10 - Lecture 01

MatE 10: Lecture 01 MRSPoblete

Materials Engineering 10:

Engineering Materials

Lecture 01

Introduction to Engineering Materials


graphite

diamond


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


vsScientist

Materials

EngineerMaterials

Develops or synthesizes new materials

Creates new products or systems using existing

materials and develops new processing techniques


Materials Science and Engineering

Resultant Knowledge of

Structure, Properties,

Processing & Performance

Basic Knowledge of

Materials

Applied Knowledge of

Materials


Materials Science and Engineering


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


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


What is a MATERIAL?

“elements, constituents or substances of which something is composed or can be made of” –

Merriam Webster

STUFF


Metals Ceramics Polymers

Three Monolithic Materials


Metals

crystalline

(dense)

stiff

and strong

ductile

conductors of

electricity and

heat

opaque

desirable

magnetic

properties

resistant

to

fracture


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


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


Brain Game!

Discuss the pros and cons

of using ceramics, metals

and polymers as

containers for carbonated

beverage.


Composites

COMPOSITES

metals

ceramics

polymers


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


Advanced Materials

May either be

enhanced traditional

or newly developed

high performance

materials


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.


Synthesis

Materials

Metals

Polymers

CompositesAdvanced Materials

Ceramics

Documents

10 - Lecture 01