Search Results (6)
Enhancing the performance of highly filled polymerbonded Nd-Fe-B magnets: Integrated advanced surface treatments and additive manufacturing
This doctoral dissertation present research aimed into enhancing polymer-bonded Nd–Fe–B magnets through innovative surface treatments and additive manufacturing techniques, focusing on improving their mechanical strength, magnetic characteristics, and environmental stability. This research is critical for broadening the applicability of these magnets in sectors like green technologies and motion control systems. …
Surface modifications of cellulose nanomaterials: mechanisms, kinetics and their applications
Synthesized in green plants, cellulose is the most abundant natural biopolymer on the planet and is thus widely available, cheap and renewable. Furthermore, its hierarchical structure allows extraction of nanosized particles in the form of cellulose nanocrystals (CNCs), obtained with hydrolysis or cellulose nanofibrils (CNFs), isolated through chemical, biological pretreatment …
Alkali-activated steel slag-based materials
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 …
Freeze casting of hierarchically structured highly porous γ-Al2O3 monoliths
Highly porous ceramic γ‒Al2O3 monoliths are important in many applications, e.g., catalysis, thermal insulation and adsorption, yet they still have a lot of unrecognized potential. There is a lot of incentive to employ simple and green fabrication processes for the preparation of such porous ceramic materials; however, many challenges, especially …
Bioactive calcium phosphate coatings on zirconia ceramics
This doctoral thesis describes the synthesis and characterization of calcium phosphate (CaP) coatings on zirconia ceramics. The main application of coated zirconia is in medicine, particularly in the area of dental bone implants. Due to the favourable biological characteristics of CaP, it can be expected that the application of CaP …
High-alumina porcelain with improved mechanical and thermal properties
The study presents the influence of increasing the amount of β-spodumene (LiAlSi2O6) as Li2O-content flux on phase composition, microstructural evolution and physical properties of high alumina porcelain material containing ~61% of Al2O3. New porcelain compositions based on clays and high amount of calcined alumina were developed with the introduction of …