ceramic knife
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 Lansky 8" Ceramic Sharp Stick List Price: Sale Price: $8.99 You save: $3.96 (31%)  Eligible for free shipping!Availability: Usually ships in 1-2 business days DescriptionUpdated version of a Butcher's Steel featuring space age alumina ceramic 8" sharpenig rod in a hardwood handle  |
 Stone River Gear SRG1STLB Ceramic Folding Knife with Titanium Handle List Price: Sale Price: $67.30 You save: $52.65 (44%) Eligible for free shipping!Availability: Usually ships in 1-2 business days DescriptionStone River Ceramics Folding Knife with Titanium Handle, Precision Cutting Tool... Ideal for use in the field for skinning and dressing game. Excellent for straight cuts of fruits, vegetables, boneless meats, paper and rope. |
 Whitetail Cutlery Ceramic Folding Knife List Price: Sale Price: $33.04 You save: $48.86 (60%) Eligible for free shipping!Availability: Usually ships in 2-3 business days DescriptionRazor - sharp, amazingly unique Whitetail Cutlery Ceramic Folding Knife! Only diamond is harder than this Zirconia ceramic blade...the razor-sharp edge stays that way 10 times longer than steel! A sharp performer and an interesting collectible... |
 Spyderco Ultra Fine Benchstone with Box, 2 X 8 -Inch List Price: Sale Price: $43.83 You save: $44.12 (50%) Eligible for free shipping!Availability: Usually ships in 1-2 business days DescriptionSpyderco's bench stones are flat and broad and ideal for honing wide tools like plane irons, chisels, large blades, woodworking equipment, even ski edges. Each 2 -Inch x8 -Inch stone comes packaged in a rigid polymer storage case complete with non-skid rubber feet for tabletop use... |
 Spyderco Ceramic File 4 Piece Set w/ Leather Pouch List Price: Sale Price: $45.21 You save: $24.74 (35%) Eligible for free shipping!Availability: Usually ships in 2-3 business days DescriptionNew files can also be purchased in Spyderco four-packs (sold separately). This set of four fine-grit ceramic files, stored neatly in an included leather carrying pouch, helps maintain your cutlery and debur hardened tools, molds, and even carbide... |
 DOLPHIN - Ceramic Folding Knife - 3" White Blade - G-10 Handle Red & Black, Pocket Clip List Price: Sale Price: $35.95 You save: $14.04 (28%) Eligible for free shipping!Availability: Usually ships in 1-2 business days DescriptionCeramic blade is light, ultra sharp and chemically inert. It will never oxidize, will never affect taste of your food by leaving metal taste. Super comfortable handle with two-color G-10 scales is a pleasure to hold and provides great grip. |
 Spyderco Medium Benchstone with Box, 2 X 8 -Inch List Price: Sale Price: $30.30 You save: $34.65 (53%) Eligible for free shipping!Availability: Usually ships in 1-2 business days DescriptionSpyderco's bench stones are flat and broad and ideal for honing wide tools like plane irons, chisels, large blades, woodworking equipment, even ski edges. Each 2 -Inch x8 -Inch stone comes packaged in a rigid polymer storage case complete with non-skid rubber feet for tabletop use... |
 Stone River Gear SRG4RCB Black Ceramic Folding Knife with Rubberized Handle List Price: Sale Price: $52.23 You save: $32.72 (39%) Eligible for free shipping!Availability: Usually ships in 1-2 business days |
 Stone River Gear SRG2GLW Ceramic Folding Knife with G10 Handle List Price: Sale Price: $55.24 You save: $34.71 (39%) Eligible for free shipping!Availability: Usually ships in 1-2 business days |
 Boker Plus Anti-MC Folding Knife List Price: Sale Price: $46.30 You save: $38.65 (45%) Eligible for free shipping!Availability: Usually ships in 1-2 business days DescriptionThe unique combination of the most modern materials grants an exceptional position in the knife market. The blade of the Boker Plus Anti-Mc is made of hi-tech ceramic, which is 100% nonmagnetic and provides outstanding edge retention and corrosion resistance... |
Why are ceramic knifes so incredibly sharp???
Thanks for the extra detail....Tom Science 4
A ceramic knife is a knife made out of very hard ceramic, often zirconium dioxide. These 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.
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Zirconia is very hard, for example it comes in at 11 on the Mohs scale of mineral hardness, compared to 7 to 8 for hardened steel, and 15 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.
The company Kyocera also offer a so-called 'black' blade made by an extra firing or sintering in a hot-isostatic press (HIP). These black knives are said to be 'tougher'.
They are used by 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).
Ceramic knives present a conceptual problem to the security industry since ceramics are not picked up by metal detectors. To solve this many manufacturers on non-military knives include a quantity of metal in each knife to ensure they are detectable with standard equipment. Ceramic knives can be detected by extremely high frequency scanners, although (as of 2006) these scanners are not yet in widespread use.
