Matrix Systems

What two substances must a composite material contain?

• A matrix and a reinforcement

• Iron and another metal

• Organic and inorganic substances

• Clay and sand

Tags

NGSS.MS-ETS1-1

Which of the following is used as reinforcement in advanced polymer matrix composite?

• Glass-fiber reinforced composite

• Carbon-fiber reinforced composite

• Wood-fiber reinforced composite

• Unidirectional-fiber reinforced composite

When fibers are used as a dispersed phase for the reinforcement of matrices, the resultant composites are known as ____________.

• glass-fiber reinforced composites

• carbon-fiber reinforced composites

• wood-fiber reinforced composites

• unidirectional-fiber reinforced composites

Which of the following is a characteristic of a matrix system in materials science?

• High thermal conductivity

• Low density

• Ability to transfer stress to fibers

• High electrical resistance

Tags

NGSS.HS-PS2-6

In a polymer matrix composite, what role does the matrix primarily serve?

• To provide electrical conductivity

• To bind the fibers together

• To act as a thermal insulator

• To increase the weight of the composite

Which type of matrix is commonly used in high-temperature applications?

• Polymer matrix

• Metal matrix

• Ceramic matrix

• Glass matrix

What is the main advantage of using a metal matrix in composites?

• Corrosion resistance

• High strength-to-weight ratio

• Thermal expansion

• Electrical insulation

In the context of matrix systems, what does the term 'isotropic' mean?

• Having uniform properties in all directions

• Having different properties in different directions

• Being able to conduct electricity

• Being resistant to heat

Which of the following is a common method for testing the mechanical properties of matrix composites?

• Tensile testing

• Thermal conductivity testing

• Electrical resistance testing

• Optical microscopy

What is a primary challenge in the manufacturing of ceramic matrix composites?

• High cost

• Low thermal resistance

• Poor electrical conductivity

• Difficulty in processing

Tags

NGSS.HS-ETS1-3