slade420: Are you experimenting with the aluminum oxide ceramic? Interesting.
WillyB: Thanks for the info on GreenCig's method using silica fiber. Nice photos.
nicotime: What is that material in the catalytic converter? Also, I believe the purpose of the nickel foam is to provide an adsorbent for the propylene glycol-glycerin flavored nicotine solution that can be heated without decomposition so that the adsorbed liquid will go to the vapor phase. The small heater coil is encased in a tiny ceramic crucible that radiates the heat into the surrounding nickel metal foam.
I just got confirmation from Chen at Best ECig (Bestecig) on the atty metal in their products. He called it "special nickel" and said that the vapor does not carry any nickel metal.
My concern was deposition of nickel metal into the respiratory tract. I would like to know the analysis of the vapor from Bestecig style attys to test for the actual metal content.
Evidently, as far as I can tell so far, the material is what was stated here in ECF: nickel foam. This material bears high temperatures (1000 degC range), has good porosity for the adsorbent function, and is malleable. Maybe the last characteristic is advantageous for the manufacturing process, keeps the atty profile small.
If the bulk of attys on the market are being made in China, does this mean that nickel foam is the predominant design?
Our goal is the optimum atty, but one without health consequences - safe and effective. Timmah.
