Good morning, ladies and gentlemen.
I am a knife sharpener. As many of you probably know, ceramic "stones" and rods are used in knife sharpening.
Have you ever made one?
The most popular ceramic sharpeners are made by Lansky, the "Crock Sticks," and Spyderco, the "Sharpmaker."
These are quite expensive.
My mother had a kiln and dozens of molds 40 years ago, and was very much "into" the cermics hobby.
It occurred to me that anyone with a kiln and knowledge could make these devices. I have read that the clay used to make the slip is "Zirconia."
I would appreciate a buit of your expertise here. Cuold any ceramic hobbyist make these sharpeners? Is the Zirconia difficult to obtain?
These are unglazed, and the sharpening ability is controlled by surface texture, rather than grit size as would be the case with corborundum.
I assume the surface texture of an unglazed cersmic is controlled by the preparation of the green ware, but I could be mistaken here.
Thank you in advance for any information.