Material Properties

Additive Production Formulations for OEM Ceramic Components

Production formulations for additive are developed to address the varied environmental extremes in which OEM ceramic components are commonly used. The table below represents the range of properties for the materials most frequently specified by Ceramco’s additive manufacturing customers. Other additive materials and formulations are available fulfilling many other unique ceramic component requirements.

Property Unit Alumina Zirconia
Toughened
Alumina (ZTA)
Zirconia Alumina
Toughened
Zirconia (ATZ)
Silicon Nitride
Physical Properties
Chemical Formula - - - Al2O3 Zr-Al2O3 ZrO2/Y2O3 Al2O3-ZrO2 Si3N4
Purity / Composition % 99.8 - 99.9 20/80 3 - 8 mol% 80/20 92
Density g/cm3 3.90 - 3.96 4.00 - 4.38 5.95 - 6.05 >5.2 3.17 - 3.29
Mechanical Properties
Compressive Strength MPa 2200 - 2420 2060 - 2350 2070 - 2300 (a) >3500
4 Point MOR MPa 395 - 430 450 - 490 940 - 950 1094 690 - 760
Young's Modulus GPa 300 (a) 200 - 205 220 290-300
Fracture Toughness MPa*m1/2 4 - 5 5 - 7 10 - 13 (a) 6 - 7
Hardness HV10 1450 - 1672 (a) 1250 - 1285 (a) 1450 - 1550
Thermal Properties
Maximum Temperature °C 1650° 1650° 1500° (a) 1200°
CTE @ 20°C ppm/K 5.00 - 8.00 7.00 - 8.00 9.00 - 10.00 7.94 3.00 - 3.30
Thermal Conductivity W/(m*K) 23.0 - 37.0 20.0 - 21.0 2.5 - 3.3 5.4 28.0 - 30.0
Electrical Properties
Resistivity Ώ*cm ~1014 (a) >1010 (a) 1200
Permittivity - - - 9.5@7.5GHz (a) 27.6@3GHz (a) 8.6@10GHz
Dielectric Loss δ - - - 8*10-5@7.5GHz (a) 2.5*10-3@3GHz (a) 10*10-3@10GHz

(a) Property in testing.

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