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Ernest Christley wrote: 
George Lendich wrote: 
Are they really going to have ceramic coatings on the side housings? 
 I have nothing to suggest that they will, other than it being the most realistic choice.  The other option is steel inserts.  Steel inserts are doable, but they carry a lot of machining, joining and dissimilar metal baggage.  The ceramics would be a cast/bake in place operation. 
  
Why not AlTiN?  It's hard, durable, very heat-resistant, and it can be applied to aluminum. 
 
Dale R. 
COZY MkIV #497, Ch. 12 
Ch's. 13, 16, 22 & 23 in-progress 
http://members.cox.net/rogersda/Products.htm 
 
 
 
 
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