CoorsTek AD-85 Alumina (nom. 85% Al 2 O 3 )

Login to see your most recently viewed materials here. Or if you don't have an account with us yet, then click here to register.

CoorsTek AD-85 Alumina (nom. 85% Al₂O₃)
Categories:	Ceramic; Oxide; Aluminum Oxide
Material Notes:	Thermal Shock Delta T_c = 300°C - Thermal shock tests are performed by quenching samples in water from different elevated temperatures. Delta T_c is the change in temperature which results in a sharp decrease in the flexural strength of the sample. Data Provided by the manufacturer, Coors Ceramics Co.
Key Words:	Al2O3; aluminum oxide, alumina
Vendors:	No vendors are listed for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
Printer friendly version Download as PDF Download to Excel (requires Excel and Windows) Export data to your CAD/FEA program Add to Folder:

Physical Properties	Metric	English	Comments

Density	3.42 g/cc	0.124 lb/in³	ASTM C20
Water Absorption	0.00 %	0.00 %	ASTM C373
Particle Size	6.0 µm	6.0 µm	Average Crystal Size - Thin Section Test

Mechanical Properties	Metric	English	Comments
Knoop Microhardness	9.4	9.4	1000 g load
Hardness, Rockwell 45 N	73	73	GPa
Tensile Strength, Ultimate	155 MPa	22500 psi	ACMA Test #4
Modulus of Elasticity	221 GPa	32100 ksi	ASTM C848
Flexural Strength	296 MPa	42900 psi	ASTM F417
Compressive Strength	1930 MPa	280000 psi	ASTM C773
Poissons Ratio	0.22	0.22	ASTM C848
Fracture Toughness	3.00 - 4.00 MPa-m½	2.73 - 3.64 ksi-in½	Notched Beam
Shear Modulus	91.0 GPa	13200 ksi	Calculated

Electrical Properties	Metric	English	Comments
Electrical Resistivity	>= 1.00e+14 ohm-cm	>= 1.00e+14 ohm-cm	ASTM D1829
	4.00e+8 ohm-cm @Temperature 500 °C	4.00e+8 ohm-cm @Temperature 932 °F	ASTM D1829
Dielectric Constant	8.2 @Frequency 1e+6 Hz	8.2 @Frequency 1e+6 Hz
Dielectric Strength	9.40 kV/mm	239 kV/in	ac; ASTM D116
Dielectric Loss Index	0.00090 @Frequency 1e+6 Hz	0.00090 @Frequency 1e+6 Hz	ASTM D2520

Thermal Properties	Metric	English	Comments
CTE, linear	7.20 µm/m-°C @Temperature 25.0 - 1000 °C	4.00 µin/in-°F @Temperature 77.0 - 1830 °F	ASTM C372
Specific Heat Capacity	0.920 J/g-°C	0.220 BTU/lb-°F	ASTM E1269
Thermal Conductivity	16.0 W/m-K	111 BTU-in/hr-ft²-°F	ASTM C408
Maximum Service Temperature, Air	1400 °C	2550 °F	No Load

Component Elements Properties	Metric	English	Comments
Al2O3	85 %	85 %

Descriptive Properties
Color	White

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.

Users viewing this material also viewed the following:
Corundum, Aluminum Oxide, Alumina, 99.9%, Al₂O₃
Alumina, alpha Al2O3, 99.5%
CoorsTek AD-998 Alumina(nom. 99.8% Al₂O₃)
Overview - Alumina, 98%, Al₂O₃
CoorsTek AD-90 Alumina (nom. 90% Al₂O₃)

CA7A / 376

	Advertise with MatWeb!
	Data sheets for over 180,000 metals, plastics, ceramics, and composites.
	HOME • SEARCH • TOOLS • SUPPLIERS • FOLDERS • ABOUT US • FAQ • LOG IN

System Message