Well, I did a little research. Found that "boundry layer" (as I said a while ago) is an acceptable term when it comes to describing the layer of gases that can exist between rotor and pad:

"While grooved, drilled and slotted rotors offer an enhanced appearance and add some resistance to the boundary layer of gasses that can build up between the pad and rotor, they are not designed to withstand the extreme temperatures that are produced on the racetrack. "

http://www.tirerack.com/brakes/tech/techpage.jsp?techid=78¤tpage=85




What causes brake pad glazing?
Brake pad glazing is caused when the brake pad friction material is overheated.
This results in crystallized friction material on the pad surface and the brake disc.
Typical symptoms of glazed brake pads include: Poor stopping performance, vibration or brake judder, and cracks or fissures in the brake pad material.
Pad glazing is typically caused by operating the brake pads at a temperature above the specified temperature range of the friction material or not properly following the 'Bedding-in' instructions for the brake pads. Always follow the manufacturers brake pad bedding-in instructions and use a brake pad that has a temperature range that is sufficient for its intended use.



http://www.raceshopper.com/tech.shtml



Resist the urge to immediately go out and hammer on the brakes with high speed, tire smoking stops. This will likely lead to pad glazing, a condition where the resins in the pad crystalize on the friction surface, resulting in poor stopping performance and excessive noise

http://www.ducatigarage.netfirms.com/brakepads.html


As I read this, I get a visual that it's not the gases bonding to the rotor, it's the fiction material (pad material) crystallizing.



Brian

Red 97 Eclipse GS (420a) MTX
Custom Garrett T3 Turbo system
Megasquirt w/52 lb/hr injectors & a Walbro 255
Kicker/Alpine Audio (3 amps, 2 subs)
90 Cav 2.2 TBI auto (winter) <- yeah, it's fast