Phase Transformations of Alkaline-Earth Aluminosilicate Glasses during Isothermal Heat Treatment

Polymorphous Transformations in Alkaline-Earth Silicates

Structure of Rare-Earth Aluminosilicate Glasses Probed by Solid-State NMR Spectroscopy and Quantum Chemical Calculations

Results presented in this thesis are based on the following publications, which are referred to by the corresponding roman numbers I-IV: Reprints were made with the permission from the publishers.

SPECIATION AND LOCAL STRUCTURE IN ALKALI AND ALKALINE EARTH SILICATE GLASSES: CONSTRAINTS FROM 29Si NMR SPECTROSCOPY

‘?Si NMR spectroscopy provides important contributions to the understanding of silicate glass structure. as the resonance frequency is sensitive to several aspects of the local chemical environment (including intertetrahedral bond angles. bond distances. and number of bridging oxygens per silicon atom). New data on a series of binary alkali and alkaline earth glasses are presented which highlig...

Influence of heat generation on the phase transformations and impact responses of composite plates with embedded SMA wires

In the present research, in contrast to the available papers, not only the superelasticity but also the shape memory effects are taken into account in determination of the impact responses. At the same time, in addition to modifying Brinson’s model for the shape memory alloys (SMAs), to include new parameters and loading events, and Hertz contact law, distributions of the SMA phases are conside...

Interface reorientation during coherent phase transformations

The universal thermodynamic driving force for coherent plane interface reorientation (IR) during first-order phase transformations (PT) in solids is derived. The relation between the rates of IR and interface propagation (IP) and the corresponding driving forces are derived for combined athermal and drag interface friction. The coupled evolution of IR and IP during cubic-tetragonal and tetragon...