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Alkali-activated steel slag-based materials

Author(s): Mark Češnovar (Author), Vilma Ducman (Supervisor), Srečo Davor Škapin (Co-Supervisor)

Year: 2022

Type: Doctoral dissertation

Alkali activation is a chemical process in which aluminosilicate-rich materials that dissolve in basic media at room temperature form binding phases by polycondensation. Alkali-activated materials (AAM), also called geopolymers, are inorganic aluminosilicate-based materials produced mainly from fly ashes and metallurgical slags or clays with high Al and Si content and …

Vacuum metrology and the role of surface conditions on the tangential momentum accommodation of molecules in a rarefied gas

Author(s): Tim Verbovšek (Author), Janez Šetina (Supervisor)

Year: 2021

Type: Doctoral dissertation

The interactions between gas molecules and a surface strongly affect the behaviour of systems in a large array of research fields, such as vacuum science and metrology, microfluidics, particle physics, and nuclear physics. In this work, focus is given to the momentum accommodation of gas molecules. The parameter used in …