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    BS ISO 17162-2014 Fine ceramics (advanced ceramics advanced technical ceramics) Mechanical properties of monolithic ceramics at room temperature Determination of compressive streng.pdf

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    BS ISO 17162-2014 Fine ceramics (advanced ceramics advanced technical ceramics) Mechanical properties of monolithic ceramics at room temperature Determination of compressive streng.pdf

    1、BSI Standards PublicationBS ISO 17162:2014Fine ceramics (advancedceramics, advanced technicalceramics) Mechanicalproperties of monolithicceramics at room temperature Determination ofcompressive strengthCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy

    2、 Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 17162:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of ISO 17162:2014.The UK participation in its preparation was entrusted to TechnicalCommittee RPI/13, Advanced technic

    3、al ceramics.A list of organizations represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. The British Standards Institution 2014. Published by

    4、BSI StandardsLimited 2014ISBN 978 0 580 81683 3ICS 81.060.30Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 31 March 2014.Amendments issued since publicationDate T

    5、ext affectedCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 17162:2014 ISO 2014Fine ceramics (advanced ceramics, advanced technical ceramics) Mechanical proper

    6、ties of monolithic ceramics at room temperature Determination of compressive strengthCramiques techniques Proprits mcaniques des cramiques monolithiques temprature ambiante Dtermination de la rsistance en compressionINTERNATIONAL STANDARDISO17162First edition2014-03-15Reference numberISO 17162:2014(

    7、E)Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 17162:2014ISO 17162:2014(E)ii ISO 2014 All rights reservedCOPYRIGHT PROTECTED DOCUMENT ISO 2014All rights res

    8、erved. Unless otherwise specified, 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 I

    9、SO at the address below or ISOs member body in the country of the requester.ISO copyright officeCase postale 56 CH-1211 Geneva 20Tel. + 41 22 749 01 11Fax + 41 22 749 09 47E-mail copyrightiso.orgWeb www.iso.orgPublished in SwitzerlandCopyright British Standards Institution Provided by IHS under lice

    10、nse with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 17162:2014ISO 17162:2014(E) ISO 2014 All rights reserved iiiContents PageForeword iv1 Scope . 12 Normative references 13 Terms and definitions . 14 Significance and use 15 Appar

    11、atus . 25.1 Test machine . 25.2 Test jig . 25.3 Length measuring equipment 56 Test pieces . 56.1 Dimensions and tolerances 56.2 Surface finish 56.3 Number of test pieces . 77 Procedure. 78 Calculations 89 Test report . 8Copyright British Standards Institution Provided by IHS under license with BSI -

    12、 Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 17162:2014ISO 17162:2014(E)ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing I

    13、nternational 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

    14、 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 Directi

    15、ves, 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

    16、 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 declarat

    17、ions 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 on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information abou

    18、t ISOs adherence to the WTO principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationThe committee responsible for this document is ISO/TC 206, Fine ceramics.iv ISO 2014 All rights reservedCopyright British Standards Institution Provided by IHS u

    19、nder license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 17162:2014INTERNATIONAL STANDARD ISO 17162:2014(E)Fine ceramics (advanced ceramics, advanced technical ceramics) Mechanical properties of monolithic ceramics at room te

    20、mperature Determination of compressive strength1 ScopeThis International Standard specifies a method for the determination of nominal compressive strength of advanced monolithic technical ceramic materials at room temperature.2 Normative referencesThe following documents, in whole or in part, are no

    21、rmatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 3611, Geometrical product specifications (GPS) Dimension

    22、al measuring equipment: Micrometers for external measurements Design and metrological characteristicsISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibration of the force-measuring systemISO/IEC 17025, G

    23、eneral requirements for the competence of testing and calibration laboratoriesEN 623-4, Advanced technical ceramics Monolithic ceramics General and textural properties Part 4: Surface roughnessEN 843-5, Advanced technical ceramics Mechanical properties of monolithic ceramics at room temperature Part

    24、 5: Statistical analysis3 Terms and definitionsFor the purposes of this document, the following terms and definitions apply.3.1nominal compressive strengthc,mmaximum nominal stress supported by the material at the instant of failure when loaded in linear elastic compression4 Significance and useAdva

    25、nced technical ceramics are used for applications in which their corrosion resistance, their high temperature stability, their potential for light-weight constructions, and their high nominal compressive strength can be utilized in an ideal manner. For application of ceramic components, it shall be

    26、considered that they are loaded mainly with compressive stresses since this type of loading is considerably less critical than probably appearing tensile stresses.This International Standard describes the background for a directed material development, quality control, and for component-optimised ap

    27、plications. It ensures the determination of comparable nominal compressive strength data. ISO 2014 All rights reserved 1Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-

    28、,-BS ISO 17162:2014ISO 17162:2014(E)The result obtained from a compression strength test is determined by a large number of factors associated with the microstructure of the material, the surface finishing procedure applied for the preparation of the test pieces, the size and shape of the test piece

    29、, the rate of load application, and the relative humidity of the ambient atmosphere. Furthermore, the result obtained from a strength test is influenced by possible existing misfit of ram and test piece cross section as well as of elastic constants. These factors are minimized by a sophisticated tes

    30、t assembly in ASTM C 1424-04 1. With respect to an applicable and reproducible procedure of the measurement, it is consciously abstained from the adoption of this test assembly. The test assembly defined in this International Standard represents an alternative to the above mentioned ASTM C 1424-04 1

    31、 that is approved and feasible in industrial practice.As a consequence of the brittle nature of ceramics, there is usually a considerably range of results obtained from a number of nominal identical test pieces. The factors (mentioned above) combined mean that caution in the interpretation of test r

    32、esults is required. For many purposes, and as described in this International Standard, the results of strength test can be described in terms of a mean value and a standard deviation. Further statistical evaluation of results is required for design data acquisition, and can be desirable for other p

    33、urposes (see EN 843-5).This method places closely defined restrictions on the size and shape of the test pieces and on the function of the test apparatus in order to minimize the errors that can arise as a consequence of the test method.5 Apparatus5.1 Test machineA test machine shall be used that co

    34、nforms to the safety requirements defined in ISO 7500-1 and ISO 7500-1 Amendment 1. The test jig shall be surrounded by an adequate shatter protection device.The test machine shall be capable of applying the force at a constant loading or displacement rate. The machine shall be equipped to continuou

    35、sly record the force applied to the test piece including the maximum force applied to the test piece. The accuracy of the test machine shall be in accordance with ISO 7500-1, grade 1.5.2 Test jigThe test jig shall be capable to perform compression tests and ensure to meet the requirements described

    36、below.In Figure 1 an example of a test jig is shown and in Figure 2 a schematic representation of the test jig including a compression platen with calotte for self-alignment.2 ISO 2014 All rights reservedCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Co

    37、py Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 17162:2014ISO 17162:2014(E)Figure 1 Example of a test jig ISO 2014 All rights reserved 3Copyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo rep

    38、roduction or networking permitted without license from IHS-,-,-BS ISO 17162:2014ISO 17162:2014(E)1234351Key1 load ram2 compression platen3 loading block4 compressive test piece5 compression platen with calotteFigure 2 Schematic representation of the test jig including a compression platen with calot

    39、te for self-alignmentThe two compression platens shall be aligned axially to the load line of the test machine. The loading surfaces of the upper and lower compression platens shall be parallel to each other within 0,01 mm per 10 mm and perpendicular to the load line of the test machine.For a better

    40、 alignment, one of the compression platens should have a calotte for self-alignment.Hardness and Youngs modulus of the loading blocks and compression platens shall be larger than or equal to the hardness and Youngs modulus (400 GPa, e.g. silicon carbide or cemented carbide) of the test piece.Loading

    41、 blocks positioned between compression platens and the test piece as shown in Figures 1 and 2 shall be used to minimize mismatches between compression platens and test piece and to protect the compression platens against damage. Loading blocks could be made from the same material as the test pieces.

    42、The surface of the compression platen that is in contact with the loading block shall be larger than the surface of the loading block that is in contact with the compression platen. The cross section of the contact surface of the loading blocks shall be at least five times greater than the cross sec

    43、tions of the contact surfaces (end faces) of the test piece. The loading blocks shall have a thickness large enough to resist the test without fracture and shall be used only once.The compression platens shall be checked for damage after each compression test. Damaged compression platens shall be re

    44、placed or refinished to remove the volume damaged.4 ISO 2014 All rights reservedCopyright British Standards Institution Provided by IHS under license with BSI - Uncontrolled Copy Not for ResaleNo reproduction or networking permitted without license from IHS-,-,-BS ISO 17162:2014ISO 17162:2014(E)The

    45、lower loading block shall be placed centred on the lower compression platen and the test piece shall be placed centred on the lower loading block. Subsequently, the upper loading block shall be placed centred on the upper end face of the test piece and the upper compression platen shall be moved tow

    46、ards the upper loading block until force closure. Optical markers or other suitable devices shall be used for central alignment of test piece and loading blocks.5.3 Length measuring equipmentA micrometer conforming to ISO 3611 and with a resolution 0,1 % of the dimension to be measured, or an altern

    47、ative calibrated device measuring to this resolution, shall be used for the measurement of test piece dimensions.6 Test pieces6.1 Dimensions and tolerancesA test piece with a square cross section with side lengths of (4 0,1) mm or with a cylindrical cross section with a diameter of (4,5 0,1) mm shal

    48、l be used. The test piece shall have a height of (8 0,2) mm with end faces parallel to 0,2 % relative to the side length or the diameter of the test piece. The long edges of the squared test piece shall be chamfered at approximately 45 to a width of (0,25 0,05) mm.Other shapes or dimensions of test pieces can be used according to agreement between the parties and shall be stated in the test report.6.2 Surface finish6.2.1 GeneralThis International Standard permits any relevant surface finish described in t


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