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Xiamen Unipretec Advanced Materials Co.,Ltd
Xiamen Unipretec Advanced Materials Co.,Ltd  

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High Temperature Alumina Ceramic Crucibles for Lab Equipment 

Price: 8.0~10.0 USD 
Payment Terms: T/T,WU;Paypal 
Place of Origin: Fujian, China (Mainland) 
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Product Detail

Model No.: UPT-ALC017
Production Capacity: 100000pcs/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.

Alumina is the most mature of the engineering ceramics, offering excellent electrical insulation properties together with high hardness and good wear resistance but relatively low strength and fracture toughness. 

During the prodcution, small amounts of silica (SiO2), magnesia (MgO) and zirconia (ZrO2) may be added to alumina ceramics. The applications vary with the purity of Alumina. 99% Alumina Ceramics are mostly used for high temperature crucibles, kiln furniture, special abrasion resistant parts, such as ceramic bearings, ceramic sealings or faucet discs; 95% Alumina Ceramics are usually applied for corrosion-resitant components or wear proof parts; 85% Alumina Ceramis can be metallized with metals like molybdenum, niobium, tantalum to use for electric vacuum devices. 

Properties of Alumina Ceramics 
Alumina has a high melting point, high hardness and high mechanical strength, although mechanical strength is reduced at temperatures above 1000° C. Due to the relatively large coefficient of thermal expansion, thermal shock resistance is reduced. Alumina is an electrically insulating material, with a high electrical resistivity, increasing with purity. Good chemical stability of alumina, leads to a high corrosion resistance. It is insoluble in water and only slightly soluble in strong acid and alkaline solution. 

CharacteristicsUnit95 Al2O399 Al2O3ZrO2GPSi3N4BNGlass Ceramic
Crystal Structure-hexagonalhexagonaltetragonalhexagonalhexagonal-
Color-whiteivorywhitegraywhitewhite
Densityg/cm33.653.885.953.222.262.55
Water Absorption%00000.0-1.00
Young's ModulusGpa28035020529567065
Vickers HardnessGpa14201218-20--
Flexural Strength @R.T.Mpa28030090065051100
Compressive Strength @R.T.Mpa2000250022002200230500
Thermal Conductivity @R.T.W/(m*k)18-25302.225201.7
Thermal shock resistanceΔ(℃)220180-200280-350450-650>150025-100
Max. Working Temperature @R.T.150017008501200960800
Volume Resistivity @R.T.Ω*cm>10^15>10^14>10^12>10^1410^1310^16
Dielectric Constant (1 MHz @R.T. )-9.59.8268.24.086.02
Dielectric StrengthkV/mm1622-1637540


Various Application of Alumina Ceramics 
1. Seal rings 
2. Medical prostheses 
3. Laser tubes 
4. Electronic substrates 
5. Ballistic armour 
6. Thermocouple tubes 
7. Electrical insulators 
8. Grinding media 
9. Threadguides 
10. Wear components 

High Temperature Alumina Ceramic Crucibles for Lab Equipment
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.

Mr. Tony Huang
skype Mr. Tony Huang
sale manager
Tel: 86-592-5510319
Fax: 86-592-5510320
Mobile: 138 6044 6139
Contact to this supplier

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Company Info

Xiamen Unipretec Advanced Materials Co.,Ltd [China (Mainland)]


Business Type:Manufacturer, Trading Company, Distributor/Wholesaler
City: Xiamen
Province/State: Fujian
Country/Region: China (Mainland)

Tony Huang:   skype

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