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1、DRAFT FOR DEVELOPMENT DD IEC TS 61994-4-2:2003 Piezoelectric and dielectric devices for frequency control and selection Glossary Part 4-2: Piezoelectric and dielectric materials Piezoelectric ceramics ICS 31.140 ? Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12
2、03:59:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DD IEC TS 61994-4-2:2003 This Draft for Development was published under the authority of the Standards Policy and Strategy Committee on 9 July 2004 BSI 9 July 2004 ISBN 0 580 44014 1 National foreword This Draft for Development reproduces verbatim
3、IEC TS 61994-4-2:2003. This publication is not to be regarded as a British Standard. It is being issued in the Draft for Development Series of publications and is of a provisional nature because the document is still under consideration in IEC and is likely to be produced as a full standard within t
4、hree years. It should be applied on this provisional basis, so that information and experience of its practical application may be obtained. Comments arising from the use of this Draft for Development are requested so that UK experience can be reported to the international organization responsible f
5、or the Technical Specification. A review of this publication will be initiated not later than 3 years after its publication by the international organization so that a decision can be taken on its status at the end of its 3-year life. Notification of the start of the review period will be made in an
6、 announcement in the appropriate issue of Update Standards. According to the replies received by the end of the review period, the responsible BSI Committee will decide whether to support the conversion into an international standard, to extend the life of the Technical Specification for another 3 y
7、ears or to withdraw it. Comments should be sent in writing to the Secretary of BSI Technical Committee EPL/49, Piezo-electric devices for frequency control and selection, at 389 Chiswick High Road, London W4 4AL, giving the document reference and clause number and proposing, where possible, an appro
8、priate revision of the text. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled
9、“International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. Summary of pages This document comprises a front cover, an inside front cover, the IEC TS title page, pages 2 to 6, an inside back cover and a back cover.
10、 The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. DateComments Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:59:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI SPCIFI
11、CATION TECHNIQUE CEI IEC TECHNICAL SPECIFICATION TS 61994-4-2 Premire dition First edition 2003-12 Dispositifs pizolectriques et dilectriques pour la commande et le choix de la frquence Glossaire Partie 4-2: Matriaux pizolectriques et dilectriques Cramiques pizolectriques Piezoelectric and dielectri
12、c devices for frequency control and selection Glossary Part 4-2: Piezoelectric and dielectric materials Piezoelectric ceramics Numro de rfrence Reference number CEI/IEC/TS 61994-4-2:2003 DD IEC TS 6199442:2003 Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:5
13、9:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI TS 91649-4-2 IE:C2003 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ PIEZOELECTRIC AND DIELECTRIC DEVICES FOR FREQUENCY CONTROL AND SELECTION GLOSSARY Part 4-2: Piezoelectric and dielectric materials Piezoelectric ceramics FOREWORD 1) The International
14、Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fie
15、lds. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IE
16、C National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non- governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardiza
17、tion (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has represen
18、tation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC ca
19、nnot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publicati
20、ons. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC
21、 Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury
22、, property damage or other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cit
23、ed in this publication. Use of the referenced publications is indispensable for the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifyi
24、ng any or all such patent rights. The main task of IEC technical committees is to prepare International Standards. In exceptional circumstances, a technical committee may propose the publication of a technical specification when the required support cannot be obtained for the publication of an Inter
25、national Standard, despite repeated efforts, or the subject is still under technical development or where, for any other reason, there is the future but no immediate possibility of an agreement on an International Standard. Technical specifications are subject to review within three years of publica
26、tion to decide whether they can be transformed into International Standards. DD IEC TS 6199442:2003 2 Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:59:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI TS 91649-4-2 IE:C2003 5 IEC 61994-4-2, which is a technical
27、specification, has been prepared by IEC technical committee 49: Piezoelectric and dielectric devices for frequency control and selection. The text of this technical specification is based on the following documents: Enquiry draft Report on voting 49/574/DTS 49/614/RVC Full information on the voting
28、for the approval of this technical specification can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with ISO/IEC Directives, Part 2. IEC 61994 consists of the following parts under the general title Piezoelectric and dielectric devices
29、for frequency control and selection: Part 1: Piezoelectric and dielectric resonators; Part 2: Piezoelectric and dielectric filters; Part 3: Piezoelectric and dielectric oscillators1; Part 4-1: Piezoelectric and dielectric materials Synthetic quartz cristal; Part 4-2: Piezoelectric and dielectric mat
30、erials Piezoelectric ceramics; Part 4-3: Piezoelectric and dielectric materials Materials for dielectric devices1; Part 4-4: Piezoelectric and dielectric materials Materials for SAW devices1. The committee has decided that the contents of this publication will remain unchanged until 2006. At this da
31、te, the publication will be reconfirmed; withdrawn; replaced by a revised edition, or amended. 1 Under consideration. DD IEC TS 6199442:2003 3 Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:59:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI TS 91649-4-2 IE:C20
32、03 7 PIEZOELECTRIC AND DIELECTRIC DEVICES FOR FREQUENCY CONTROL AND SELECTION GLOSSARY Part 4-2: Piezoelectric and dielectric materials Piezoelectric ceramics 1 Scope This part of IEC 61994 specifies the terms and definitions for piezoelectric ceramics representing the present state-of-the-art, whic
33、h are intended for use in the standards and documents of IEC TC 49. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced doc
34、ument (including any amendments) applies. IEC 60050(121): 1998, International Electrotechnical Vocabulary (IEV) Chapter 121: Electromagnetism IEC 60050(151): 2001, International Electrotechnical Vocabulary (IEV) Chapter 151: Electrical and magnetic devices 3 Terms and definitions For the purposes of
35、 this document, the following terms and defintions apply. 3.1 ageing irreversible changes with time in the properties of the material 3.2 bulk acoustic wave elastic wave propagating in solid material such as piezoelectric ceramics 3.3 ceramics shaped and fired inorganic materials consisting essentia
36、lly of crystalline refractory substances NOTE The refractory substances may be, for example of the perovskite type such as barium titanate. 3.4 coupling coefficient ratio of the applied electric energy to the resulting mechanical energy in piezoelectric material DD IEC TS 6199442:2003 4 Licensed Cop
37、y: London South Bank University, London South Bank University, Tue Dec 12 03:59:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI TS 91649-4-2 IE:C2003 9 3.5 Curie temperature temperature at which a ferroelectric material undergoes a structural phase transition to a state where a spontaneous polarizatio
38、n vanishes 3.6 expansion vibration vibration mode of a disc or plate where the displacement is in the plane surface 3.7 ferroelectric material material that exhibits, over some range of temperature, a spontaneous electric polarization that can be reversed or reoriented by application of an electric
39、field 3.8 flexural vibration for a resonator shaped as a thin narrow bar, displacements appearing in a direction perpendicular to the length of the bar 3.9 frequency constant product of the resonance frequency and the vibrating piece dimension which determines the resonance frequency. NOTE For funda
40、mental mode the frequency constant equals to the velocity of an acoustic wave. 3.10 insulation resistance resistance under specified conditions between two conductive elements separated by insulating materials IEV 151-15-43 3.11 length vibration for a resonator shaped as a thin and narrow bar, the d
41、ominant deformation which appears only along the longitudinal axis 3.12 (absolute) permittivity scalar or tensor quantity the product of which by the electric field strength E in a medium is equal to the electric flux density D: ED= NOTE For an isotropic medium the permittivity is a scalar quantity;
42、 for an anisotropic medium it is a tensor quantity. IEV 121-12-12 3.13 electric polarization P at a given point within a domain of quasi-infinitesimal volume V, vector quantity equal to the electric dipole moment p of the substance contained within the domain divided by the volume, V V p P = DD IEC
43、TS 6199442:2003 5 Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:59:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI TS 91649-4-2 CEI:0230 11 NOTE The electric polarization P satisfies the relation PED+= 0 where D is the electric flux density; E is the electric
44、 field strength and 0 is the electric constant. IEV 121-11-37 3.14 poling process by which a DC electric field exceeding the coercive field is applied to a multi-domain ferroelectric to produce a net remanent polarization 3.15 remanent polarization polarization electric that remains after an applied
45、 electric field is removed 3.16 spontaneous polarization electric polarization within a single ferroelectric domain 3.17 piezoelectric effect phenomenon in which electric polarization produces a mechanical deformation which depends linearly on the electric field strength, and conversely a deformatio
46、n produces an electric polarization IEV 121-12-86, modified 3.18 trapped vibration mode the vibration mode the wave energy of which is trapped in the electrode region on the piezoelectric ceramic resonator shaped as a thin plate and vibrating in a thickness mode _ DD IEC TS 6199442:2003 6 Licensed C
47、opy: London South Bank University, London South Bank University, Tue Dec 12 03:59:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI blank Licensed Copy: London South Bank University, London South Bank University, Tue Dec 12 03:59:56 GMT+00:00 2006, Uncontrolled Copy, (c) BSI DD IEC TS 61994-4-2:2003 BSI
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