ISO 21819-1:2018

Fine ceramics (advanced ceramics, advanced technical ceramics) — Characteristic of piezoelectric properties under high-load conditions — Part 1: Resonant-antiresonant method under high-temperature conditions

This document specifies a method of measuring piezoelectric properties of piezoelectric fine ceramics and other piezoelectric devices under high-temperature conditions, where the electromechanical coupling coefficient is determined based on measurements of resonance/antiresonance frequencies using impedance analysers.

Céramiques techniques (céramiques avancées, céramiques techniques avancées) — Caractéristique des propriétés piézoélectriques en conditions de charge élevée — Partie 1: Méthode résonante-antirésonante à des températures élevées

General Information

• Status: Published
• Publication Date: 08-Aug-2018
• ICS: 81.060.30 - Advanced ceramics
• Technical Committee: ISO/TC 206 - Fine ceramics
• Drafting Committee: ISO/TC 206/WG 11 - Electrical and optical applications
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 04-Oct-2024

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 21819-1
First edition
2018-08
Fine ceramics (advanced ceramics,
advanced technical ceramics) —
Characteristic of piezoelectric
properties under high-load
conditions —
Part 1:
Resonant-antiresonant method under
high-temperature conditions
Céramiques techniques (céramiques avancées, céramiques techniques
avancées) — Caractéristique des propriétés piézoélectriques en
conditions de charge élevée —
Partie 1: Méthode résonante-antirésonante à des températures élevées
Reference number
©
ISO 2018
© ISO 2018
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]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 2
5 Principle . 2
6 Specimens . 2
7 Measurement equipment . 2
7.1 General . 2
7.2 Impedance analyser . 3
7.3 Thermostat chamber . 3
7.4 Thermocouple . 3
7.5 Recorder . 3
7.6 Test piece holder . 4
8 Measurement conditions . 4
9 Measurement procedure . 4
10 Calculation procedures of measured results . 5
10.1 Calculation of measurement data . 5
10.2 Rate of change of electromechanical coupling coefficient . . 5
11 Test report . 5
Annex A (informative) Example of a data evaluation . 7
Bibliography . 8
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 206, Fine ceramics.
A list of all parts in the ISO 21819 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2018 – All rights reserved

INTERNATIONAL STANDARD ISO 21819-1:2018(E)
Fine ceramics (advanced ceramics, advanced technical
ceramics) — Characteristic of piezoelectric properties
under high-load conditions —
Part 1:
Resonant-antiresonant method under high-temperature
conditions
1 Scope
This document specifies a method of measuring piezoelectric properties of piezoelectric fine ceramics
and other piezoelectric devices under high-temperature conditions, where the electromechanical
coupling coefficient is determined based on measurements of resonance/antiresonance frequencies
using impedance analysers.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60584-1, Thermocouples — Part 1: Reference tables
IEC 60584-2, Thermocouples — Part 2: Tolerances
EN 50324-1, Piezoelectric properties of ceramic materials and components — Part 1: Terms and definitions
EN 50324-2, Piezoelectric properties of ceramic materials and components — Part 2: Method of
measurement — Low power
EN 50324-3, Piezoelectric properties of ceramic materials and components — Part 3: Method of
measurement — High power
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 50324-1, EN 50324-2 and
EN 50324-3 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1
resonant-antiresonant method
method where the ratio of mutual conversion between electrical energy and mechanical energy is
measured based on the resonance frequency and antiresonance frequency of piezoelectric fine ceramics
and other piezoelectric devices
3.2
resonance frequency
f
r
lower of two frequencies at which admittance or impedance between electrodes of a transducer
achieves zero phase in the vicinity of the target vibration mode
3.3
antiresonance frequency
f
a
higher of two frequencies at which admittance or impedance between electrodes of a transducer
achieves zero phase in the vicinity of the target vibration mode
4 Symbols
Δk(t) Rate of change of electromechanical coupling coefficient (%)
k Electromechanical coupling coefficient after holding for t min after the test piece reaches
t
the test temperature ± 2 °C
k Electro
...

INTERNATIONAL ISO
STANDARD 21819-1
First edition
2018-08
Fine ceramics (advanced ceramics,
advanced technical ceramics) —
Characteristic of piezoelectric
properties under high-load
conditions —
Part 1:
Resonant-antiresonant method under
high-temperature conditions
Céramiques techniques (céramiques avancées, céramiques techniques
avancées) — Caractéristique des propriétés piézoélectriques en
conditions de charge élevée —
Partie 1: Méthode résonante-antirésonante à des températures élevées
Reference number
©
ISO 2018
© ISO 2018
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]
Fax: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii © ISO 2018 – All rights reserved

Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Symbols . 2
5 Principle . 2
6 Specimens . 2
7 Measurement equipment . 2
7.1 General . 2
7.2 Impedance analyser . 3
7.3 Thermostat chamber . 3
7.4 Thermocouple . 3
7.5 Recorder . 3
7.6 Test piece holder . 4
8 Measurement conditions . 4
9 Measurement procedure . 4
10 Calculation procedures of measured results . 5
10.1 Calculation of measurement data . 5
10.2 Rate of change of electromechanical coupling coefficient . . 5
11 Test report . 5
Annex A (informative) Example of a data evaluation . 7
Bibliography . 8
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/directives).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see www .iso
.org/iso/foreword .html.
This document was prepared by Technical Committee ISO/TC 206, Fine ceramics.
A list of all parts in the ISO 21819 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/members .html.
iv © ISO 2018 – All rights reserved

INTERNATIONAL STANDARD ISO 21819-1:2018(E)
Fine ceramics (advanced ceramics, advanced technical
ceramics) — Characteristic of piezoelectric properties
under high-load conditions —
Part 1:
Resonant-antiresonant method under high-temperature
conditions
1 Scope
This document specifies a method of measuring piezoelectric properties of piezoelectric fine ceramics
and other piezoelectric devices under high-temperature conditions, where the electromechanical
coupling coefficient is determined based on measurements of resonance/antiresonance frequencies
using impedance analysers.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
IEC 60584-1, Thermocouples — Part 1: Reference tables
IEC 60584-2, Thermocouples — Part 2: Tolerances
EN 50324-1, Piezoelectric properties of ceramic materials and components — Part 1: Terms and definitions
EN 50324-2, Piezoelectric properties of ceramic materials and components — Part 2: Method of
measurement — Low power
EN 50324-3, Piezoelectric properties of ceramic materials and components — Part 3: Method of
measurement — High power
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 50324-1, EN 50324-2 and
EN 50324-3 and the following apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https: //www .iso .org/obp
— IEC Electropedia: available at http: //www .electropedia .org/
3.1
resonant-antiresonant method
method where the ratio of mutual conversion between electrical energy and mechanical energy is
measured based on the resonance frequency and antiresonance frequency of piezoelectric fine ceramics
and other piezoelectric devices
3.2
resonance frequency
f
r
lower of two frequencies at which admittance or impedance between electrodes of a transducer
achieves zero phase in the vicinity of the target vibration mode
3.3
antiresonance frequency
f
a
higher of two frequencies at which admittance or impedance between electrodes of a transducer
achieves zero phase in the vicinity of the target vibration mode
4 Symbols
Δk(t) Rate of change of electromechanical coupling coefficient (%)
k Electromechanical coupling coefficient after holding for t min after the test piece reaches
t
the test temperature ± 2 °C
k Electro
...