Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Elin Nilsen"'
Autor:
Øy, Elin Nilsen
Publikováno v:
Øy, Elin Nilsen. Deltagelse i en internasjonal klimaavtale . Hovedoppgave, University of Oslo, 2002
Externí odkaz:
http://hdl.handle.net/10852/17522
Publikováno v:
Journal of Sol-Gel Science and Technology. 35:143-150
The preparation and characterization of a composite binder made through a sol-gel route from an amorphous mineral raw material has been studied. The amorphous mineral raw material is alumino-silicate based but contains also alkaline earth and some tr
Autor:
Françoise Ehrburger-Dolle, Mari-Ann Einarsrud, Bruno Chevalier, René Pirard, Arnaud Rigacci, Elin Nilsen
Publikováno v:
Journal of Non-Crystalline Solids. 350:196-201
Previously published results have shown that washing and aging treatments (respectively in water/ethanol and water/polyethoxydisiloxane solutions) of silica gels (synthesized from polyethoxydisiloxane precursors through HF catalysis) significantly en
Publikováno v:
Journal of Non-Crystalline Solids. 342:59-64
An amorphous, aluminosilicate-based mineral has been dissolved in acidic water and water–ethanol solutions, respectively, for subsequent use as a binder for inorganic fiber mats. In this communication, the focus is put on the stability of the sols
Publikováno v:
Journal of Sol-Gel Science and Technology. 26:1239-1242
A new low cost inorganic binder system for large volume products like fiber insulation, building materials, etc. has been developed based on sol-gel technology. The precursor for the binder system is an amorphous mineral raw material containing silic
Publikováno v:
Journal of Non-Crystalline Solids. 296:165-171
The properties of aerogels dried at ambient pressure prepared using different synthesis conditions have been studied. The effect of type of precursor (tetramethoxysilane (TMOS), tetraethoxysiliane (TEOS) and sodium silicate (`water glass')), solvent
Publikováno v:
University of Copenhagen
Scopus-Elsevier
Scopus-Elsevier
It has been shown that wet gels can be strengthened and stiffened by providing new monomers to the alcogel after gelation by aging in a tetraethoxysilane (TEOS) solution. Xerogels with properties similar to aerogels can be obtained by drying at ambie
Autor:
Elin Nilsen, Mari-Ann Einarsrud
Publikováno v:
Journal of Non-Crystalline Solids. 226:122-128
Previous work demonstrated that gels can be strengthened and stiffened by providing new monomers to the alcogel thus giving xerogels ambient pressure dried with properties similar to aerogels with porosity up to 90%. That work is extended to increase
Autor:
Mari-Ann Einarsrud, Elin Nilsen
Publikováno v:
Journal of Sol-Gel Science and Technology. 13:317-322
In previous work we have introduced the idea of preparing ambient pressure dried silica aerogels by increasing the wet gels' stiffness by aging in a TEOS solution until shrinkage during drying is almost eliminated. The present work elucidates the pos
Publikováno v:
Journal of Non-Crystalline Solids. 221:135-143
Using a theory developed by Smith et al. [J. Non-Cryst. Solids 188 (1995) 191], the drying shrinkage of a gel can be predicted, given the density dependence of the bulk modulus and the characteristic pore size. The theory was tested for two types of