DO YOU KNOW WHAT ALUMINA CERAMIC ARE?
Alumina ceramic is a kind of alumina as the main ceramic material,used in thick film integrated circuits.Alumina have good conductivity,mechanical strength and high temperature resistance.It should be noted that ultrasonic washing is needed.Alumina ceramics have a veriety of uses to meet the needs of daily use and specical properties.95 alumina porcelain is mainly used as waer-resisting parts.
Advantage:
1.Purity:92%, 95%, 96%, 99%, 99.7%2.Good mechanical strength
3.Excellent electrical insulation
4.High-frequency loss
5.Good thermal conductivity
6.Heat, wear and corrosion resistance.
3.Excellent electrical insulation
4.High-frequency loss
5.Good thermal conductivity
6.Heat, wear and corrosion resistance.
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Alumina Ceramic Property
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Property
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Unit
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92% Alumina Ceramic
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95% Alumina Ceramic
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99% Alumina Ceramic
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Density
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g/cm3
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≥3.63
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≥3.68
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≥3.83
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Water absorption
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%
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O
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O
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O
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Sintering temperature
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°C
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1500-1700
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1600-1800
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1700-1800
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Hardness
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HV
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≥1400
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≥1500
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≥1650
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Flexural strength
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Kgf/cm2
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3000
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3000
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3000
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Compressive strength
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Kgf/cm2
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24000
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25000
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26000
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Fracture toughness
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Map.m3/2
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3~4
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3~4
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4~5
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Maximum temperature
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°C
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1600
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1700
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1800
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Coefficient of thermal expansion
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/°C
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8*10-6
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8*10-6
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8*10-6
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Heat shock
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T(°C)
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220
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220
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220
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Thermal conductivity
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W/m.k(25-300°C)
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25 14
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25 14
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25 14
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20°C
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>1012
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>1012
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>1012
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Application:
Alumina is the best-known advantaced ceramicmaterial, is widely used in
1.Automotive
2.Petro-chemical
3.Fluid control
4.Material transfer
5.Industry
6.Electrical and electronic
7.Semiconductor
8.Sapphire is single-crystal alumina.
1.Automotive
2.Petro-chemical
3.Fluid control
4.Material transfer
5.Industry
6.Electrical and electronic
7.Semiconductor
8.Sapphire is single-crystal alumina.
Al2O3 Properties:
>Excellent electrical insulation
>Relatively low strength and fracture toughness
>Resistance to wear and corrosive
>Excellent thermal stability
>Resistance to high temperatures
>High electrical resistivity
>Good chemical stability
>High corrosion resistance
>Relatively low strength and fracture toughness
>Resistance to wear and corrosive
>Excellent thermal stability
>Resistance to high temperatures
>High electrical resistivity
>Good chemical stability
>High corrosion resistance
