Nisa, Riska Ainun (2015) Sintering material Zn; Mg; TiO; variasi penambahan Vo dengan metode reaksi padat. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Telah dilakukan percobaan pembuatan keramik Zinc Titanate
(ZnTiO3) dengan menambahkan dopan V2O5 sebagai bahan cair yang
berfungsi untuk menurunkan suhu sintering samapai suhu dibawah
1000°C. Pembuatan bahan keramik ZntiO3 dilakukan dengan metode
reaksi padat (Solid State). Proses pencampuran bahan menggunakan
ballmil. Selanjutnya sampel tersebut di kalsinasi pada suhu 850°C
dengan waktu penahanan 2 jam, dicetak menjadi pelet disk dan disinter
pada suhu 1000°C, 1100°C selama 4h dan 8h dan pada suhu 900°C
selama 24h. Dari data keseluruhan, variasi waktu sintering tidak
menunjukkan perubahan nilai densitas yang mencolok. Namun variasi
penambahan zat aditif V2O5 menunjukkan bahwa semakin banyak V2O5
yang ditambahkan kedalam material, menghasilkan nilai densitas
semakin tinggi. Namun sampel dengan variasi suhu 900°C memiliki
nilai densifikasi yang paling baik karena waktu penahanan yang paling
lama yaitu 24h. Material yang memiliki waktu penahanan yang paling
lama dan densitas paling besar yang memiliki konstanta dielektrik yang
paling baik. Didapatkan nilai konstanta dielektrik untuk masing masing
sampel ZMT3 900°C murni,1%24h, 2%24h, dan 4%24h berturut-turut
yaitu memiliki nilai permitvitas relativitas (εr) sebear14,5; 23,8; 23,4;
26,8. Hal ini dapat terjadi, diduga karena dengan keadaan sampel yang
mempunyai densitas tinggi maka didalamnya hanya terdapat sedikit
close pore. Variasi komposisi dan ukuran partikel berpengaruh pada
kekuatan dielektrik, dielektrik loss, densitas dan porositas semakin kecil
ukran partikel maka kekuatan dielektrik semakin tinggi dan rugi
dielektrik semakin rendah.
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Experiment on ceramic Zinc Titanate (ZnTiO3) manufacture
has been conducted by adding dopants V2O5 as liquid material to lower
sintering temperature below 1000°C. Production of ceramic ZnTiO3 is
done with solid reaction method (SolidS). Material mixing process use
Ballmil with rotary frequency of 250rpm for 4 hours. The sample is
calcined at 850°C with 2 hours holding time, molded into a disc pellets
and sintered at 1000°C, 1100°C for 4 hours and 8 hours, and at 900°C
temperature for 24 hours. From the entire data, this research shows that
sintering time variation has no flashy changes in density values.
However, addition of additives V2O5 variation shows that the more V2O5
were added to the material, the higher density values became. But
samples with variations in temperature of 900°C has the best
densification value because it has the longest holding time, which is 24
hours. In this synthesis material, material that has the longest holding
time and the highest density is material which has the best dielectic
constant. Dielectric constant values obtained for each sample ZMT3
pure 900°C, 1% 24h, 24h 2% and 4% respectively 24h which has a
value of relativity permittivity (er) of 14.5; 23.8; 23.4; 26.8. This is
happen presumably due to the circumstances that have a high density
samples, then there are only a little close pore which can cause a
reduction in long polarization so that the value of the dielectric constant
is also high. Variation of composition and particle size effect on
dielectric strength, dielectric loss and density and the smaller particle
size, the higher the dielectric strength and the lower dielctric loss
become.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSFi 371.373 Nis s |
| Uncontrolled Keywords: | densitas,dielektrik, komposisi, zinc titanate. |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) > TA418.9 Composite materials. Laminated materials. |
| Divisions: | Faculty of Natural Science > Physics > 45201-(S1) Undergraduate Thesis |
| Depositing User: | Mr. Marsudiyana - |
| Date Deposited: | 28 Nov 2019 04:21 |
| Last Modified: | 28 Nov 2019 04:21 |
| URI: | http://repository.its.ac.id/id/eprint/72099 |
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