Explain ductility, strength and elastic modulus. Explain and compare these for ceramics and metals.

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samet mamat answered 8 months ago

3. Describe step-by-step brittle fracture of some metals and ceramics with poor ductility and toughness. In...

3. Describe step-by-step brittle fracture of some metals and ceramics with poor ductility and toughness. In discussion highlight and use relevant terms such as transgranular, Chevron pattern and others. Text Book- The Science and Engineering of Materials, Askeland et al. (seven edition

Describe step-by-step brittle fracture of some metals and ceramics with poor ductility and toughness. In discussion...

Describe step-by-step brittle fracture of some metals and ceramics with poor ductility and toughness. In discussion highlight and use relevant terms such as transgranular, Chevron pattern and others. Answer should jot exceds more than half a page. Thank you

Regarding the fracture mechanism of metals, polymers and ceramics (a) Explain why FCC metals show a...

Regarding the fracture mechanism of metals, polymers and ceramics (a) Explain why FCC metals show a ductile fracture even at low temperatures while BCC metals do not. (b) What is crazing? What can you say about the Poisson’s ratio of the crazed material? (c) Generally, in ceramics, intergranular fracture is preferred to cleavage fracture; however, in metals, transgranular fracture is the preferred mechanism for brittle failure. Why? Use a physical reason supported with an equation in your answer.

Explain why metals are electrically conducting and ceramics are good insulators.

A) Explain the general responses of ceramics, metals and polymers to mechanical and electrical loads in...

A) Explain the general responses of ceramics, metals and polymers to mechanical and electrical loads in terms of both primary and secondly chemical bonds B) Classify the following materials as a polymer, metal, ceramic, or composite: Boron Nitride, Bricks, Plexiglas, Concrete and Manganese.

Briefly explain how each of the following influences the elastic modulus of a semicrystalline polymer and...

Briefly explain how each of the following influences the elastic modulus of a semicrystalline polymer and why: (a) Molecular weight (b) Degree of crystallinity (c) Sample crystallized under strong flow conditions

Cite the major differences in room temperature mechanical characteristics for metals and ceramics.

Describe the effect of both temperature and strain rate on the stiffness, strength and ductility of...

Describe the effect of both temperature and strain rate on the stiffness, strength and ductility of viscoelastic polymer materials.

Why do amorphous solids have high strength and low ductility?

Which types of interatomic and intermolecular forces dominate the assembly of metals, ceramics, and polymers? How...

Which types of interatomic and intermolecular forces dominate the assembly of metals, ceramics, and polymers? How do these interatomic and intermolecular forces manifest at the macroscale (i.e. the mechanical properties of these classes of materials)?

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