Why study the principles of materials science? They help us to __ new __ for use in __
applications. - Answers a. develop; materials; engineering
Materials have an impact on __ and __ - Answers b. civilization; our daily lives
The major materials families are __, __, and __. - Answers c. metals; polymers; ceramics
A material's __ and __ affect the __ of objects made of that material. - Answers d. structure;
processing; properties
Knowledge of a material's __ enable us to select the right __ for an engineering __ based on its __
requirements. - Answers e. properties; material; component; design.
Materials benefit and advance civilization by providing the basis for __ and __ applications in a
given society and culture. - Answers e. technology; technological
What technological material and tools dominated human civilization from 9000 BC to 3000 BC?
__ as a material, and tools made of __. - Answers b. stone; stone
What technological material and tools dominated human civilization from 3000 BC to 1200 BC?
__ as a material, and tools made of __. - Answers a. bronze; bronze
What technological material and tools dominated human civilization from 1200 BC to 1860 AD?
__ as a material, and tools made of __. - Answers c. iron; iron
What technological material and tools dominated human civilization from 1971 to the present
day? __ as a material, and __ made of __. - Answers d. silicon; microchips; silicon
What technological materials are likely to most significantly impact human civilization in the
21st and 22nd centuries? __ and __. - Answers e. nanomaterials; nano-biomaterials
What are the requirements for materials used for hip implants? __, __, __, and __. - Answers b.
strength; cyclic endurance; lubricity; biocompatibility
A hip implant needs a material __ to hold the acetabular cup in place. - Answers a. fixing agent
A hip implant needs a __ material to __ the acetabular cup in action. - Answers b. lubricating;
lubricate
A hip implant needs a material __ to __ the femoral stem to the femoral bone. - Answers d. fixing
agent; glue
The process for selections of a material (for a given application) include the material __ required
in the application, the material __ and __ that will fulfill the __ requirements, and the kind of __
that fit the different materials for that application. - Answers e. properties; type; structure;
,property; shape processing
Static lab-properties of a material include __, __, __ and __ properties. - Answers a. mechanical;
thermal; electrical; optical
Application-related properties of a material include __, __, __ related properties - Answers c.
cyclic loading; temperature; corrosion
The three major families of materials include __, __, and __. - Answers d. metals; ceramics;
polymers
The structural features of a material include its __, __, and __. - Answers e. bonding; composition;
atomic order
Ceramic materials are shaped by __ ceramic __ at __ temperatures of __ degrees C. - Answers a.
sintering; particles; high; >600C
Polymers are shaped by __ and __ at __ temperatures of __ degrees C. - Answers e. melting;
molding; moderate; ~200
Metals are often shaped by __ at __ temperature, about __ degrees C. - Answers b. deformation;
room; 25
The primary bonding in metals is __ bonding. - Answers b. 3-D metallic
The bonding in thermoplastic polymers is __ bonding. - Answers a. 1-D covalent + van der Waals
The primary bonding in some ceramics is __ bonding - Answers 3-D covalent
The primary bonding in other ceramics is __ bonding - Answers 3-D ionic
The mechanical properties of metal include __, __ and __. - Answers b. stiffness; strength;
ductility
The thermal properties of metals include __ conductivity. - Answers b. good thermal
The electrical properties of metals include __ electrical __. - Answers d. good; conductivity;
The melting point of metals are __, but they deform at __ degrees C. - Answers a. moderately
high; 25
Metals have primarily __ bonding. - Answers b. metallic
Thermoplastic polymers have __ bonding. - Answers c. 1-D covalent + van der Waals
The mechanical properties of polymers include __, __, __ and __. - Answers d. flexibility; ductility;
low strength; low density.
, The thermal properties of polymers include __ thermal __. - Answers b. good; insulation
The electrical properties of polymers include __ electrical __. - Answers e. good; insulation
The melting points of polymers are typically __. - Answers a. low
Ceramics have primarily __ bonding. - Answers c. Ionic or covalent
The mechanical properties of ceramics include __, __ and __. - Answers d. stiffness; strength in
compression; brittleness in tension
The thermal properties of ceramics include __ thermal __. - Answers b. good; insulation
The electrical properties of ceramics include __ electrical __. - Answers e. good; insulation
The melting points of ceramics are typically __. - Answers a. high
The metals used in a light bulb include the __ base and __ filament. - Answers b. steel; tungsten
The polymers used in a light bulb include the polymer __. - Answers d. base seal
The ceramics used in a light bulb include the __ as the porcelain __ at the base of the filament
posts. - Answers a. glass bulb; insulator
Wire drawing is used with __. - Answers b. metals
Sintering is used with __. - Answers c. ceramics
Vulcanization is used with __. - Answers a. polymers
Tube drawing is used with __. - Answers c. metals
Calendaring is used with __. - Answers d. polymers
Metals melt at __ temperatures __ degrees C. - Answers b. medium; 600-1600
Ceramics melt at __ temperatures. - Answers a. high
Polymers melt at __ temperatures. - Answers c. low
Wire drawing is a __ process that pulls a metal __ through a reducing __ with a __ force. -
Answers a. deformation; rod; die; tensile
Sintering __ a ceramic __ at __ temperatures to eliminate __ and consolidate the __ using surface
and internal __ processes. - Answers e. compresses; powder; high; pores; powder; diffusion
Vulcanization uses __ and __ in a __ to convert a sticky raw rubber material into a __ rubbery and
__ tires. - Answers c. sulfur; heat; mold; strong; tough