30 Questions
What is one aspect of materials science?
Investigation of relationships between structures and properties of materials
Which level of structure involves electrons within individual atoms and interactions with their nuclei?
Subatomic
What is one way to describe the structure of a material?
Arrangement of internal components
What is one dimension of structural features in materials?
All of the above
What do material properties depend on?
Material structure
What is an example of a material property that depends on structure?
Hardness
What is a common consequence of prioritizing strength in a material?
A limited ductility
What is a major factor to consider when selecting a material, aside from its properties?
The cost of the finished product
What is a common consequence of exposing a material to elevated temperatures or corrosive environments?
A decrease in mechanical strength
What is the primary purpose of classifying materials by their properties?
To determine their applicability
What is a characteristic of mechanical properties?
They relate to deformation under an applied load or force
What is a key consideration in selecting a material, given its ideal set of properties?
The material's cost
What is the recording medium magnetized by in Magnetic Storage?
Recording head
What is the effect of adding 3 atomic % Si to Fe in Magnetic Permeability?
It makes Fe a better recording medium
What determines the transparency of Aluminum oxide?
Material structure
What causes cracks in materials?
Stress and saltwater
What can slow down crack speed in salt water?
Heat treatment
What is the title of the book where Figure 17.0 was adapted from?
Marine Corrosion, Causes, and Prevention
What is the primary material used in the new Boeing 787 fuselage?
Composites
What is the primary function of biomaterials?
To replace diseased or damaged body parts
What is the defining characteristic of semiconductors?
They have intermediate electrical properties
What is the result of the advent of integrated circuitry in the electronics and computer industries?
A total revolution in the industry over the past three decades
What is the primary characteristic of smart materials?
They sense and respond to environmental changes
What is a common feature of nanomaterials?
They have a nanoscale structure
What is the atomic packing factor for a simple cubic crystal structure?
0.52
What is the coordination number for a hexagonal close-packed (HCP) crystal structure?
12
Which element is the only one that exhibits a simple cubic (SC) crystal structure?
Polonium
What is the shape of the unit cell in a hexagonal close-packed (HCP) crystal structure?
Hexagonal
Why do none of the metallic elements have a simple cubic (SC) crystal structure?
Because of its low atomic packing factor
What is the expression that needs to be derived for a simple cubic (SC) cell?
The volume of the unit cell in terms of the atomic radius R
Explore the relationships between the structure and properties of materials, from subatomic to macroscopic levels. Learn how the arrangement of internal components affects the properties of materials.
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