Manufacturing Engineering & Technology
7th Edition
ISBN: 9780133128741
Author: Serope Kalpakjian, Steven Schmid
Publisher: Prentice Hall
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Textbook Question
Chapter 8, Problem 32QLP
Why does the strength of a ceramic part depend on its size?
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Typical mechanical properties of ceramics include high hardness, brittleness, and no ductility.
Question 3 options:
True
False
The flexural strength and associated volume fraction porosity for two specimens of the same ceramic material are as follows:
Ofs (MPa) P
100
50
i
0.05
(a) Compute the flexural strength for a completely nonporous specimen of this material.
0.20
i
MPa
(b) Compute the flexural strength for a 0.30 volume fraction porosity.
MPa
Match these materials to which ceramic group they best belong in. Each one will only be used once.
- A. B. C.
Brick
- A. B. C.
Window Glass
- A. B. C.
Corning ware
A.
Crystalline ceramics
B.
Glasses
C.
Glass-ceramics
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
- The modulus of elasticity for a ceramic material having 4.1 vol% porosity is 323 GPa. (a) Calculate the modulus of elasticity (in GPa) for the nonporous material. E = i E = (b) Calculate the modulus of elasticity (in GPa) for 11.7 vol% porosity. GPa i GPaarrow_forwardIn a research lab where ceramics are heat treated for further application, you are presented with two unlabelled specimens (A, B) of bio-ceramics and told that they have the same basic chemical composition, but one has been sintered properly and the other has not been sintered at all. Sample A has larger pore size, and somewhat smaller grains than Sample B. If all ceramics have to be heat treated, which of the specimens need to go into the furnace? Select one: a. Sample A to go into furnace O b. Neither Sample A nor B to go into the furnace O c. Both Samples A and B to go into the furnace Od. Sample B to go into furnacearrow_forwardCeramics are used in die blanks and in cutting tools. Which main material properties of the ceramics used for these applications make them well suited for this purpose? Select one or more: a. Low wear resistance b. High ductility c. Low coefficient of friction d. High wear resistance e. High hardnessarrow_forward
- If crack-tip plasticity is not to blame for ceramic fatigue, what mechanism is responsible?arrow_forwardWhich ceramic material is best suited for the following applications? * Al:O3 Sio: UO: ZrO: Insulators in spark plugs Oxygen gas sensors Nuclear Fuel Optical fibersarrow_forwardd) Describe the slip casting process in traditional ceramics processing. Also, what is the range of water content (in percentages) in the ceramic power mixture is needed for slip casting, and why this particular degree of wetness or dryness chosen for this type of casting process? (CO2, PO1, C2)arrow_forward
- What are the differences between mud casting, hollow casting and full casting in ceramics?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_forwardFor each of the following - choose the best response For Traditional Vs Advanced Ceramics Group of answer choices Coarser structure Less expensive Made from natural raw materials Higher strength Higher fracture toughnessarrow_forward
- a) state the common properties of ceramic materials. b) State and explain the components in traditional ceramics. Give example of each component. c) State tje main steps in slip casting process. Sketch the slip casting process for fabricating porous ceramic productarrow_forwardWhich of the following is/are TRUE about the comparison of metal and ceramic properties? O Metals: Uniform atoms, Ceramics: different sizes of atoms O Metals: Good Ductility, Ceramics: Brittle O Metals: crystal structure, Ceramics: crystal structure, O Metals: many free electrons, Ceramics: captive electronsarrow_forwardQuestion 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_forward
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