Mechanochemical synthesis of lanthanum oxyfluoride from lanthanum oxide and lanthanum fluoride

Authors
Lee, J Zhang, Q Saito, F
Citation
J. Lee et al., Mechanochemical synthesis of lanthanum oxyfluoride from lanthanum oxide and lanthanum fluoride, J AM CERAM, 84(4), 2001, pp. 863-865
Citations number
16
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN journal
00027820 → ACNP
Volume
84
Issue
4
Year of publication
2001
Pages
863 - 865
Database
ISI
SICI code
0002-7820(200104)84:4<863:MSOLOF>2.0.ZU;2-H
Abstract
A powder mixture of lanthanum oxide (La2O3) and lanthanum fluoride (LaF3) w as ground by a planetary ball-mill to investigate the mechanochemical react ion forming lanthanum oxyfluoride (LaOF) at room temperature. The grinding enables us to form LaOF monophase, and the reaction proceeds with an increa se in grinding time, whereas the crystallite size of LaOF formed is about 1 5-20 nm irrespective of the grinding time. Other rare-earth oxyfluorides (R -OF, R = Pr, Nd, Sm, Gd) can be synthesized by grinding the constituent com ponents (R2O3 and RF3).