Re: copper-graphite connections

On Fri, 02 Sep 2005 10:48:52 +0100, Steve <Steve@xxxxxxxxxxxxxx>
wrote:

>Michael Gray wrote:
>
>> RS Components have what I was contemplating:
>>
>> Grease:
>> http://tinyurl.com/9wsba
>>
>> Epoxy:
>> http://tinyurl.com/7ufjj
>>
>> Paint:
>> http://tinyurl.com/8eqax
>
>The paint we have is from RS - never realised they did a grease too.
>Thanks for that. You don't think the grease will cause problems as it
>migrates into the graphite do you ? The graphite gets up to 100 degrees
>C or so in use.
:

The Data *** says, (in part):
"Remains stable in a wide temperature range; -57 to 252 C"

And I would judge that migration into the graphite would actually
enhance the conductivity, rather than reduce it, as the aliphatic
components of the grease would migrate preferentially into the
graphite, rather than the conductive silver suspension, leaving more
conductive silver colloid in the junction area.
Expect a slight odour, mind you, as the organic compounds degrade.

This is just an informed guess/judgement, mind you, never having used
the stuff in this situation before.
.