Koç, S. NaciÖksüzömer, FarukYaşar, ErdemAktürk, SelçukGürkaynak, M. Ali2020-06-252020-06-252006closedAccess0025-54081873-4227https://doi.org10.1016/j.materresbull.2006.04.025https://hdl.handle.net/20.500.12587/3679Oksuzomer, Faruk/0000-0003-0827-8667; Koc, Serkan Naci/0000-0003-4472-4337LaAlO3 powders are prepared by sol-gel method. The effect of preparation conditions on morphological properties and crystal formations are investigated. iso-Propanol/tert-butanol and ethyl acetoacetate/ethylene glycol monomethylether are used solvents and complexing agents, respectively. Samples are dried with conventional and freeze-drying methods and calcined between 600 and 1000 degrees C. TGA, DTA, XRD, SEM and TEM methods are used for characterization. It is observed that freeze-dried sample prepared with tert-butanol has the lowest LaAlO3 formation temperature and uniform rhombohedral crystals. But conventionally dried sample, prepared with iso-propanol has smallest agglomerates at 1000 degrees C and does not show clear crystallization temperature in DTA analysis. The XRD peaks of LaAlO3 crystal are observed at 600 degrees C for all samples prepared by various sol-gel conditions. (C) 2006 Elsevier Ltd. All rights reserved.eninfo:eu-repo/semantics/closedAccessnanostructuressol-gel chemistryX-ray diffractionmicrostructureArticle41122291229710.1016/j.materresbull.2006.04.0252-s2.0-33750519230Q1WOS:000242522000015Q2