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Astro Met AmAlOx 68 Alumina - Aluminum Oxide

Category Ceramic , Oxide , Aluminum Oxide
Manufacturer Astro Met Inc.
Trade Name AmAlOx
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF Astro Met AmAlOx 68 Alumina - Aluminum Oxide.pdf
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Material Notes:
General Description:AmAlOx 68 alumina (Astro Met Aluminum Oxide) is a high purity 99.8% aluminum oxide (alumina) ceramic which has been developed and optimized for maximum wear resistance and corrosion resistance. A high density, diamond like hardness, fine grain structure and superior mechanical strength are the unique properties that make AmAlOx 68 alumina the material of choice for a wide range of demanding applications. AmAlOx 68 alumina provides a cost-effective, engineered material solution in applications that require the optimum in wear resistance, corrosion resistance, high temperature stability, low thermal expansion, high stiffness to weight ratio, high dielectric strength and biocompatibility.
Physical Properties Metric English Comments
Bulk Density 3.93 g/cc
0.142 lb/in³
Water Absorption 0.00 %
0.00 %
Particle Size 4.0 µm
4.0 µm
Mechanical Properties Metric English Comments
Hardness, Vickers 2017
2017
Modulus of Elasticity 393 GPa
57000 ksi
Flexural Strength 382 MPa
55400 psi
Poissons Ratio 0.22
0.22
Fracture Toughness 5.00 MPa-m½
4.55 ksi-in½
Shear Modulus 161 GPa
23400 ksi
Calculated
Thermal Properties Metric English Comments
CTE, linear 8.20 µm/m-°C

@Temperature 25.0 - 1000 °C
4.56 µin/in-°F

@Temperature 77.0 - 1830 °F
Thermal Conductivity 37.5 W/m-K
260 BTU-in/hr-ft²-°F
Maximum Service Temperature, Air 1700 °C
3090 °F
no load
Component Elements Properties Metric English Comments
Al2O3 99.8 %
99.8 %
Electrical Properties Metric English Comments
Dielectric Constant 9.7
9.7
Dielectric Strength 9.06 kV/mm
230 kV/in
ac-volts/mil
Descriptive Properties Value Comments
Color White
Gas Permeation, % 0
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