Semiconductor Thermal Mechanical Wear Resistant Fluid Handling Electronic TTZ

TTZ Zirconia Material Properties
   Trade Name    TTZ
   Composition    MgO Partially Stabilized Zirconia
   Color    Ivory

   Property Units Test Value
   Density gm/cc ASTM-C20 5.72
   Crystal Size Microns Thin-Section 35
   Water Absorption % ASTM-373 0
   Gas Permeability 0
   Flexural Strength (MOR), 20 degrees C -- -- 720 (105)
   Elastic Modulus, 20 degrees C GPa (psi x 106) ASTM-F417 200 (29)
   Poisson's Ratio, 20 degrees C -- ASTM-C848 0.30
   Compressive Strenght MPa(psi x 103) ASTM-C773 1750 (254)
   Hardness GPa(kg/mm2) KNOOP 1000 gm 11.8 (1200)
    Rockwell 45 N 77
   Tensile Strength, 25 degrees C MPa (psi x 103) ACMA TEST #4 410 (60)
   Fracture Toughness K(Ic) Mpa m1/2 NOTCHED BEAM 8-11
   Thermal Conductivity, 20 degrees C Wm degrees K ASTM-C408 2.2
   Coefficient of Thermal Expansion, 25-1000 degrees C 1 x 10-6/degrees C ASTM-C372 10.1
   Specific Heat, 100 degrees C J/kg*K ASTM-E1269 400
   Thermal Shock Resistance, (delta)Tc degrees C NOTE 3 350
   Maximum Use Temperature degrees C NO-LOAD COND. 500
   Dielectric Stength ac-kV/mm (acV/mil) ASTM-D116 9.4 (240)
   Dielectric Constant, 1MHz 25 degrees C ASTM-D150 28.0
   Dielectric Loss (tan delta) 1MHz 25 degrees C ASTM-D2520 0.0010
   Volume Resistivity 25 degrees C ohm-cm ASTM-D1829 >1013
500 degrees C ohm-cm ASTM-D1829 2 x 105
1000 degrees C ohm-cm ASTM-D1829 >103
   Impingement -- Note 4 0.63
   Rubbing -- Note 4 0.57

This chart is intended to illustrate typical properties of advanced ceramic materials available from CoorsTek. The designer should recognize that exact properties may vary according to product configuration and can sometimes be tailored to meet specific requirements.

Contact CoorsTek for cost-effective design, development and manufacturing assistance. The information set forth herein is offered for comparison only, and is not to be construed as absolute engineering data or constituting a warranty or representation for which we assume legal responsibility.

Note 1: Data Measurements -- All data measurements are typical and made at room temperature unless otherwise noted.

Note 2: Composition Control -- All CoorsTek ceramic compositions are controlled using modern chemical spectrographic and x-ray fluorescent methods.

Note 3: Thermal shock resistance -- Test are run by quenching samples into water from various elevated temperatures. The change in temperature where a sharp decrease in flexural strength is observed is listed as (delta)Tc.

Note 4: Wear resistance -- Impingement tests are run by using a dry 240 grit fused alumina abrasive. The indices in the chart are calculated by dividing the material volume loss by the volume loss of an AD-85 alumina control. The lower in the index, the better the wear resistance.

*Ceramic property values vary somewhat with method of manufacture, size, and shape of part. Close control of values of most properties can be maintained if specified.
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