Types Of Materials Flashcards
What is a resistant material?
A material that requires force in order to be worked or shaped
Why is understanding the properties of materials important for designers and engineers?
It helps them select from a wide range of materials to suit product specifications
What is the study of Resistant Materials concerned with?
The structural, functional, and aesthetic properties of woods, metals, plastics, ceramics, and composites
What are the major categories of physical properties of materials?
- Mechanical
- Electrical
- Chemical
- Thermal
- Magnetic
- Permeability
- Aesthetic
- Tactile
How do mechanical properties affect material behavior?
They describe how material reacts to physical forces
What is an example of a mechanical property?
Brittleness: material becomes brittle when repeatedly flexed or bent
What does electrical property refer to in materials?
The conductive property of insulation and conductivity of electricity
Fill in the blank: A ferrous metal ______ when exposed to oxygen.
rusts
What does thermal property describe?
How material responds to different temperatures, such as melting and boiling points
True or False: All materials are magnetic.
False
What does permeability refer to in materials?
The degree to which liquids or gases can pass through a material
What are aesthetic properties of materials?
Visual sensory properties of surface and form, such as color and shine
What are tactile properties?
Touch or sensory properties of a material, such as texture or scent
What does hardness measure in mechanical properties?
Resistance to scratching, cutting, and wear
Define elasticity in terms of material properties.
The ability to return to its original shape after being deformed
What is malleability?
The ability to be easily pressed, stretched, and hammered into shapes
What does ductility refer to?
The ability to be stretched without breaking
Fill in the blank: Toughness is the ability to resist ______, bending, or deforming.
breaking
What is meant by compressive strength?
The ability to stay strong under pressure
What is tensile strength?
The ability to stay strong when stretched
What happens to the structure of metal when work hardening occurs?
It alters as a result of consistent hammering or strain
Define plasticity in materials.
The ability to permanently change shape or form
What factors are considered when selecting materials?
- Function
- Condition
- Physical properties
- Working properties
