Sintesis dan Karakterisasi Aurivillius LaBi2TiNbO9 dan Bi3TiTaO9

Imam Syuhadi, Afifah Rosyidah
Submission Date: 2014-08-06 07:37:32
Accepted Date: 2014-09-14 11:50:42

Abstract


Oksida Aurivillius LaBi2TiNbO9 dan Bi3TiTaO9 telah berhasil disintesis dengan metode reaksi kimia padat, kedua senyawa berstruktur ortorombik. Pengaruh subsitusi kation A menyebabkan perubahan grup ruang A21am menjadi Fmmm dan nilai faktor toleransi perosvkit menurun dari ~ 0,96 menjadi ~ 0,89 pada oksida Aurivillius Bi3TiTaO9sehingga perovskit pada senyawa tersebut terdistorsi. Subsitusi pada kation B tidak merubah struktur dan grup ruang. Karakterisasi XRF Oksida Aurivillius LaBi2TiNbO9mempunyai komposisi berbeda dengan hasil teori sedangkan komposisi Aurivillius Bi3TiTaO9mendekati nilai sebenarya

Keywords


Oksida Aurivillius LaBi2TiNbO9 dan Bi3TiTaO9 ; Reaksi kimia padat

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