Sharpening Ceramic Knives

[Trout Hound]

Hello All,

The MIL has some ceramic kitchen blades she wants sharpened. Can I do those on my DiaSharp plates, or will they damage the hones? DMTs website says that all their sharpeners will work on ceramic, but there has to be some reason for the new hard coat plates.

Also, any other pearls of knowledge about sharpening ceramics would be much appreciated. Thanks.

 

[bucketstove]

Hello All,

The MIL has some ceramic kitchen blades she wants sharpened. Can I do those on my DiaSharp plates, or will they damage the hones? DMTs website says that all their sharpeners will work on ceramic, but there has to be some reason for the new hard coat plates.

Also, any other pearls of knowledge about sharpening ceramics would be much appreciated. Thanks.

These are DiaSharp right? Sharpening Ceramic Knives with DMT - DMTSHARP

Use 1lb or less to sharpen and keep the diamonds from dislodging and ceramic knife from chipping

If you press too hard, you can dislodge diamonds , they're electroplated, 2/3rd is buried in nickel, the rest is showing,
and you're supposed to use a pound or less when sharpening, otherwise you run the risk of dislodging the diamonds

better than electroplating is vacuum brazing, its used in saws ... takes higher pressures
thats probably what DMT is using in "Hardcoat"

update:
Not sure if this is the HC - Hard Coat version of the 8-inch DuoSharp® bench stone extra-fine / fine sharpening a ceramic knife - DMTSHARP
Its not the hard coat version, hardcoat is white

 

[Trout Hound]

Mine are actually the continuous surface.