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CeramTec V 679 Alumina, 99.7%

Category Ceramic , Oxide , Aluminum Oxide
Manufacturer CeramTec North America
Trade Name
Port Shanghai port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF CeramTec V 679 Alumina, 99.7%.pdf
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Material Notes:
Aluminas exhibit good mechanical properties such as hardness, compressive and tensile strength, and elastic modulus. They perform well at elevated temperatures.
Physical Properties Metric English Comments
Density 3.90 g/cc
0.141 lb/in³
DIN EN 623-2
Water Absorption 0.00 %
0.00 %
Open Porosity; DIN EN 623-2
Permeability 0.00
0.00
%, Gas
Weibull Modulus 10
10
DINV ENV 843-5
Mechanical Properties Metric English Comments
Vickers Microhardness 1750
1750
HV1; DINV ENV 843-4
Tensile Modulus 390 GPa
56600 ksi
Young's; DINV ENV 843-2
Flexural Strength 300 MPa
43500 psi
DIN EN 843-1
Compressive Strength 2500 MPa
363000 psi
DIN 51067T1
Poissons Ratio 0.23
0.23
DINV ENV 843-2
Fracture Toughness 5.40 MPa-m½
4.91 ksi-in½
K<sub>IC</sub> (SEVNB); DIN CEN/TS 14425-1
Shear Modulus 159 GPa
23100 ksi
Calculated
Thermal Properties Metric English Comments
CTE, linear 7.50 µm/m-°C

@Temperature 20.0 - 400 °C
4.17 µin/in-°F

@Temperature 68.0 - 752 °F
DIN EN 821-1
8.50 µm/m-°C

@Temperature 20.0 - 1000 °C
4.72 µin/in-°F

@Temperature 68.0 - 1830 °F
DIN EN 821-1
Specific Heat Capacity 0.900 J/g-°C
0.215 BTU/lb-°F
DINV ENV 821-3
Thermal Conductivity 30.0 W/m-K
208 BTU-in/hr-ft²-°F
DIN EN 821-2
Maximum Service Temperature, Air 1500 °C
2730 °F
Maximum Service Temperature, Inert 1500 °C
2730 °F
Component Elements Properties Metric English Comments
Al2O3 99.7 %
99.7 %
Electrical Properties Metric English Comments
Volume Resistivity 1.00e+13 ohm-cm

@Temperature 400 °C
1.00e+13 ohm-cm

@Temperature 752 °F
IEC 672-1
1.00e+14 ohm-cm

@Temperature 20.0 °C
1.00e+14 ohm-cm

@Temperature 68.0 °F
IEC 672-1
Dielectric Constant 9.0

@Frequency 1.00e+6 Hz
9.0

@Frequency 1.00e+6 Hz
IEC 672-1
Dielectric Strength 30.0 kV/mm
762 kV/in
IEC 672-1
Dielectric Loss Index 0.0010

@Frequency 9.00e+9 Hz
0.0010

@Frequency 9.00e+9 Hz
IEC 672-1
Descriptive Properties Value Comments
Ra = Arithmetic Mean Roughness Value (µm) <0.1
Thermal Shock Resistance R1 (K) 79
calculated; R1 = [s? (1-µ)] / (a·E)
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