Karakterisasi mikrostruktural material penyerap gelombang elektromagnetik senyawa LaxBa(1-x)Fe0.25Mn0.5Ti0.25O3, (x = 0, 0.25, 0.75, 1) = Microstructural characterization of LaxBa(1-x)Fe0.25Mn0.5Ti0.25O3, (x = 0, 0.25, 0.75, 1), an electromagnetic wave absorbance material
| Main Authors: | Endyas Pratitajati, author, Add author: Azwar Manaf, supervisor, Add author: Muhammad Hikam, examiner, Add author: Dewa Nyoman Adnyana, examiner, Add author: Ridwan, examiner |
|---|---|
| Format: | Masters Bachelors |
| Terbitan: |
, 2012
|
| Subjects: | |
| Online Access: |
https://lib.ui.ac.id/detail?id=20317239 |
| ctrlnum |
20317239 |
|---|---|
| fullrecord |
<?xml version="1.0"?>
<dc schemaLocation="http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd"><type>Thesis:Masters</type><title>Karakterisasi mikrostruktural material penyerap gelombang elektromagnetik senyawa LaxBa(1-x)Fe0.25Mn0.5Ti0.25O3, (x = 0, 0.25, 0.75, 1) = Microstructural characterization of LaxBa(1-x)Fe0.25Mn0.5Ti0.25O3, (x = 0, 0.25, 0.75, 1), an electromagnetic wave absorbance material</title><creator>Endyas Pratitajati, author</creator><creator>Add author: Azwar Manaf, supervisor</creator><creator>Add author: Muhammad Hikam, examiner</creator><creator>Add author: Dewa Nyoman Adnyana, examiner</creator><creator>Add author: Ridwan, examiner</creator><publisher/><date>2012</date><subject>Electromagnetic waves</subject><description><b>ABSTRAK</b><br>
Pertumbuhan butir pada temperatur 1100oC, 1200oC, dan 1300oCkristal LaxBa(1-
x)Fe0.25Mn0.5Ti0.25O3 dipelajari. Material sampel dipreparasi menggunakan teknik
pengaloyan mekanik (mechanical alloying) dengan waktu penggilingan (high ball
energy milling) selama 30 jam. Sintering dilakukan selama 0, 1, 3 dan 6 jam.
Material dianalisa menggunakan sinar X. Besar ukuran butir dihitung menggunakan
persamaan Debye-Scherrer berdasarkan profil difraksi sinar X-nya. Sifat magnetik
diukur menggunakan pemagraf. Sedangkan serapan gelombang mikro diukur
menggunakan alat Network Analyzer (VNA) dengan metode Transmission/
Reflection Line (TRL). Semua pengukuran dilakukan pada temperatur kamar. Hasil
penelitian menunjukkan bahwa persamaan pertumbuhan butir kristal
La0.25Ba0.75Fe0.25Mn0.5Ti0.25O3 mengikuti model persamaan laju difusi
. Hasil serapan gelombang mikro menunjukkan adanya serapan
pada frekuensi 11-15 GHz. Serapan ini relatif lebih kecil jika dibandingkan dengan
serapan material basisnya yakni LaFe0.25Mn0.5Ti0.25O3. Namun daerah serapannya
relatif lebih luas daripada material basis tersebut.
<hr>
<b>Abstract</b><br>
Growth of La0.25Ba0.75Fe0.25Mn0.5Ti0.25O3 in the temperatur e1100oC, 1200oC, dan
1300oC during 0, 1, 3 and 6 hours sinteringwas investigated. Sampels was prepared
by mechanical alloying techique with high ball energy milling. Milling time is 30
hours. Sample was analized using x-ray diffraction.Grain size was calculated using
Debye-Scherrer equation based on their x-ray diffraction profiles. Material
absorbance properties was measured using Network Analyzer (VNA) with
Transmission/ Reflection Line (TRL) measurement technique. All analysis was
conducted in room temperature. Data showed that grain growth of
La0.25Ba0.75Fe0.25Mn0.5Ti0.25O3 has followed diffusion rate equation model of
. Whilst it microwave absorbance measurement data performed its
wide absorbance in the fequency range 11-15 GHz. Despite its relatively small
absorbance intensity , La0.25Ba0.75Fe0.25Mn0.5Ti0.25O3 has broader bandwith
comparing to its base material LaFe0.25Mn0.5Ti0.25O3</description><identifier>https://lib.ui.ac.id/detail?id=20317239</identifier><recordID>20317239</recordID></dc>
|
| format |
Thesis:Masters Thesis Thesis:Bachelors |
| author |
Endyas Pratitajati, author Add author: Azwar Manaf, supervisor Add author: Muhammad Hikam, examiner Add author: Dewa Nyoman Adnyana, examiner Add author: Ridwan, examiner |
| title |
Karakterisasi mikrostruktural material penyerap gelombang elektromagnetik senyawa LaxBa(1-x)Fe0.25Mn0.5Ti0.25O3, (x = 0, 0.25, 0.75, 1) = Microstructural characterization of LaxBa(1-x)Fe0.25Mn0.5Ti0.25O3, (x = 0, 0.25, 0.75, 1), an electromagnetic wave absorbance material |
| publishDate |
2012 |
| topic |
Electromagnetic waves |
| url |
https://lib.ui.ac.id/detail?id=20317239 |
| contents |
<b>ABSTRAK</b><br>
Pertumbuhan butir pada temperatur 1100oC, 1200oC, dan 1300oCkristal LaxBa(1-
x)Fe0.25Mn0.5Ti0.25O3 dipelajari. Material sampel dipreparasi menggunakan teknik
pengaloyan mekanik (mechanical alloying) dengan waktu penggilingan (high ball
energy milling) selama 30 jam. Sintering dilakukan selama 0, 1, 3 dan 6 jam.
Material dianalisa menggunakan sinar X. Besar ukuran butir dihitung menggunakan
persamaan Debye-Scherrer berdasarkan profil difraksi sinar X-nya. Sifat magnetik
diukur menggunakan pemagraf. Sedangkan serapan gelombang mikro diukur
menggunakan alat Network Analyzer (VNA) dengan metode Transmission/
Reflection Line (TRL). Semua pengukuran dilakukan pada temperatur kamar. Hasil
penelitian menunjukkan bahwa persamaan pertumbuhan butir kristal
La0.25Ba0.75Fe0.25Mn0.5Ti0.25O3 mengikuti model persamaan laju difusi
. Hasil serapan gelombang mikro menunjukkan adanya serapan
pada frekuensi 11-15 GHz. Serapan ini relatif lebih kecil jika dibandingkan dengan
serapan material basisnya yakni LaFe0.25Mn0.5Ti0.25O3. Namun daerah serapannya
relatif lebih luas daripada material basis tersebut.
<hr>
<b>Abstract</b><br>
Growth of La0.25Ba0.75Fe0.25Mn0.5Ti0.25O3 in the temperatur e1100oC, 1200oC, dan
1300oC during 0, 1, 3 and 6 hours sinteringwas investigated. Sampels was prepared
by mechanical alloying techique with high ball energy milling. Milling time is 30
hours. Sample was analized using x-ray diffraction.Grain size was calculated using
Debye-Scherrer equation based on their x-ray diffraction profiles. Material
absorbance properties was measured using Network Analyzer (VNA) with
Transmission/ Reflection Line (TRL) measurement technique. All analysis was
conducted in room temperature. Data showed that grain growth of
La0.25Ba0.75Fe0.25Mn0.5Ti0.25O3 has followed diffusion rate equation model of
. Whilst it microwave absorbance measurement data performed its
wide absorbance in the fequency range 11-15 GHz. Despite its relatively small
absorbance intensity , La0.25Ba0.75Fe0.25Mn0.5Ti0.25O3 has broader bandwith
comparing to its base material LaFe0.25Mn0.5Ti0.25O3 |
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IOS18064.20317239 |
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Universitas Indonesia |
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51 |
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library:university library |
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Perpustakaan Universitas Indonesia |
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Repository Skripsi (open) Universitas Indonesia |
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18064 |
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KOTA DEPOK |
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JAWA BARAT |
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IOS18064 |
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2022-12-13T09:08:40Z |
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