CONVERSION OF YTTRIUM-ALUMINUM-GARNET TO SOLUBLE FORMS AS A RESULT OFMECHANOCHEMICAL TREATMENT

Authors
MINKOVA N TERZIEV A TZVETKOV G TODOROVSKY D
Citation
N. Minkova et al., CONVERSION OF YTTRIUM-ALUMINUM-GARNET TO SOLUBLE FORMS AS A RESULT OFMECHANOCHEMICAL TREATMENT, Monatshefte fuer Chemie, 128(6-7), 1997, pp. 593-598
Citations number
6
Categorie Soggetti
Chemistry
Journal title
Monatshefte fuer Chemie → ACNP
ISSN journal
00269247
Volume
128
Issue
6-7
Year of publication
1997
Pages
593 - 598
Database
ISI
SICI code
0026-9247(1997)128:6-7<593:COYTSF>2.0.ZU;2-1
Abstract
The changes in the solubility and in the phase composition of yttrium- aluminum garnet (YAG) as a result of its mechanochemical treatment for 2 h in a planetary ball mill together with H3BO3 and Na2CO3 (mole rat io H2BO3/Na2CO3 = 4) in ratios (H3BO3 + Na2CO3)/YAG = 2,4, and 9 are s tudied. At a ratio of 9, the yield of yttrium in the water solution ob tained upon treatment of the activated mixture at 90 degrees C (50 cm( 3) water/g sample) reaches 85%. Its content in the same solution is ab ove 93% relatively to the sum Y + Al.