MMET 206 EXAM 3 || 100% Exact Answers.
What type of structure are ceramics typically? correct answers Crystalline
Ceramic compounds are formed between which kind of elements? correct answers Metallic and
nonmetallic
What are 3 examples of natural mineral compounds for ceramics? correct answers Alumina,
magnesia, zirconia
What high temperature process do ceramics have to go through and what form are they in before
the process? correct answers Sintering, Powder form
What are the 2 categories Ceramics can be broken down into? correct answers Traditional and
Advanced
What are the 3 classes of advanced ceramics? correct answers Carbide, Nitride, Oxide
Why are ceramics different than other materials? correct answers Extreme hardness, extreme
brittleness, high temp resistance, low coefficient of thermal expansion, low electrical and thermal
conductivity, high corrosion/chemical resistance, high porosity and low density EXCEPT FOR
ADVANCED CERAMICS!
A few microns of TiN coating extends the tool life by how many times? correct answers 7 times
What materials are used for hard surface coating? correct answers TiN, TiCN, ZrN, TiAlN,
Chemical vapor deposition Diamond
A knee system with thin film coating uses which 2 compounds? correct answers TiN coating and
UHMWPE
,A hip system with thin film coating uses which compounds? correct answers TiN coating with
TiAl6V4 substrate OR Al2O3 and UHMWPE (thermoset)
What are the 3 common categories for cutting tools materials? correct answers Cerment (TiC /
TiN), Cemented Carbide (WC), and Coated Cemented Carbide ( TiN coated WC)
What are the 3 characteristics of ceramics (generalize)? correct answers Mechanical, Thermal,
and electrical
Ceramics stress strain diagram in unique because of the lack of... correct answers Plastic
deformation from lack of slip systems
Ceramics have a ____ tensile strength correct answers low (easy crack propagation)
Ceramics have a ______ compressive strength correct answers High making them excellent for
compression
What percentage of ceramics fractures at < 5% tension? correct answers 0.1%
What percentage of ceramics fractures and < 5% compression? correct answers 0.6%
What is the chemical formula for Glass? correct answers SiO2 + Na2O + CaO
What is the chemical formula for chalk? correct answers CaCO3
What is another term for traditional ceramics? correct answers non-technical ceramics
What is another term for advanced engineering or structural ceramics? correct answers Technical
ceramics
, Ceramics are the only material allowing user to adjust the ______ through the manufacturing
process. correct answers Density
Which manufacturing processes can be used to improve the density of ceramics? correct answers
CIP, HP, HIP
Which manufacturing process can be used to improve the density of traditional ceramics? correct
answers CIP
Which manufacturing process can be used to improve the density of advanced ceramics? correct
answers HP and CIP/HIP
What 2 materials are composed of PURE carbon? correct answers Diamond and Graphite
What is the hardest among all materials? correct answers Diamond
Is graphite very hard or very soft? correct answers Very soft
Of diamond and graphite which is a good insulator and which is a good conductor? correct
answers Diamond-insulator, Graphite/Graphene-conductor
Why is graphite a good conductor? correct answers it has one "free" valence electron
Between diamond and graphite which has the best thermal conductivity? correct answers
diamond
_______ has a thermal conductivity that is X5 that of copper correct answers diamond
What type of structure are ceramics typically? correct answers Crystalline
Ceramic compounds are formed between which kind of elements? correct answers Metallic and
nonmetallic
What are 3 examples of natural mineral compounds for ceramics? correct answers Alumina,
magnesia, zirconia
What high temperature process do ceramics have to go through and what form are they in before
the process? correct answers Sintering, Powder form
What are the 2 categories Ceramics can be broken down into? correct answers Traditional and
Advanced
What are the 3 classes of advanced ceramics? correct answers Carbide, Nitride, Oxide
Why are ceramics different than other materials? correct answers Extreme hardness, extreme
brittleness, high temp resistance, low coefficient of thermal expansion, low electrical and thermal
conductivity, high corrosion/chemical resistance, high porosity and low density EXCEPT FOR
ADVANCED CERAMICS!
A few microns of TiN coating extends the tool life by how many times? correct answers 7 times
What materials are used for hard surface coating? correct answers TiN, TiCN, ZrN, TiAlN,
Chemical vapor deposition Diamond
A knee system with thin film coating uses which 2 compounds? correct answers TiN coating and
UHMWPE
,A hip system with thin film coating uses which compounds? correct answers TiN coating with
TiAl6V4 substrate OR Al2O3 and UHMWPE (thermoset)
What are the 3 common categories for cutting tools materials? correct answers Cerment (TiC /
TiN), Cemented Carbide (WC), and Coated Cemented Carbide ( TiN coated WC)
What are the 3 characteristics of ceramics (generalize)? correct answers Mechanical, Thermal,
and electrical
Ceramics stress strain diagram in unique because of the lack of... correct answers Plastic
deformation from lack of slip systems
Ceramics have a ____ tensile strength correct answers low (easy crack propagation)
Ceramics have a ______ compressive strength correct answers High making them excellent for
compression
What percentage of ceramics fractures at < 5% tension? correct answers 0.1%
What percentage of ceramics fractures and < 5% compression? correct answers 0.6%
What is the chemical formula for Glass? correct answers SiO2 + Na2O + CaO
What is the chemical formula for chalk? correct answers CaCO3
What is another term for traditional ceramics? correct answers non-technical ceramics
What is another term for advanced engineering or structural ceramics? correct answers Technical
ceramics
, Ceramics are the only material allowing user to adjust the ______ through the manufacturing
process. correct answers Density
Which manufacturing processes can be used to improve the density of ceramics? correct answers
CIP, HP, HIP
Which manufacturing process can be used to improve the density of traditional ceramics? correct
answers CIP
Which manufacturing process can be used to improve the density of advanced ceramics? correct
answers HP and CIP/HIP
What 2 materials are composed of PURE carbon? correct answers Diamond and Graphite
What is the hardest among all materials? correct answers Diamond
Is graphite very hard or very soft? correct answers Very soft
Of diamond and graphite which is a good insulator and which is a good conductor? correct
answers Diamond-insulator, Graphite/Graphene-conductor
Why is graphite a good conductor? correct answers it has one "free" valence electron
Between diamond and graphite which has the best thermal conductivity? correct answers
diamond
_______ has a thermal conductivity that is X5 that of copper correct answers diamond
