MSE 201 Practice Exam #3 Review

Set of vocabulary flashcards created for MSE 201 Practice Exam #3 to help review key terms and concepts.

Ionic Ceramic Defect

A defect that cannot have substitutional impurity anion and a single missing positive ion.

AX Structure

An AX structure refers to a specific kind of crystal structure and specifies the stoichiometry.

Silicate Materials Coordination

Silicate materials are best described by tetrahedral Si coordination.

Tempered Glass Fracture Resistance

Tempered glass resists fracture due to the material containing residual stresses.

Ideal Carbon Structures

Graphene, fullerene, and diamond are ideal structures that contain only carbon.

Covalently-bonded Ceramic Structure Determination

The structure of a covalently-bonded ceramic material is most likely determined by bond hybridization.

Elastomers

Elastomers have high recoverable elastic strains and a very low modulus of elasticity.

Semi-crystalline Polymer Characteristics

A semi-crystalline polymer will exhibit a glass transition temperature, melting temperature, and supercooled liquid regions.

Flexibility of Polymer Chains

The flexibility of polymer chains is primarily due to C-C bonds.

Thermoplastic Brittleness

The deformation behavior of a thermoplastic becomes increasingly brittle as temperature decreases.

Particle-reinforced Composite Example

An example of a particle-reinforced composite is a cermet.

Matrix Phase Purpose

The purpose of the matrix phase is to transfer stress to other phases.

Phase Transition Effects on Nucleation

As the temperature decreases below that for a phase transition, the rate of nucleation increases.

Ductile Eutectoid Microstructure

The most ductile eutectoid microstructure is spheroidite.

TTT Diagrams Use

TTT diagrams are useful for determining how quickly to cool a material to obtain a desired microstructure.

Graphical Representation of Copolymer Types

Different types of copolymers include random, alternating, graft, and block copolymers.

Polyethylene Polymer Characteristics

Polyethylene has a distribution of different sized polymers characterized by molecular weight, number fraction, and weight fraction.

Nitrile Rubber Molecular Weight Calculation

The number-average molecular weight of a random nitrile rubber can be determined based on repeat units and degree of polymerization.

Glass Fiber-reinforced Composite

The glass fiber-reinforced composite tensile strength and elastic modulus depend on the volume fraction of fibers.

Iron-Carbon Alloy Transformation

Austenite must be cooled rapidly to a temperature below the eutectoid temperature for transformation to martensite.