Re: [Phys-L] Blue color heated steel

[bernard cleyet <bernard@cleyet.org>]

> Anyone with access?  

I can’t believe it, You-all are so poor you won’t pay the $12 or $20 necessary to view more than the abstract?  

Because I ecently inherited over a million dollars from my dead wife,  (Don’t ask me about grief, except I’ll volunteer it’s given me dangerously high blood pressure.)   I spent the money.  After skimming the Wiley fine print, I decided that I wasn’t in violation if I posted in a non-profit way.  Besides there’s fair use also. So it’s here:  


http://cleyet.org/Phys-l/ <http://cleyet.org/Phys-l/>  


However, I’m still in poverty mode, so I paid the minimum, i.e.,  only a 24 hour view.  Their app. may be sophisticated enough for it to disappear tomorrow.  


bc  …. skimmed the article, and apparently it is quite complete in explanation of the interference effects.  



> On 2021/Oct/10, at 17:28, Brian Whatcott <betwys1@sbcglobal.net> wrote:
>
> **********************************************************************************
> I keep hoping to run across some academic paper that shows the optical index of the surface layerof smooth reheated steel increases faster than the oxide layer depth, so accounting for the paradoxical order  of temper colors in carbon steel  with increasing temperature: straw(480K),orange, blue, deep blue (600K),   light blue (640K), then gray around 700K.I really jumped on BCs cite - until I found it lies behind a paywall. Pity! 
> https://analyticalsciencejournals.onlinelibrary.wiley.com/doi/abs/10.1002/sia.2219 <https://analyticalsciencejournals.onlinelibrary.wiley.com/doi/abs/10.1002/sia.2219> 
>
> _______________________________________________
> Forum for Physics Educators
> Phys-l@mail.phys-l.org <mailto:Phys-l@mail.phys-l.org>
> https://www.phys-l.org/mailman/listinfo/phys-l <https://www.phys-l.org/mailman/listinfo/phys-l>