In situ three point bending device for measurements of vibrational response of ceramics under stress by microRaman spectroscopy

    Authors

    N. Fist; J. Dinan; R. Stadelmann;N. Orlovskaya

    Comments

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    Abbreviated Journal Title

    Adv. Appl. Ceram.

    Keywords

    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

    Abstract

    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.

    Journal Title

    Advances in Applied Ceramics

    Volume

    111

    Issue/Number

    7

    Publication Date

    1-1-2013

    Document Type

    Article

    Language

    English

    First Page

    433

    Last Page

    439

    WOS Identifier

    WOS:000308748900012

    ISSN

    1743-6753

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