Composite Oxide Fibres Grown by Internal Crystallisation Method

The internal crystallisation method (ICM) allows producing bundles containing hundreds and thousands of the fibres of a limited length. It is shown in the present paper that ICM can be used to produce fibres composed of a sapphire matrix and inclusions of calcium hexaaluminate. The fabrication of su...

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Main Authors:	Sergei Mileiko, Andrew Kolchin, Vyacheslav Kiiko, Natalia Novokhatskaya
Format:	Article
Language:	English
Published:	MDPI AG 2017-12-01
Series:	Fibers
Subjects:	ceramic fibre composites mechanical testing fracture toughness microstructure internal crystallisation method
Online Access:	https://www.mdpi.com/2079-6439/5/4/48

id	doaj-cf4655ac487842c9ad82f176f3113e9b
record_format	Article
spelling	doaj-cf4655ac487842c9ad82f176f3113e9b2020-11-24T22:05:33ZengMDPI AGFibers2079-64392017-12-01544810.3390/fib5040048fib5040048Composite Oxide Fibres Grown by Internal Crystallisation MethodSergei Mileiko0Andrew Kolchin1Vyacheslav Kiiko2Natalia Novokhatskaya3Institute of Solid State Physics of RAS, 2 Academician Ossypian Str., Chernogolovka Moscow Distr., 142432 Chernogolovka, RussiaInstitute of Solid State Physics of RAS, 2 Academician Ossypian Str., Chernogolovka Moscow Distr., 142432 Chernogolovka, RussiaInstitute of Solid State Physics of RAS, 2 Academician Ossypian Str., Chernogolovka Moscow Distr., 142432 Chernogolovka, RussiaInstitute of Solid State Physics of RAS, 2 Academician Ossypian Str., Chernogolovka Moscow Distr., 142432 Chernogolovka, RussiaThe internal crystallisation method (ICM) allows producing bundles containing hundreds and thousands of the fibres of a limited length. It is shown in the present paper that ICM can be used to produce fibres composed of a sapphire matrix and inclusions of calcium hexaaluminate. The fabrication of such composite fibres is described in the present paper. An effect of the calcium hexaaluminate inclusions in sapphire fibres is evaluated by testing model composites with brittle molybdenum matrices. The critical stress intensity factors of composite-fibre/molybdenum-matrix specimens are higher than those of specimens reinforced with sapphire fibres. The model specimens reveal non-linear stress/strain behaviour. The results of this work show the effectiveness of composite fibres as a reinforcement for brittle matrices.https://www.mdpi.com/2079-6439/5/4/48ceramic fibrecompositesmechanical testingfracture toughnessmicrostructureinternal crystallisation method
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Sergei Mileiko Andrew Kolchin Vyacheslav Kiiko Natalia Novokhatskaya
spellingShingle	Sergei Mileiko Andrew Kolchin Vyacheslav Kiiko Natalia Novokhatskaya Composite Oxide Fibres Grown by Internal Crystallisation Method Fibers ceramic fibre composites mechanical testing fracture toughness microstructure internal crystallisation method
author_facet	Sergei Mileiko Andrew Kolchin Vyacheslav Kiiko Natalia Novokhatskaya
author_sort	Sergei Mileiko
title	Composite Oxide Fibres Grown by Internal Crystallisation Method
title_short	Composite Oxide Fibres Grown by Internal Crystallisation Method
title_full	Composite Oxide Fibres Grown by Internal Crystallisation Method
title_fullStr	Composite Oxide Fibres Grown by Internal Crystallisation Method
title_full_unstemmed	Composite Oxide Fibres Grown by Internal Crystallisation Method
title_sort	composite oxide fibres grown by internal crystallisation method
publisher	MDPI AG
series	Fibers
issn	2079-6439
publishDate	2017-12-01
description	The internal crystallisation method (ICM) allows producing bundles containing hundreds and thousands of the fibres of a limited length. It is shown in the present paper that ICM can be used to produce fibres composed of a sapphire matrix and inclusions of calcium hexaaluminate. The fabrication of such composite fibres is described in the present paper. An effect of the calcium hexaaluminate inclusions in sapphire fibres is evaluated by testing model composites with brittle molybdenum matrices. The critical stress intensity factors of composite-fibre/molybdenum-matrix specimens are higher than those of specimens reinforced with sapphire fibres. The model specimens reveal non-linear stress/strain behaviour. The results of this work show the effectiveness of composite fibres as a reinforcement for brittle matrices.
topic	ceramic fibre composites mechanical testing fracture toughness microstructure internal crystallisation method
url	https://www.mdpi.com/2079-6439/5/4/48
work_keys_str_mv	AT sergeimileiko compositeoxidefibresgrownbyinternalcrystallisationmethod AT andrewkolchin compositeoxidefibresgrownbyinternalcrystallisationmethod AT vyacheslavkiiko compositeoxidefibresgrownbyinternalcrystallisationmethod AT natalianovokhatskaya compositeoxidefibresgrownbyinternalcrystallisationmethod
_version_	1725825842710315008

Composite Oxide Fibres Grown by Internal Crystallisation Method

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