Art. No.: WT-CK11B Material: Ceramic blade in black ABS handle with rubber coating (TPR) Hardness of ceramic blade: HRC‰¥87 FYI: Ceramic knives are made of an advanced, high-tech ceramic called
zirconium oxide (also called zirconia). This material is second
only in hardness to diamond. For the technically minded, zirconium
oxide has a hardness of 8.2 mohs (vs. steel at 5-6 mohs and diamond
at 10 mohs). Our ceramic knife blades are actually HARDER than
steel knives. Zirconium oxide is extremely hard and resists most
wear from normal kitchen use. The superior hardness, superior abrasion resistance, superior
corrosion resistance, superior erosion resistance and the superior
thermal resistance, as well as the unique electrical and mechanical
properties of Zirconia are the enabling factors in these key
applications. Zirconia has the highest strength and toughness at
room temperature of all the advanced ceramic materials. The fine
grain size allows for extremely smooth surfaces and sharp edges. It
has no metallic taste or smell and won't brown fruits and
vegetables, it make ceramic knives and accessories ideal for
kitchen usage.