Lecture 5 - ENGR 4250 Advanced Materials Engineering...

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ENGR 4250 – Advanced Materials Engineering Lecture 5 Material Selection Chapter 22 of recommended Textbook (7 th Edition) Dr. A. Keshavarz - ENGR 4250U
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Use the right material for the job. Understand the relation between properties , structure , and processing . Recognize new design opportunities offered by materials selection. Course Goals Dr. A. Keshavarz - ENGR 4250U
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1. Pick Application Determine required Properties 2. Properties Identify candidate Material(s) 3. Material Identify required Processing Processing: changes structure and overall shape ex: casting, sintering, vapor deposition, doping forming, joining, annealing. Properties: mechanical, electrical, thermal, magnetic, optical, deteriorative. Material: structure, composition. The Materials Selection Process Dr. A. Keshavarz - ENGR 4250U
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Materials Classification Metals Polymers Ceramics Metal-polymer composites Metals-ceramic composites Ceramic-polymer composites Natural Materials Dr. A. Keshavarz - ENGR 4250U
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Types of Materials Metals : Strong, ductile opaque, reflective. Polymers/plastics : Covalent bonding 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) Dr. A. Keshavarz - ENGR 4250U
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Current Prices on the web: e.g., http://www.metalprices.com -- Short term trends: fluctuations due to supply/demand. -- Long term trend:
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This note was uploaded on 06/02/2011 for the course ECONMICS ECN204 taught by Professor Brenan during the Spring '08 term at Ryerson.

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Lecture 5 - ENGR 4250 Advanced Materials Engineering...

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