MATERIAL PROPERTIES [Compatibility Mode].

MATERIAL

 

PROPERTIES

(SIFAT

‐

SIFAT

 

BAHAN)

Sifat

‐

sifat material

Sifat sifat

 

material

•

Ciri

Ciri ciri

‐

ciri atau kondisi yang dimiliki oleh suatu

 

atau

 

kondisi

 

yang

 

dimiliki

 

oleh

 

suatu

 

material

 

yang

 

meliputi

 

:

–

Phisical

Production

–

Phisical

‐

Production

–

Mechanical

‐

Aesthetic

Thermal

Economic

–

Thermal

‐

Economic

–

Electrical

M

ti

–

Magnetic

Classes of property

Classes

 

of

 

property

No Ab ility • Pro p e rtie s

1 Ec o no mic • Pric e a nd a va ila b ility • Re c yc la b ility

2 G e ne ra l Physic a l • De nsity 3 Me c ha nic a l • Mo d ulus

• Yie ld a nd te nsile stre ng th • Ha rd ne ss

• Fra c ture to ug hne ss • Fa tig ue stre ng th • C re e p stre ng th • C re e p stre ng th • Da mp ing

4 The rma l • The rma l c o nd uc tivity • Sp e c ific he a t

• The rma l e xp a nsio n c o e ffic ie nt • The rma l e xp a nsio n c o e ffic ie nt 5 Ele c tric a l a nd Ma g ne tic • Re sistivity

• Die le c tric c o nsta nt • Ma g ne tic p e rme a b ility 6 Enviro nme nta l • O xid a tio n

Inte ra c tio n • C o rro sio n • We a r

7 Pro d uc tio n • Ea se o f ma nufa c ture • Jo ining

• Finishing 8 Ae sthe tic • C o lo ur

Density (berat jenis)

Tensile

 

stress–strain

 

curves

 

for

 

l

d

l

Stimuli leading to strain

The modulus–density chart.

The

 

modulus–relative

 

cost

 

chart.

 

(The

 

CES

 

software contains material prices,

what determines density and stiffness

what

 

determines

 

density

 

and

 

stiffness

Metal

Glass

Polymer

The hierarchy of electrical behavior

Measuring

 

heat

 

capacity,

 

Cp.

 

Its

 

units

 

/k

Measuring

 

the

 

thermal

 

expansion

 

coefficient,

 

α

.

 

Its units are 1/K or, more

Its

 

units

 

are

 

1/K

 

or,

 

more

Measuring

 

the

 

thermal

 

conductivity,

 

λ

.

 

/

The

 

linear

 

expansion

 

coefficient,

 

α

,

 

plotted

 

against

 

the

 

thermal

 

conductivity,

y,

 λ

.

The

 

thermal

 

conductivity,

 

λ

,

 

plotted

 

against

 

the

 

thermal

 

diffusivity,

ff

y,

 

a

  λ

/

/

ρ

ρ

Cp.

p

Types of magnetic behavior

Domains

 

allow

 

a

 

compromise:

 

the

 

cancelation

 

of

 

the

 

external

 

field

 

while

retaining

 

magnetization

 

of

 

the

 

material

 

itself.

 

The

 

arrows

 

show

 

the

 

direction

Saturation

 

magnetization

 

and

 

susceptibility

 

for

 

f

i

i l

Optically

 

flat,

 

reflective

 

surfaces

 

give

 

specular

 

fl

i

h h

θ

1

θ

2

Oxidation

 

mechanisms.

 

(a)

 

Growth

 

by

 

metal

 

diffusion

 

and

 

electron

 

conduction

The

 

material–process

 

compatibility

 

matrix

 

for

 

shaping,

 

joining

 

and

 

finishing

processes color coded by material

The classification of shape