Ceramic Machining

ceramics may not be a good choice. thermal shock can be a problem. If you expect people to do your work, @ least give enough info to make that possible

Ceramic is great material for casting, since it has low CTE. It may allow steel to quench at slower rate, which change phase of steel crystal. You may gain higher strength steel but less toughness. Visit phase diagram and determine first what kind of steel phase/properties you want, and then determine if ceramic would allow you to get good strength and sufficient toughness. Unless otherwise you have to create good ceramic tool that permits good steel properties.