Quote:
Originally Posted by DrKnow65
Lutach, The TZP looks interesting for bearing apps' not sure it would work for my motor yet though, it has a very low thermal conductuvity so it would act like an insulator. The working temp is low enough that the heat buildup in the combustion chamber would start degrading the TZP before long. So not good for high hours, but mabey good for a high power drag motor where you intend on short service intervals. But it does have good potential for a alloy when they start mixing it with the nano tech. Other problem is it's high expantion rate, but you could machine the tollerances into the parts, it would just need to come up to temp before it's efficient (which would take some time as it is an insulator).
Ceramic-like alloys will be the stuff for this motor eventually, combined with the new "thermal diode" technology they are working on now...
I looked into tungsten carbide as a coating for the steel parts of the motor a while back, have to be careful how it's used as it's brittle (at higher temps). But very hard, and a good heat conductor.
Sapphire and sialon, I had not considered. Will look into them.
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I never thought of heating my tungsten carbide sample to extreme heat and slamming the hammer on it
. I'll try that in the summer time. I know they use it in some high temp oven or as a lighting element. Sapphire as I know is the second hardest material (Diamond comes first), I guess that's why Breitling went with a 3mm thick Sapphire glass for it's Sea Wolf Avenger watches (I have one and it's tough). Has any submarine been able to dive 10000ft? Have you contacted the folks at MIT?