Degarmo's Materials And Processes In Manufacturing
13th Edition
ISBN: 9781119492825
Author: Black, J. Temple, Kohser, Ronald A., Author.
Publisher: Wiley,
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Chapter 3, Problem 23RQ
To determine
Dominant characteristic of BCC, FCC and HCP.
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Which of the following is a characteristic of amorphous solid?
a. unsymmetrical structure
b. definite packing
c. sharp melting point
d. exhibits cleavage
At room temperature, crystal structures for cooper is of which type?
Question 29 options:
Body‑centered cubic (BCC)
Hexagonal close‑packed (HCP)
Hexagonal open‑packed (HOP)
Face‑centered cubic (FCC)
Some of the metals possess a body-centered crystal structure. Which of the following statements is correct about the structure?
a. There are atoms found at the center of each face of the cube.
b. It has a density lower than scc.
c. The corner atoms touch the center atom but not each other.
d. It has a packing efficiency (74%) greater than scc and bcc.
Chapter 3 Solutions
Degarmo's Materials And Processes In Manufacturing
Ch. 3 - What enables us to control the properties and...Ch. 3 - Â What are the next levels of structure that are...Ch. 3 - Prob. 3RQCh. 3 - Prob. 4RQCh. 3 - Prob. 5RQCh. 3 - Prob. 6RQCh. 3 - What are the three types of primary bonds, and...Ch. 3 - What are some general characteristics of...Ch. 3 - Prob. 9RQCh. 3 - Prob. 10RQ
Ch. 3 - Prob. 11RQCh. 3 - Prob. 12RQCh. 3 - Prob. 13RQCh. 3 - What are some unique property features of...Ch. 3 - Prob. 15RQCh. 3 - Prob. 16RQCh. 3 - Prob. 17RQCh. 3 - What are some of the general characteristics of...Ch. 3 - Prob. 19RQCh. 3 - Prob. 20RQCh. 3 - Prob. 21RQCh. 3 - Prob. 22RQCh. 3 - Prob. 23RQCh. 3 - Prob. 24RQCh. 3 - What is a grain? A grain boundary?Ch. 3 - Prob. 26RQCh. 3 - What is implied by a low ASTM grain�size number?...Ch. 3 - Prob. 28RQCh. 3 - What is Poissons ratio, and under what conditions...Ch. 3 - What is plastic deformation?Ch. 3 - Why do metals retain their strength during plastic...Ch. 3 - Prob. 32RQCh. 3 - Prob. 33RQCh. 3 - What is a dislocation? Using the carpet analogy,...Ch. 3 - What is the difference between an edge dislocation...Ch. 3 - What are some of the common barriers to...Ch. 3 - Prob. 37RQCh. 3 - What is the mechanism (or mechanisms) responsible...Ch. 3 - Why is a fine grain size often desired in an...Ch. 3 - What is an anisotropic property? Why might...Ch. 3 - What is the difference between brittle fracture...Ch. 3 - How does a metal increase its internal energy...Ch. 3 - What is required in order to drive the...Ch. 3 - How might the lowest recrystallization temperature...Ch. 3 - In what ways can recrystallization be used to...Ch. 3 - What is the major distinguishing feature between...Ch. 3 - What is warm working?Ch. 3 - How can deformation and recrystallization improve...Ch. 3 - Why is grain growth usually undesirable?Ch. 3 - Prob. 50RQCh. 3 - As a result of their ionic or covalent bonding,...Ch. 3 - Prob. 52RQCh. 3 - Prob. 53RQCh. 3 - What is the difference between an intrinsic...Ch. 3 - What is required for electrical conductivity in...Ch. 3 - What is required for electrical conductivity in...Ch. 3 - Brass is an alloy of copper with a certain amount...Ch. 3 - It is not uncommon for processing operations to...Ch. 3 - Polyethylene consists of fibrous molecules of...Ch. 3 - Prob. 5P
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- 21/. Explain the body centered cubic structure with a neat sketch and calculate the no of atoms per unit cell. Write any two example metals for BCC.arrow_forwardChoose one type of nanomaterial and why ? 1-carbon-based.2-metal-based.3-dendrimers.4-nanocomposites.arrow_forwarddrawing of zinc and copper crystal structuresarrow_forward
- The Cu3Au crystal structure is similar to the FCC crystal structure, but it does not have the FCC lattice. What is the crystal structure of Cu3Au if it has a basis of Au (0, 0, 0), Cu (0, 1/2,1/2), Cu (1/2, 0, 1/2), and Cu (1/2, 1/2, 0)? a. HCP b. Primitive cubic c. BCC d. BCTarrow_forwardA metal that has a crystalline structure is called amorphous true or false?arrow_forwardDiscuss how atomic structure and composition (Alloying elements) influence the properties of parent material.arrow_forward
- 5. Identify any two materials that are used to improve the properties of glass from the following options. a. Boron and Nitrides b. Boron and Calcium c. Boron and Carbides f. Boron and Germanium 6. Ideal crystals are always have imperfections in a crystal structure. Select one: O True O Falsearrow_forwardHow different of the properties of BCC vs FCC? Discuss mechanical, electrical, thermal properties.arrow_forward2. How to find what a materials crystal structure is? (FCC, BCC or neither FCC or BCC or others) 3. Describe the crystal structure of iron, which crystallizes with two equivalent metal atoms in a cubic unit cell. 4. Silver has a face-centered cubic unit cell. How many atoms of Ag are present in each unit cell? 5. Copper crystallizes in a face-centered cubic structure. What is the mass of one unit? 6. What is the edge length of a simple cubic unit cell made up of atoms having a radius of 158 pm? 7. State the number of atoms on a plane having the miller indices of 110 in a BCC unit cell.arrow_forward
- 1. What is the difference between atomic structure and crystal structure? Why are metals good conductors of heat and electricity, in general, whilst ceramics are poor? 2. Define the meaning of crystalline defects. What are the three main areas of crystal defect in the context of engineering materials and their mechanical properties? Briefly describe what each means.arrow_forwardWhat is the atomic radius of nickel (in A) if it follows an FCC crystal structure, given that Nickel has a density of 8.9 g/mL and an atomic weight of 58.7 g/mol. Solution please. Thankyouarrow_forwardThe crystal structure of aluminium is (a) body-centred cubic (b) face-centred cubic (c) close-packed hexagonal (d) body-centred tetragonalarrow_forward
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