ISO INTERNATIONAL STANDARD 22214 First edition 2006-02-01 Fine ceramics (advanced ceramics, advancedtechnicalceramics)Test method for cyclic bending fatigue of monolithic ceramics at room temperature CéramiquestechniquesMethoded'essai pourlafatiguedecourbure cycliquede ceramiquesmonolithiquesatemperatureambiante Referencenumber ISO 22214:2006(E) @ISO2006 ISO22214:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading this file, parties accept therein the responsibility of not infringing Adobe's licensing policy. The IsO Central Secretariat accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. @ISO2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, ISO's member body in the country of the requester. ISO copyright office Case postale 56:CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland ISO 22214:2006(E) Contents Page Foreword iv 1 Scope 2 Normative references .... 3 Terms and definitions 4 Testspecimens 5 Testing machine.. 6 Testing method 7 Treatment of test result. 8 Test report Bibliography ISO22214:2006(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies InternationalElectrotechnicalCommission(lEC)onallmattersofelectrotechnicalstandardization International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75% of the memberbodies castinga vote. 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. ISO22214waspreparedbyTechnicalCommitteeISO/TC206,Fineceramics ISO 22214:2006(E) INTERNATIONALSTANDARD Fine ceramics (advanced ceramics, advanced technical ceramics) Test method for cyclic bending fatigue of monolithic ceramics at room temperature Scope 1 This International Standard specifies a test method for four-point cyclic bending fatigue of fine ceramics that are carried out in the air at room temperature. This test may be used as a pass/fail test for material 2Normativereferences 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 document (including anyamendments)applies. Iso31-0:1992,Quantitiesandunits—Part0:Generalprinciples Iso14704:2000,Fine ceramics (advanced ceramics,advanced technical ceramics)-Test method for flexural strength ofmonolithic ceramics at roomtemperature IsO/lEC17025:2005,General requirementsforthecompetenceoftestingandcalibrationlaboratories 3Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 fatigue test test where repeated stress is applied to a test specimen, and the number of cycles to fracture is measured 3.2 fatigue failure fracture due to cyclic loading well below the strength under monotonic loading 3.3 suspending time time at which test is intentionally interrupted without fracture 3.4 four-poi