稚嫩漂亮的大学生酒店在线

      <ruby id="bl391"><strike id="bl391"><var id="bl391"></var></strike></ruby>

      <video id="bl391"></video>

      Skip navigation Accessibility information

      Zirconia - stabilised with Magnesia ( ZrO2/MgO )

      Material Information

      Buy Zirconia - stabilised with Magnesia on-line

      We stock and supply the following standard forms:
      Powder Rod Sheet
      Powder Rod Sheet

      Choose a form to search our on-line catalogue  
      General Description:  

      Zirconias partially stabilised with either Magnesia or Yttria have excellent mechanical properties at high temperatures and are relatively inert to hostile environments. They have good impact and thermal shock resistance and are used in refractory applications. Their resistance to attack by most molten metals means they are often used as crucible materials. Their high hardness and wear resistance lead to uses such as extrusion dies and high temperature nozzles. At higher temperatures they become conducting and are used as heating elements. They have also been used as thermal barrier coatings for gas turbine blades.

         

      Chemical Resistance

      Acids - concentrated Fair
      Acids - dilute Good
      Alkalis Good-Poor
      Halogens Fair
      Metals Good-Fair

      Mechanical Properties

      Compressive strength ( MPa ) 1500-2000
      Hardness - Vickers ( kgf mm-2 ) 1200
      Shear strength ( MPa ) 414
      Tensile modulus ( GPa ) 200

      Physical Properties

      Apparent porosity ( % ) 0
      Density ( g cm-3 ) 5.74
      Water absorption - saturation ( % ) 0

      Thermal Properties

      Coefficient of thermal expansion @20-1000C ( x10-6 K-1 ) 5-10
      Specific heat @25C ( J K-1 kg-1 ) 400-500
      Thermal conductivity @20C ( W m-1 K-1 ) 1.5-2.5
      Upper continuous use temperature ( C ) 1000

      Buy Zirconia - stabilised with Magnesia on-line

      We stock and supply the following standard forms:
      Powder Rod Sheet
      Powder Rod Sheet

      Choose a form to search our on-line catalogue  

      Index