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  1. Magaro

    The end of microcoils?

    Thanks for the background info. That is an even less improbable concern, but I can see how people could worry about it.
  2. Magaro

    The end of microcoils?

    Should we happen to meet someday, I hope we have the good sense to disconnect from the insanity and have an intelligent discourse about the universe. Heading to the lair to dry burn another pair of Kanthal A1 coils.
  3. Magaro

    The end of microcoils?

    Dude, you're killing me. ;) Seriously, every alloy, every specific application (every environment) is different - and for most has not been studied in excruciatingly detail. But, according to the scientific literature I can access, for EVERY Iron/Chrome/Nickel/Aluminum alloy of concern, the...
  4. Magaro

    The end of microcoils?

    I didn't use the quote to support the scientific fact that Kanthal forms an alumina scale. I was simply using it to illustrate that even 309 stainless steel, an alloy which DOES form a chromium scale, cannot produce Cr(V1) - hexavalent chromium, which the GOVERNMENT recognizes as a severe health...
  5. Magaro

    The end of microcoils?

    "Credentials" are everything in the scientific community. Most professionals confine their scientific opinions to subjects in which they have scientific expertise. I personally have the integrity to refrain from expressing opinions about health issues, because I am a lowly PhD Metallurgical...
  6. Magaro

    The end of microcoils?

    NO criticism intended. I love this post. I just wanted to point out that even your average stainless steel isn't as hazardous as Dr. F. makes Kanthal (or any of our other current coil alloys) out to be.
  7. Magaro

    The end of microcoils?

    Appreciate your input, but not the answer I was looking for. I don't feel like I should do "a little footwork" to chase down someone who helps toss a bomb out into our community and then doesn't have the integrity to come defend himself. Actually, this sounds pretty much inflammatory. And...
  8. Magaro

    The end of microcoils?

    Awesome. Much appreciated, sir (I checked :)). Further clarification would be helpful.
  9. Magaro

    The end of microcoils?

    I can't quote that thread, but here is a copy&paste quote from one post: "Certain types of SS, particularly those with low (or zero) Al and Mo content and lower Ni content (such as 309), exhibit volatilization of the Cr(III) oxide layer and subsequent oxidation of the vapor phase to Cr(VI) at...
  10. Magaro

    The end of microcoils?

    For the moment, I'm hoping that LouisLeBeau will bring this thread to his attention and that he will respond. If not, I will definitely contact him.
  11. Magaro

    The end of microcoils?

    The corners of the internet sometimes confuse me. I simply want to know his degree and experience qualifications to speak authoritatively about metal coils. This issue of raising concerns about hexavalent chromium is disturbing. And wrong. If I thought for a moment that Kanthal coils were...
  12. Magaro

    The end of microcoils?

    Your post popped up while I was multitasking and writing my previous post. Can you point me at Pedro Carvalho's bio somewhere? I'm confused about how he could support and amplify the claims Dr. F has made about coils. It would be great if he could join this thread and participate in this discussion.
  13. Magaro

    The end of microcoils?

    Does anyone know Pedro Carvalho's qualifications as an expert in metallurgy? I did a quick Google, but his name is pretty common, and I couldn't identify him with any certainty. The closest I could find was a biochemist in Portugal. I'm curious, because Dr. F. cite's his expertise without any...
  14. Magaro

    The end of microcoils?

    For anyone who would like to know more about Kanthal, here is a great place to start: http://www2.kanthal.com/sandvik/0971/internet/s003237.nsf/F6421C7808255963C12572BB001C8704/$file/1-A-2-3%20appliance%20handbook%20US.pdf?OpenElement
  15. Magaro

    The end of microcoils?

    The aluminum oxide scale which forms on Kanthal is virtually impervious to diffusion by Iron or Nickel. That's why Kanthal heating coils of all kinds last so long. The oxide is highly resistant to spalling, and has very high electrical resistivity, making coils resistant to shorting.
  16. Magaro

    The end of microcoils?

    You're not implying that aluminum is a heavy metal, are you? Because that would be, more or less, actually completely wrong.
  17. Magaro

    Catfish atty mods.

    Tom: How's my new future favorite squonker coming along? :thumbs:
  18. Magaro

    The end of microcoils?

    Oh, please. Do tell. I'm all ears.
  19. Magaro

    Catfish atty mods.

    About time you showed up. :thumb:
  20. Magaro

    The end of microcoils?

    I’ve been thinking. I wonder how hard it would be to find an oppressed minority group that feels like their right to exercise their passion might be in jeopardy. I could profess to be an advocate for their rights and offer to support them in a public forum, based on my "professional...
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