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Published byGerald McDonald Modified over 9 years ago
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Lect-4 introduction to the classification of materials
Industrial Material Applications, IE251 Dr M. A. Eissa King Saud University College of Engineering Department of Industrial Engineering
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Classification of Materials
Functional Classification of Materials Classification of Materials Based on Structure Environmental and Other Effects Materials Design and Selection
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Classification of Materials
Metals and Alloys Ceramics, Glasses,and Glass-ceramics Polymers (plastics), Thermoplastics and Thermosets Composite Materials
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Functional Classification of Materials
Aerospace Biomedical Electronic Materials Energy Technology and Environmental Technology Magnetic Materials Photonic or Optical Materials Smart Materials Structural Materials
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Classification of Materials-Based on Structure
Crystalline material is a material comprised of one or many crystals. In each crystal, atoms or ions show a long-range periodic arrangement. Single crystal is a crystalline material that is made of only one crystal (there are no grain boundaries). Polycrystalline material is a material comprised of many crystals (as opposed to a single-crystal material that has only one crystal). Grains are the crystals in a polycrystalline material. Grain boundaries are regions between grains of a polycrystalline material.
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Environmental and Other Effects
Effects of following factors must be accounted for in design to ensure that components do not fail unexpectedly: Temperature Corrosion Fatigue Strain Rate
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Materials, process and shape
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The world of materials
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Basic material properties
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Mechanical properties illustrated
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Materials Data Organisation:
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