Re: [TCML] unknown tube...

[Jim Lux <jimlux@xxxxxxxxxxxxx>]

Frank wrote:
> It is due to the type of glass in Halogen lamps, the envelopes are 
> quartz and the intense heat and oils will cause premature failure of the 
> lamp due to reaction with the quartz and skin oils causing the lamp to 
> lose its pressure.

Considering that silica/fused quartz/etc is one of the more inert 
materials known, I find this sort of unlikely.  Fused silica  has 
significant advantages for this sort of application: very low thermal 
coefficient of expansion; high melting/softening point; high stiffness.




>

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