Ceramic turbocharger info source??

[ECMnut at aol.com]

That's interesting.  The Supra 3.0L is rumored to have
the same turbo, but with a different exit on the ex-housing.
 It's a Toyo-CT26 unit, that someone mentioned was really
a Hitachi manufactured piece for Toyo..
MV

> Slightly skewed topic,please forgive me,but no doubt someone here can 
>  point me to an online source of information with regard to ceramic 
>  tubocharger technology.For example,the Toyota MR2 turbo proudly 
>  displays a badge "Twin entry ceramic turbo" within the engine 
>  bay.What I want to know is if the shaft,impeller wheel(s) or bearings 
>  are "ceramic".