Review Lecture - Materials 1M03 Final Review Why Study the...

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Unformatted text preview: Materials 1M03 Final Review Why Study the World of Materials? Everything is made of something Materials carry functionality Strength, ductility, electrical or thermal conductivity, etc. Materials integrate with design Materials altered by time, environment Materials represent an enabling technology Engineering is the art of arranging the materials and forces of nature Henry Petroski Course Objectives By the end of this course you should understand: The main classes of materials and what distinguishes them The most important properties exhibited by materials The range of properties exhibited by materials The basis for materials selection based on properties How materials selection integrates with engineering design To get to this understanding you need these fundamentals: The underlying structure of solids from the atomic to the macroscopic scale The nature of defects and microstructure in materials The mechanical properties of each class of materials The functional properties of each class of materials How properties depend on materials structure: Bonding and crystal structure Crystalline defects Microstructure / macrostructure Materials Triangle Materials properties are controlled by underlying structure Structure (especially microstructure) controlled by processing This course focus on structure property axis Keep in mind that properties can be engineered This is what a materials engineer does Properties Processing Structure What Does This Involve? Study of materials involves understanding That design requires selection of materials based on their properties That properties of a material depend on its structure That materials exhibit a wide range of properties That material properties vary over a wide range How all this fits together Atomic Structure and Bonding Chapter 2 Reviewed nature of bonding Primary: ionic, covalent, metallic Secondary: van der Waals, hydrogen Some material properties depend only on bonding Melting temperature Elastic modulus Coefficient of thermal expansion Crystal Structure Chapter 3 Key concepts Most metals and ceramics form as crystals...
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This note was uploaded on 02/13/2010 for the course ENGINEERIN 1m03 taught by Professor Porove during the Spring '10 term at McMaster University.

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Review Lecture - Materials 1M03 Final Review Why Study the...

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