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From: John Robertson <jrr@flippers.com>
Newsgroups: sci.electronics.repair
Subject: Re: Glass tubes vs tin whiskers
Date: Sat, 6 Jul 2024 16:10:43 -0700
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On 2024/07/05 9:29 p.m., vjp2.at@at.BioStrategist.dot.dot.com wrote:
>     Unlike lead, tin solder grows dendrites or whiskers which can short
> circuit.  Same principle as concrete stalagtites growing beneath concrete
> overpasses.  Some of the problems with battery fires are also caused by
> lithium dendrites.  Speculation is that major space and car disasters where
> caused by tin whiskers.  Makes me wonder, at least for very critical
> components (eg space or mil), maybe they should be put in glass vaccuum or
> argon tubes.  Anyone know more?
> 
> 

Good question.

NASA doesn't know (as of 2019) what causes tin whiskers...

Could some sort of medium keep whiskers from growing?

https://nepp.nasa.gov/WHISKER/background/index.htm

John :-#)#
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