EBK MANUFACTURING ENGINEERING & TECHNOL
7th Edition
ISBN: 8220100793431
Author: KALPAKJIAN
Publisher: PEARSON
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Chapter 18, Problem 15RQ
To determine
Describe the processes of chemical and thermal temperingof glass.
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Question 6
During an extrusion process, a chromium billet at a temperature of 1300°C,
need to be extruded from a billet diameter of 13 mm to a final diameter of
0.35 mm. An extrusion die are required to withstand the temperature and
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6.1
Which ceramic material will you suggest for this application? Provide reasons
for your selection.
6.2
If the ceramic material, selected in Question 6.1 have an UTS. = 915 MPa,
porosity of 16 % and n = 4, calculate the tensile strength and elastic modulus
of the ceramic at room temperature.
Why the volume change as low as 0.5 percent can cause grain fractures during phase transformation of ceramics? Given that the elastic modulus of the ceramic is 250 GPa and Poisson ration is 0.2.
You need to calculate the thermal stress due to the volume change
Discuss under what circumstances martensite is formed and highlight its effect on mechanical properties.
Chapter 18 Solutions
EBK MANUFACTURING ENGINEERING & TECHNOL
Ch. 18 - Outline the steps involved in processing (a)...Ch. 18 - List and describe the functions of additives in...Ch. 18 - Prob. 3RQCh. 18 - Prob. 4RQCh. 18 - Prob. 5RQCh. 18 - Prob. 6RQCh. 18 - Prob. 7RQCh. 18 - Describe the methods by which sheet glass is made.Ch. 18 - Prob. 9RQCh. 18 - Prob. 10RQ
Ch. 18 - Prob. 11RQCh. 18 - Prob. 12RQCh. 18 - Prob. 13RQCh. 18 - Prob. 14RQCh. 18 - Prob. 15RQCh. 18 - Prob. 16RQCh. 18 - Prob. 17RQCh. 18 - Prob. 18QLPCh. 18 - Describe the differences and similarities in...Ch. 18 - Describe the differences and similarities in...Ch. 18 - Prob. 21QLPCh. 18 - Prob. 22QLPCh. 18 - Prob. 23QLPCh. 18 - Are any of the processes used for making discrete...Ch. 18 - Prob. 25QLPCh. 18 - Explain the phenomenon of static fatigue and how...Ch. 18 - Describe and explain the differences in the manner...Ch. 18 - Is there any flash that develops in slip casting?...Ch. 18 - Prob. 29QLPCh. 18 - Using Example 18.1, calculate (a) the porosity of...Ch. 18 - Prob. 31QTPCh. 18 - List similarities and differences between the...Ch. 18 - Prob. 34SDPCh. 18 - Prob. 35SDPCh. 18 - Prob. 36SDPCh. 18 - Prob. 37SDPCh. 18 - Prob. 38SDPCh. 18 - Prob. 39SDPCh. 18 - Prob. 40SDPCh. 18 - Describe your thoughts on the processes that can...Ch. 18 - Prob. 43SDP
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- Please no typing no internet connectionarrow_forwardWhat class of toughening mechanisms is usually at work in engineered ceramics, and why is this the case?arrow_forwardP3 Examine the properties and applications of ceramic products manufactured using the sintering, hot pressing, chemical vapour deposition (CVD) and, reaction bonding processes.arrow_forward
- wWucsuons © 1. Differentiate between the following transformations Pearlite, (b) Bainitic (c) Martensitic, based on Diffusion, Temperature range, Nuclei, Kinetics of reaction, Crystallography, Density of dislocation, Surface relief, and Growth rate.arrow_forwardWhich of the following processes are the plastic forming methods used in the shaping of traditional ceramics (three correct answers): Odry pressing O extrusion O jangling O jiggering O jolleying Oslip casting O spinningarrow_forwardWhat are the differences between mud casting, hollow casting and full casting in ceramics?arrow_forward
- Question Seven (a) For refractory ceramic materials, cite two characteristics that improve with and two characteristics that are adversely affected by increasing porosity. (b) Show that the minimum cation-to-anion radius ratio for a coordination number of 4 is 0.225. (Hint: Use the AX crystal structure, assuming the anion spheres touch in plane). (c) The unit cell for Al>Os has hexagonal symmetry with lattice parameters a = 0.4759 nm and c 1.2 nm. If the density of this material is equal to 3.99 g/cm' and is calculated according to the formula n'(E Ac+ EAA) V.NA Calculate the atomic packing factor for Al>O, given that the ionic radius for AI is 0.053 nm and i 0' is 0.140 nm. Take N, = 6.023 x 1023 atoms/mole. (d) Mention any three industrial ceramics and indicate their applications.arrow_forwardGive information about tempering heat treatment temperature stages, microstructures formed and effects on mechanical properties.arrow_forwardDefine and discuss Blow molding Process in Metal and Plastic. Can blow molding be used in Glass materials yes or no? why?arrow_forward
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