TY - JOUR
T1 - Effect of Fe2O3 crystallite size on its mechanochemical reaction with La2O3 to form LaFeO3
AU - Zhang, Qiwu
AU - Saito, Fumio
N1 - Copyright:
Copyright 2007 Elsevier B.V., All rights reserved.
PY - 2001/5/1
Y1 - 2001/5/1
N2 - Fe2O3 powders with different crystalline sizes prepared by heating FeOOH at various temperatures were ground with La2O3 powder using a planetary ball mill to investigate the effect of crystallite size on mechanochemical synthesis of LaFeO3. Fe2O3 powder with smaller crystallite size obtained by heating at lower temperature reacts more easily with La2O3 than that with larger size. The mechanochemical reaction proceeds with an increase in grinding time. Specific surface area of the LaFeO3 powder synthesized has a large value of over 11 m2/g. The mechanochemical process can be also applied to synthesize other iron complex oxides with rare earth elements such as Pr, Nd and Sm.
AB - Fe2O3 powders with different crystalline sizes prepared by heating FeOOH at various temperatures were ground with La2O3 powder using a planetary ball mill to investigate the effect of crystallite size on mechanochemical synthesis of LaFeO3. Fe2O3 powder with smaller crystallite size obtained by heating at lower temperature reacts more easily with La2O3 than that with larger size. The mechanochemical reaction proceeds with an increase in grinding time. Specific surface area of the LaFeO3 powder synthesized has a large value of over 11 m2/g. The mechanochemical process can be also applied to synthesize other iron complex oxides with rare earth elements such as Pr, Nd and Sm.
UR - http://www.scopus.com/inward/record.url?scp=0035338260&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0035338260&partnerID=8YFLogxK
U2 - 10.1023/A:1017520806922
DO - 10.1023/A:1017520806922
M3 - Article
AN - SCOPUS:0035338260
VL - 36
SP - 2287
EP - 2290
JO - Journal of Materials Science
JF - Journal of Materials Science
SN - 0022-2461
IS - 9
ER -