Serration Saturday's...

Serration Saturday...
Buck 119 Special with brass hardware, date marked 1996 with deep gold Titanium Nitride (TiN) "Buckcote" for Rockwell hardness of 82C (HRC). knife has original 'Buckcote" marked sheath but sadly no original box.

The blades were chisel sharpened to expose the coating on the microedgemicro edge. In use, the steel wore away in preference to the coating making them self sharpening. In theory, single bevel geometry is inherently twice as sharp as a double bevel.

From CJ Buck: The company that did the vapor deposition was Molecular Metallurgy Inc. It was a fascinating process involving putting in targets, slabs of titanium, aluminum, zirconium etc and bombarding them electrically in a chamber charged with nitrogen. The targets throw off atoms which bond with the nitrogen and slam into the blade penetrating the surface and then building up over time creating a new hardened skin. You would not call it a coating anymore then you would call your own skin a coating and that was why we changed the name. You could put in multiple targets of more then one material and get the combos like titanium/aluminum nitride or titanium/zirconium etc...

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Buck 175 Lightning Series HTA II and Buck 722 Spitfire.

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Repost. Speaking of fully serrated blades reminded me of this knife, the Buck NightHawk model 655 fully serrated (655BX #2456). For sure the prototype in the picture exists. I've never seen one in the wild. This picture is from the 1997 catalog. Interestingly, it is also listed in the 1998 catalog, same catalog number but the accompanying picture is of a half serrated blade.

653.655.Nighthawk.1997.Catalog.jpg
 
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