Nanometric Pb{sub 1-x}La{sub x}TiO{sub 3} (x = 0, 0.13 and 0.27) powders obtained by the polymeric precursor method
- LCEE, Department of Chemistry, CEFET-MA, Av. Getulio Vargas, 04, CEP 65025-001, Sao Luis, MA (Brazil)
- CMDMC, CCMC, Department of Physics, USP, Sao Carlos, SP (Brazil)
- CMDMC, LIEC, Institute of Chemistry, UNESP, Araraquara, SP (Brazil)
- LACOM, Department of Chemistry, CCEN, UFPB, Joao Pessoa, PB (Brazil)
PLT (Pb{sub 1-x}La{sub x}TiO{sub 3}, in which x = 0, 0.13 and 0.27) powders were successfully synthesized using the polymeric precursor method, based on the Pechini method. The polymeric precursors were calcined at temperatures ranging from 350 to 500 deg. C for 4 h. X-ray diffraction (XRD) showed the evolution of the crystalline phase starting from the amorphous precursor. Thermogravimetric analyses (TG) and differential thermal analyses (DTA) of the powder precursors showed the influence of the pH on the elimination of organic material. PLT powders have a tendency to form agglomerates, what can be verified by comparing the values of the average particle sizes obtained by Brunauer-Emmett-Teller method, BET (D{sub BET}) with the values of the average crystallite sizes obtained by XRD (D{sub XRD})
- OSTI ID:
- 21068235
- Journal Information:
- Materials Research Bulletin, Vol. 43, Issue 4; Other Information: DOI: 10.1016/j.materresbull.2007.05.005; PII: S0025-5408(07)00195-X; Copyright (c) 2007 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved; Country of input: International Atomic Energy Agency (IAEA); ISSN 0025-5408
- Country of Publication:
- United States
- Language:
- English
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