2:22 - That's not copper. Those platters are made of aluminium and they're coated with iron oxide (yes, literally rust) and that's why you see them with that orange-ish colour. Iron oxide substrates were commonly used on magnetic media because they have good magnetic field retention properties, actually the same material is used on tapes such those of the (once) common music and video cassettes, on floppy disks and so on. When you see a magnetic media whose colour is orange-ish or brown-ish, that's because it's coated with a compound made primarily of iron oxide. Starting from the late 80ies-90ies manufacturers switched to other coating materials and other methods of applying them to the disk surfaces (before they literally painted the disks, after the coating was applied by anodization), that's why hard drive platters made after that period have all a mirror finish. That has to be done because of the increase in disk capacity, which required the magnetic signals being denser and at the same time weaker, to prevent interferences between adjacent tracks on the disk. Hence more precise materials were needed.
I don't know that, thanks! Yes I said Cooper but later i took them out,and they were so lightweight, at that moment I knew that I made mistake in video 😁
Hi, ive been checking some if your content since first finding your dpf cleaner tips. Are you still making content now?
I don't make right now, but I WILL 😊 cheers 🍻
2:22 - That's not copper. Those platters are made of aluminium and they're coated with iron oxide (yes, literally rust) and that's why you see them with that orange-ish colour. Iron oxide substrates were commonly used on magnetic media because they have good magnetic field retention properties, actually the same material is used on tapes such those of the (once) common music and video cassettes, on floppy disks and so on. When you see a magnetic media whose colour is orange-ish or brown-ish, that's because it's coated with a compound made primarily of iron oxide.
Starting from the late 80ies-90ies manufacturers switched to other coating materials and other methods of applying them to the disk surfaces (before they literally painted the disks, after the coating was applied by anodization), that's why hard drive platters made after that period have all a mirror finish. That has to be done because of the increase in disk capacity, which required the magnetic signals being denser and at the same time weaker, to prevent interferences between adjacent tracks on the disk. Hence more precise materials were needed.
I don't know that, thanks! Yes I said Cooper but later i took them out,and they were so lightweight, at that moment I knew that I made mistake in video 😁
@@HOWTOdays You're welcome :-)
Hello my friend, are you from Bulgaria because your accent really sound like a Bulgarian man🇧🇬💪
No bro,I'm from Serbia, we are neighbours 🤣