| Attributes | Values |
|---|
| rdf:type
| |
| Description
| - The influence of ethanol addition on the microstructure of ceramic foams prepared by yeast-mediated biological foaming of alumina suspensions is investigated, and two new process variants are proposed. It has been found that ethanol additions of more than 5 % have a significant effect on the (total) porosity and the pore size of cellular alumina. Porosities in the range 78-84 % can be readily achieved by this process without additional ethanol or with ethanol additions below 5 wt.%, whereas porosities in the range 46-76 % are obtained when the ethanol additions in the alumina suspensions are in the range 7.5-25 wt.%. That means, ethanol addition is an efficient tool for controlling the porosity of alumina foams and thus for tailoring the microstructure-sensitive properties. Apart from that, ethanol addition has a significant influence on the pore size. Mean pore sizes are in the range 0.7-1.4 mm for ethanol contents below 5 wt.%, but only approx. 0.5 mm for ethanol contents of 10 wt.%. The two new process variants using premixed yeast suspensions seem to be viable routes for circumventing or avoiding the homogenization problems associated with the standard procedure, where dry yeast is directly introduced into the ceramic suspension. Thus, these process variants are important steps towards process optimization and the necessary precondition for a possible future upscaling of the process of biological foaming from the lab scale to pilot or production plant scale.
- The influence of ethanol addition on the microstructure of ceramic foams prepared by yeast-mediated biological foaming of alumina suspensions is investigated, and two new process variants are proposed. It has been found that ethanol additions of more than 5 % have a significant effect on the (total) porosity and the pore size of cellular alumina. Porosities in the range 78-84 % can be readily achieved by this process without additional ethanol or with ethanol additions below 5 wt.%, whereas porosities in the range 46-76 % are obtained when the ethanol additions in the alumina suspensions are in the range 7.5-25 wt.%. That means, ethanol addition is an efficient tool for controlling the porosity of alumina foams and thus for tailoring the microstructure-sensitive properties. Apart from that, ethanol addition has a significant influence on the pore size. Mean pore sizes are in the range 0.7-1.4 mm for ethanol contents below 5 wt.%, but only approx. 0.5 mm for ethanol contents of 10 wt.%. The two new process variants using premixed yeast suspensions seem to be viable routes for circumventing or avoiding the homogenization problems associated with the standard procedure, where dry yeast is directly introduced into the ceramic suspension. Thus, these process variants are important steps towards process optimization and the necessary precondition for a possible future upscaling of the process of biological foaming from the lab scale to pilot or production plant scale. (en)
|
| Title
| - Influence of ethanol addition on the microstructure of ceramic foams prepared by yeast-mediated biological foaming of alumina suspensions
- Influence of ethanol addition on the microstructure of ceramic foams prepared by yeast-mediated biological foaming of alumina suspensions (en)
|
| skos:prefLabel
| - Influence of ethanol addition on the microstructure of ceramic foams prepared by yeast-mediated biological foaming of alumina suspensions
- Influence of ethanol addition on the microstructure of ceramic foams prepared by yeast-mediated biological foaming of alumina suspensions (en)
|
| skos:notation
| - RIV/60461373:22310/14:43898210!RIV15-GA0-22310___
|
| http://linked.open...avai/riv/aktivita
| |
| http://linked.open...avai/riv/aktivity
| |
| http://linked.open...vai/riv/dodaniDat
| |
| http://linked.open...aciTvurceVysledku
| |
| http://linked.open.../riv/druhVysledku
| |
| http://linked.open...iv/duvernostUdaju
| |
| http://linked.open...titaPredkladatele
| |
| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22310/14:43898210
|
| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - alumina foam, cellular alumina; ceramic foam; ethanol; microstructure; alumina suspensions; Biological foaming (en)
|
| http://linked.open.../riv/klicoveSlovo
| |
| http://linked.open...ontrolniKodProRIV
| |
| http://linked.open...v/mistoKonaniAkce
| |
| http://linked.open...i/riv/mistoVydani
| |
| http://linked.open...i/riv/nazevZdroje
| - Proceedings of the 10th International Conference on Polysaccharides - Glycoscience
|
| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...iv/tvurceVysledku
| - Gregorová, Eva
- Pabst, Willi
- Veselý, Martin
- Uhlířová, Tereza
- Nečina, Vojtěch
|
| http://linked.open...vavai/riv/typAkce
| |
| http://linked.open.../riv/zahajeniAkce
| |
| number of pages
| |
| http://purl.org/ne...btex#hasPublisher
| - Česká chemická společnost
|
| https://schema.org/isbn
| |
| http://localhost/t...ganizacniJednotka
| |
![[RDF Data]](/fct/images/sw-rdf-blue.png)
![[cxml]](/fct/images/cxml_doc.png)
![[csv]](/fct/images/csv_doc.png)
![[text]](/fct/images/ntriples_doc.png)
![[turtle]](/fct/images/n3turtle_doc.png)
![[ld+json]](/fct/images/jsonld_doc.png)
![[rdf+json]](/fct/images/json_doc.png)
![[rdf+xml]](/fct/images/xml_doc.png)
![[atom+xml]](/fct/images/atom_doc.png)
![[html]](/fct/images/html_doc.png)