Aluminium Oxide, Al2O3 is a major engineering material. It offers a combination of good mechanical properties and electrical properties leading to a wide range of applications.

Alumina can be produced in a range of purities with additives designed to enhance properties. A wide variety of ceramic processing methods can be applied including machining or net shape forming to produce a wide variety of sizes and shapes of component. In addition it can be readily joined to metals or other ceramics using metallising and brazing techniques.

Alumina based ceramics are by far the largest range of advanced ceramics made by Morgan Technical Ceramics. Due to the important combination of properties, we have thoroughly researched the behaviour and characteristics of our Alumina products to give you the best possible component.

Typical Alumina characteristics include:

* Good strength and stiffness
* Good hardness and wear resistance
* Good corrosion resistance
* Good thermal stability
* Excellent dielectric properties (from DC to GHz frequencies)
* Low dielectric constant
* Low loss tangent

Key Features of Some Advanced Technical Ceramics

Characteristics	Unit	95 Al2O3	99 Al2O3	ZrO2	SSiC	B4C	Si3N4
Color		white	ivory	white	black	black	gray
Density	g/cm3	3.65	3.88	6.05	3.12	2.51	3.25
Young's Modulus	Gpa	280	350	205	400	420	310
Vickers Hardness	Gpa	14	20	12	25	36	22
Flexural Strength	Mpa	280	300	900	400	370	850
Compressive Strength	Mpa	1700	2000	2500	2200	2900	2800
Thermal Conductivity	W/(m?K)	25	30	2.2	100	35-40	27
Thermal shock resistance	ΔT(C°)	220	180-200	400	350	130	450-650
Max. Working Temperature	C°	1500	1700	850	1500	1500	1200
Volume Resistivity ( 20 C° )	Ω?cm	>10^15	>10^14	>10^12	>10^6	_	>10^14

Typical Alumina applications include:

* Seal rings
* Medical prostheses
* Laser tubes
* Electronic substrates
* Ballistic armour
* Thermocouple tubes
* Electrical insulators
* Grinding media
* Threadguides
* Wear components