Chemical etching of AlF3-based glasses

Citation
Yd. West et al., Chemical etching of AlF3-based glasses, J NON-CRYST, 257, 1999, pp. 200-206
Citations number
11
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF NON-CRYSTALLINE SOLIDS
ISSN journal
00223093 → ACNP
Volume
257
Year of publication
1999
Pages
200 - 206
Database
ISI
SICI code
0022-3093(199910)257:<200:CEOAG>2.0.ZU;2-W
Abstract
In this work, two multi component etches have been identified for the purpo se of etching aluminium fluoride based [AIF(3)-M(II)F-2-xPO(3), M = Mg, Ca, Ba, Sr] fibre samples to improve their mechanical strength. Optimum workin g ;compositions are (i) 0.4 M AlCl3. 6H(2)O/1M HCl and (ii) (by volume) 50% HF (48%)/30% HNO3 (68%)/20% H2O with 3M H3BO3 dissolved. Both yield fibres of improved strength and quality, although the former etch performs better . Furthermore, an etch procedure has been developed for the aluminium chlor ide mixture which enables increased strength fibre to be pulled in a contro lled and reproducible manner. (C) 1999 Elsevier Science B.V. All rights res erved.