[JMS] Grinding crystals? Is an acid etch possible?

[Don Buska]

I remember as a teen trying out different objects in my bowl of PCB 
etching solution. I discovered that aluminum was very reactive! Hi Hi. 
Oh those stupid No Fear days of mine ....... God must truly be watching 
over me as I still have both eyes and all my fingers....

73

Don N9OO



Joe Rubin wrote:
> Maybe the quartz blank is not uniform in crystalline structure. (more 
> pororous in microscopic spots than others0. We need to forward this 
> inquiry to the James Millen National Laboratory for Atomic Crystalline 
> Structures or maybe a "cut and try" method. Be extremely careful when 
> using these acids as some materials will act violently to immersion in 
> acid. I can absolutely assure you that what I say is true even though 
> I have no expertise in this field ! 73 Joe W4CBJ
>
>
>> From: "Sherrill Watkins" <Sherrill.Watkins at dgs.virginia.gov>
>> Reply-To: The James Millen Society Members Email Reflector 
>> <james_millen_society at mailman.qth.net>
>> To: "The James Millen Society Members Email Reflector" 
>> <james_millen_society at mailman.qth.net>
>> Subject: [JMS] Grinding crystals? Is an acid etch possible? Date: 
>> Fri, 1 Jun 2007 09:06:37 -0400
>>
>> Friends: Perhaps an easier way would be to simply immerse the crystal 
>> blank
>> in a strong acid solution, such as hydrocloric or sulfluric acid? That
>> should remove the quartz material in a uniform rate from both sides 
>> of the
>> blank? That is unless the quartz blank is inert to the acid? - Sherrill
>> k4own
>>
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