2D Raman Mapping And Thermal Residual Stresses In Sic Grains Of Zrb2-Sic Ceramic Composites

Keywords

Raman mapping; Thermal residual stresses; ZrB -SiC ceramic composites 2

Abstract

Thermal residual stresses of ZrB2-17 vol% SiC, ZrB2-32 vol% SiC, and ZrB2-45 vol% SiC ceramics were estimated using the piezospectroscopy. High spatial resolution (~0.7 μm) 2D Raman mapping was used to determine the average peak position of SiC in all three ZrB2-SiC composites in addition to the peak position in pure SiC. A novel filtering technique was used to refine the relevant FLO SiC peak of interest, which included a combination of filtering procedures based on peak intensity, Full Width at Half Maximum, and its position. After data filtering, the thermal residual stresses in ZrB2-SiC composites were estimated using FLO average peak positions using piezospectroscopic coefficients available in the literature. The obtained results were also compared with theoretical calculations models developed in the literature.

Publication Date

12-1-2015

Publication Title

Ceramics International

Volume

41

Issue

10

Number of Pages

13630-13637

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1016/j.ceramint.2015.07.161

Socpus ID

84939132804 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84939132804

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