CeramTec 614/698 Alumina, 96%

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CeramTec 614/698 Alumina, 96%
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:	614/698 (96%) is a high-strength alumina with good mechanical properties, as well as good wear and chemical resistance. It also features excellent electrical properties. 614 is white; 698 is pink.
Key Words:	Al2O3, aluminum oxide
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Physical Properties	Metric	English	Comments

Density	3.70 g/cc	0.134 lb/in³	DIN EN 623-2 / ASTM-C373 / ASTM-C20
Water Absorption	0.00 %	0.00 %	DIN EN 623-2 / ASTM-C373

Mechanical Properties	Metric	English	Comments
Vickers Microhardness	1200	1200	HV 0.5; DINV ENV 843-4
Tensile Strength at Break	172 MPa	24900 psi	ACMA Test #4 / DIN EN 843-1
Tensile Modulus	276 GPa	40000 ksi	Young's; DINV ENV 843-2 / ASTM-F417
Flexural Strength	276 MPa	40000 psi	20 x 40 mm
Compressive Strength	2414 MPa	350100 psi	ASTM C-773-88 / DIN 51067T1
Poissons Ratio	0.24	0.24	DINV ENV 843-2
Fracture Toughness	2.70 MPa-m½	2.46 ksi-in½	DIN 51109
Shear Modulus	128 GPa	18600 ksi

Electrical Properties	Metric	English	Comments
Volume Resistivity	680000 ohm-cm @Temperature 900 °C	680000 ohm-cm @Temperature 1650 °F
	7.30e+7 ohm-cm @Temperature 500 °C	7.30e+7 ohm-cm @Temperature 932 °F
	2.00e+13 ohm-cm @Temperature 100 °C	2.00e+13 ohm-cm @Temperature 212 °F	IEC 672-1
	>= 1.00e+14 ohm-cm @Temperature 25.0 °C	>= 1.00e+14 ohm-cm @Temperature 77.0 °F	ASTM-D257
Dielectric Constant	9.3 @Frequency 1e+6 Hz	9.3 @Frequency 1e+6 Hz	IEC 672-1 / ASTM-C150
Dielectric Strength	8.268 kV/mm	210.0 kV/in	6.35 mm (1/4") IEC 672-1
Dissipation Factor	0.00030 @Frequency 1e+6 Hz	0.00030 @Frequency 1e+6 Hz
	0.00090 @Frequency 1e+10 Hz	0.00090 @Frequency 1e+10 Hz
	0.00090 @Frequency 2.50e+10 Hz	0.00090 @Frequency 2.50e+10 Hz
Dielectric Loss Index	0.0028 @Frequency 1e+6 Hz	0.0028 @Frequency 1e+6 Hz	IEC 672-1 / ASTM-D149,150

Thermal Properties	Metric	English	Comments
CTE, linear	7.90 µm/m-°C	4.39 µin/in-°F	DIN EN 821-1
	6.40 µm/m-°C @Temperature 20.0 - 200 °C	3.56 µin/in-°F @Temperature 68.0 - 392 °F
	7.50 µm/m-°C @Temperature 20.0 - 600 °C	4.17 µin/in-°F @Temperature 68.0 - 1110 °F	ASTM-C373
	8.00 µm/m-°C @Temperature 20.0 - 1000 °C	4.44 µin/in-°F @Temperature 68.0 - 1830 °F
Specific Heat Capacity	0.900 J/g-°C @Temperature 100 - 200 °C	0.215 BTU/lb-°F @Temperature 212 - 392 °F	DINV ENV 821-3
Thermal Conductivity	35.2 W/m-K	244 BTU-in/hr-ft²-°F	DIN EN 821-2 / ASTM-C408
Maximum Service Temperature, Air	1500 °C	2730 °F

Component Elements Properties	Metric	English	Comments
Al2O3	96 %	96 %

Descriptive Properties
Color	White/Pink
Te Value (°C)	840
Thermal Shock Resistance R1 (K)	200		Hasselman (Experimental)

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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CCERA930 / 107530

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