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Yixing Minghao Special Ceramic Technology Co., Ltd.
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Large Size 95% Alumina Ceramic Insulator High Voltage Resistant

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Large Size 95% Alumina Ceramic Insulator High Voltage Resistant

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Brand Name : MH

Model Number : MH01

Certification : ISO9001 ROHS

Place of Origin : CHINA

MOQ : 100 pcs

Price : USD 1-5/PCS

Payment Terms : L/C, T/T, Western Union

Supply Ability : 5000 PCS WEEK

Delivery Time : 15-20DAYS

Packaging Details : Export carton

Material : 95% alumina ceramic

Color : White

Density : 3.6g/cm³

Working Temperature : 1500℃

OEM,ODM : Acceptable

Origin : China

MOQ : 100 pcs

Package : Carton

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Large Size High Voltage Resistant 95% Alumina Ceramic Insulator

Aluminium Oxide, Al2O3 is the most widely applied and cost effective technical ceramic material. It offers a combination of superior mechanical strength and electrical properties, wear resistance and corrosion resistance. The maximum working temperature is up to 1700 °C with relatively high thermal conductivity. It is also an electrically insulating material with a high electrical resistivity. The good corrosion resistance makes it insoluble in water and slightly soluble in strong acid and alkaline solution.

Alumina ceramics are classified into high-purity type and ordinary type.
The high-purity alumina ceramics have a Al2O3 content of 99.9% or more. Since the sintering temperature is as high as 1650-1990 ° C and the transmission wavelength is 1 to 6 μm, the molten glass is generally used to replace the platinum crucible; alkali-resistant metal corrosion is used as a sodium lamp; it can be used as an integrated circuit substrate and high-frequency insulation material in the electronics industry.

Properties Unit Steatite ceramic 95% Al2O3 99% Al2O3 Zirconia Ceramic
Density g/cm³ 2.8 3.6 3.8 5.6
Flexural strength Mpa 145 300 300 354
Max Working Temperature 1100 1400 1600 1400
Sintering temperature 1350 1700 1750 1550
Heat resistance T(℃) 200 220 200 350
Hardness Gpa 5.7 7 10.7 12.3
Elastic modulus Gpa 120 275 320 205
Poissons ratio - 0.21 0.22 0.22 0.30
Linear expansion coefficient x 10-6/℃ 7.9 7.1 7.8 9
Insulation breakdown Intensity KT/mm 10 16 18 15
Thermal conductivity w/(m.k) 2.5 20 25 2.5
Specific Heat *10-3J/(kg*K) 0.75 0.78 0.78 0.4

Large Size 95% Alumina Ceramic Insulator High Voltage Resistant

Large Size 95% Alumina Ceramic Insulator High Voltage ResistantLarge Size 95% Alumina Ceramic Insulator High Voltage ResistantLarge Size 95% Alumina Ceramic Insulator High Voltage Resistant

Large Size 95% Alumina Ceramic Insulator High Voltage Resistant

Large Size 95% Alumina Ceramic Insulator High Voltage ResistantLarge Size 95% Alumina Ceramic Insulator High Voltage Resistant


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