| Attributes | Values |
|---|
| rdf:type
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| Description
| - Powder compacts have been prepared from ceramic and pharmaceutical powders (alumina, kaolin-mullite mixtures, hydroxyapatite, ibuprofenum) by uniaxial pressing with different starch types (rice, corn, potato) and with a commercial cellulose product (blend of microcrystalline cellulose and sodium carbomethylcellulose). Powders and compacts have been studied by optical and / or scanning elecron microscopy, and after pressing or firing the compacts have been studied using density measurements and diametral compression (Brazilian tests). Systematic experimental work is presented, dealing with the uniaxial die pressing of ceramic powder systems (alumina, mullite, kaolin-mullite-based ceramics, hydroxyapatite) and one selected pharmaceutical powder (ibuprofenum). The influence of applied pressure, additive type and additive content on the bulk density of the ceramics after pressing or firing has been studied, and for ibuprofenum and kaolin-mullite compacts also the strength after pressing is reported. It is shown that cellulose blends and rice starch are useful pressing additives for ceramics, while corn starch can be recommended only with reservations and potato starch seems not to be suitable, unless other modifications are introduced. Based on a detailed Weibull analysis, it is shown that pressed compacts of anisometric pharmaceutical powders like ibuprofenum exhibit a remarkably high strength (significantly higher than kaolin compacts) and might possibly be used to increase the green strength of ceramic compacts.
- Powder compacts have been prepared from ceramic and pharmaceutical powders (alumina, kaolin-mullite mixtures, hydroxyapatite, ibuprofenum) by uniaxial pressing with different starch types (rice, corn, potato) and with a commercial cellulose product (blend of microcrystalline cellulose and sodium carbomethylcellulose). Powders and compacts have been studied by optical and / or scanning elecron microscopy, and after pressing or firing the compacts have been studied using density measurements and diametral compression (Brazilian tests). Systematic experimental work is presented, dealing with the uniaxial die pressing of ceramic powder systems (alumina, mullite, kaolin-mullite-based ceramics, hydroxyapatite) and one selected pharmaceutical powder (ibuprofenum). The influence of applied pressure, additive type and additive content on the bulk density of the ceramics after pressing or firing has been studied, and for ibuprofenum and kaolin-mullite compacts also the strength after pressing is reported. It is shown that cellulose blends and rice starch are useful pressing additives for ceramics, while corn starch can be recommended only with reservations and potato starch seems not to be suitable, unless other modifications are introduced. Based on a detailed Weibull analysis, it is shown that pressed compacts of anisometric pharmaceutical powders like ibuprofenum exhibit a remarkably high strength (significantly higher than kaolin compacts) and might possibly be used to increase the green strength of ceramic compacts. (en)
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| Title
| - PREPARATION AND CHARACTERIZATION OF CERAMIC AND PHARMACEUTICAL POWDER COMPACTS WITH POLYSACCHARIDES AS PRESSING ADDITIVES AND PORE FORMERS
- PREPARATION AND CHARACTERIZATION OF CERAMIC AND PHARMACEUTICAL POWDER COMPACTS WITH POLYSACCHARIDES AS PRESSING ADDITIVES AND PORE FORMERS (en)
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| skos:prefLabel
| - PREPARATION AND CHARACTERIZATION OF CERAMIC AND PHARMACEUTICAL POWDER COMPACTS WITH POLYSACCHARIDES AS PRESSING ADDITIVES AND PORE FORMERS
- PREPARATION AND CHARACTERIZATION OF CERAMIC AND PHARMACEUTICAL POWDER COMPACTS WITH POLYSACCHARIDES AS PRESSING ADDITIVES AND PORE FORMERS (en)
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| skos:notation
| - RIV/60461373:22310/13:43895895!RIV14-GA0-22310___
|
| http://linked.open...avai/predkladatel
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| |
| http://linked.open...vai/riv/dodaniDat
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| 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/60461373:22310/13:43895895
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| http://linked.open...riv/jazykVysledku
| |
| http://linked.open.../riv/klicovaSlova
| - Weibull statistics; diametral compression (Brazilian tests); optical microscopy; scanning electron microscopy (SEM); cellulose; starch (potato, corn, rice); uniaxial pressing; hydroxyapatite; mullite; kaolin; Alumina (en)
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| 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 9th International Conference on Polysaccharides-Glycoscience
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| 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
| - Zemenová, Petra
- Gregorová, Eva
- Pabst, Willi
- Veselý, Martin
- Andelová, Zuzana
|
| http://linked.open...vavai/riv/typAkce
| |
| http://linked.open.../riv/zahajeniAkce
| |
| number of pages
| |
| http://purl.org/ne...btex#hasPublisher
| |
| https://schema.org/isbn
| |
| http://localhost/t...ganizacniJednotka
| |
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