Coated disk separator plate, electronic devices that include one or more coated disk separator plates, and related methods of making and using

A hard disk drive comprising:

• a) a plurality of recording disks rotatably mounted on a spindle motor in the hard disk drive, wherein each recording disk has two major surfaces that are opposite to each other;
• b) at least one coated, disk separator plate mounted to a fixture in a non-movable manner, wherein the at least one coated disk separator plate has two major surfaces that are opposite to each other, and wherein the coated, disk separator plate comprises:
• a disk separator plate;
• at least a first coating over the disk separator plate, wherein the first coating comprises a metal-plated coating;
• and
• an outer coating over the first coating, wherein the first coating has a surface underlying the outer coating, wherein the surface has a first water contact angle value, wherein the outer coating has a second water contact angle value, wherein the second water contact angle value is greater than the first water contact angle value, and wherein the coated, disk separator plate is positioned relative to one or more of the recording disks in an adjacent manner so that a gap is present between a major surface of the coated, disk separator plate and an adjacent major surface of the adjacent recording disk.