MATERIAL PROPERTIES [Compatibility Mode].
MATERIAL PROPERTIES
(SIFAT‐SIFAT BAHAN)
Materi kuliah bahan teknik
Sifat‐sifat
Sifat
sifat material
material
• Ciri‐ciri
Ciri ciri atau kondisi yang dimiliki oleh suatu
atau kondisi yang dimiliki oleh suatu
material yang meliputi :
– Phisical
– Mechanical
– Thermal
– Electrical
– Magnetic
M
ti
– Enviromental
‐Production
Production
‐ Aesthetic
‐ Economic
Classes of property
Classes of property
No
Ab ility
1
Ec o no mic
2
G e ne ra l Physic a l
3
Me c ha nic a l
4
The rma l
5
Ele c tric a l a nd Ma g ne tic
6
Enviro nme nta l
Inte ra c tio n
7
Pro d uc tio n
8
Ae sthe tic
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Pro p e rtie s
Pric e a nd a va ila b ility
Re c yc la b ility
De nsity
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
Da mp ing
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
Re sistivity
Die le c tric c o nsta nt
Ma g ne tic p e rme a b ility
O xid a tio n
C o rro sio n
We a r
Ea se o f ma nufa c ture
Jo ining
Finishing
C o lo ur
Te xture
Fe e l
Density (berat jenis)
Density (berat jenis)
Modes of loading and states of stress
Modes of loading and states of stress
The definitions of stress, strain and elastic moduli
,
Tensile stress–strain curves for
ceramics, metals and polymers.
l
d l
Stimuli leading to strain
Stimuli leading to strain
The modulus–density
The modulus
density chart.
chart.
The modulus–relative cost chart. (The CES
software contains material prices,
software contains material prices,
regularly updated.)
what determines density and stiffness
what determines density and stiffness
Metal
Glass
Polymer
The hierarchy of electrical behavior
The hierarchy of electrical behavior
Measuring heat capacity, Cp. Its units
are J/kg.K.
/k
Measuring the thermal expansion coefficient, α.
Its units are 1/K or, more
Its units are 1/K or, more
usually, 106/K (microstrain/K).
Measuring the thermal conductivity, λ.
Its units are W/m K.
/
The linear expansion coefficient, α, plotted against the thermal
y,
conductivity, λ.
The contours show the thermal distortion parameter λ/α.
The thermal conductivity, λ, plotted against the thermal
ff
y,
/ρ p
diffusivity, a λ/ρCp.
The contours show the specific heat per unit volume ρCp.
Types of magnetic behavior
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
of magnetization.
Saturation magnetization and susceptibility for
soft magnetic materials
f
i
i l
Optically flat, reflective surfaces give specular
reflection, such that θ1 θ2.
fl i
h h θ1 θ2
Oxidation mechanisms. (a) Growth by metal diffusion
and electron conduction
(b) Growth by diffusion of oxygen and holes
The material–process compatibility matrix for shaping, joining and finishing
processes color coded by material
processes color coded by material
The classification of shape
The classification of shape
(SIFAT‐SIFAT BAHAN)
Materi kuliah bahan teknik
Sifat‐sifat
Sifat
sifat material
material
• Ciri‐ciri
Ciri ciri atau kondisi yang dimiliki oleh suatu
atau kondisi yang dimiliki oleh suatu
material yang meliputi :
– Phisical
– Mechanical
– Thermal
– Electrical
– Magnetic
M
ti
– Enviromental
‐Production
Production
‐ Aesthetic
‐ Economic
Classes of property
Classes of property
No
Ab ility
1
Ec o no mic
2
G e ne ra l Physic a l
3
Me c ha nic a l
4
The rma l
5
Ele c tric a l a nd Ma g ne tic
6
Enviro nme nta l
Inte ra c tio n
7
Pro d uc tio n
8
Ae sthe tic
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Pro p e rtie s
Pric e a nd a va ila b ility
Re c yc la b ility
De nsity
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
Da mp ing
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
Re sistivity
Die le c tric c o nsta nt
Ma g ne tic p e rme a b ility
O xid a tio n
C o rro sio n
We a r
Ea se o f ma nufa c ture
Jo ining
Finishing
C o lo ur
Te xture
Fe e l
Density (berat jenis)
Density (berat jenis)
Modes of loading and states of stress
Modes of loading and states of stress
The definitions of stress, strain and elastic moduli
,
Tensile stress–strain curves for
ceramics, metals and polymers.
l
d l
Stimuli leading to strain
Stimuli leading to strain
The modulus–density
The modulus
density chart.
chart.
The modulus–relative cost chart. (The CES
software contains material prices,
software contains material prices,
regularly updated.)
what determines density and stiffness
what determines density and stiffness
Metal
Glass
Polymer
The hierarchy of electrical behavior
The hierarchy of electrical behavior
Measuring heat capacity, Cp. Its units
are J/kg.K.
/k
Measuring the thermal expansion coefficient, α.
Its units are 1/K or, more
Its units are 1/K or, more
usually, 106/K (microstrain/K).
Measuring the thermal conductivity, λ.
Its units are W/m K.
/
The linear expansion coefficient, α, plotted against the thermal
y,
conductivity, λ.
The contours show the thermal distortion parameter λ/α.
The thermal conductivity, λ, plotted against the thermal
ff
y,
/ρ p
diffusivity, a λ/ρCp.
The contours show the specific heat per unit volume ρCp.
Types of magnetic behavior
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
of magnetization.
Saturation magnetization and susceptibility for
soft magnetic materials
f
i
i l
Optically flat, reflective surfaces give specular
reflection, such that θ1 θ2.
fl i
h h θ1 θ2
Oxidation mechanisms. (a) Growth by metal diffusion
and electron conduction
(b) Growth by diffusion of oxygen and holes
The material–process compatibility matrix for shaping, joining and finishing
processes color coded by material
processes color coded by material
The classification of shape
The classification of shape