ASTM D6744-2006
用防护热流量计技术测定阳极碳热传导率的标准试验方法

Standard Test Method for Determination of the Thermal Conductivity of Anode Carbons by the Guarded Heat Flow Meter Technique

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标准号

ASTM D6744-2006

发布日期

2006年

实施日期

废止日期

无

中国标准分类号

A29

国际标准分类号

17.200.20 (Temperature-measuring instruments)

发布单位

US-ASTM

适用范围

This test method is designed to measure and compare thermal properties of materials under controlled conditions and their ability to maintain required thermal conductance levels.

1.1 This test method covers a steady-state technique for the determination of the thermal conductivity of carbon materials in thicknesses of less than 25 mm. The test method is useful for homogeneous materials having a thermal conductivity in the approximate range 1 30 W/(mK), (thermal resistance in the range from 10 to 400 10⁴ m² K/W) over the approximate temperature range from 150 to 600 K. It can be used outside these ranges with reduced accuracy for thicker specimens and for thermal conductivity values up to 60 W/(mK).

Note 18212;It is not recommended to test graphite cathode materials using this test method. Graphites usually have a very low thermal resistance, and the interfaces between the sample to be tested and the instrument become more significant than the sample itself.

1.2 This test method is similar in concept to Test Methods E 1530 and C 518. Significant attention has been paid to ensure that the thermal resistance of contacting surfaces is minimized and reproducible.

1.3 The values stated in SI units are regarded as standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.