Alumina Ceramic Insulator Rings Seal Rings UPT-ALC024 manufacturer from China Xiamen Unipretec Advanced Materials Co.,Ltd

Alumina Ceramic Insulator Rings Seal Rings

Price:	1.0~5.0 USD
Payment Terms:	T/T,WU
Place of Origin:	Fujian, China (Mainland)


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Product Detail

Model No.: UPT-ALC024

Production Capacity: 200000pcs/year

Delivery Date: 40days

Material: Alumina

Color: White

Young's Modulus: 280Gpa

Compressive Strength: 2000Mpa

Thermal shock resistance: 220ΔT(C°)

Means of Transport: Ocean,Air

Packing: wooden box / carton box

Brand Name: UNIPRETEC

Purity: 95%

Density: 3.65g/cm3

Flexural Strength: 280Mpa

Thermal Conductivity: 18-25W/(m•K)

Max. Working Temperature: 1500℃

Unipretec can supply Alumina Ceramics / Zirconia Ceramics / Machinable Glass Ceramics / Boron Nitride / Silicon Nitride.

1.Material: Alumina Ceramic, Al2O3 Ceramic, Aluminum Oxide

2.Purity: 95%

3.Color: White

4.Product Feture:

*Good thermal conductivity

*Good strength and hardness

*Good resistance to wear and corrosion

*Temperature resistance up to 1500°C

Alumina (aluminum oxide) is the most important, widely used and cost effective oxide ceramic material. The technical alumina ceramics contain at least 80% of aluminum oxide (AL2O3). Small amounts of silica (SiO2), magnesia (MgO) and zirconia (ZrO2) may be added to alumina ceramics. Addition of zirconia to alumina ceramic results in considerable increase of the material fracture toughness.

Typical Alumina characteristics include:

*High mechanical strength (flexural strength) and hardness;

*High wear resistance;

*High resistance to chemical attacks of strong acids and alkali even at high temperatures;

*High stiffness;

*Excellent insulating properties;

*Low coefficient of thermal expansion;

*Good fracture toughness;

*Good thermal conductivity;

*Good biocompatibility.

Characteristics	Unit	95 Al2O3	99 Al2O3	ZrO2	GPSi3N4	BN	Glass Ceramic
Crystal Structure	-	hexagonal	hexagonal	tetragonal	hexagonal	hexagonal	-
Color	-	white	ivory	white	gray	white	white
Density	g/cm3	3.65	3.88	5.95	3.22	2.26	2.55
Water Absorption	%	0	0	0	0	0.0-1.0	0
Young's Modulus	Gpa	280	350	205	295	670	65
Vickers Hardness	Gpa	14	20	12	18-20	-	-
Flexural Strength @R.T.	Mpa	280	300	900	650	51	100
Compressive Strength @R.T.	Mpa	2000	2500	2200	2200	230	500
Thermal Conductivity @R.T.	W/(m*k)	18-25	30	2.2	25	20	1.7
Thermal shock resistance	Δ(℃)	220	180-200	280-350	450-650	>1500	25-100
Max. Working Temperature @R.T.	℃	1500	1700	850	1200	960	800
Volume Resistivity @R.T.	Ω*cm	>10^15	>10^14	>10^12	>10^14	10^13	10^16
Dielectric Constant (1 MHz @R.T. )	-	9.5	9.8	26	8.2	4.08	6.02
Dielectric Strength	kV/mm	16	22	-	16	375	40

Application of Al2O3:

Aluminum ceramics are widely used in electronics and electrical engineering, metallurgical processes, chemical technologies, medical technologies, mechanical engineering, military equipment.

Aluminum ceramics are used for manufacturing insulators, capacitors, resistors, furnace tubes, sealing refractory parts, foundry shapes, wear pads, thermocouple protection tubes, cutting tools and polishing/grinding powders, ballistic armor, laboratory equipment, bio-ceramic parts for orthopedic and dental surgery, bearings.

Alumina Ceramic Insulator Rings Seal Rings

About UniPreTec

UniPreTec provides high-performance ceramic products in Alumina, Zirconia, Boron Nitride, Machinable Glass Ceramic, Silicon Nitride and further special materials. Along with these materials, we offer several machining from which to choose such as cutting, drilling, sawing, turning, grinding, polishing etc.. Furthermore, our technologies and equipments allow us to provide various and flexible forming processes, like dry pressing, isostatic pressing, extrusion, injection moulding and slip casting.