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Studi Sifat Listrik Bahan Perovskit SrFeO3 dan LaFeO3 pada Temperatur Tinggi = Study of Electrical Properties of SrFeO3 and LaFeO3Perovskite Materials at High Temperature

Puji Wahyuningsih; Djoko Triyono, supervisor; Cuk Imawan, examiner; Efta Yudiarsah, examiner; Muhammad Aziz Majidi, examiner ([Publisher not identified] , 2015)

 Abstrak

[ABSTRAK
Telah dilakukan penelitian sifat listrik bahan perovskit SrFeO3 dan LaFeO3 pada
temperatur tinggi pada kisaran temperatur ruang hingga 250 0C. Sampel disinter
950 0C selama 6 jam. Hasil karakterisasi XRD menunjukkan SrFeO3 memilik fase
tunggal dan memiliki struktur kristal kubik dengan space grup pm3m dan
grainsize 20 nm, dan LaFeO3 memiliki struktur kristal orthorombik dengan space
grup Pbnm dan grainsize 22 nm. Data impedansi disajikan dalam bentuk nyquist
plot dan bode plot yang digunakan untuk mengidentifikasi parameter rangkaian
ekivalen. Sifat listrik bahan SrFeO3 dan LaFeO3 dapat dideskripsikan dengan
rangkaian R, RC paralel maupun kombinasi dari keduanya yang menunjukan
adanya kontribusi grain dan grain boundary. Energi aktivasi diperoleh dari
hubungan konduktivitas dc sebagai fungsi temperatur. Energi aktivasi sampel
SrFeO3 dan LaFeO3 adalah 0,1817 eV dan 0,0158 eV.

ABSTRACT
The electrical properties of SrFeO3 and LaFeO3 perovskite materials are
investigated at high temperatures from room temperature to 250 0C. Samples are
sintered at 950 0C for 6 hours. XRD characterization show SrFeO3 has a single
phase and having cubic structure with pm3m space group and grainzise 20 nm.
LaFeO3 having orthorombic structure with Pbnm space group and grainsize 22 nm.
Impedance data are presented in the nyquist plot and bode plot which is used to
identify an equivalent circuit. The electrical properties of SrFeO3 and LaFeO3
perovskite materials can described by R, RC parallel or both combination that
seem a grain and grain boundary. The value of the activation energy which is
evaluated from dc conductivity as a function of temperature. The activation
energy of SrFeO3 and LaFeO3 is 0.1817 eV and 0.0158 eV., The electrical properties of SrFeO3 and LaFeO3 perovskite materials are
investigated at high temperatures from room temperature to 250 0C. Samples are
sintered at 950 0C for 6 hours. XRD characterization show SrFeO3 has a single
phase and having cubic structure with pm3m space group and grainzise 20 nm.
LaFeO3 having orthorombic structure with Pbnm space group and grainsize 22 nm.
Impedance data are presented in the nyquist plot and bode plot which is used to
identify an equivalent circuit. The electrical properties of SrFeO3 and LaFeO3
perovskite materials can described by R, RC parallel or both combination that
seem a grain and grain boundary. The value of the activation energy which is
evaluated from dc conductivity as a function of temperature. The activation
energy of SrFeO3 and LaFeO3 is 0.1817 eV and 0.0158 eV.]

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 Metadata

No. Panggil : T43840
Entri utama-Nama orang :
Entri tambahan-Nama orang :
Entri tambahan-Nama badan :
Subjek :
Penerbitan : [Place of publication not identified]: [Publisher not identified], 2015
Program Studi :
Bahasa : ind
Sumber Pengatalogan : LibUI ind rda
Tipe Konten : text
Tipe Media : unmediated ; computer
Tipe Carrier : volume ; online resource
Deskripsi Fisik : xvi, 83 pages : illustration ; 28 cm + appendix
Naskah Ringkas :
Lembaga Pemilik : Universitas Indonesia
Lokasi : Perpustakaan UI, Lantai 3
  • Ketersediaan
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No. Panggil No. Barkod Ketersediaan
T43840 TERSEDIA
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