Pengaruh Komposisi Polyvinyl Butyral (PVB) Pada Pembuatan Bonded Magnet Terhadap Mikrostruktur, Sifat Fisis dan Magnet

LAMPIRAN 1
Peralatan dan Bahan Penelitian

1. Bahan

Serbuk Magnet NdFeB

Polyvinyl Butyral (PVB)

2. Alat

Spatula

Neraca Digital 4 Digit

Cetakan (Moulding)

Hydrolic Press

Universitas Sumatera Utara

Beaker Glass

Jangka Sorong

Gaussmeter

SEM-EDX

VSM

Magnet-Physik Impulse Magnetizer

Universitas Sumatera Utara

LAMPIRAN 2
Perhitungan Densitas Sampel Bonded Magnet NdFeB

1. Sampel untuk PVB 0%
a. Dik : m = 7,41 gr
d = 1,89 cm

t = 0,52 cm
Dit : ρ = …?
Penyelesaian :
V = d2 t
=
ρ =

x (1,89 cm)2 x 0,52 cm =1,52 cm3
=

= 4,88 gr/cm3

b. Dik : m = 7,81 gr
d = 1,89 cm
t = 0,54 cm
Dit : ρ = …?
Penyelesaian :
V = d2 t
=
ρ =

x (1,89 cm)2 x 0,54 cm =1,52 cm3
=

= 5,15 gr/cm3

1. Sampel untuk PVB 2%
a. Dik : m = 7,62 gr
d = 1,85 cm
t = 0,52 cm
Dit : ρ = …?
Penyelesaian :
V = d2 t
=
ρ =

x (1,85 cm)2 x 0,52 cm =1,38 cm3
=

= 5,49 gr/cm3

b. Dik : m = 7,64 gr
d = 1,85 cm
t = 0,49 cm
Dit : ρ = …?
Penyelesaian :
V = d2 t
=

x (1,85 cm)2 x 0,49 cm =1,31 cm3

Universitas Sumatera Utara

ρ =

=

= 5,82 gr/cm3

3. Sampel untuk PVB 4%

a. Dik : m = 7,75 gr
d = 1,89 cm
t = 0,50 cm
Dit : ρ = …?
Penyelesaian :
V = d2 t
=
ρ =

x (1,89 cm)2 x 0,50 cm =1,39 cm3
=

= 5,55 gr/cm3

b. Dik : m = 7,70 gr
d = 1,84 cm
t = 0,55 cm
Dit : ρ = …?
Penyelesaian :
V = d2 t

=
ρ =

x (1,84 cm)2 x 0,55 cm =1,45 cm3
=

= 5,29 gr/cm3

4. Sampel untuk PVB 6%
a. Dik : m = 5,80 gr
d = 1,86 cm
t = 0,42 cm
Dit : ρ = …?
Penyelesaian :
V = d2 t
=
ρ =

x (1,86 cm)2 x 0,42 cm =1,13 cm3
=

= 5,14 gr/cm3

b. Dik : m = 6,94 gr
d = 1,88 cm
t = 0,45 cm
Dit : ρ = …?
Penyelesaian :
V = d2 t
=
ρ =

x (1,88 cm)2 x 0,45 cm =1,24 cm3
=

= 5,15 gr/cm3

5. Sampel untuk PVB 7%
a. Dik : m = 6,96 gr

Universitas Sumatera Utara

d = 1,85 cm
t = 0,50 cm
Dit : ρ = …?
Penyelesaian :
V = d2 t
=
ρ =

x (1,85 cm)2 x 0,50 cm =1,36 cm3
=

= 4,88 gr/cm3

b. Dik : m = 6,68 gr
d = 1,88 cm
t = 0,50 cm
Dit : ρ = …?
Penyelesaian :

V = d2 t
=
ρ =

x (1,88 cm)2 x 0,50 cm =1,39 cm3
=

= 4,82 gr/cm3

Universitas Sumatera Utara

LAMPIRAN 3
HASIL PENGUJIAN SEM-EDX

1. PVB 2 %

Universitas Sumatera Utara

Mareanus Mendrofa

12/04/2016 14:31:54

Spectrum processing :
Peaks possibly omitted : 1.500, 1.730, 12.790 keV

Processing option : All elements analyzed (Normalised)
Number of iterations = 3

Standard :
C CaCO3 1-Jun-1999 12:00 AM
O SiO2 1-Jun-1999 12:00 AM
Fe Fe 1-Jun-1999 12:00 AM
Co Co 1-Jun-1999 12:00 AM
Nd NdF3 1-Jun-1999 12:00 AM

Element

Weight%

Atomic%

CK

8.84

33.65

OK

2.03

5.81

Fe K

60.19

49.26

Co K

4.60

3.57

Nd L

24.33

7.71

Totals

100.00

Universitas Sumatera Utara

Mareanus Mendrofa

12/04/2016 14:32:31

Spectrum processing :
No peaks omitted

Processing option : All elements analyzed (Normalised)
Number of iterations = 3

Standard :
C CaCO3 1-Jun-1999 12:00 AM
O SiO2 1-Jun-1999 12:00 AM
Fe Fe 1-Jun-1999 12:00 AM
Co Co 1-Jun-1999 12:00 AM
Nd NdF3 1-Jun-1999 12:00 AM

Element

Weight%

Atomic%

CK

6.76

29.21

OK

0.47

1.54

Fe K

59.26

55.06

Co K

4.11

3.62

Nd L

29.39

10.57

Totals

100.00

Universitas Sumatera Utara

Mareanus Mendrofa

12/04/2016 14:32:52

Spectrum processing :
No peaks omitted

Processing option : All elements analyzed (Normalised)
Number of iterations = 2

Standard :
C CaCO3 1-Jun-1999 12:00 AM
O SiO2 1-Jun-1999 12:00 AM
Fe Fe 1-Jun-1999 12:00 AM
Co Co 1-Jun-1999 12:00 AM
Nd NdF3 1-Jun-1999 12:00 AM

Element

Weight%

Atomic%

CK

22.42

60.64

OK

2.65

5.39

Fe K

44.62

25.96

Co K

3.64

2.01

Nd L

26.67

6.01

Totals

100.00

Universitas Sumatera Utara

2. PVB 4 %

Universitas Sumatera Utara

Mareanus Mendrofa

12/04/2016 14:28:47
14:28:45

Spectrum processing :
Peaks possibly omitted : 1.497, 12.780 keV

Processing option : All elements analyzed (Normalised)
Number of iterations = 3

Standard :
C CaCO3 1-Jun-1999 12:00 AM
O SiO2 1-Jun-1999 12:00 AM
Fe Fe 1-Jun-1999 12:00 AM
Co Co 1-Jun-1999 12:00 AM
Zn Zn 1-Jun-1999 12:00 AM
Nd NdF3 1-Jun-1999 12:00 AM

Element

Weight%

Atomic%

CK

7.43

29.51

OK

2.15

6.42

Fe K

60.83

51.95

Co K

4.90

3.96

Zn K

-0.03

-0.02

Nd L

24.72

8.17

Totals

100.00

Universitas Sumatera Utara

Mareanus Mendrofa

12/04/2016 14:30:40

Spectrum processing :
Peak possibly omitted : 3.317 keV

Processing option : All elements analyzed (Normalised)
Number of iterations = 5

Standard :
C CaCO3 1-Jun-1999 12:00 AM
O SiO2 1-Jun-1999 12:00 AM
Si SiO2 1-Jun-1999 12:00 AM
Cl KCl 1-Jun-1999 12:00 AM
Fe Fe 1-Jun-1999 12:00 AM
Co Co 1-Jun-1999 12:00 AM
Nd NdF3 1-Jun-1999 12:00 AM

Element

Weight%

Atomic%

CK

65.92

81.26

OK

15.85

14.67

Si K

0.10

0.05

Cl K

0.23

0.09

Universitas Sumatera Utara

Fe K

11.94

3.17

Co K

0.97

0.24

Nd L

4.99

0.51

Totals

100.00

Universitas Sumatera Utara

Mareanus Mendrofa

12/04/2016 14:31:11

Spectrum processing :
Peaks possibly omitted : 1.740, 3.310 keV

Processing option : All elements analyzed (Normalised)
Number of iterations = 4

Standard :
C CaCO3 1-Jun-1999 12:00 AM
O SiO2 1-Jun-1999 12:00 AMFe Fe 1-Jun-1999 12:00 AM
Co Co 1-Jun-1999 12:00 AM
Nd NdF3 1-Jun-1999 12:00 AM

Element

Weight%

Atomic%

CK

66.67

82.63

OK

14.20

13.22

Fe K

12.51

3.34

Co K

0.89

0.23

Nd L

5.73

0.59

Totals

100.00

Universitas Sumatera Utara

LAMPIRAN 4
DATA HASIL VSM

1. PVB 2 %

2. PVB 4 %

Universitas Sumatera Utara

LAMPIRAN 5
Karakteristik Bonded Magnet NdFeB type MQP

Universitas Sumatera Utara