29.050 导体材料 标准查询与下载

EN 61788-19:2014 超导性 第19部分：机械性能测量 反应后的 Nb3Sn 复合超导体的室温拉伸试验

IEC 61788-19:2013 covers a test method detailing the tensile test procedures to be carried out on reacted Cu/Nb3Sn composite superconducting wires at room temperature. The object of this test is to measure the modulus of elasticity and to determine the proof strength of the composite due to yielding of the copper and the copper tin components from the stress versus strain curve. Furthermore, the elastic limit, the tensile strength, and the elongation after fracture can be determined by means of the present method, but they are treated as optional quantities because the measured quantities of the elastic limit and the elongation after fracture have been reported to be subject to significant uncertainties according to the international round robin test. The sample covered by this test procedure should have a bare round or rectangular cross-section with an area between 0,15 mm2 and 2,0 mm2 and a copper to non-copper volume ratio of 0,2 to 1,5 and should have no insulation. Key words: supraconductivity, mechanical properties

Superconductivity - Part 19: Mechanical properties measurement - Room temperature tensile test of reacted Nb3Sn composite superconductors

LST EN 61788-12-2014 超导性. 第12部分: 超导体基体的体积比测量. Nb3Sn复合超导导线的铜与非铜的体积比(IEC 61788-12-2013)

Superconductivity -- Part 12: Matrix to superconductor volume ratio measurement - Copper to non-copper volume ratio of Nb3Sn composite superconducting wires (IEC 61788-12:2013)

BS EN 61788-18:2014 超导性. 机械性能测量. 银和/或银合金护套Bi-2223和Bi-2212复合超导体的室温拉伸试验

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

BS EN 61788-18:2013 超导性. 机械性能测量. Ag和/或Ag合金护套Bi-2223和Bi-2212复合超导体的室温拉伸试验

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

EN 61788-18:2013 超导性 第18部分：机械性能测量 Ag 和/或 Ag 合金包覆的 Bi-2223 和 Bi-2212 复合超导体的室温拉伸试验

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 mm2 to 2,0 mm2 (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

Superconductivity - Part 18: Mechanical properties measurement - Room temperature tensile test of Ag- and/or Ag alloy-sheathed Bi-2223 and Bi-2212 composite superconductors

DIN EN 61788-16:2013 超导性 第16部分 电气特性测量值 微波频率下超导体的功率依赖表面电阻(IEC 61788-16-2013) 德文版本EN 61788-16-2013

Superconductivity - Part 16: Electronic characteristic measurements - Power-dependent surface resistance of superconductors at microwave frequencies (IEC 61788-16:2013); German version EN 61788-16:2013

DIN EN 61788-17:2013 超导性 第17部分 电气特性测量值 大面积超导薄膜的局部临界电流密度及其分布(IEC 61788-17-2013) 德文版本EN 61788-17-2013

Superconductivity - Part 17: Electronic characteristic measurements - Local critical current density and its distribution in large-area superconducting films (IEC 61788-17:2013); German version EN 61788-17:2013

BS EN 61788-12:2013 超导性.超导体体积比测量矩阵.铜与Nb3Sn复合超导导线的非铜体积比

Superconductivity. Matrix to superconductor volume ratio measurement. Copper to non-copper volume ratio of Nb3Sn composite superconducting wires

DS/EN 61788-12:2013 超导性 第12部分：基质与超导体体积比测量 Nb3Sn 复合超导线材的铜与非铜体积比

IEC 61788-12:2013 describes a test method for determining the copper to non-copper volume ratio of Cu/Nb3Sn wires. The test method given hereunder is applicable to Nb3Sn composite superconducting wires with a cross-sectional area of 0,1 mm2 to 3,0 mm2 and

Superconductivity - Part 12: Matrix to superconductor volume ratio measurement - Copper to non-copper volume ratio of Nb3Sn composite superconducting wires

EN 61788-12:2013 超导性 第12部分：基质与超导体体积比测量 Nb3Sn 复合超导线材的铜与非铜体积比

IEC 61788-12:2013 describes a test method for determining the copper to non-copper volume ratio of Cu/Nb3Sn wires. The test method given hereunder is applicable to Nb3Sn composite superconducting wires with a cross-sectional area of 0,1 mm2 to 3,0 mm2 and a copper to non-copper volume ratio of 0,1 or more. It does not make any reference to the filament diameter; however, it is not applicable to those superconducting wires with their filament, Sn, Cu-Sn alloy, barrier material and other non-copper portions dispersed in the copper matrix or those with the stabilizer dispersed. Furthermore, the copper to non-copper volume ratio can be determined on specimens before or after the Nb3Sn formation heat treatment process. The Cu/Nb3Sn wire has a monolithic structure with a round or rectangular cross-section. Though uncertainty increases, this method may be applicable to the measurement of the copper to non-copper volume ratio of the Cu/Nb3Sn wires whose cross-section and copper to non-copper volume ratio fall outside the specified ranges. This test method may be applied to other composite superconducting wires after some appropriate modifications. This second edition cancels and replaces the first edition published in 2002. It constitutes a technical revision. The main revision is the addition of two new annexes, 'Uncertainty considerations' and 'Uncertainty evaluation in the test method of the copper to non-copper volume ratio of Nb3Sn composite superconducting wires'.

Superconductivity - Part 12: Matrix to superconductor volume ratio measurement - Copper to non-copper volume ratio of Nb3Sn composite superconducting wires

BS EN 61788-5:2013 超导性.超导体体积比率测量矩阵.铜与Cu/Nb-Ti复合超导体的超导体体积比率

Superconductivity. Matrix to superconductor volume ratio measurement. Copper to superconductor volume ratio of Cu/Nb-Ti composite superconducting wires

IEC 61788-18:2013 超导性.第18部分:机械特性测量.银和/或银合金护套的铋-2223和铋-2212复合超导体的室温拉伸试验

This International Standard 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 (see Clauses A.4@ A.5@ A.6 and A.10). The sample covered by this test procedure should have a round or rectangular cross-section with an area of 0@3 mm2 to 2@0 mm2 (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).

Superconductivity - Part 18: Mechanical properties measurement - Room temperature tensile test of Ag- and/or Ag alloy-sheathed Bi-2223 and Bi-2212 composite superconductors

DS/EN 61788-8:2013 超导性 第8部分：AC 损耗测量 通过拾取线圈法测量暴露在液氦温度下横向交变磁场中的圆形超导线的总 AC 损耗

IEC 61788-8:2010(E) specifies the measurement method of total AC losses by the pickup coil method in composite superconducting wires exposed to a transverse alternating magnetic field. The losses may contain hysteresis, coupling and eddy current losses. T

Superconductivity - Part 8: AC loss measurements - Total AC loss measurement of round superconducting wires exposed to a transverse alternating magnetic field at liquid helium temperature by a pickup coil method

IEC 61788-12:2013 超导性. 第12部分: 超导体基体的体积比测量. Nb3Sn复合超导导线的铜与非铜的体积比

This part of IEC 61788 describes a test method for determining the copper to non-copper volume ratio of Cu/NbSn wires.

Superconductivity.Part 12: Matrix to superconductor volume ratio measurement.Copper to non-copper volume ratio of Nb₃Sn composite superconducting wires

DS/EN 61788-17:2013 超导性 第17部分：电子特性测量 局部临界电流密度及其在大面积超导薄膜中的分布

IEC 61788-17:2013 describes the measurements of the local critical current density (Jc) and its distribution in large-area high-temperature superconducting (HTS) films by an inductive method using third-harmonic voltages. The most important consideration

Superconductivity - Part 17: Electronic characteristic measurements - Local critical current density and its distribution in large-area superconducting films

DS/EN 61788-16:2013 超导性 第16部分：电子特性测量 微波频率下超导体的功率相关表面电阻

IEC 61788-16:2013 involves describing the standard measurement method of power-dependent surface resistance of superconductors at microwave frequencies by the sapphire resonator method. The measuring item is the power dependence of Rs at the resonant freq

Superconductivity - Part 16: Electronic characteristic measurements - Power-dependent surface resistance of superconductors at microwave frequencies

BS EN 61788-16:2013 超导性. 电子特性测量. 微波频率下超导体的动力表面电阻

Superconductivity. Electronic characteristic measurements. Power-dependent surface resistance of superconductors at microwave frequencies

BS EN 61788-17:2013 超导性 电气特性测量值 大面积超导薄膜的局部临界电流密度及其分布

Superconductivity. Electronic characteristic measurements. Local critical current density and its distribution in large-area superconducting films

YB/T 4338-2013 矿热炉用高石墨质炭电极

本标准规定了矿热炉用高石墨质炭电极的外形尺寸及允许偏差、技术要求、试验方法、检验规则、包装、标志、储存、运输和质量证明书。本标准适用于以石油焦和石墨质炭材料为主要原料,经成型、焙烧和机械加工而制成,供金属硅、电石、铁合金、黄磷、刚玉等矿热炉作导电材料的高石墨质炭电极。

High graphite content carbon electrode for submerged arc furnace

DS/EN 61788-13:2013 超导性 第13部分：交流损耗测量 超导复丝复合材料中磁滞损耗的磁力计方法

IEC 61788-13:2012 describes considerations for the measurement of hysteretic loss in Cu/Nb-Ti multifilamentary composites using DC- or low-ramp-rate magnetometry. This international standard specifies a method of the measurement of hysteretic loss in mult

Superconductivity - Part 13: AC loss measurements - Magnetometer methods for hysteresis loss in superconducting multifilamentary composites