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National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Effect of Selected Variables on the Properties and Stability of Ettringite
 Kramoliš, Lukáš ; Kulísek, Karel (referee) ; Fridrichová, Marcela (advisor)
The thesis deals with the termodynamic stability of synthetically formed ettringite. It focuses on ettringite prepared by the direct synthesis of aluminum sulphate and calcium hydroxide. Stamples were stored in a laboratory environment and in a saturated water vapor. Monitoring of mineralogical composition was performed using XRD analysis, differential thermal analysis (DTA) and scanning electron microscopy (SEM).
Detailed record
Laser cutting with air pressure assistance
 Kramoliš, Lukáš ; Hála, Michal (referee) ; Mrňa, Libor (advisor)
This project, elaborated within the engineering studies (code of field of study: N2301), deal with air supported laser cutting and its practical usage in industry. The project is divided into theoretical and experimental sections, consisting of detailed description of several successive steps of the experiment. The theoretical section describes the principle and function of laser, individual types of lasers and their classification, laser beam properties, laser cutting, etc. The practical part is focused on finding of a set of optimal cutting parameters, assessment of results of air supported laser cutting in terms of quality and accuracy of cutting surface. This part is followed by comparison of cutting surfaces with a conventional technology of laser cutting that uses oxygen and nitrogen. Final part of the project evaluates applicability of this unconventional technology from the economic point of view.
Detailed record
Effect of Selected Variables on the Properties and Stability of Ettringite
 Kramoliš, Lukáš ; Kulísek, Karel (referee) ; Fridrichová, Marcela (advisor)
The thesis deals with the termodynamic stability of synthetically formed ettringite. It focuses on ettringite prepared by the direct synthesis of aluminum sulphate and calcium hydroxide. Stamples were stored in a laboratory environment and in a saturated water vapor. Monitoring of mineralogical composition was performed using XRD analysis, differential thermal analysis (DTA) and scanning electron microscopy (SEM).
Detailed record
Laser cutting with air pressure assistance
 Kramoliš, Lukáš ; Hála, Michal (referee) ; Mrňa, Libor (advisor)
This project, elaborated within the engineering studies (code of field of study: N2301), deal with air supported laser cutting and its practical usage in industry. The project is divided into theoretical and experimental sections, consisting of detailed description of several successive steps of the experiment. The theoretical section describes the principle and function of laser, individual types of lasers and their classification, laser beam properties, laser cutting, etc. The practical part is focused on finding of a set of optimal cutting parameters, assessment of results of air supported laser cutting in terms of quality and accuracy of cutting surface. This part is followed by comparison of cutting surfaces with a conventional technology of laser cutting that uses oxygen and nitrogen. Final part of the project evaluates applicability of this unconventional technology from the economic point of view.
Detailed record

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