Introduction of Ceramic Knife Zirconia diamond is a high temperature synthetic cut stone made from Zirconia (ZrO2) by Russian scientist in 1975. And its characteristic is very close natural diamond’s also. Ceramic Knife is made from the material which likes diamond’s characteristic. This high-tech Knife is produced by same manufacture craft, high temperature synthetic. We believe it will make your living healthy and convenient.Characteristic1. Ceramic Knife has a high hardness. It will sharp ever.2. The fine and close surface of blade would avoid the stain from juice of food.Easily clean up to prevent bacteria growth.3. Corrosion resistant, no metallic taste and smell. The food could keep original taste.4. Light weight makes it easy to use.Attention1. Generally, it use with woody or plastic chopping block, but not stone chopping block.2. Preferably using for vegetable, fruit, flesh, do not use to chop or pry. Do not drop or pry as this may cause the knife to chip or snap the edge.3. It can be cleaned by water or detergent; do not put it in the dish washer. Please put it into protective box after cleaning.4. Please keep it carefully since the blade is very sharp, prevent children to touch it.5. Avoid sharp it by traditional sharpener6. Please remember to apply for customs declaration while you are carrying diamond knife by air. Property:CompositionWt%ZrO2+Y2O3%≥99.5Specific densityg/cm3>6.0Hardness(HV)HRA>87Thermal expansionCoefficient(20-400)(10-6/K)9.6(20 400)Elastic modulisGPa200 250Fracture toughnessMPa.m1/27-10Bending strengthMPa>1150Grain sizeμm<0.6Thermal conductivityW/(m .k)