Aluminium Oxide Ceramic

Aluminium Oxide Ceramic is the most common use in the engineering ceramic, offering excellent excellent electrical insulation properties together with high hardness and good wear resistance features. Aluminium Oxide Ceramic is general white but may also be pink or ivory, the color is derived from the sintering additives or impurities in the raw material.

Features of the Aluminium Oxide Ceramic

High Hardness: The hardness can be up to 1500.
High Heat Resistance: aluminium oxide ceramichas excellent thermal stability. Which means it can be widely used in areas where high temperature environment.
Good Wear Resistance: aluminium oxide ceramic is a good choice for wear parts.
High Corrosion Resistance: it is insoluble in water and only slightly soluble in the strong acid and alkaline solutions. Good chemical stability leads this material a good features of high corrosion resistance.

Data sheet of Technical ceramics

Property	Units	Material
Property	Units	99.5% alumina	99% alumina	95% alumina	ZrO2 (Y-TZP)	ZrO2 (TTZ)
Density	g/cm³	≥3.85	≥3.80	≥3.60	≥5.95	≥5.72
Water absorption	%	0	0	0	0	0
Hardness	HV	1700	1700	1500	1300	900
Flexural strength	Mpa	≥379	≥338	≥320	≥1200	≥1200
Compressive strength	Mpa	≥2240	≥2240	≥2000	≥1990	1750
Fracture toughness	Mpa m^1/2	4-5	4-5	3-4	6.5-8	11
Max. service temperature	ºC	1675	1600	1450	1000
CTE	1×10 ^-6/ºC	6.5~8.0	6.2~8.0	5.0~8.0	8.0~9.5	10.2
Thermal shock	T(ºC)	≥250	≥200	≥220	≥300	350
Thermal conductivity(25ºC)	W/m.k	30	29	24	3	3
Volume resistivity	ohm.cm
25ºC		>1 x 10¹⁴	>1 x 10¹⁴	>1 x 10¹⁴	>1 x 10¹¹	>1 x 10¹¹
300ºC		1 x 10 ¹²	8 x 10¹¹	10¹² -10¹³	1 x 10 ¹⁰	1 x 10 ¹⁰
500ºC		5 x 10 ¹⁰	2 x 10⁹	1 x 10⁹	1 x 10⁶	1 x 10⁶
Insulation strength	KV/mm	19	18	18	17	20
Dielectric constant(1Mhz)	(E)	9.7	9.5	9.5	29	28

Some Application of Aluminium Oxide Ceramic

We have in-housing comprehensive manufacturing types of equipment, including forming, sintering, CNC machining, precision grinding, laser cutting and so on, it helps us to control the quality very well. Also, it greatly benefits cost control. Our ceramic parts widely used in many field like electronic industrial, automotive industry, mechanical industry, engineer industry. Here below are some samples pictures of aluminium ceramic parts for your reference, we also welcome custom making process.

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Applications of Alumina Ceramic Parts

Zirconia Ceramic Manufacturing Company

Aluminium Oxide Ceramic

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