Breakaway friction | Article about Breakaway friction by The Free Dictionary
stiction (redirected from Breakaway friction)
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Friction that tends to prevent relative motion between two movable parts at their null position.
stiction(STatic frICTION) A failure in early hard drives that caused the read/write heads to stick to the platters. The coating on the platter heated up and liquefied and could become gummy when the disk cooled down. Stiction was a problem when the read/write heads always landed on the platter, known as "contact-start-stop" (CSS). Although texturing the platters helped, it impeded making the bit density greater, and texturing only the landing zone created other problems. The solution was to move the slider and read/write head onto a ramp. See load/unload ramp.
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This characteristic eliminates the problem of stick-slip, in which higher breakaway friction
causes undesirable vibrations.