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Thermal analysis of sol-gel aluminosilicate systems

M. TAMASAN1,2,* , T. RADU2, S. SIMON1,2, I. BARBUR2, H. MOCUTA1,2, V. SIMON1

Affiliation

  1. Babes-Bolyai University, Faculty of Physics, 400084 Cluj-Napoca,Romania
  2. Institute for Experimental Interdisciplinary Research, Treboniu Laurian 34, 400271 Cluj-Napoca, Romania

Abstract

Aluminosilicate systems containing radioactivable elements (Y or Dy) and/or Fe are investigated for possible applications in internal radiotherapy and hyperthermia, or in combined therapies. The samples were prepared by sol-gel method, using two different sources for SiO2: C8H20O4Si (TEOS) and SiO2ּ xH2O (silicic acid), and nitrates as sources of Al2O3, Y2O3, Dy2O3 and Fe2O3, added in different ratios. The dried gels were heat treated at 500 ºC for 1 hour and at 1200 ºC for 24 hours, in order to engineer their structure. The samples were studied by differential thermal analysis/thermogravimetry and differential scanning calorimetry and the results were correlated with the data obtained by X-ray diffraction analysis..

Keywords

Thermal analysis, Structure, Sol-gel, Aluminoslilicates.

Submitted at: Nov. 13, 2007
Accepted at: April 4, 2008

Citation

M. TAMASAN, T. RADU, S. SIMON, I. BARBUR, H. MOCUTA, V. SIMON, Thermal analysis of sol-gel aluminosilicate systems, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 4, pp. 948-950 (2008)