Open Access. Powered by Scholars. Published by Universities.®
Physical Sciences and Mathematics Commons™
Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 3 of 3
Full-Text Articles in Physical Sciences and Mathematics
The Formation Of Prenucleation Clusters For Calcium Fluoride, Taylor M. Muterspaw
The Formation Of Prenucleation Clusters For Calcium Fluoride, Taylor M. Muterspaw
Browse all Theses and Dissertations
There have been limited studies on the analysis of the nucleation and precipitation behind calcium fluoride. Earlier studies support a nucleation mechanism in agreement to classical nucleation theory (CNT) in which a surface nucleation mechanism is required for calcium fluoride. This experiment devised using the ISE method to calcium fluoride to find evidence of a nucleation mechanism like that of calcium carbonate (prenucleation cluster pathway). The potential and pH were recorded versus time and the potential data was converted to nCa2+ data of free calcium ions. It was determined that there was evidence of a similar nucleation mechanism for calcium …
Hydrothermal Atomic Force Microscopy Investigation Of Barite Growth: The Role Of Spectator Ions In Elementary Step Edge Growth Kinetics And Hillock Morphology, Sarah A. Jindra
Browse all Theses and Dissertations
To better understand the role of spectator ions in barite growth, the kinetics of step edge growth on barite (001) surfaces were studied under various salt solutions. Hydrothermal Atomic Force Microscopy (HAFM) was used to investigate the effect of background electrolytes (NaCl, NaBr and NaNO3) as a function of saturation index and ionic strength (I) on barite growth sourced at dislocations at 108 oC. Results show that hillock morphology is affected by I, as well as type of anion, where the prevalence of steps aligned on the [010] direction is highest under Cl- …
Hydrothermal Atomic Force Microscopy Investigation Of Barite Growth: The Role Of Spectator Ions In Elementary Step Edge Growth Kinetics And Hillock Morphology, Sarah A. Jindra
Browse all Theses and Dissertations
To better understand the role of spectator ions in barite growth, the kinetics of step edge growth on barite (001) surfaces were studied under various salt solutions. Hydrothermal Atomic Force Microscopy (HAFM) was used to investigate the effect of background electrolytes (NaCl, NaBr and NaNO3) as a function of saturation index and ionic strength (I) on barite growth sourced at dislocations at 108 oC. Results show that hillock morphology is affected by I, as well as type of anion, where the prevalence of steps aligned on the [010] direction is highest under Cl- There is a modest increase in kinetic …