• BS EN 61788-18:2013

    Current The latest, up-to-date edition.

    Superconductivity Mechanical properties measurement. Room temperature tensile test of Ag- and/or Ag alloy-sheathed Bi-2223 and Bi-2212 composite superconductors

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  31-01-2014

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Principle
    5 Apparatus
    6 Specimen preparation
    7 Testing conditions
    8 Calculation of results
    9 Uncertainty of measurement
    10 Test report
    Annex A (informative) - Additional information
            relating to Clauses 1 to 14
    Annex B (informative) - Uncertainty considerations
    Annex C (informative) - Specific examples related
            to evaluation of uncertainties for
            Ag/Bi-2223 and Ag/Bi-2212 wires
    Bibliography
    Annex ZA (normative) - Normative references to
             international publications with their
             corresponding European publications

    Abstract - (Show below) - (Hide below)

    Describes a test method detailing the tensile test procedures to be carried out on Ag/Bi-2223 and Ag/Bi-2212 superconductive composite wires at room temperature.

    Scope - (Show below) - (Hide below)

    IEC 61788-18:2013 specifies a test method detailing the tensile test procedures to be carried out on Ag/Bi-2223 and Ag/Bi-2212 superconductive composite wires at room temperature. This test is used to measure the modulus of elasticity and to determine the 0,2 % proof strength. When the 0,2 % proof strength could not be determined due to earlier failure, the stress level at apparent strains of 0,05 %, 0,1 %, 0,15 %, 0,2 %, 0,25 % with increment of 0,05 % is measured. The values for elastic limit, fracture strength, percentage elongation after fracture and the fitted type of 0,2 % proof strength serve only as a reference. The sample covered by this test procedure should have a round or rectangular cross-section with an area of 0,3 mm 2 to 2,0 mm 2 (corresponding to the tape-shaped wires with width of 2,0 mm to 5,0 mm and thickness of 0,16 mm to 0,4 mm). Key words: superconductivity, mechanical properties measurement

    General Product Information - (Show below) - (Hide below)

    Committee W/-
    Document Type Standard
    Publisher British Standards Institution
    Status Current

    Standards Referencing This Book - (Show below) - (Hide below)

    EN ISO 376:2011 Metallic materials - Calibration of force-proving instruments used for the verification of uniaxial testing machines (ISO 376:2011)
    EN ISO 6892-1:2016 Metallic materials - Tensile testing - Part 1: Method of test at room temperature (ISO 6892-1:2016)
    ISO 6892-1:2016 Metallic materials Tensile testing Part 1: Method of test at room temperature
    IEC 61788-6:2011 Superconductivity - Part 6: Mechanical properties measurement - Room temperature tensile test of Cu/Nb-Ti composite superconductors
    ASTM E 83 : 2016 : REDLINE Standard Practice for Verification and Classification of Extensometer Systems
    ISO 9513:2012 Metallic materials — Calibration of extensometer systems used in uniaxial testing
    ISO/IEC Guide 99:2007 International vocabulary of metrology Basic and general concepts and associated terms (VIM)
    ISO 376:2011 Metallic materials — Calibration of force-proving instruments used for the verification of uniaxial testing machines
    ISO 3611:2010 Geometrical product specifications (GPS) — Dimensional measuring equipment: Micrometers for external measurements — Design and metrological characteristics
    EN ISO 9513:2012/AC:2013 Metallic materials - Calibration of extensometer systems used in uniaxial testing - Technical Corrigendum 1 (ISO 9513:2012/Cor 1:2013)
    ASTM E 111 : 2017 : REDLINE Standard Test Method for Young’s Modulus, Tangent Modulus, and Chord Modulus
    ISO 7500-1:2015 Metallic materials Calibration and verification of static uniaxial testing machines Part 1: Tension/compression testing machines Calibration and verification of the force-measuring system
    ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
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