Ceramic Fastener Material Properties

Property Unit Standard A998 3YTZP
Chemistry Document - - - PDF PDF
Microstructure Image - - - JPG JPG
Physical Properties    
Composition (A) weight %   99.7% Al2O3 5.4% Y2O3
Bulk Density g/cm3 ASTM 2320 3.89 6.01
Porosity volume % ASTM D4404 0% (B) 0% (B)
Grain Size (C) micron, μm ASTM E112 4 1
Color     Ivory White
Mechanical Properties
Hardness, Vickers GPa All 5 kg U.O.S. 9.66 12.32
4-point Bend
Strength (MOR)
MPa ASTM C1161 365 793
K1C MPa·m1/2 ASTM C1421 4 8.40
Thermal Properties
Service
Temperature (in Air)
°C No Load
Cond.
1650° 1500°
Coefficient
of Thermal
Expansion (CTE)
°C-1 (25-1000°C) ASTM C372 8.4 x 10-6 10 x 10-6
Thermal
Conductivity
(20°C)
W/m·°K ASTM C408 30 2.2
Electrical Properties
Dielectric
Strength
Volts/mil ASTM D149 220 228
Dielectric
Constant
@1MHz @ 20°C ASTM D150 9.8 29
Volume
Resistivity
Ohm·cm @ 25°C ASTM D1829 >1014 1013
Ohm·cm @ 300°C ASTM D1829 >1011 >104
Ohm·cm @ 500°C ASTM D1829 >107 <103
  1. Controlled by the Batch Composition
  2. Impervious
  3. Electron Microscope, Scanning- Tescan Lyra3 GMU FIB SEM, University of New Hampshire, 2019

Other formulations are available. Please contact us for more information.

Properties not recorded are in testing.

Heat Resistant Corrosion Resistant Non-conductive Non Out-Gassing

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