Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Textbook Question
Chapter 8, Problem 36QLP
Perform an Internet search and determine the chemistry of glass used for (a) fiber-optic communication lines, (b) crystal glassware, and (c) high-strength glass fibers.
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You are working as a quality control engineer in a glass manufacturing company. What characterization technique would you use for routine and quick analysis to decide whether any impurities from the glass melting furnaces are introduced to your glass products? Explain your reasoning
Q7.
Explain in general terms, why many polymers and some ceramic glasses have an
amorphous
or semicrystalline structure.
Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) are
powerful tools for imaging the micro- and nano-structure of a material.
(a) Which technique provides higher imaging resolution, SEM or TEM?
(b) Why does this technique provide higher resolution? Describe your reasoning.
(c) A polymer sample is mounted on a solid metal stub and coated with a conductive
layer. Which electron microscopy technique is the sample prepared for?
(d) Why do we need a conductive coating on the polymer sample? Explain in terms of
both the material and the imaging technique.
(e) What information could Energy Dispersive X-ray (EDX) spectroscopy tell us about
the sample?
(f) Atomic Force Microscopy (AFM) enables high resolution surface imaging and
measuring surface properties of samples. Describe one way that this (stiffness
mapping) procedure can be done?
Chapter 8 Solutions
Manufacturing Engineering & Technology
Ch. 8 - What is a ceramic?Ch. 8 - List the major differences between the properties...Ch. 8 - List the major types of ceramics that are useful...Ch. 8 - What do the following materials typically consist...Ch. 8 - Prob. 5RQCh. 8 - Prob. 6RQCh. 8 - Prob. 7RQCh. 8 - Prob. 8RQCh. 8 - Prob. 9RQCh. 8 - Prob. 10RQ
Ch. 8 - Prob. 11RQCh. 8 - Prob. 12RQCh. 8 - Prob. 13RQCh. 8 - Prob. 14RQCh. 8 - Prob. 15RQCh. 8 - Prob. 16RQCh. 8 - Prob. 17RQCh. 8 - Prob. 18RQCh. 8 - Explain why ceramics are weaker in tension than in...Ch. 8 - What are the advantages of cermets? Suggest...Ch. 8 - Explain why the electrical and thermal...Ch. 8 - Prob. 22QLPCh. 8 - Prob. 23QLPCh. 8 - Explain why the mechanical properties of ceramics...Ch. 8 - Explain how ceramics can be made tougher.Ch. 8 - List and describe situations in which static...Ch. 8 - What properties are important in making...Ch. 8 - A large variety of glasses is now available. Why...Ch. 8 - Prob. 29QLPCh. 8 - Prob. 30QLPCh. 8 - Aluminum oxide and PSZ are described as white in...Ch. 8 - Why does the strength of a ceramic part depend on...Ch. 8 - In old castles and churches in Europe, the glass...Ch. 8 - Prob. 34QLPCh. 8 - Prob. 35QLPCh. 8 - Perform an Internet search and determine the...Ch. 8 - Prob. 37QLPCh. 8 - Prob. 38QLPCh. 8 - In a fully dense ceramic, UTSO = 200 MPa and EO =...Ch. 8 - Plot the UTS, E, and k values for ceramics as a...Ch. 8 - What would be the tensile strength and the modulus...Ch. 8 - Prob. 42QTPCh. 8 - Prob. 43QTPCh. 8 - Prob. 44QTPCh. 8 - Prob. 45SDPCh. 8 - Prob. 46SDPCh. 8 - Prob. 47SDPCh. 8 - Prob. 48SDPCh. 8 - Prob. 49SDPCh. 8 - Prob. 50SDPCh. 8 - Conduct a literature search and write a brief...Ch. 8 - Prob. 52SDPCh. 8 - Prob. 53SDPCh. 8 - It has been noted that the strength of brittle...Ch. 8 - Prob. 55SDP
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- Some of our modern kitchen cookware is made of ceramic materials. (a) List at least three important characteristics required of a material to be used for this application. (b) Make a comparison of three ceramic materials as to their relative properties and, in addition, to cost. (c) On the basis of this comparison, select the material most suitable for the cookware.arrow_forwardPolyethylene Terephthalate or PET is a linear semicrystalline thermoplastic polymer widely used in food packaging. Calculate the density of this polymer when the total crystallinity is 65.4%. The density for the totally amorphous PET material is 1.33 g/cm³, and the density of the totally crystalline is 1.44 g/cm³. 1.38 g/cm³ 1.40 g/cm³ 1.42 g/cm³ 1.80 g/cm³ None of the abovearrow_forwardExplain the following fiber Materials in detail. (i) Aramid Fibers (ii) Alumina (iii) Carbon Fiberarrow_forward
- Nylon 6,6 is a thermoplastic polymer with high mechanical strength, high resistance to chemical environments, and good stability under heat. Therefore, it is well suited to be used in 3D structural objects. A cylindrical nylon 6,6 pipe is made by injection molding. The pipe is 1 m long with an outer diameter of 8cm, and a thickness of 2mm. The crystallinity of the pipe is 25%. The density and associated percent crystallinity for two nylon 6,6 samples are measured as below: ρ(g/cm3) crystallinity (%) 1.190 67 1.155 44 Calculate the density of this pipe, which has 25% crystallinity.arrow_forwardNylon 6,6 is a thermoplastic polymer with high mechanical strength, high resistance to chemical environments, and good stability under heat. Therefore, it is well suited to be used in 3D structural objects. A cylindrical nylon 6,6 pipe is made by injection molding. The pipe is 1 m long with an outer diameter of 8cm, and a thickness of 2mm. The crystallinity of the pipe is 25%. The density and associated percent crystallinity for two nylon 6,6 samples are measured as below: ρ(g/cm3) crystallinity (%) 1.190 67 1.155 44 If the degree of polymerization is 500, calculate the number of chains in the pipe. (Assume the chains are equal in length).arrow_forwardIllustrate the difference between crystalline and amorphous polymers structure and explain the effect of this difference on their properties and applications. Show examples of polymers that are not crystalline or semi-crystalline.arrow_forward
- Why do crystalline polymers tend to have higher density than amorphous ones?arrow_forwardIdentify any two materials that are used to improve the properties of glass from the following options. O Boron and Nitrides O Boron and Calcium O Boron and Carbides O Boron and Germaniumarrow_forwardThank youarrow_forward
- Is the following figure showing continuous or noncontinuous fibers? What are the differences in making carbon fibers and glass fibersarrow_forwardBriefly explain why the properties of polycrystalline materials are most often isotropic.arrow_forwardQuestion 1 (а) List TWO (2) characteristics of ceramic. (b) Using the abbreviated quantum number notation (s, p, d, f), write the electronic configurations of the following ions: (i) Ni2* (Atomic number for Nickel = 28) (ii) Mn (Atomic number for Manganese = 22) -2 (ii) Se" (Atomic number for Selenium = 34) ABCarrow_forward
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