General information Ceramic ZrO2 Cutlery products
 

  

All our knives are made of chemically stable Zirconium oxide, the new High-tech-material that has almost the same hardness as diamonds.
 		  

 
The original mixture is:
 
ZrO2>94.4
Y2O3 5.25
SiO2<0.015
Fe2O3<0.01
Na2O<0.01
Al2O3<0.25
Cl-<0.01
 
From the beginning it is only a powder that later on will be molded and calcined, thereby creating this extremely hard and durable material.
From the beginning the raw knife material is white, but when using a special calcine method at specific temperature, the material turns black and more solid.
 
To ensure product quality we have established a quality control cheme as below.
 
  

 

The final inspection is made by a knife master that will give the knife its final ultra sharp edge.
In hardness comparison on a scale from 1 to 10 a steel knife has 5-6, our ceramic knives 8-9 and a diamond 10.

The final product is a extremely hard, non-stick material that is impervious to acid foods, non-alergenic, and absolutely stain and rust proof. It does not leave behind any metallic taste or smell, helping to maintain each food's taste.

VonSchieren Ceramic Knives are the most valuable component in every well equipped kitchen, but it can not replace steel knives totally.
In some areas (bending, levering, twisting, hammering, graping or splitting bones or frozen food) you should still rely on a steel knife. Zr02 is flexible, but not as much as steel.

The big difference compared to steel knives is the hardness and weight.
Our knives will last for many years to come before you will notice any difference in "cutting ability".

The ease of use and long lasting sharpness of our knives are our trademark together with our products
distinctive design and quality.

All VonSchieren products have been thoroughly tested and quality verified before commercial sale.

  
Technical data:

Specific density 5.95g/cm
Hardness (HV) >1100-1250
Bending strength 1150Mpa
Fracture toughness 7-10
Grain size <0.5um
Elastic modulus 205Gpa
Thermal conductivity 3w/m ● k
Thermal expansion Coefficient 20-400℃
 

  
   

 

  

www.VonSchieren.com
Schieren - Luxembourg - Europe
A brand from WIR-TEC s.a.r.l.