Types of material and selection properties Flashcards
3 main types of material
Metals
Polymers
Ceramics/glasses
6 families of materials
Metals Polymers Ceramics Hybrids Glasses Elastomers
6 properties of ceramics
Stiff Hard Abrasion resistant High temperature strength Good corrosion resistance Brittle
5 properties of glass
Hard Corrosion resistant Electrically insulating Transparent Brittle
4 properties of polymers + what are the properties sensitive to
Low density
Easily shaped
High strength per unit weight
Not stiff
Properties sensitive to temperature
4 properties of elastomers
Not stiff
Able to retain initial shape after being stretched
Relatively strong
Relatively tough
5 properties of metals
Tough Stiff Ductile Thermally and electrically conductive Reactive
2 issues with hybrid materials
Expensive
Difficult to shape and join
4 mechanical properties
Elastic modulus
Yield strength
Fracture toughness(k1c)
Density
4 thermal properties
Tmax
Heat capacity
Conductivity
Diffusivity
What does the thermal property diffusivity mean
A materials ability to redistribute heat through an area
3 electrical and magnetic properties
Dielectric constant
Whether magnet is soft or hard
The chemical properties of a material can be referred to as
The intrinsic resistance of a material in a given environment
Rated on a scale of 1-5
6 harsh environments
Fresh water Salt water Acids and alkalis Organic solvents Oxidation UV radiation
Material property charts can be either… and what is special about the axis
Bart charts (Log scale on y) Bubble charts (log scale on both) as compares 2 properties
