Thermal conductivity (ceramics)

Jan 02, 2013 71 Replies

(the security people there would only put a lock on

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Hmm, if we could just brick you into the lab with no door it'd be totally secure.

Of course anything nuclear is very scary. We shipped our proton NMR spectrometer over to Canada for a trade show. Someone spelled out nuclear magnetic resonance and we had all sorts of problems.

George H.

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I carry around a NUCLEAR POWERED LIGHT SOURCE on my key ring.

John Larkin Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

d

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Grin, of course unless it's on a gun site it's illegal in the US.

George H.

If you run the numbers, it's something like 4x better than copper in lateral spreading, but more than 4x more expensive by volume, so you save absolutely no cost in using it. Plus the copper is solderable. It is thinner, but any application where you don't have 0.3 mm to spare needs a serious thermal redesign, regardless.

Tim

Deep Friar: a very philosophical monk. Website: http://seventransistorlabs.com

A thin sheet of this stuff won't be a very good spreader. The inner area of a chip thermal pad will be shadowed laterally by the rim *and* insulated vertically from the heat sink below by the bad Z conductivity. Just outside of the chip, the carbon junk would have to be clamped to the heat sink from above, to make thermal contact. A block of copper seems like a much better idea.

I think I'll buy some and play with magnets.

John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators

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That was suggested.

Nuclear. This was IBM in the '70s. The most dangerous things we had behind the door were a few wire wrap guns.

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Oh, NO! WMDs are legal! We'll have to get Larkin's Senator on that, right away!

Would one be permitted a mirror and a table?

penultimate

use.)

I think that there are forms of boron nitride that beat it.

?-)

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Yeah, you have to buy them on ebay and have them shipped in from the UK or China. At which point it would be a crime to ship any back.

John Larkin Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

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I hope those weren't fully automatic.

John Larkin Highland Technology, Inc jlarkin at highlandtechnology dot com http://www.highlandtechnology.com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom laser drivers and controllers Photonics and fiberoptic TTL data links VME thermocouple, LVDT, synchro acquisition and simulation

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Nope, not even stripper clips. The were even muzzle loaders.

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