Customized high quality high temperature resistant alumina crucible

Overview of Alumina Crucible

An Alumina crucible is a kind of high-temperature-resistant experimental apparatus made of high-purity alumina as the main raw material, which is characterized by high-temperature resistance, corrosion resistance and good chemical stability. Alumina crucible can withstand high temperatures above 1700℃, which is suitable for many kinds of chemical experiments and material preparation processes, such as metal melting, ceramic sintering and so on. The inner wall of the alumina crucible is smooth and does not easy to react with experimental materials, which can ensure the accuracy of experiments. Its price varies according to the specification, capacity and purity. Generally, the price of a small alumina crucible varies from dozens of dollars to hundreds of dollars, and the price of a large or high-purity alumina crucible is relatively high. When purchasing, you need to choose the right size and material according to the experimental demand to ensure the experimental effect and cost-effectiveness.

Features of Alumina Crucible

Alumina crucible is widely used in laboratories and industries for its excellent performance, becoming an indispensable tool in high-temperature experiments and material preparation. It has extremely high-temperature resistance and can withstand high temperatures up to 1700℃ or more, which makes it perform well in metal melting, ceramic sintering, glass manufacturing and various high-temperature chemical reactions, and can meet the needs of experiments under a variety of extreme temperature conditions.

In addition, alumina crucibles are thermally stable, with a low coefficient of thermal expansion, which means that they are less likely to break or deform in the face of rapid temperature changes. This characteristic not only prolongs the service life of the crucible but also reduces the safety risk and the possibility of interruption of the experiment due to crucible damage during the experiment.

These characteristics of alumina crucibles enable them to excel in a wide range of experimental and industrial applications. Whether it is fine chemistry experiments in the laboratory or large-scale material processing in industrial production, alumina crucibles provide reliable performance support to ensure smooth experiments and production.

Specifications table of Alumina Crucible

Parameter	Specification
Material	High-purity Aluminum Oxide (Al₂O₃)
Purity	≥99.5%
Maximum Operating Temperature	Up to 1700°C
Density	3.95-4.00 g/cm³
Porosity	<1%
Thermal Conductivity	20-30 W/m·K
Thermal Expansion Coefficient	6-8 x 10⁻⁶/K
Chemical Resistance	Excellent resistance to acids and alkalis; inert to most chemicals
Surface Finish	Smooth, polished interior to minimize sample adhesion and ensure easy cleaning
Dimensional Tolerance	±0.1 mm (standard)
Color	White
Common Shapes and Sizes	Various shapes (cylindrical, conical, boat-shaped); capacities from few grams to several kilograms
Applications	Chemical analysis, metal melting, ceramic and glass sintering, high-temperature reactions

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Applications of Alumina Crucible

Aluminum oxide crucible has a wide range of applications in many fields due to its excellent properties such as high-temperature resistance, chemical stability and low coefficient of thermal expansion. In chemical experiments, it is often used for high-temperature melting treatment, such as melting metals, glass and various inorganic compounds. Due to its chemical inertness, it is able to withstand the erosion of strong acids, alkalis and other chemical reagents, making alumina crucibles an ideal choice of container for chemical analysis and material synthesis.

In the field of material science, alumina crucibles are widely used in the sintering process of ceramics and glass. It ensures that the material is heated uniformly at high temperatures while preventing chemical reactions between the material and the crucible, thus guaranteeing the quality and properties of the final product. In addition, alumina crucibles are used for the preparation of high-purity metals and alloys because they provide a pollution-free melting environment.

In industrial production, alumina crucibles are used in high-temperature furnaces to heat and melt a variety of materials, such as metals and ceramic powders. Its high strength and abrasion resistance enable it to be used for a long time in harsh industrial environments, reducing the frequency of replacement and increasing productivity. In the electronics industry, alumina crucibles are used for the preparation of semiconductor materials and electronic ceramics because they provide a pure and stable high-temperature environment that ensures high-quality production of materials.

In the medical field, alumina crucibles are also used for high-temperature sterilization and treatment of medical waste, where their high-temperature and corrosion-resistant properties make them ideal. In addition, it is used in high-temperature reactions in the pharmaceutical industry to ensure the quality and safety of medicines.

In conclusion, alumina crucibles have important applications in many fields, such as chemical experiments, material science, industrial production, electronic industry, medical and pharmaceutical industries, etc., because of their excellent performance, which provides reliable support for various high-temperature processes.

Company Profile

RBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. The company exports to many countries, such as the USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Cameroon, Uganda, Turkey, Mexico, Azerbaijan, Belgium, Cyprus, Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia, Germany, France, Italy, Portugal etc. As a leading nanotechnology development manufacturer, RBOSCHCO dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are interested, please send an email to sales1@rboschco.com

Payment Term

T/T, Western Union, Paypal, Credit Card etc.

Shipment Term

By air, by sea, by express, as customers request.

5 FAQs of Alumina Crucible

Q1:How to clean aluminum oxide crucible?

Regularly clean the surface of the product; you can use a mild detergent and a soft cloth to wipe it, and avoid using too intense cleaning methods to avoid damaging the surface. If there is any residue inside the crucible, you can soak it in distilled water and then brush it gently with a soft bristle brush. If the residue is difficult to remove, the crucible can be placed in a clean furnace and processed at a high temperature of about 1000°C to remove residual impurities.

Q2:How is the chemical stability of alumina crucible?

Aluminum oxide crucible has excellent chemical stability, can resist the erosion of acid, alkali and other corrosive media, and is suitable for a variety of laboratory metal non-metallic sample analysis and melt with. However, it should be noted that certain materials such as lead, tin, silicon, antimony, rare earth compounds, and strong bases at high temperatures (e.g., sodium hydroxide or potassium hydroxide) may react with alumina, resulting in crucible damage or sample contamination.

Q3:What is the thermal stability of alumina crucible?

Alumina crucibles have good thermal stability and low coefficient of thermal expansion and are not easily ruptured by temperature changes.

Q4:What is the service life of alumina crucible?

The service life of alumina crucible mainly depends on the way of use and maintenance. The aluminum oxide crucible can be used for a long time if correct operation methods and maintenance techniques are followed.

Q5:What is the price range of aluminum oxide crucible?

The price of an aluminum oxide crucible varies according to the specification, capacity and purity. Generally, the price of a small crucible ranges from tens of dollars to hundreds of dollars, and the price of a large or high-purity crucible is relatively high.