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Národní úložiště šedé literatury Nalezeno 2 záznamů.  Hledání trvalo 0.01 vteřin. 
Measurement of surface tension for surface characterization of advanced ceramic materials
 Mišáková, Liliana ; Kachlík, Martin (oponent) ; Salamon, David (vedoucí práce)
The presented thesis theoretically describes methods applied for the characterization of organic substances presented on the surfaces of advanced ceramic materials. Measurement of contact angles experimentally verifies the changes on surfaces of advanced ceramics. These changes are caused by the contamination of the surface. Adsorption of organic compounds on inorganic surfaces is rather unfavorable, therefore obtained results may provide useful information about the mechanisms of removal of the contaminants from surface. In the experimental part, water contact angle measurements were used to monitor and describe the changes of surface characteristics of ceramic oxides ZnO, TiO2, hydroxyapatite, Al2O3 and ZrO2. WCAs for untreated surfaces along with the WCA values for thermally or chemically treated surfaces of studied materials were assessed and compared in order to describe changes in surface energy, hydrophilicity and adhesivity caused by adsorbed organic adlayer. The decrease of contact angle values was achieved by cleaning of the surface with subsequent deprivation of adsorbed molecules.
Úplný záznam
Measurement of surface tension for surface characterization of advanced ceramic materials
 Mišáková, Liliana ; Kachlík, Martin (oponent) ; Salamon, David (vedoucí práce)
The presented thesis theoretically describes methods applied for the characterization of organic substances presented on the surfaces of advanced ceramic materials. Measurement of contact angles experimentally verifies the changes on surfaces of advanced ceramics. These changes are caused by the contamination of the surface. Adsorption of organic compounds on inorganic surfaces is rather unfavorable, therefore obtained results may provide useful information about the mechanisms of removal of the contaminants from surface. In the experimental part, water contact angle measurements were used to monitor and describe the changes of surface characteristics of ceramic oxides ZnO, TiO2, hydroxyapatite, Al2O3 and ZrO2. WCAs for untreated surfaces along with the WCA values for thermally or chemically treated surfaces of studied materials were assessed and compared in order to describe changes in surface energy, hydrophilicity and adhesivity caused by adsorbed organic adlayer. The decrease of contact angle values was achieved by cleaning of the surface with subsequent deprivation of adsorbed molecules.
Úplný záznam

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