On Saturday, December 20, 2014 1:51:04 PM UTC-5, Ed Huntress wrote:

Well, maybe you'll find a way to restore them. *Good* diamond hones
are so friggin' expensive in all but the smallest sizes that I avoid
them -- or anything that requires them to sharpen.

Diamond abrasives used to be expensive, but they seem to be fairly cheap now.
I have a couple of the Eze-Lap hones that I have had for years. The cost of them now is about the same as I paid. But taking inflation into account, they are now about half the price.

http://eze-lap.com/hunting_fishing_o...se/hone-stone/

and ebay item 321469341282. Not bad for about $5 when you add shipping.

This site http://www.tedpella.com/company_html/hardness.htm Shows SiC is harder than Zirconia so you can use that. But the diamond is a lot faster.

I have some diamond coated stainless disks, most made by Kinik. They were used to flatten silicon wafers and are worn out as far as industry is concerned. At least that is what I suspect as they were in the local scrap yard.. But they still work well. The only problem is they are relatively coarse. Too coarse for sharpening knifes.

But back to how to sharpen Ceramic Knifes. Just do the same as sharpening steel knifes.

Find of the day. A soft Arkansas stone for twenty five cents at the Habitat for Humanity store. It was dirty and not close to flat, but rubbing it on some sandpaper got it flatter and clean.

Dan



Maybe silicon carbide is hard enough; I don't know. Anyway, remember
that you don't have to worry about burrs, so you can drag the edge
across a stone, rather than pushing into it.

I'm with you on carbon steel knives. I have some that are 60 years old
or more. My parents sold Sabatier (plain carbon) and Zanger (440 ss)
in their store, so I have some really fine kitchen knives. And at
least 30 sharpening stones. g

--
Ed Huntress