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CeramTec Rubalit® 708 HP Alumina, 96% (High Performance)

Category Ceramic , Oxide , Aluminum Oxide
Manufacturer CeramTec North America
Trade Name
Port Ningbo port,China
Trade Terms FOB, CFR, CIF
Payment Terms L/C, T/T, Western Union
Download PDF CeramTec Rubalit® 708 HP Alumina, 96% (High Performance).pdf
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Material Notes:
Rubalit® 708 HP (High Performance) has been developed from Rubalit® 708S. This material shares the same chemical composition, is produced on the same plant and using the identical production technologies as in the case of Rubalit® 708S. As a result, proven paste systems can be used and product licensing is a lot easier. The improved Rubalit® 708 HP substrate generation has consistency in terms of thermal cycling resistance, thermal shock resistance, bending strength, surface quality, thermal conductivity even under extreme conditions. The high and consistent surface quality, making the substrate suitable even for thin-film applications, ensures in the case of electrical resistors, a lower noise factor, more stable resistor values, enhanced resistance to electrical shock loads, and greater reliability under laser trimming conditions. As a result, Rubalit® 708 HP substrates combine added integration density with greater power density. Rubalit® 708 HP is ideal for high-performance electronic applications, for hybrids and sensors, in the telecom, medical, aerospace, and consumer goods industries.
Physical Properties Metric English Comments
Density 3.78 g/cc
0.137 lb/in³
DIN EN 993: part 2
Water Absorption 0.00 %
0.00 %
ASTM C373-88
Particle Size 3.0 - 5.0 µm
3.0 - 5.0 µm
Medium Grain (d50)
Mechanical Properties Metric English Comments
Modulus of Elasticity 340 GPa
49300 ksi
DIN V ENV 843-2
Flexural Strength 500 MPa
72500 psi
Bending Strength; Double-Ring (40 mm / 20 mm / 0.63 mm); DIN EN 1288
Thermal Properties Metric English Comments
CTE, linear 6.80 µm/m-°C

@Temperature 20.0 - 300 °C
3.78 µin/in-°F

@Temperature 68.0 - 572 °F
DIN 51045
7.30 µm/m-°C

@Temperature 20.0 - 600 °C
4.06 µin/in-°F

@Temperature 68.0 - 1110 °F
DIN 51045
8.00 µm/m-°C

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

@Temperature 68.0 - 1830 °F
DIN 51045
Specific Heat Capacity 0.780 J/g-°C
0.186 BTU/lb-°F
ASTM-E1269
Thermal Conductivity 24.0 W/m-K
167 BTU-in/hr-ft²-°F
DIN EN 821: part 2; Laserflash
Component Elements Properties Metric English Comments
Al2O3 96 %
96 %
Electrical Properties Metric English Comments
Volume Resistivity 1.00e+8 ohm-cm

@Temperature 600 °C
1.00e+8 ohm-cm

@Temperature 1110 °F
IEC 345
1.00e+11 ohm-cm

@Temperature 400 °C
1.00e+11 ohm-cm

@Temperature 752 °F
IEC 345
1.00e+12 ohm-cm

@Temperature 200 °C
1.00e+12 ohm-cm

@Temperature 392 °F
IEC 345
1.00e+13 ohm-cm

@Temperature 20.0 °C
1.00e+13 ohm-cm

@Temperature 68.0 °F
IEC 345
Dielectric Constant 9.8

@Frequency 1.00e+6 Hz
9.8

@Frequency 1.00e+6 Hz
IEC 250
9.9

@Frequency 1.00e+9 Hz
9.9

@Frequency 1.00e+9 Hz
IEC 250
Dielectric Breakdown >= 6250 V

@Thickness 0.250 mm
>= 6250 V

@Thickness 0.00984 in
DIN EN 60243
>= 10000 V

@Thickness 0.500 mm
>= 10000 V

@Thickness 0.0197 in
DIN EN 60243
Descriptive Properties Value Comments
Color White
Ra = Arithmetic Mean Roughness Value (µm) Profilometer (cutoff 0.8 mm); DIN ISO 4287
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