Sökning: "Hamaker constant"
Visar resultat 1 - 5 av 8 avhandlingar innehållade orden Hamaker constant.
1. Interactions between non-polar surfaces in water: Fokus on talc, pitch and surface roughness effects
Sammanfattning : The aim of this thesis work was to gain understanding of the interactions between talc mineral and surfaces, liquids and chemicals relevant for industrial applications, such as pulp and paper. Talc is used in the pulp and paper industry as a filler pigment, in control of pitch (lipophilic extractives) deposits and as a coating pigment. LÄS MER
2. Aqueous Processing of WC-Co Powders Aqueous processing of WC-Co powders
Sammanfattning : The object of this work is toobtain a fundamental understanding of the principal issuesconcerning the handling of WC-Co powders, in an aqueousmedium.The oxidation and dissolution oftungsten carbide powder dispersed in water was investigatedusing X-ray Photoelectron Spectroscopy (XPS) and leachingstudies. LÄS MER
3. Particle interactions at the nanoscale : From colloidal processing to self-assembled arrays
Sammanfattning : Nanostructured materials are the next generation of high-performance materials, harnessing the novel properties of their nanosized constituents. The controlled assembly of nanosized particles and the design of the optimal nanostructure require a detailed understanding of particle interactions and robust methods to tune them. LÄS MER
4. Aqueous Processing of WC-Co Powders
Sammanfattning : The object of this work is to obtain a fundamentalunderstanding of the principal issues concerning the handlingof an aqueous WC-Co powder suspension.The WO3 surface layer on the oxidised tungsten carbidepowder dissolves at pH>3 with the tungsten concentrationincreasing linearly with time. LÄS MER
5. Minerals and their dispersive interaction with bitumen
Sammanfattning : .... LÄS MER