Abstract
Recently, application of in situ, high temperature nuclear magnetic resonance (NMR) spectroscopy to study silicate, borate and aluminate melts has lead to a variety of findings on structural changes with temperature (particularly in cation coordination number), and on the dynamics of exchange and diffusion. New data are presented on chemical shifts and spin-lattice relaxation of 23Na in a number of silicate liquids to about 1200°C, and these results are discussed in light of other recent studies. These results clearly demonstrate the mixed alkali effect on cation motion. New high temperature magic angle spinning 11B NMR spectra for a sodium borate liquid are also presented. As in previous studies of aluminate and silicate melts, the latter data set suggests that the mechanism of viscous flow is closely tied to local exchange of cationic species.
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.
