Looking to make a thermal conductivity measurement device. It would be nice if it could be used to measure contact resistance between two materials in addition to measuring the k value of a material.I rough schematic illustration of what I am thinking to do is attached.
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Thermal Conductivity Measurement Device
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I'd be surprised if there wasn't already out there instruments to measure both. Certainly one exists to measure thermal conductivity as I'm sure one or more of MintJulep's ASTM test methods will specify the device. As for thermal contact resistance, an ASTM test method may specify a device but I am less sure.
Tunalover
Tunalover
btrueblood
Mechanical
ASTM D 5470 – 06 Standard Test Method for Thermal Transmission Properties of Thermally Conductive Electrical Insulation Materials
Yes, there are instruments, although the second site seems to show a different measurement technique
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Compositepro
Chemical
Drawing a sketch of the instrument is the easy part. Actually constructing an instrument that works accurately is quite complex. I've considered it in the past and did not proceed.
EdStainless
Materials
I have used a few of these over the years.
Yet get different TC values depending on which measurement method you use.
This is because it is so difficult to account for all of the biases and errors.
Find a lab that does this for a living and pay them, at least then you will get consistency.
(calibration is a bitch)
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube
Yet get different TC values depending on which measurement method you use.
This is because it is so difficult to account for all of the biases and errors.
Find a lab that does this for a living and pay them, at least then you will get consistency.
(calibration is a bitch)
= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, Plymouth Tube
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