Solid Ceramic Fasteners

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ZTA (Zirconia Toughened Alumina) Fasteners Now Available - Complete List

Material Properties

Property Unit Standard A998 3YTZP ZTA8
Chemistry Document - - - PDF PDF PDF
Microstructure Image - - - JPG JPG JPG
Physical Properties
Composition (A) weight %   99.7% Al2O3 5.4% Y2O3 85% Al2O3
Bulk Density g/cm3 ASTM 2320 3.89 6.01 4.2
Porosity volume % ASTM D4404 0% (B) 0% (B) 0% (B)
Grain Size (C) micron, μm ASTM E112 4 1 1
Color     Ivory White Tan
Mechanical Properties
Hardness, Vickers GPa All 5 kg U.O.S. 9.66 12.32 12.48
4-point Bend
Strength (MOR)
MPa ASTM C1161 365 793 568
K1C MPa·m1/2 ASTM C1421 4 8.40 6.55
Thermal Properties
Service
Temperature
(in Air)
°C No Load
Cond.
1650° 1500° 1650°
Coefficient
of Thermal
Expansion (CTE)
°C-1 (25-1000°C) ASTM C372 8.4 x 10-6 10 x 10-6 8.3 x 10-6
Thermal
Conductivity
(20°C)
W/m·°K ASTM C408 30 2.2 27
Electrical Properties
Dielectric
Strength
Volts/mil ASTM D149 220 228 228
Dielectric
Constant
@1MHz @ 20°C ASTM D150 9.8 29 10.6
Volume
Resistivity
Ohm·cm @ 25°C ASTM D1829 >1014 1013 >1014
Ohm·cm @ 300°C ASTM D1829 >1011 >104 >109
Ohm·cm @ 500°C ASTM D1829 >107 <103 >106
  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.

Ceramics Experts Stock ceramic fasteners or OEM ceramic parts... Everything is manufactured under the watchful eyes and guidance of the same highly trained, expert engineers.

Choice of Materials Stock fastener inventory includes:

Other production formulations available. Contact us.

Eight Head Styles Metric or U.S. Inch, in Various Lengths

Matching Hex Nuts and Flat Washers also Inventoried

Specialty Fasteners

Other Specialty Fasteners also available including: solid ceramic threaded rods, stand-offs and more. Contact us.

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