What Are Ceramic Knives Made Of
It has its popularity for its hardness.
What are ceramic knives made of. Storing your knives is a whole other conversation but there are some things worth knowing about ceramic knives. Also known as zirconia. Clearly it is basically a knife made of tough and durable ceramic. In december 2014 we have done a new comprehensive test with ceramic knives of multiple manufacturers.
The mohs scale of mineral hardness of ceramic is 8 5 while steel is just 4 5 while diamond as the top of the list is 10. These knife blades are usually produced through the dry pressing and firing of powdered zirconia using solid state sintering. We have tested the knives on sharpness how long they remain sharp user friendliness how it holds under pressure and how it reacts to sharpening. The material is also called zirconium dioxide and zirconia.
It s very hard significantly harder than stainless steel or carbon steel. But this isn t the same ceramic that s used to make your coffee mug. Second since they re both super sharp and super brittle a protective cover is a good idea for your fingers and for the knife. First of all they aren t magnetized so you can t store them on a magnetic strip.
There are many ceramic brands available to chefs and a high quality ceramic knife will cost less than a similar knife made from fully forged stainless steel. Abs plastic was used to make the handles and the blades stay sharp for a long time. A ceramic knife is a knife designed with a ceramic blade typically made from zirconium dioxide zro 2. The most common ceramic for knives is zirconium oxide also known as zirconia.
In this test we have compared the ceramic knives with comparable kitchen knives made out of steel. Yes they re really made of ceramic.