Structure and morphology properties of nanosized la0.75k0.05ba0.05sr0.15mno3 manganite

Dhawud Sabilur Razaq, Budhy Kurniawan, Ikhwan Nur Rahman, Dicky Rezky Munazat

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Nanosized La0.75K0.05Ba0.05Sr0.15MnO3 manganite has been synthesized using sol-gel method. Afterward, the samples were sintered at eight different temperatures ranging from 650 to 1000°C. Phase purity, crystal structure, and the morphology of the sample have been examined using X-Ray Diffractometer (XRD) and Scanning Electron Microscope. It has been found that different higher sintering temperatures significantly affect the phase purity and crystallite size of the sample. Regardless of the sintering temperature, all the samples crystallized in rhombohedral structure with R-3c space group. It was found that the crystallite size is increasing monotonously with sintering temperatures from 41.59 nm up to 73.42 nm. Rietveld refinement analysis from all samples reveals that sintering temperature also affects the average Mn-O bond length (<Mn-O>) and Mn-O-Mn bond angle (<Mn-O-Mn>) of the sample. The average Mn-O bond length is found to increase while the average Mn-O-Mn bond angle tends to decrease as sintering temperature increases. SEM measurement shows that various grain size ranging from ~100 nm up to ~ 350 nm exists in all samples regardless of the sintering temperature.

Original languageEnglish
Title of host publicationPhysics Symposium
Subtitle of host publicationKey Research in Materials Science
EditorsAyi Bahtiar, Togar Saragi, Sahrul Hidayat, Lusi Safriani
PublisherTrans Tech Publications Ltd
Pages106-111
Number of pages6
ISBN (Print)9783035716979
DOIs
Publication statusPublished - 2020
Event4th Padjadjaran International Physics Symposium, PIPS 2019 - Bandung, Indonesia
Duration: 13 Nov 201914 Nov 2019

Publication series

NameKey Engineering Materials
Volume860 KEM
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

Conference4th Padjadjaran International Physics Symposium, PIPS 2019
CountryIndonesia
CityBandung
Period13/11/1914/11/19

Keywords

  • Manganite
  • Morphology
  • Nanosized
  • Sol-gel
  • Structure

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