In situ three point bending device for measurements of vibrational response of ceramics under stress by microRaman spectroscopy
Abbreviated Journal Title
Adv. Appl. Ceram.
Residual stress; Ceramics; Raman spectroscopy; In situ bending; ZrB2 +; SiC; LaCoO3; LACOO3 BASED PEROVSKITES; MECHANICAL-PROPERTIES; RAMAN-SPECTROSCOPY; TRANSITION; ZIRCONIUM; FERROELASTICITY; MICROSTRUCTURE; LA1-XCAXCOO3; TEMPERATURE; COMPOSITES; Materials Science, Ceramics
An in-situ three point bending device was designed to study the vibrational response of ZrB2 + SiC and LaCoO3 ceramics under loading. The developed device was calibrated using four different materials, Al, La0.8Sr0.2Ga0.8Mg0.2O3, La0.8Ca0.2CoO3, and B4C, with prior known properties and the measured stress-strain deformation curves were in excellent agreement with the results published in the literature. The piezo-spectroscopic coefficients of LO and TO SiC Raman bands have been established for ZrB2 + 10wt% SiC ceramic composite. Several eight hour constant 66 MPa load experiments were performed to estimate if a tensile load would have an effect on vibrational properties of LaCoO3 perovskite.
Advances in Applied Ceramics
"In situ three point bending device for measurements of vibrational response of ceramics under stress by microRaman spectroscopy" (2013). Faculty Bibliography 2010s. 2631.