Homacera Fine Ceramic Co., Ltd focus on designing, producing and trading ceramic knife, ceramic clipper blades and ceramic ***** ceramic knives are made of an advanced ceramic called zirconia, the second hardest material known to man next to diamond. The material&＃039;s properties make it particularly resistant to wear and tear, which means that a ceramic blade can hold its edge much longer than a steel blade without the need for re-sharpening as often as steel knives.