Preparation of Porous Glass Monoliths with an Aligned Pore System via Stretch Forming

Porous glasses with an aligned pore system were prepared by using a stretch‐forming device. For the experiments a sodium borosilicate glass with the composition 62.5 wt% SiO2, 30.5 wt% B2O3 and 7 wt% Na2O was prepared. The characterization of this glass includes X‐ray fluorescence analysis and dilat...

Full description

Saved in:
Bibliographic Details
Published in:Journal of the American Ceramic Society 2012-10, Vol.95 (10), p.3013-3015
Main Authors: Barascu, Andrei, Kullmann, Jens, Reinhardt, Bjoern, Rainer, Thomas, Roggendorf, Hans, Dubiel, Manfred, Enke, Dirk
Format: Article
Language:English
Subjects:
Alignment
Borosilicate glasses
Ceramics
Devices
Elongation
Experiments
Fluorescence
Glass
Phase separation
Porosity
Scanning electron microscopy
Sodium
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Porous glasses with an aligned pore system were prepared by using a stretch‐forming device. For the experiments a sodium borosilicate glass with the composition 62.5 wt% SiO2, 30.5 wt% B2O3 and 7 wt% Na2O was prepared. The characterization of this glass includes X‐ray fluorescence analysis and dilatometry. The applied stretch‐forming apparatus allowed the simultaneous phase separation and elongation of the glass samples. The obtained glass templates were chemically treated with hydrochloric acid and sodium hydroxide solution to extract the soluble sodium rich borate phase. The resulting porous glass samples were characterized by environmental scanning electron microscopy and mercury intrusion. Different degrees of pore alignment were realized by varying the parameters of the stretch‐forming process.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1551-2916.2012.05394.x