Ceramic knife

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A ceramic knife is a knife made out of very hard ceramic, often Zirconium Oxide. These knives are very hard and 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. Note that they are not porcelain, per se, although porcelain is a type of ceramic material; unlike porcelain, ceramic knives do not shatter easily.

They are used by very talented chefs, Explosive Ordinance Disposal (they are not conductive and not magnetic), divers (they will not rust in salt water), and people with certain allergies (chemically inert). The hardness of ceramic blades is only surpassed by diamonds. They also will not set off metal detectors, making them somewhat dangerous.

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