Thermal Conductivity - ASTM E1530 vs ASTM C177?

Question

Thermal Conductivity - ASTM E1530 vs ASTM C177?

jabberwock (Chemical)

(OP)

19 Feb 09 19:10

Tested the thermal conductivity of a material using ASTM E1530 and the values obtained are quite different (almost factor of 10) from published values obtained via ASTM C177. Is this discrepancy between the two methods reasonable/typical???

EdStainless (Materials) · Answer 1 · 2009-02-20 09:01:17

I often see TCs with a range of a factor of three from common well established materials. The test method means everything with TC. Find more published data and re-do your tests.

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jabberwock (Chemical) · Answer 2 · 2009-02-20 09:08:07

Thanks EdStainless. Do you have any experience in deciding which test method to use? Any guidance you might provide is appreciated.

bobbywvu (Materials) · Answer 3 · 2009-04-22 10:40:10

ASTM C177 is an easy way to achieve thermal conductivity where ASTM E 1530 is little stringent. I have results of thermal conductivity of composites using both the methods and they are very much similar.

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Thermal Conductivity - ASTM E1530 vs ASTM C177?