The most distinguishing feature of Kyocera ceramic knives is that they are extremely hard (8.2 on the Mohs hardness scale), as hard as many gemstones and significantly harder than steel at 5-6 Mohs. Your Kyocera ceramic knife is wear resistant, non-magnetic, and chemically inert.

The base material, zirconium oxide, was developed for industrial applications where unusual hardness, wear resistance and non-reactivity were required.

Kyocera Ceramic Paring Knife, 3-Inch White Blade

List Price: $55.99
Buy New: $27.99
You Save: $28.00 (50%)

Features:
• Made from an advanced ceramic close in hardness to diamond
• Will stay ultra sharp much longer than metal blades
• Ergonomically correct poly handle for easy grip
• Dishwasher safe
• Made in Japan by Kyocera

Although the entire Kyocera process is a secret, we know that the knives are made by bonding zirconium particles with heat in a process called sintering. Compared to other ceramic knives, Kyocera’s are made with sub-micron size powder, whose density is higher, resulting in a harder blade and a sharper edge.

Under normal household use your Kyocera may take 3-5 years or more before it needs sharpening. It will not stain, it is dishwasher safe, and it is guaranteed for 5 years.

With the possible exception of the tip, your ceramic knife will not break or shatter if dropped. And most damaged tips can be repaired under Kyocera’ 5-year warranty.

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Technorati Tags: Ceramic Knife

A ceramic knife is made out of very hard ceramic, often zirconium dioxide. Ceramic knives stay sharp longer than steel knives. They are also extremely brittle and will shatter or crack when used to pry. They chip on the edge if used roughly. Usually, though, the edge will merely chip when dropped. Although porcelain is a type of ceramic material, unlike porcelain, ceramic knives do not shatter easily.

Zirconia is very hard; it ranks 8.5 on the Mohs scale of mineral hardness, compared to 6 to 6.5 for hardened steel, and 10 for diamond. As such, they cannot be resharpened the same way as steel blades, and will require sharpening with a diamond sharpener at the factory. Ceramic kitchen knives normally come with a complimentary resharpening service.

Kyocera ceramic knives also offer a so-called ‘black’ blade made by an extra firing or sintering via hot isostatic pressing (HIP). These black knives are said to be ‘tougher’.

Ceramic knives are used by chefs, bomb disposal squads (they are not conductive and not magnetic), divers (they will not rust in salt water), and people with certain allergies (ceramic is chemically inert).

Technorati Tags: ceramic knife