Measurement Techniques of Head and Medium Wear

摘要: The wear rate of modern heads is on the order 100 nm per million meters tape in start-stop mode; about half streaming mode operation. life expectancy a head 3000 to 4000 hours equivalent 3 years use with less than 1% failure (Bhushan, 1985). This extremely small and difficult measure. Consequently, there need for an accelerated test determining relative abrasivity tapes (i.e., resulting from different tapes) resistance various materials contours. Any change contour affects its flying characteristics.