ISO/TS 6857:2024

Fine ceramics (advanced ceramics, advanced technical ceramics) — Physical properties of ceramic composites — Guidelines for determination of void and fibre contents in polished cross section by image analysis

This document describes the methods for the determination of void and fibre with specific orientation contents in a polished cross section of continuous fibre-reinforced ceramic matrix composites by image analysis. The methods apply to all ceramic matrix composites with continuous fibre reinforcement: bidirectional (2D) and tridirectional (3D). The methods also apply to carbon-fibre-reinforced carbon matrix composites (also known as: carbon/carbon or C/C). NOTE The result obtained by the method is not volume content but area content.

Céramiques techniques (céramiques avancées, céramiques techniques avancées) — Propriétés physiques des composites céramiques — Lignes directrices pour la determination du taux de porosité et de la teneur en fibre sur une section polie par analyse d'images

General Information

• Status: Published
• Publication Date: 21-Feb-2024
• ICS: 81.060.30 - Advanced ceramics
• Technical Committee: ISO/TC 206 - Fine ceramics
• Drafting Committee: ISO/TC 206 - Fine ceramics
• Current Stage: 6060 - International Standard published
• Start Date: 22-Feb-2024
• Due Date: 20-May-2024
• Completion Date: 22-Feb-2024

Standards Content (Sample)

Technical
Specification
ISO/TS 6857
First edition
Fine ceramics (advanced ceramics,
2024-02
advanced technical ceramics) —
Physical properties of ceramic
composites — Guidelines for
determination of void and fibre
contents in polished cross section
by image analysis
Céramiques techniques (céramiques avancées, céramiques
techniques avancées) — Propriétés physiques des composites
céramiques — Lignes directrices pour la determination du taux
de porosité et de la teneur en fibre sur une section polie par
analyse d'images
Reference number
ISO/TS 6857:2024(en) © ISO 2024

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ISO/TS 6857:2024(en)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2024
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland

© ISO 2024 – All rights reserved
ii

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ISO/TS 6857:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Significance and use . 2
6 Apparatus . 2
7 Test specimen . 2
7.1 Sampling .2
7.2 Mounting .3
7.3 Grinding and polishing .3
8 Procedures . 3
8.1 Calibration .3
8.2 Image acquisition .3
8.3 Void area content .3
8.3.1 Binarization .
...

FINAL
TECHNICAL ISO/DTS
DRAFT
SPECIFICATION 6857
ISO/TC 206
Fine ceramics (advanced ceramics,
Secretariat: JISC
advanced technical ceramics) —
Voting begins on:
2023-11-22 Physical properties of ceramic
composites — Guidelines for
Voting terminates on:
2024-01-17
determination of void and fibre
contents in polished cross section by
image analysis
RECIPIENTS OF THIS DRAFT ARE INVITED TO
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
DOCUMENTATION.
IN ADDITION TO THEIR EVALUATION AS
Reference number
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO-
ISO/DTS 6857:2023(E)
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN-
DARDS TO WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 1 ----------------------
ISO/DTS 6857:2023(E)
FINAL
TECHNICAL ISO/DTS
DRAFT
SPECIFICATION 6857
ISO/TC 206
Fine ceramics (advanced ceramics,
Secretariat: JISC
advanced technical ceramics) —
Voting begins on:
Physical properties of ceramic
composites — Guidelines for
Voting terminates on:
determination of void and fibre
contents in polished cross section by
image analysis
COPYRIGHT PROTECTED DOCUMENT
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
or ISO’s member body in the country of the requester.
RECIPIENTS OF THIS DRAFT ARE INVITED TO
ISO copyright office
SUBMIT, WITH THEIR COMMENTS, NOTIFICATION
OF ANY RELEVANT PATENT RIGHTS OF WHICH
CP 401 • Ch. de Blandonnet 8
THEY ARE AWARE AND TO PROVIDE SUPPOR TING
CH-1214 Vernier, Geneva
DOCUMENTATION.
Phone: [phone]
IN ADDITION TO THEIR EVALUATION AS
Reference number
Email: [e-mail]
BEING ACCEPTABLE FOR INDUSTRIAL, TECHNO­
ISO/DTS 6857:2023(E)
Website: www.iso.org
LOGICAL, COMMERCIAL AND USER PURPOSES,
DRAFT INTERNATIONAL STANDARDS MAY ON
Published in Switzerland
OCCASION HAVE TO BE CONSIDERED IN THE
LIGHT OF THEIR POTENTIAL TO BECOME STAN­
DARDS TO WHICH REFERENCE MAY BE MADE IN
ii
  © ISO 2023 – All rights reserved
NATIONAL REGULATIONS. © ISO 2023

---------------------- Page: 2 ----------------------
ISO/DTS 6857:2023(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Significance and use .2
6 Apparatus . 2
7 Test specimen . 3
7.1 Sampling . 3
7.2 Mounting . 3
7.3 Grinding and polishing .
...

ISO/TS DTS 6857:2023(E)
ISO /TC 206/WG 4
Secretariat: JISC
Date: 2023-11-09-15
Fine ceramics (advanced ceramics, advanced technical ceramics) –— Physical properties of
ceramic composites –— Guidelines for determination of void and fibre contents in polished
cross section by image analysis

DTS stage

Warning for WDs and CDs
This document is not an ISO International Standard. It is distributed for review and comment. It is subject to
change without notice and may not be referred to as an International Standard.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of
which they are aware and to provide supporting documentation.

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ISO/TSDTS 6857:2023(E)
© ISO 2023
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no
part of this publication may be reproduced or utilized otherwise in any form or by any means,
electronic or mechanical, including photocopying, or posting on the internet or an intranet, without
prior written permission. Permission can be requested from either ISO at the address below or
ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: [phone]
Email: [e-mail]
Website: www.iso.orgwww.iso.org
Published in Switzerland
ii © ISO 2023 – All rights reserved
ii © ISO 2023 – All rights reserved

---------------------- Page: 2 ----------------------
ISO/TS DTS 6857:2023(E)
Contents
Foreword . v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions (mandatory) . 1
4 Principle . 2
5 Significance and use. 2
6 Apparatus . 2
6.1 Microscope . 2
6.2 Calibrated rule or scale . 3
6.3 Image analysis software . 3
7 Test specimen . 3
7.1 Sampling . 3
7.2 Mounting . 3
7.3 Grinding and polishing . 3
8 Procedures. 4
8.1 Calibration . 4
8.2 Image acquisition . 4
8.3 Void area content . 4
8.3.1 Binarization . 4
8.3.2 Pixel counting . 5
8.3.3 Removal of smaller voids . 5
8.4 Fibre area content by simplified method . 6
8.4.1 Tow counting
...