Hard disk platters all the same? Anatomy?? Answered
Found a broken HDD of 1 Tb today. Always good to take apart for the magnets. The platters were 'slightly' warped; must have been thrown around... The highly reflective platters can always be looped on a string, to chase away crows from my garden. By now, I have several dozens of old platters. I was thinking, apart from practicalities like dust and gentle handling, could it be possible to just substitute the platters with other (old= much lower capacity) platters? The 1 Tb mechanism, including the heads, would want to format the platters for a Tb amount of storage I assume. If the platters are mechanically identical (I notice they don't have a standard thickness), could this work? Does anyone know what alloys are used, are they coated, with what??? I see no attraction when I hold a supermagnet to it, but there ought to be some kind of magnetic carrier on it.... The shine on the platters might suggest some exotic metal coating; palladium or something like that....???