12 Questions
What are composite materials composed of?
Two or more macro constituents that differ in shape and chemical composition
What are some industries that benefit from the use of composite materials?
Aerospace, underwater, transport, automotive, home appliance, and sporting goods industries
What are the three categories of materials that composites are composed of?
Metals, ceramics, and polymers
What is the role of the matrix in a composite material?
The matrix is the continuous phase that surrounds the dispersed phase
What determines the properties of a composite material?
The properties of the constituent phases, their relative amounts, and the geometry of the dispersed phase
What is the purpose of the polymer matrix in a fiberglass composite?
The polymer matrix holds the glass fibers together and also protects them from damage by sharing out the forces acting on them.
What is an example of a natural composite material?
Wood
What is the significance of the combination of properties in selecting a composite material?
An optimum combination of properties is usually sought rather than one particular property, in selecting a composite material.
What are the three factors that determine the properties of composite materials?
The materials used as component phases, the geometric shapes of the constituents, and the manner in which the phases interact with one another.
What is the difference between large particle and dispersion-strengthened composites?
In large particle reinforced composites, the particulate phase is harder and stiffer than the matrix, whereas in dispersion-strengthened composites, the small dispersed particles hinder the motion of dislocations.
What is the characteristic of the dispersed phase in particle-reinforced composites?
The dispersed phase is equiaxed, meaning the particle dimensions are approximately the same in all directions.
How are composites classified based on the matrix material and reinforcement geometry?
Composites are classified into three main divisions: particle-reinforced, fiber-reinforced, and structural composites.
Test your understanding of composite materials, their properties and applications in aerospace, underwater and transport industries. Learn about the advantages of composite materials over conventional materials. Evaluate your knowledge of structural materials with low densities, high strength, stiffness and abrasion resistance.
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