Alumina Ceramics

Alumina Ceramics is the most widely used fine ceramics material. This material has superb material characteristics such as high electrical insulation, high mechanical strength, high wear and chemical resistance.

Ortech provides state-of-the-art technical ceramic manufacturing by the most cost-effective processes. Ortech maintains efficient manufacturing facilities that support quick-turn prototype development and high volume production.

Manufacturing Options
• Injection molding
• Roll compacting
• Extruding
• Co-firing
• Isostatic pressing
• Dry pressing
• Hot pressing
• Tape casting
• Slip casting

Advanced Finishing Services
• Precision grinding and lapping
• Laser machining
• Engineering design and support
• Metallizing
• Alumina Ceramics-to-metal brazing
• Specialized coatings
• Threaded components
• Precision motion components
• Complex cleanroom assemblies

COMPOSITION	UNIT	AL-960	AL-975	AL-980	AL-995
AL₂O₃	%	96	97.5	98	99.7
TENSILE	Kpsi	30	30	30	32
FLEXURAL	Kpsi	55	55	55	60
COMPRESSIVE	Kpsi	300	300	300	330
DENSITY	g/cc	3.67	3.72	3.80	3.90
POROSITY	-	0	0	0	0.00
COLOR	-	WHITE	WHITE	WHITE	IVORY
HARDNESS	MOH’S SCALE	9	9	9	9
THERMAL CONTDUCT	cal/cm² cm/sec/c°	0.049	0.05	0.052	0.055
C.O.T.E.	In / In°C (x10⁷)	75	76	77	78
MAX WK TEMP	-	1600	1650	1650	1700
DIELECTRIC STRENGTH	D.C. Volts Mil @ 0.100" Thick	230	230	240	250
VOLUME RESISTIVITY	Ohm-cm (x10¹²)	2	3.1	3.2	3.5
DIELECTRIC CONSTANT	-	9	9.4	9.6	9.7
DISSIPATION FACTOR	-	0.0003	0.0002	0.0001	0.0001
LOSS FACTOR	-	0.028	0.013	0.011	0.009

Standard Alumina Ceramics Products

Alumina Tubes

Alumina Rods

Alumina Plates

Ceramic Washers


(916) 549-9696 Email: info@ortechceramics.com OrTech, Inc. 2543 Sierra Blvd Sacramento CA 95825		Home \| Who we are \| Capabilities \| Materials \| Products \| Quote form \| Site Map \| Contact us Ceramic Tubes \| Ceramic Rods \| Ceramic Plates \| Armor Plates \| Ceramic Fish Spine Beads Ceramic Substrates \| Ceramic Seal \| Ceramic Bearing and Rollers \| Thermocouple Protection Tube \| Metallized Ceramic \| Ceramic Screws \| Ceramic washers \| Alumina Insulators \| Ceramic Ball \| Link \| Copyright © 2007 Ortech, Inc. All rights reserved.