TY - JOUR
T1 - Sol-Gel Synthesis of λ-Na2O·xAl2O 3 Films
AU - Martucci, Alessandro
AU - Sartori, Sabrina
AU - Muffato, Alessandro
AU - Armelao, Lidia
AU - Di Bartolomeo, Elisabetta
AU - Traversa, Enrico
AU - Guglielmi, Massimo
PY - 2003/11
Y1 - 2003/11
N2 - Na2O·xAl2O3 (x = 9, 11) films have been obtained by sol-gel method. Crystallization processes during heat treatments have been investigated by X-ray diffraction analysis. A metastable phase with the mullite structure, λ-Na2O·xAl 2O3, has been observed starting from 800°C. Films remained stable after a heat treatment at 1000°C for 250 h. Impedance spectroscopy measurements showed that the films of λ-Na 2O·xAl2O3 possess a large three-dimensional ionic conductivity at 400°C.
AB - Na2O·xAl2O3 (x = 9, 11) films have been obtained by sol-gel method. Crystallization processes during heat treatments have been investigated by X-ray diffraction analysis. A metastable phase with the mullite structure, λ-Na2O·xAl 2O3, has been observed starting from 800°C. Films remained stable after a heat treatment at 1000°C for 250 h. Impedance spectroscopy measurements showed that the films of λ-Na 2O·xAl2O3 possess a large three-dimensional ionic conductivity at 400°C.
UR - http://www.scopus.com/inward/record.url?scp=0345306341&partnerID=8YFLogxK
U2 - 10.1111/j.1151-2916.2003.tb03591.x
DO - 10.1111/j.1151-2916.2003.tb03591.x
M3 - Article
AN - SCOPUS:0345306341
SN - 0002-7820
VL - 86
SP - 1965
EP - 1968
JO - Journal of the American Ceramic Society
JF - Journal of the American Ceramic Society
IS - 11
ER -