Various specifications capacity alumina ceramic crucible
Alumina Ceramic Square 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 etc. Majodrity of applications require the ceramic to be impervious, porous forms can also be made on order.
Alumina ceramic crucibles include:
ceramic crucible
Overview of Physical Properties:
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Alumina Ceramics Properties
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Unit
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95%
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99%
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Density
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g/cm3
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3.6
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3.8
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Water absorption
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%
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<0.4
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<0.2
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Firing temperature
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°C
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1600
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1800
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Hardness
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HRA
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70
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80
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Coefficientoflinearexpansion
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*10-6/°C
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5.5
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5.3
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Dielectric constant
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9
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10.5
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Volume resistivity
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Ω·cm
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—
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1013
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Breakdownvoltage
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KV/mm
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14
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15
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Breaking strength
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Mpa
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250
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300
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Frequently Asked Questions (FAQ)
1. What is the maximum temperature this alumina crucible can withstand? The crucible is suitable for long-term use up to 1600°C, with short-term exposure possible up to 1750-1800°C, depending on the specific conditions.
2. Can this crucible be reused, and how should it be cleaned? Yes, alumina crucibles are designed for reuse. They can be cleaned using appropriate methods such as ultrasonic cleaning or mild acids (consult material compatibility), ensuring no residue affects future measurements.
3. Is this crucible compatible with TGA and DSC instruments? Absolutely. Alumina crucibles are the standard choice for TGA measurements and are widely used in DSC due to their high purity, thermal stability, and minimal interaction with samples.
