Matrix Systems

Which of the following is the major load carrier in dispersion-strengthened composites?

• Matrix

• Fibre

• Both matrix and fibre

• Can’t define

Which one of the following polymer types are most commonly used in polymer matrix composites?

• Elastomer

• Thermoplastic and thermoset

• Thermoplastic

• Thermoplastic, thermoset and elastomer

The matrix phase controls the environmental resistance of the composites.

• True

• False

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

• Glass-fibre reinforced

• Carbon-fibre reinforced

• Wood-fibre reinforced

• Unidirectional-fibre reinforced

Composite materials are classified based on __________.

• types of matrix

• size-and-shape of reinforcement

• both matrix and reinforcement

• none

Which of the following is a primary function of the matrix in composite materials?

• To provide structural support

• To enhance thermal conductivity

• To act as a catalyst

• To increase electrical resistance

In a matrix system, what role does the matrix play in relation to the reinforcement?

• It transfers stress to the reinforcement

• It dissolves the reinforcement

• It acts as a barrier to reinforcement

• It replaces the reinforcement

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?

• High thermal expansion

• Low density

• High strength-to-weight ratio

• Corrosion resistance

In polymer matrix composites, which property is primarily improved by the matrix?

• Electrical conductivity

• Thermal insulation

• Impact resistance

• Optical clarity