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The Possibilities of innovation of the sanitary ceramics body
Čech, Tomáš ; Chudomelka, Josef (referee) ; Sokolář, Radomír (advisor)
The aim of this thesis is to assess the possibility of increasing utility properties shard of sanitary ceramics. Description the current production of sanitary ceramics. Assessing of the impact steatite admixture into existing raw material mixture for the production of sanitary ceramics firing body characteristics (porosity, strength, thermal expansion) using the available scientific literature. Proposition the optimal dose of steatite material into the raw mixture. Evaluation of physical and mechanical properties of the resulting products of this recipe.
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Methodology of conservation-restoration of glazed ceramics
Kloužková, A. ; Svobodová, Ljuba ; Dvořáková, P. ; Kolářová, M. ; Kohoutková, M. ; Randáková, S. ; Šefců, R. ; Kloužek, J. ; Vokáč, M. ; Kubásek, J.
The methodology is focused on the conservation-restoration of glazed ceramics with regard to the stability and porosity of the ceramic shard. It provides a comprehensive overview of suitable procedures for processing this type of material. It contains an overview of suitable methods for assessing the degree of damage (both ceramic body and glaze), sampling procedures and methods for identifying chemical and mineralogical composition of ceramics and glazes and the stability of the system. It also describes cleaning options, procedures for consolidation, bonding and filling of missing fragments, and possible retouching of the ceramic body and glaze. It also contains principles for the appropriate storage of these objects and annotated examples are given to understand the individual results.
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Uranium in historical ceramic glazes: Determination by alpha radiation detection and comparison with other methods
Vopat, Michal ; Goliáš, Viktor (advisor) ; Jelínek, Emil (referee)
In the Czech Republic yellow and ivory glazes with uranium in the Ditmar-Urbach and Terra Teplice companies were manufactured in the pre-war and inter-war period. The production of these glazes took place at the latest since the 1900, the material springs have existed since 1912. Their production ended in 1945. The most suitable method of non-destructive determination of uranium was the measurement of surface alpha activity on planar surfaces by a probe with a ZnS (Ag) scintillator constructed special for this bachelor thesis. Altogether 85 samples, evidence of this production, were measured. To determine the conversion of detected alpha activity to uranium content, an indirect calibration method was chosen to measure uranium content in three types of glazes by WDS analysis. In the studied set, uranium contents ranged from 0.2-2.2 % with the highest frequency ranging from 0.5-0.6 % U. 16 samples of yellow and ivory glazes were without added uranium with contents up to 322 ppm eU. Comparison of uranium contents determined by surface alpha activity measurement with area beta activity confirmed that the glazing does not form a saturated layer for beta radiation. Three types of glazes analyzed by WDS were also measured by XRF. By comparing uranium contents determined by both methods, it was found that...
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Ceramics for the First Grade of Primary School
FRAŇKOVÁ, Magdalena
At the beginning of the theoretical part the objects and tasks of the theses are defined. There are also described the teaching methods of project teaching at the primary schools. History of ceramics from all over the world from the Neolithic period is an integral part of the theoretical part. The forming techniques, modeling, glazing and burning techniques are described as well. In the practical part ten ceramics themes to the project teaching at the first grade of primary school are designed. There is a didactic documentation for teachers for each theme.
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The Possibilities of innovation of the sanitary ceramics body
Čech, Tomáš ; Chudomelka, Josef (referee) ; Sokolář, Radomír (advisor)
The aim of this thesis is to assess the possibility of increasing utility properties shard of sanitary ceramics. Description the current production of sanitary ceramics. Assessing of the impact steatite admixture into existing raw material mixture for the production of sanitary ceramics firing body characteristics (porosity, strength, thermal expansion) using the available scientific literature. Proposition the optimal dose of steatite material into the raw mixture. Evaluation of physical and mechanical properties of the resulting products of this recipe.
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