Oxidation behaviour of SiC/SiC ceramic matrix composites in air

Nasrin Al Nasiri; Niranjan Patra; Daniel D. Jayaseelan; William E. Lee

doi:10.1016/j.jeurceramsoc.2016.05.051

Oxidation behaviour of SiC/SiC ceramic matrix composites in air

Nasrin Al Nasiri
, Niranjan Patra
, Daniel D. Jayaseelan
, William E. Lee

Research output: Contribution to journal › Article › peer-review

Abstract

Oxidation of silicon melt infiltrated SiC/SiC ceramic matrix composites (CMC) was studied in air at 1200-1400 °C for 1, 5, 24 and 48 h. Weight gain and oxide layer thickness measurements revealed the oxidation follows parabolic reaction kinetics with increase in temperature and time. XRD showed the extent of oxide layer (SiO2) formation was greatest after 48 h at 1400 °C: an observation confirmed by X-ray photoelectron spectroscopy (XPS), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM) analyses. Oxide layer thickness varied from 1 μm after 48 h at 1200 °C to 8 μm after 48 h at 1400 °C. Oxidation of SiC/SiC composites is both temperature and time dependent with an activation energy of 619 kJ mol-1. BN coatings around SiC fibres showed good resistance to oxidation even after 48 h at 1400 °C.

Original language	English
Pages (from-to)	3293-3302
Journal	Journal of the European Ceramic Society
Volume	36
Issue number	14
Early online date	14 Jun 2016
DOIs	https://doi.org/10.1016/j.jeurceramsoc.2016.05.051
Publication status	Published - 30 Nov 2016

Keywords

Metallurgy and materials

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10.1016/j.jeurceramsoc.2016.05.051

https://doi.org/10.1016/j.jeurceramsoc.2016.05.051

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title = "Oxidation behaviour of SiC/SiC ceramic matrix composites in air",

abstract = "Oxidation of silicon melt infiltrated SiC/SiC ceramic matrix composites (CMC) was studied in air at 1200-1400 °C for 1, 5, 24 and 48 h. Weight gain and oxide layer thickness measurements revealed the oxidation follows parabolic reaction kinetics with increase in temperature and time. XRD showed the extent of oxide layer (SiO2) formation was greatest after 48 h at 1400 °C: an observation confirmed by X-ray photoelectron spectroscopy (XPS), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM) analyses. Oxide layer thickness varied from 1 μm after 48 h at 1200 °C to 8 μm after 48 h at 1400 °C. Oxidation of SiC/SiC composites is both temperature and time dependent with an activation energy of 619 kJ mol-1. BN coatings around SiC fibres showed good resistance to oxidation even after 48 h at 1400 °C.",

keywords = "Metallurgy and materials",

author = "\{Al Nasiri\}, Nasrin and Niranjan Patra and Jayaseelan, \{Daniel D.\} and Lee, \{William E.\}",

year = "2016",

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doi = "10.1016/j.jeurceramsoc.2016.05.051",

language = "English",

volume = "36",

pages = "3293--3302",

journal = "Journal of the European Ceramic Society",

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}

TY - JOUR

T1 - Oxidation behaviour of SiC/SiC ceramic matrix composites in air

AU - Al Nasiri, Nasrin

AU - Patra, Niranjan

AU - Jayaseelan, Daniel D.

AU - Lee, William E.

PY - 2016/11/30

Y1 - 2016/11/30

N2 - Oxidation of silicon melt infiltrated SiC/SiC ceramic matrix composites (CMC) was studied in air at 1200-1400 °C for 1, 5, 24 and 48 h. Weight gain and oxide layer thickness measurements revealed the oxidation follows parabolic reaction kinetics with increase in temperature and time. XRD showed the extent of oxide layer (SiO2) formation was greatest after 48 h at 1400 °C: an observation confirmed by X-ray photoelectron spectroscopy (XPS), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM) analyses. Oxide layer thickness varied from 1 μm after 48 h at 1200 °C to 8 μm after 48 h at 1400 °C. Oxidation of SiC/SiC composites is both temperature and time dependent with an activation energy of 619 kJ mol-1. BN coatings around SiC fibres showed good resistance to oxidation even after 48 h at 1400 °C.

AB - Oxidation of silicon melt infiltrated SiC/SiC ceramic matrix composites (CMC) was studied in air at 1200-1400 °C for 1, 5, 24 and 48 h. Weight gain and oxide layer thickness measurements revealed the oxidation follows parabolic reaction kinetics with increase in temperature and time. XRD showed the extent of oxide layer (SiO2) formation was greatest after 48 h at 1400 °C: an observation confirmed by X-ray photoelectron spectroscopy (XPS), energy dispersive spectroscopy (EDS) and transmission electron microscopy (TEM) analyses. Oxide layer thickness varied from 1 μm after 48 h at 1200 °C to 8 μm after 48 h at 1400 °C. Oxidation of SiC/SiC composites is both temperature and time dependent with an activation energy of 619 kJ mol-1. BN coatings around SiC fibres showed good resistance to oxidation even after 48 h at 1400 °C.

KW - Metallurgy and materials

U2 - 10.1016/j.jeurceramsoc.2016.05.051

DO - 10.1016/j.jeurceramsoc.2016.05.051

M3 - Article

SN - 0955-2219

VL - 36

SP - 3293

EP - 3302

JO - Journal of the European Ceramic Society

JF - Journal of the European Ceramic Society

IS - 14

ER -

Oxidation behaviour of SiC/SiC ceramic matrix composites in air

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