Actually Tom, somebody already did something similar to that some years ago. I believe they were called Tygrys knives.
Except he used O1 for the core and titanium outside. Light, strong, flexible and it would cut pretty good too.
For some reason, they are not around anymore. Maybe the idea didn't work so well after all...Anybody here on the forums have one of their blades? I believe their first model ( perhaps their only model) was designed by Tai Goo. I like the idea about 3V though...
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Regards
Joshua "Kage" Calvert
"Move like Water, strike like Thunder..."