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Alumina Crucible for Thermal Analysis

Alumina 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 and subjected to a temperature of 1700 ℃ , featuring resistance against wear, wash, high temperature, has very good resistance to chemical erosions and thermal shock. such as metal processing / molten glass, rapid thermal cycling, gemstone purification for jewelry industry etc. They are widely used in the field of metallurgical industry ,chemical industry and material science .

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Product Details

Crucibles serve as containers for samples during thermoanalytical measurements. The performance of crucible used for a measurement can have a large effect on the quality of the results obtained.

Alumina Crucible for Thermal Analysis .jpg

Physical Properties

Material	Test Condition	Unit＆Symbol	Alumina99
Alumina Content	-----	%	99.3
Bulk Density	-----	g/cm3	3.9
Fracture Toughness	-----	MPa/cm3	300
Knoop Hardness	-----	-----	2200
Appr.Poro Ratio	-----	%	﹤0.10
Thermal Expa Coeff.	-----	-----	5.3
Thermal Conductivity Coeff.	-----	-----	27
linear thermal Expa Coeff	20---500℃ 20---800℃	10-6mm/℃	6.5~7 6.5~8
permittivity	1MHz，20℃ 10GHz，20℃	-----	9～10
Dielectric loss tangent	1MHz,20℃ 10GHz，20℃	×10-4	≤3 ≤9
Volume resistivity	25℃	Ω.cm	8×1014
Dielectric strength	-----	Kv/mm	15
Chemical stability	1：9HCI 10％NaOH	mg/cm2	≤7 ≤0.2
Max. Use Temp.	-----	℃	1700
Working Temp.	-----	℃	1650

Our alumina crucibles have four remarkable characteristic as follow:

. Good thermal conductivity: Ensure optimum heat transfer with the lowest possible temperature gradients between the sample and the sample holder.

. An inert material : No physical or chemical transitions, not react with the sample in the temperature range used.

. High temperature stability: Mainly used for measurements at higher temperatures above(>1000°C), Very large temperature range， Max work temperature is 1750°C.

. Reuse: Mechanical clean,, store them, if need be, in water (or possibly even in 10% hydrochloric acid) which can then be removed by rinsing. After drying and red heat ,There is no weight loss occurs when they are used.

Please note that we have a large stock on hand for immediate delivery convenience for our customer with transparent price, so you can order directly by contacting us at　jinanbote@126.com.cn .