[volt-nuts] PCBs with ceramic substrates

Tom Miller tmiller11147 at verizon.net
Wed Apr 12 17:14:59 EDT 2017

Ceramic plates are even used in armor to stop armor piercing projectiles.

Lots of applications.

----- Original Message ----- 
From: "Chuck Harris" <cfharris at erols.com>
To: "Discussion of precise voltage measurement" <volt-nuts at febo.com>
Sent: Wednesday, April 12, 2017 5:04 PM
Subject: Re: [volt-nuts] PCBs with ceramic substrates

> Simple, ceramic is a generic term, like car.
> And, ceramic substrates are available in all manner
> of different thicknesses, densities, and materials.
> Like every other engineering material, you decide what
> characteristics are important to you, and you pick the
> appropriate material that meets those characteristics.
> If you work outside of the envelope of that material's
> capabilities, the results will be disappointing.
> You were opining that ceramic was too brittle, and
> breakable and shouldn't be used for metrology work, I
> disagreed, and attempted to enlighten you with tales of
> some ceramics that you would be hard pressed to break,
> even with repeated blows from a hammer.
> I could tell you of transparent ceramics that are
> amazingly hard, and strong.
> I could go further and tell of other ceramics where you
> can crumble brick sized blocks with light finger pressure.
> And I could tell you of still other ceramics that you can
> heat white hot with a torch, and then in a fraction of a
> second, press the glowing section against your arm without
> it even feeling warm.
> Which could lead some to say: ceramics are cool!
> But as they say, you can lead a horse to water, but you
> cannot make him drink.
> -Chuck Harris
> cheater00 cheater00 wrote:
>> What can account for this difference between your and my experience
>> and what Chuck said?
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