| CoorsTek provides state-of-the-art materials manufactured by the most cost-effective processes. CoorsTek maintains efficient, large-scale manufacturing facilities that support quick-turn prototype development and high-volume production. Wide Variety of Manufacturing Options • Injection molding • Roll compacting • Extruding • Co-firing • Isostatic pressing • Dry pressing • Hot pressing • Tape casting • Slip casting Advanced Finishing Services • Engineering design and support • Precision grinding and lapping • Laser machining • Metallizing • Ceramic-to-metal brazing • Specialized coatings • Threaded components • Precision motion components • Complex cleanroom assemblies CoorsTek Advanced Alumina Properties CoorsTek is uniquely capable of providing advanced materials and manufacturing technologies. Call our specialists at +1 303-271-7000 for help selecting the best materials and design for manufacturability. | | | Density | gm/cc | ASTM-C 20 | 3.42 | 3.60 | 3.70 | 3.72 | 3.81 | 3.80 | | Crystal Size, Average | MICRONS | THIN-SECTION | 6.0 | 4.0 | 12.0 | 6.0 | 6.0 | 6.0 | | Color | * | * | White | White | White | White | Brown | White | | Flexural Strength (MOR), 20° C | MPa (psi X 103) | ASTM-F417 | 296 (43) | 338 (49) | 352 (51) | 358 (52) | 385 (56) | 375 (54) | | Elastic Modulus, 20° C | GPa (psi X 106) | ASTM-C848 | 221 (32) | 276 (40) | 303 (44) | 303 (44) | 354 (50) | 350 (51) | | Poisson's Ratio, 20° C | *ASTM-C848 | 0.22 | 0.22 | 0.21 | 0.21 | 0.26 | 0.22 | 0.22 | | Compressive Strength, 20° C | MPa (psi X 103) | ASTM-C773 | 1930 (280) | 2482 (360) | 2103 (305) | 2068 (300) | 2450 (375) | 2500 (363) | | Hardness | GPa | Rockwell 45N | 73 | 75 | 78 | 78 | 81 | 82 | | Fracture Toughness, Klc | MPa.m½ | Notched Beam | 3 – 4 | 3 – 4 | 4 – 5 | 4 – 5 | 3 – 4 | 4 – 5 | | Thermal Conductivity, 20° C | W/m °K | ASTM-C408 | 16.0 | 16.7 | 22.4 | 24.7 | 24.7 | 27.5 | | CTE, 25-1000°C | 1X 10-6/ °C | ASTM-C372 | 7.2 | 8.1 | 8.2 | 8.2 | 8.2 | 8.2 | | Thermal Shock Resistance, ΔTc | °C | NOTE 3 | 300 | 250 | 250 | 250 | 250 | 200 | | Maximum Use Temperature | °C | NO-LOAD COND. | 1400 | 1500 | 1700 | 1700 | 1700 | 1700 | | Volume Resistivity, 25° C | Ohm-cm | ASTM-D1829 | >1014 | >1014 | >1014 | >1014 | * | >1014 | | Volume Resistivity, 500° C | Ohm-cm | ASTM-D1829 | 4 x 108 | 4 x 108 | 4 x 109 | 4 x 109 | * | 2 x 1010 | | Volume Resistivity, 1000° C | Ohm-cm | ASTM-D1829 | * | 5 x 105 | 5 x 105 | 1 x 106 | * | 2 x 106 | | | | Density | gm/cc | ASTM-C 20 | 3.90 | 3.90 | 3.92 | 3.93 | 3.94 | | Crystal Size, Average | MICRONS | THIN-SECTION | 6.0 | 6.0 | 6.0 | 6.0 | 3.0 | | Color | * | * | Ivory | Ivory | Ivory | Ivory | Ivory | | Flexural Strength (MOR), 20° C | MPa (psi X 103) | ASTM-F417 | 379 (55) | 379 (55) | 375 (54) | 390 (58) | 414 (60) | | Elastic Modulus, 20° C | GPa (psi X 106) | ASTM-C848 | 370 (54) | 370 (54) | 370 (54) | 370 (54) | 386 (56) | | Poisson's Ratio, 20° C | *ASTM-C848 | 0.22 | 0.22 | 0.22 | 0.22 | 0.24 | | | Compressive Strength, 20° C | MPa (psi X 103) | ASTM-C773 | 2600 (377) | 2600 (377) | 2500 (363) | 2700 (390) | 2930 (425) | | Hardness | GPa | Rockwell 45N | 83 | 83 | 83 | 83 | 85 | | Fracture Toughness, Klc | MPa.m½ | Notched Beam | 4 – 5 | 4 – 5 | 4 – 5 | 4 – 5 | 4 - 5 | | Thermal Conductivity, 20° C | W/m °K | ASTM-C408 | 30.0 | 30.0 | 30.0 | 30.0 | 31.0 | | CTE, 25-1000°C | 1X 10-6/ °C | ASTM-C372 | 8.2 | 8.2 | 8.2 | 8.2 | 8.2 | | Thermal Shock Resistance, ΔTc | °C | NOTE 3 | 200 | 200 | 200 | 200 | 200 | | Maximum Use Temperature | °C | NO-LOAD COND. | 1750 | 1750 | 1750 | 1750 | 1750 | | Volume Resistivity, 25° C | Ohm-cm | ASTM-D1829 | >1014 | >1014 | >1014 | >1014 | >1014 | | Volume Resistivity, 500° C | Ohm-cm | ASTM-D1829 | 2 x 1010 | 2 x 1010 | 2 x 1010 | 1 x 1011 | 3.3 x 1012 | | Volume Resistivity, 1000° C | Ohm-cm | ASTM-D1829 | 2 x 106 | 2 x 106 | 2 x 106 | 3 x 106 | 1.1 x 107 | *Data not available Note: The chart is intended to illustrate typical properties. Engineering data is representative. Property values vary somewhat with method of manufacture, size, and shape of part. This data is not to be construed as absolute and does not construe a warranty for which we assume legal responsibility. PlasmaResist and PlasmaPure are trademarks of CoorsTek, Inc. |