Browsing Faculty of Science by Author "Calahoo, Courtney"
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Mechanical–Structural Investigation of Ion-Exchanged Lithium Silicate Glass using Micro-Raman Spectroscopy
Calahoo, Courtney; Zwanziger, Josef W; Butler, Ian S (American Chemical Society, 2016-03-21)Micro-Raman spectroscopy was used to determine the structural modifications occurring in a simple ion-exchanged glass. The base lithium silicate composition 30Li2O–70SiO2 was studied as it underwent ion exchange, Li+ ↔ K+, ... -
Nanoindentation Study of the Surface of Ion-Exchanged Lithium Silicate Glass
Calahoo, Courtney; Zhang, Xiaofang; Zwanziger, Josef W (American Chemical Society, 2016-02-25)Variations in mechanical properties (stiffness and hardness) were measured as a function of case depth in ion-exchange glasses using nanoindentation. A simple silicate composition, 30Li2O–70Si2O, was exchanged (Li+ ↔ K+) ... -
Zero Thermal Expansion in ZrMgMo3O12: NMR Crystallography Reveals Origins of Thermoelastic Properties
Romao, Carl; Perras, Fred; Werner-Zwanziger, Ulrike; Lussier, Joey; Miller, Kimberley; Calahoo, Courtney; Zwanziger, Josef; Bieringer, Mario; Marinkovic, Bojan; Bryce, David; White, Mary Anne (American Chemical Society, 2015-03-23)The coefficient of thermal expansion of ZrMgMo3O12 has been measured and was found to be extremely close to zero over a wide temperature range including room temperature ( = (1.6 ± 0.2) × 10–7 K–1 from 25 to 450 °C by X-ray ...