4.51PCh. 4 - Prob. 4.52PCh. 4 - Prob. 4.53PCh. 4 - Prob. 4.54PCh. 4 - Prob. 4.55PCh. 4 - Prob. 4.56PCh. 4 - Prob. 4.57PCh. 4 - Prob. 4.58PCh. 4 - Determine the ASTM grain size number for the...Ch. 4 - Certain ceramics with special dielectric...Ch. 4 - Prob. 4.61PCh. 4 - Calculate the angle of a smalla ngle grain...Ch. 4 - For BCC iron, calculate the average distance...Ch. 4 - Every time we alloy a metal, it gets stronger. Is...Ch. 4 - Prob. 4.65PCh. 4 - Prob. 4.66PCh. 4 - Prob. 4.67PCh. 4 - Prob. 4.68PCh. 4 - Prob. 4.69PCh. 4 - Prob. 4.70PCh. 4 - Prob. 4.71PCh. 4 - Prob. 4.72PCh. 4 - Prob. 4.73PCh. 4 - Prob. 4.74PCh. 4 - Prob. 4.75DPCh. 4 - You would like a metal plate with good...Ch. 4 - Prob. 4.77DPCh. 4 - Temperature dependence of vacancy conc enlralwns....Ch. 4 - Prob. 4.79CPCh. 4 - Prob. 4.80CPCh. 4 - Describe the problems associated with metal...Ch. 4 - Prob. 4.2KP
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