Skip navigation
Skip navigation

Vapour phase preparation and characterisation of SiC f-SiC and C f-SiC ceramic matrix composites

Udayakumar, A.; Bhuvana, R.; Kalyanasundaram, Shankar; Subrahmanyam, J.; Balasubramanian, M.; Kannan, T.S.

Description

Several 2D SiC f-SiC and C f-SiC composites were fabricated using isothermal and isobaric Chemical Vapour Infiltration (ICVI) process. The reinforcements used in the above composites are Nicalon CG fabric and C fabric. Prior to SiC matrix infiltration, BN and C interfaces were applied to the fibre by using the pre-cursors Boron Trichloride (BCl 3)-Ammonia (NH 3) and Methane (CH 4) respectively to improve the mechanical performance of the composites. SiC matrix was infiltrated by the...[Show more]

dc.contributor.authorUdayakumar, A.
dc.contributor.authorBhuvana, R.
dc.contributor.authorKalyanasundaram, Shankar
dc.contributor.authorSubrahmanyam, J.
dc.contributor.authorBalasubramanian, M.
dc.contributor.authorKannan, T.S.
dc.date.accessioned2015-12-13T22:45:25Z
dc.date.available2015-12-13T22:45:25Z
dc.identifier.issn1013-9826
dc.identifier.urihttp://hdl.handle.net/1885/79773
dc.description.abstractSeveral 2D SiC f-SiC and C f-SiC composites were fabricated using isothermal and isobaric Chemical Vapour Infiltration (ICVI) process. The reinforcements used in the above composites are Nicalon CG fabric and C fabric. Prior to SiC matrix infiltration, BN and C interfaces were applied to the fibre by using the pre-cursors Boron Trichloride (BCl 3)-Ammonia (NH 3) and Methane (CH 4) respectively to improve the mechanical performance of the composites. SiC matrix was infiltrated by the decomposition of Methyl Trichloro Silane-CH 3SiCl 3 (MTS) in the presence of hydrogen at the temperature ranging from 950°C to 980°C. H 2/MTS flow rate ratio used for this study is 16:1.An appropriate temperature for uniform SiC infiltration without any premature pore closures have been obtained by kinetic experiment. Density and porosity of the above composites were measured using the method described by EN1389:2003. Various mechanical characterizations like flexural strength, tensile strength and fracture toughness of the SiC f-SiC composites were also studied. The SiC f-SiC composites were subjected to thermal exposure (1000°C for 100 hr in an oxidizing atmosphere) and tensile strength results obtained before and after thermal exposure were compared. RT Flexural Strength and Fracture Toughness (K IC) of composite-SQAV (SiC f/C/SiC) and composite-SQBII ( SiC f/BN/SiC) are measured by 3-point bending and results were compared. RT Flexural strength of C f-SiC composites with C interface of two thicknesses were measured and compared. X-ray diffraction and micro structure studies have been made to confirm the β-SiC and to see the fibre/matrix interface, uniformity of infiltration, fibre pullout and crack deflections.
dc.publisherTrans Tech Publications
dc.sourceKey Engineering Materials
dc.subjectKeywords: Chemical vapour deposition; Chemical Vapour Infiltration; Interface; Methyl Trichloro Silane (MTS); Nicalon CG cloth; SiC f -siC composites; Bending strength; Boron; Boron compounds; Carbon fiber reinforced plastics; Ceramic materials; Chemical Ceramic matrix composites; Chemical vapour deposition; Chemical Vapour Infiltration; Interface; Methyl Trichloro Silane (MTS); Nicalon CG cloth; SiC f-siC composites
dc.titleVapour phase preparation and characterisation of SiC f-SiC and C f-SiC ceramic matrix composites
dc.typeJournal article
local.description.notesImported from ARIES
local.identifier.citationvolume395
dc.date.issued2009
local.identifier.absfor060700 - PLANT BIOLOGY
local.identifier.ariespublicationf5625xPUB8150
local.type.statusPublished Version
local.contributor.affiliationUdayakumar, A., National Aerospace Laboratories
local.contributor.affiliationBhuvana, R., National Aerospace Laboratories
local.contributor.affiliationKalyanasundaram, Shankar, College of Engineering and Computer Science, ANU
local.contributor.affiliationSubrahmanyam, J., Composite Division
local.contributor.affiliationBalasubramanian, M., Indian Institute of Technology
local.contributor.affiliationKannan, T.S., National Aerospace Laboratories
local.bibliographicCitation.startpage209
local.bibliographicCitation.lastpage232
local.identifier.doi10.4028/0-87849-361-1.209
dc.date.updated2016-02-24T09:39:56Z
local.identifier.scopusID2-s2.0-58949084948
CollectionsANU Research Publications

Download

There are no files associated with this item.


Items in Open Research are protected by copyright, with all rights reserved, unless otherwise indicated.

Updated:  19 May 2020/ Responsible Officer:  University Librarian/ Page Contact:  Library Systems & Web Coordinator