10 - Lecture 01
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Transcript of 10 - Lecture 01
MatE 10: Lecture 01 MRSPoblete
Materials Engineering 10:
Engineering Materials
Lecture 01
Introduction to Engineering Materials
MatE 10: Lecture 01 MRSPoblete
graphite
diamond
MatE 10: Lecture 01 MRSPoblete
vsScience
Materials
EngineeringMaterials
Investigating the relationships between
structures and properties of materials
Designing the structure of a material to produce
a pre-determined set of properties
MatE 10: Lecture 01 MRSPoblete
vsScientist
Materials
EngineerMaterials
Develops or synthesizes new materials
Creates new products or systems using existing
materials and develops new processing techniques
MatE 10: Lecture 01 MRSPoblete
Materials Science and Engineering
Resultant Knowledge of
Structure, Properties,
Processing & Performance
Basic Knowledge of
Materials
Applied Knowledge of
Materials
MatE 10: Lecture 01 MRSPoblete
Materials Science and Engineering
MatE 10: Lecture 01 MRSPoblete
MSE Tetrahedron
arrangement of material’s
internal components
response to imposed
stimulus
Operation or treatment that
results to alteration/
fabrication of the product
ability to function efficiently
for the intended application
MatE 10: Lecture 01 MRSPoblete
graphite
diamondBoth are made up of carbon,
but why do these materials
have behave differently?
MatE 10: Lecture 01 MRSPobletedia
mond
property = f(structure)
gra
phit
e
MatE 10: Lecture 01 MRSPoblete
What is a MATERIAL?
“elements, constituents or substances of which something is composed or can be made of” –
Merriam Webster
STUFF
MatE 10: Lecture 01 MRSPoblete
Metals Ceramics Polymers
Three Monolithic Materials
MatE 10: Lecture 01 MRSPoblete
Metals
crystalline
(dense)
stiff
and strong
ductile
conductors of
electricity and
heat
opaque
desirable
magnetic
properties
resistant
to
fracture
MatE 10: Lecture 01 MRSPoblete
Ceramics
stiff
and strong
hard
extremely
brittle
highly
susceptible
to fracture
insulative to
electricity
and heat
Refractory
(high Tm)
May be
transparent,
transluscent
or opaque
MatE 10: Lecture 01 MRSPoblete
Polymers
amorphous
macromolecules
low density
not stiff
nor strong
extremely
ductile & pliable
chemically inert
and unreactive
softens/decomposes
at modest
temperatures
low electrical
conductivities
non-magnetic
MatE 10: Lecture 01 MRSPoblete
Brain Game!
Discuss the pros and cons
of using ceramics, metals
and polymers as
containers for carbonated
beverage.
MatE 10: Lecture 01 MRSPoblete
Composites
COMPOSITES
metals
ceramics
polymers
MatE 10: Lecture 01 MRSPoblete
Composites: Fiber glass
strong and stiff
but brittle
ductile but weak
and flexible
stiff, strong,
flexible, ductile, of low density
Epoxy or
Polyester
Glass FiberDESIGN GOAL:
Achieve combination
of properties and
incorporate best
characteristics of
component materials
MatE 10: Lecture 01 MRSPoblete
Advanced Materials
May either be
enhanced traditional
or newly developed
high performance
materials
MatE 10: Lecture 01 MRSPoblete
Synthesis
Materials Science
Investigating the relationships between structures and properties of materials
Materials Engineering
Designing the structure of a material to produce a pre-
determined set of properties
property = f(structure)
Engineering materials are STUFFS designed to
function for a specific purpose.
MatE 10: Lecture 01 MRSPoblete
Synthesis
Materials
Metals
Polymers
CompositesAdvanced Materials
Ceramics