Experimental and computational analysis for thermo-erosive stability assessment of ZrB2-SiC based multiphase composites

Purwar, Anupam and Ariharan, S and Basu, Bikramjit and Kumar, B Venkata Manoj (2019) Experimental and computational analysis for thermo-erosive stability assessment of ZrB2-SiC based multiphase composites. In: INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS, 84 .

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Abstract

High temperature erosion tests were conducted on spark plasma sintered ZrB2-SiC based multiphase ceramic composites at 1073 K in thermo-erosive environment for 1200 s with a net energy deposition per unit area of 50.5 MJ/m(2). The thermo-erosive mechanisms were qualitatively discussed using XRD and SEM-EDS analyses. Efforts were made to assess feasibility of identified reactions at the computed temperatures to support reaction mechanism for oxide formation in eroded region. Finite element (FE) analysis with high-quality structural elements was used to determine the spatial temperature and stress distribution in the eroded region. Taken together, the present study highlights the significance of combined approach of computational and experimental analysis in understanding the thermo-erosive-structural stability in applications where erosion can limit the performance of ceramic composites.

Item Type:	Journal Article
Publication:	INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS
Publisher:	ELSEVIER SCI LTD
Additional Information:	copyright for this article belongs to ELSEVIER SCI LTD
Keywords:	ZrB2; SiC; Erosion wear; Wear mechanisms; Finite element analysis
Department/Centre:	Division of Chemical Sciences > Materials Research Centre Others
Date Deposited:	30 Oct 2019 11:50
Last Modified:	30 Oct 2019 11:50
URI:	http://eprints.iisc.ac.in/id/eprint/63702

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