Abstract
Maximum differences in the chemical free energy between a crystalline oxide and its fully amorphous counterpart at are estimated from melting point and enthalpy of fusion data for oxides in ten different metal systems (Be, Zn, Cu, Al, Cr, Fe, Ni, Zr, Sn, and Ti). The results are used to determine the relative thermodynamic stability of crystalline and amorphous phases in aqueous solutions in order to understand the possible influence of amorphism on precursor pitting sites in passive films. Variations in the degree of amorphism are treated by using different values, where , and examining the resulting effects on pH-dependent oxide solubility and equilibria. Estimated surface energies of high-angle grain boundaries are used to show that grain boundaries in crystalline oxide films may be treated as amorphous regions.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
