Next Article in Journal
Investigation on the Cathodic Protection Effect of Low Pressure Cold Sprayed AlZn Coating in Seawater via Numerical Simulation
Next Article in Special Issue
Chemical Vapor Deposition of TaC/SiC on Graphite Tube and Its Ablation and Microstructure Studies
Previous Article in Journal
Application of FEM to Estimate Thermo-Mechanical Properties of Plasma Sprayed Composite Coatings
Previous Article in Special Issue
Oxidation Behavior and Mechanism of Al4SiC4 in MgO-C-Al4SiC4 System
Article Menu
Issue 7 (July) cover image

Export Article

Open AccessArticle
Coatings 2017, 7(7), 92; doi:10.3390/coatings7070092

Effect of Si3N4 Addition on Oxidation Resistance of ZrB2-SiC Composites

Department of Metallurgical and Materials Engineering, National Institute of Technology Durgapur, West Bengal 713209, India
Department of Metallurgical and Materials Engineering, Indian Institute of Technology Kharagpur, Bengal 713209, India
Author to whom correspondence should be addressed.
Received: 2 June 2017 / Revised: 25 June 2017 / Accepted: 26 June 2017 / Published: 30 June 2017
(This article belongs to the Special Issue Ultrahigh Temperature Ceramic Coatings and Composites)
View Full-Text   |   Download PDF [5844 KB, uploaded 30 June 2017]   |  


The oxidation behavior of ZrB2-20 vol % SiC and ZrB2-20 vol % SiC-5 vol % Si3N4 composites prepared by hot-pressing and subjected to isothermal exposure at 1200 or 1300 °C for durations of 24 or 100 h in air, as well as cyclic exposure at 1300 °C for 24 h, have been investigated. The oxidation resistance of the ZrB2-20 vol % SiC composite has been found to improve by around 20%–25% with addition of 5 vol % Si3N4 during isothermal or cyclic exposures at 1200 or 1300 °C. This improvement in oxidation resistance has been attributed to the formation of higher amounts of SiO2 and Si2N2O, as well as a greater amount of continuity in the oxide scale, because these phases assist in closing the pores and lower the severity of cracking by exhibiting self-healing type behavior. For both the composites, the mass changes are found to be higher during cyclic exposure at 1300 °C by about 2 times compared to that under isothermal conditions. View Full-Text
Keywords: borides; ultra-high temperature ceramic composites; oxidation; isothermal; cyclic; residual stress borides; ultra-high temperature ceramic composites; oxidation; isothermal; cyclic; residual stress

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Mallik, M.; Ray, K.K.; Mitra, R. Effect of Si3N4 Addition on Oxidation Resistance of ZrB2-SiC Composites. Coatings 2017, 7, 92.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Coatings EISSN 2079-6412 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top