A5071032244- Glass properties and applications
- Material Dynamics and Properties
- Metallic Glasses and Amorphous Alloys
- Mineralogy and Gemology Studies
- Phase-change materials and chalcogenides
- Material Science and Thermodynamics
- Recycling and utilization of industrial and municipal waste in materials production
- Ferroelectric and Piezoelectric Materials
- Advanced materials and composites
- Crystal Structures and Properties
- Microwave Dielectric Ceramics Synthesis
- Chemical Thermodynamics and Molecular Structure
- Bone Tissue Engineering Materials
- Solid-state spectroscopy and crystallography
- Pigment Synthesis and Properties
- Luminescence Properties of Advanced Materials
- Advanced ceramic materials synthesis
- Advanced X-ray and CT Imaging
- Dental Implant Techniques and Outcomes
- Dental materials and restorations
- Nuclear materials and radiation effects
Pennsylvania State University
2018-2023
Park University
2021
Coe College
2017
The short-range structure of TeO2 glass was studied by a combined solid-state NMR, Raman, and first-principles calculation approach. Glass samples enriched in oxygen-17 were prepared, both 125Te 17O spectra recorded. In addition, α-TeO2 γ-TeO2 crystal phases recorded to aid spectral assignment. identity the confirmed X-ray diffraction Raman spectroscopy. First-principles computations on as well several potassium tellurites carried out for comparison. It found that is best described highly...
Abstract Predicting the effects of ceramic microstructures on macroscopic properties, such as Knoop hardness, has long been a difficult task. This is particularly true in glass–ceramics, where multiple unique crystalline phases can overlap with background glassy phase. The combination and makes it to quantify percent crystallinity predict properties that are result chemical composition microstructure. To overcome this difficulty take first step build system for characterizing glass‐ceramics,...
Abstract Germanate glasses are of particular interest for their excellent optical properties as well abnormal structural changes that appear with the addition modifiers, giving rise to so‐called germanate anomaly . This refers nonmonotonic compositional scaling exhibited by alkali and has been studied various spectroscopy techniques. However, it difficult understand its atomic scale origin, especially since germanium nucleus is not easily observed nuclear magnetic resonance. To gain insights...
Abstract Viscosity and coefficient of thermal expansion (CTE) are both crucial properties in the design new glasses for various applications. In this work, we extend application dilatometry to measure two important parameters governing viscosity glass‐forming systems, viz., glass transition temperature fragility index. We also describe a method determine dilatometric fictive ( T f,DIL ) present data five unique compositions covering range fragilities spanning 38‐96, which subjected cooling...
Abstract Color is an important property of lithium disilicate (LD) glass–ceramics for a variety applications. For example, the color dental needs to be tuned match natural teeth. The present study examines optical properties LD containing tantalate as secondary phase via ultraviolet–visible spectroscopy. A large data set analyzed investigate relationship between heat treatments and properties, specifically L * b coordinates. coordinates are dependent on treatment following previously...
Abstract Lithium disilicate glass‐ceramics were discovered in the 1950s, and evolution of main target phase these materials is well known. However, lithium system still an area active research, especially when a secondary introduced since phases not currently understood. The present study examines phases, as tantalate, via X‐ray diffraction. A large data set obtained to investigate all phases. It found that nucleation precursor metasilicate coupled both primary phase, disilicate, tantalate....
Predicting the effects of ceramic microstructure on macroscopic properties, such as Knoop hardness, has long been a difficult task. This is particularly true in glass-ceramics, where multiple unique crystalline phases can overlap with background glassy phase. The combination and makes it to quantify percent crystallinity predict properties that are result chemical composition microstructure. To overcome this difficulty, we analyze scanning electron microscopy (SEM) images using two...