Design Materials What you see - What you get

Design materials Function is supreme –Perform to requirements –Durability – life span –Product life cycle

Material Properties Physical Mechanical Chemical Acoustical Optical Thermal

Physical Properties Characteristics free from external influence –Melting point –Density –Moisture content –Porosity –Texture –Phase –Hardness –Odor

Mechanical Properties Tensile Compression Torsion Shear Plasticity Yield Hardness Ductility

Chemical Properties Corrosion Resistance Acid/Alkali resistance UV tolerance Human poison

Acoustical Sound attenuation Reflection

Acoustical Architectural considerations

Thermal Effects of Temperature Insulation Conductivity

Optical Reactions to light Color Transparency Tones Shades

Metals Ferrous Nonferrous

Steel Iron and Carbon Wrought Stainless

Copper Alloys Copper Bronze Brass

Aluminum

The Rest Zinc Magnesium Titanium Monel Refractory –Molybdenum –Tantalum –Tungsten

Plastics Coal, Tar, Petroleum, Milk, Wood, Soy

Plastics Thermosetting Thermoplastic

Woods

Basic Types Hardwood –Stronger –Bold grain patterns –Toughness Softwood –Easy to machine –Less expensive –Provide contrast –Manmade products

Ceramics Non metallic Inorganic High temperatures to manufacture Plastic before firing Good tensile strength High compressive strength Chemically resistant High dielectric properties