Main Types of Industrial Material

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Presentation transcript:

Main Types of Industrial Material Metals and Alloys Ceramics Polymeric Materials Composites

Mohs Scale of hardness 1 Talc 2 Gypsum 3 Calcite 9 4 Fluorite 21 5 Apatite 48 6 Feldspar 72 7 Quartz 100 8 Topaz 200 Corundum 400 10 Diamond 1600 Mohs Scale of hardness

Properties of Materials Strength Hardness Toughness Ductility /malleability Elastic Modulus Density Electrical Conductivity Magnetic Properties Nuclear Properties Melting Point High Temperature Strength / Hardness Thermal Conductivity Thermal Expansion Corrosion / Oxidation Resistance

Hardness Test

Indentation Hardness Tests

Tensile Test

Tensile Test Machine

Tensile Test Graph

Tensile Strength at elevated Temperatures

Toughness (inverse of Brittleness)

Toughness (inverse of Brittleness)

Broken Notch-Toughness Specimens

Properties and Structure The properties of a material, i.e., its hardness, strength, etc. are all dependent on the chemical constituents, and that how these constituents are distributed in the body of the material, i.e., on the ‘microstructure’. The microstructure of most materials can be modified by various techniques.