Alumina Ceramic Crucible
Alumina Ceramic Square Shape Crucibles are manufactured for more than 20 years and have a skill production technology in different shapes and range of sizes from few milliliters to several liters,these fully dense,high purity an high temperature use,fine grain products find use in a range of high temperature applications such as metal processing/molten glass,rapid thermal cycling,gemstone purification for jewelry industry ect .
We can supply 95%and 99%alumina ceramic crucible and zirconia ceramic crucible according to customer`s drawings,samplesand performance requirement.Make various crucibles and saggers made of high alumina,with different shapes.Also custom based on the requirement is available.
Alumina is widely used in automotive,petro-chemical,fluid control material transfer,industry,electrical and electronic,semiconductor.
Alumina ceramic crucible include:
- arc alumina crucible
- square alumina crucible
- rectangle alumina ceramic crucible
- column ceramic crucible
- other shaped alumina ceramic crucible
Overview of physical properties:
- High chemical etching resistance
- High temperature up to 1800 C (alumina)and 2400 C (zirconia)
- Resistant to sudden cold and hot,un-explosive
- High density of slip casting
Ceramic Crucible,Cylinder Ceramic Crucible,Cylinder Alumina Crucible,Ceramic Crucible for Laboratory,100ml Ceramic Crucible,Thermal Analysis Ceramic Crucible,Ceramic Melting Pot,Alumina Ceramic Pot Rectangular Ceramic Crucible,Ceramic Boat Crucible,Smelting Ceramic Crucible,Melting Ceramic Crucible.
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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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FAQ
Q1: Alumina or zirconia – which to choose?
A: Choose 99% alumina for ≤1800°C and best value; select zirconia for >1800°C or extreme thermal shock.
Q2: How many uses and how to clean?
A: 50–200+ cycles typical. Clean with dilute acid soak, ultrasonic, DI water rinse, then dry at 100–150°C. Avoid strong alkalis/HF.
Q3: Lids available? Minimum order?
A: Yes, same-material lids for most shapes. MOQ: 10–50 pcs for standard sizes; 5–20 pcs for custom.
