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WallyR
Dodge Dakota
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7/19/2002
15:14:08
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 Subject: New(?) Friction Proof Coating
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Saw this in an industrial publication. Check it out, if the cost is not astronomical it could add HP and who knows how much life to our engines and drivetrains. Seems to have a pretty good foothold in racing already.
http://www.microblueonline.com/
Wally
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Canucker
Dodge Dakota
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7/19/2002
17:56:33
|  RE: New(?) Friction Proof Coating
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how astronomical is the price? (I couldn't find any $$ figures on the web).
If you (or anyone) is interested in this type of coating, there are other, similar processes out there that are a little more proven ... the thing that worries me about this coating is that it works on all types of materials ... how can it work and steel and plastic at the same time? The only other type of coating that can do this is paint ... which chips and peels off.
The following work on ferrous steels:
Nitriding (or Melonite) is a common process that actually imbeds nitrogen particles into the top .020" (or so) layer of metal...it results in coefficient of friction around .15 (.015?) (less than this microblue stuff) and a rockwell hardness upwards of 50 HRC, and surface smoothness less that 32 Ra (polishing gives about a 32 Ra surface finish).
The above numbers may be off a bit cause I'm just pulling them off the top of my head.
Another process is called Boronizing. Similar, but imbeds Boron particles into the metal surface...it's cheaper than nitriding but more brittle (susceptable to cracks).
I'm not sure why nitriding hasn't caught on in racing (or maybe it has) but it's always been something in the back of my mind that I was thinking of experimenting with ....I think one potential draw back could be temperatures ... hmmm....
anyways, enough rambling outta me. If anyone is interested in more, drop me a line or just do an internet search...
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Bruce P
Dodge Dakota
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7/19/2002
21:03:55
| RE: New(?) Friction Proof Coating
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Gee... the 4.7L V8 allready has teflon-coated pistons from the factory.
I have read several articals about coatings. There are coatings for EVERYTING from the inside of the intake/exhaust for better flow or insulation. There are coatings for the inside of the engine to improve oil-drainback to the pan. They all seem to have some slight benefit. Some need to be applied under very controled conditions.
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sandman
Dodge Dakota
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7/20/2002
14:44:35
|  RE: New(?) Friction Proof Coating
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Bruce only the skirt is coated and it is moly. It is primaly to help prevent scuffing during break in. You can see flakes of it in the break-in oil. The only time any of these coating come into play is when oil fails to due it's job of seperateing the parts. Nitrideing (sp) is used on crankshafts and cams. You can do brake rotors as well. The only coating that i have seen make a real difference is on top of the piston of nitrous and turbo charged engines. It reflects heat back into the the cylinder. Top Fuel cars have been useing a blue coating on their pistons for years. It does make a difference but not realy anything you can see on an OEM stock eningine or even a mildly modified engine. If you are not running Nitrous or boost pressureas above 8 psi I doubt you will ever realy notice the difference. You would see more results from cermi-cromeing the cylinders or useing cromemoly sleeves and heattreated SS rings. You would wear rings out before you wore the cyclinder out.
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