Classification and Characteristics of Materials Review

Silicon carbide is a high strength, hard, brittle material. It has a very good resistance to high temperatures and is normally processed as a powder. What type of material is silicon carbide?

• ceramic

• composite

• metal

• polymer

What type of material is brass

• A. A ferrous metal

• B. A ceramic material

• C. A metal alloy

• D. An organic material

Materials, such as metals, can undergo plastic deformation to be formed into new shapes. What is this characteristic known as?

• yield strength

• toughness

• stiffness

• ductility

Some machine tools have tips made from materials called cermet. Cermet consists of particles of hard ceramic material embedded in a metal matrix. What type of material is cermet?

• polymer

• metal

• composite

• ceramic

A tough material has a mixture of (a)   and .

• strength and ductility
• flexibility and brittleness

• strength and brittleness

Which of the following is a useful characteristic of ceramic materials?

• They deform plastically before failure

• They have excellent resistance to heat

• They are brittle

• They can be machined easily

Which of the following categories of materials is the best thermal and electrical conductor?

• metals

• ceramics

• composites

• polymers

Tags

NGSS.MS-PS3-4

These materials are made by using two or more materials together, to give it significantly different properties than the individual constituent materials.

• composites

• thermoplastic polymers

• ferrous metals

• polymers

Tags

NGSS.MS-PS1-3

Bending metals into new shapes is an example of elastic deformation.

• true

• false

Polyvinyl chloride is a lightweight, soft material that can easily be formed into different shapes. It is an electrical insulator and has high chemical resistance. Its internal structure consists of long organic molecules, and it can be recycled and formed into new shapes by heating. What type of material is polyvinyl chloride?

• ceramic

• thermoset polymer

• thermoplastic polymer

• composite