Lec 5 - ENGR ENGR 4250 Advanced Materials Engineering...

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ENGR 4250 ENGR 4250 – dvanced Materials Engineering Advanced Materials Engineering cture 5 Lecture 5 Material Selection Instructor: Ghaus Rizvi
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Course Goals Use the right material for the job Use the right material for the job. Understand the relation between properties , structure , and processing . Recognize new design opportunities offered by materials selection.
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The Materials Selection Process 1. Pick Application Determine required Properties Properties: mechanical, electrical, thermal, magnetic, optical, deteriorative. 2. Properties Identify candidate Material(s) Material: structure, composition. 3. Material Identify required Processing rocessing: changes tructure nd overall hape Processing: changes structure and overall shape ex: casting, sintering, vapor deposition, doping forming, joining, annealing.
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Materials Classification Metals Metal-polymer Metals-ceramic composites composites olymers Ceramics Polymers Ceramic-polymer composites Natural Materials
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Types of Materials Metals : Strong, ductile opaque, reflective. olymers/plastics Polymers/plastics : Covalent bonding Æ sharing of e s Soft, ductile, low strength, low density Optically translucent or transparent. Ceramics : ionic bonding (refractory) compounds of metallic Brittle, glassy, elastic non-conducting (insulators)
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Classes of Property • Economic: Price and availability, recyclability eneral Physical: ensity General Physical: Density • Mechanical: Modulus, Yield and tensile strength, Hardness, Fracture toughness, Fatigue strength, Creep strength, Damping.
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This note was uploaded on 10/18/2010 for the course ENGR 3360 taught by Professor Ahmadbarari during the Fall '10 term at UOIT.

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Lec 5 - ENGR ENGR 4250 Advanced Materials Engineering...

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