MARANHAO, DIEGO S.S.MIRANDA, LEILA F. deTERENCE, MAURO C.ANDRADE e SILVA, LEONARDO G.KIYOHARA, PEDRO K.MUNHOZ JUNIOR, ANTONIO H.2014-11-172014-11-182015-04-022014-11-172014-11-182015-04-02MARANHAO, DIEGO S.S.; MIRANDA, LEILA F. de; TERENCE, MAURO C.; ANDRADE e SILVA, LEONARDO G.; KIYOHARA, PEDRO K.; MUNHOZ JUNIOR, ANTONIO H. Study of the effect of radiation in pseudoboehmites obtained by sol-gel process. In: INTERNATIONAL NUCLEAR ATLANTIC CONFERENCE; MEETING ON NUCLEAR APPLICATIONS, 8th/ MEETING ON REACTOR PHYSICS AND THERMAL HYDRAULICS, 15th, Sept. 30 - Oct. 5, 2007, Santos, SP. <b>Proceedings...</b> Disponível em: http://repositorio.ipen.br/handle/123456789/15737.http://repositorio.ipen.br/handle/123456789/15737The synthesis of pseudoboehmites by sol-gel process is a promising technique for the synthesis of aluminas with high specific surface area and with controlled pore diameter. A pseudoboehmite was obtained by sol-gel process using aluminum nitrate as precursor. The purpose of this work is to study the pseudoboehmite by sol-gel process using different synthesis conditions and the effect of variation the synthesis conditions in the properties of pseudoboehmites and aluminas. A 2n experimental planning was used to study the effect of the 4 synthesis variables: temperature (room temperature of ~25o C and low temperature of -3oC), concentration of ammonium hydroxide, concentration of the PVAL solution and ionizing radiation. The obtained products of the synthesis with different conditions were characterized by various techniques: scanning electron microscopy (SEM), differential scanning calorimetry (DSC), thermogravimetric analysis (TG) and infrared absorption spectroscopy. The samples of the different synthesis were calcined at 1100oC during 4 hours and powder diffraction data of the products were collected in order to compare their crystallinity. The difractograms indicate that these products are well crystallized α-alumina.openAccesssol-gel processaluminium nitratessynthesisammonium hydroxidesionizing radiationsStudy of the effect of radiation in pseudoboehmites obtained by sol-gel processTexto completo de eventohttps://orcid.org/0000-0002-7968-2117