In-situ real time monitoring of the polymerization in gel-cast ceramic processes [electronic resource].
- Published
- Washington, D.C. : United States. Dept. of Energy, 1996.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy. - Physical Description
- 9 pages : digital, PDF file
- Additional Creators
- Argonne National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
Access Online
- Restrictions on Access
- Free-to-read Unrestricted online access
- Summary
- Gelcasting requires making a mixture of a slurry of ceramic powder in a solution of organic monomers and casting it in a mold. Gelcasting is different from injection molding in that it separates mold filling from setting during conversion of the ceramic slurry to a formed green part. In this work, NMR spectroscopy and imaging were used for in-situ monitoring of the gelation process and gelcasting of alumina. ¹H NMR spectra and images are obtained during polymerization of a mixture of soluble reactive acrylamide monomers. Polymerization was initiated by adding an initiator and an accelerator to form long- chain, crosslinked polymers. Multidimensional NMR imaging was used for in-situ monitoring of the process and for verification of homogeneous polymerization. Comparison of the modeled intensities with acquired images shows a direction extraction of T₁ data from the images.
- Report Numbers
- E 1.99:anl/et/cp--90245
E 1.99: conf-960106--14
conf-960106--14
anl/et/cp--90245 - Subject(s)
- Other Subject(s)
- Note
- Published through SciTech Connect.
08/01/1996.
"anl/et/cp--90245"
" conf-960106--14"
"DE96012805"
20. annual conference on composites, advanced ceramics, materials and structures-B, Cocoa Beach, FL (United States), 7-11 Jan 1996.
Ahuja, S.; Omatete, O.O.; Raptis, A.C.; Dieckman, S.L.; Bostrom, G.A.; Waterfield, L.G. - Funding Information
- W-31109-ENG-38
View MARC record | catkey: 14452914