Product Introduction of Alumina Ceramic Crucible
An aluminum oxide crucible is a high-temperature resistant vessel made of high-purity alumina (Al₂O₃), which is widely used in laboratory and industrial environments. This crucible is known for its excellent thermal stability, chemical inertness and corrosion resistance and is suitable for sample handling during high-temperature heating processes.
Alumina Crucible
Specification of Alumina Ceramic Crucible
|
Specification |
Description |
|
Material |
High-purity Alumina (Al₂O₃) |
|
Purity |
99.5% – 99.99% (depends on the manufacturer) |
|
Temperature Resistance |
Up to 1600°C (varies by grade, some can withstand higher) |
|
Density |
3.90 – 4.00 g/cm³ |
|
Porosity |
Low, typically ≤ 0.1% (varies by manufacturing process) |
|
Size Range |
From 1 mL to several liters (custom sizes available) |
|
Shape |
Typically cylindrical, but can also be square, rectangular, or custom shapes |
|
Wall Thickness |
Generally 3-6 mm, but can vary based on size and application |
|
Thermal Conductivity |
15 – 30 W/m·K at room temperature |
|
Expansion Coefficient |
7.5 × 10⁻⁶ /°C (from 25°C to 1200°C) |
|
Electrical Resistivity |
High resistance, non-conductive |
|
Application |
Melting and holding metal, chemical analysis, high-temperature synthesis, lab use, etc. |
|
Strength |
High mechanical strength, especially at high temperatures |
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Chemical Resistance |
Excellent resistance to most acids and alkalis |
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Ease of Cleaning |
Easy to clean, typically requires minimal maintenance |
Features of Alumina Ceramic Crucible
1. high melting point: the melting point of the alumina crucible is up to 2050℃, which can be used for melting metals and other materials with high melting points.
2. high thermal stability: alumina crucible has high thermal stability and can be used for a long time at high temperatures without damage.
3. Corrosion resistance: alumina crucible has corrosion resistance and can be used in various chemical environments.
4. Easy to clean: The aluminum oxide crucible is easy to clean and can be cleaned with various cleaning methods to remove residues. Aluminum oxide crucible is a very useful tool for a variety of industrial and laboratory applications.
Application areas of Alumina Ceramic Crucible
Metallurgical analysis: used to melt metals and alloys for compositional analysis.
Chemical experiments: as reaction vessels, especially in experiments that require acid and alkali resistance and high-temperature resistance.
Material science: used as a tool for sintering or heat treatment when researching new materials.
Environmental monitoring: used in the pretreatment process of environmental samples such as soil and water samples.
Medical research: used in ashing or other high-temperature treatment steps for biological samples.
Company Profile
Luoyang Tongrun Nano Technology Co. Ltd. (TRUNNANO) is a trusted global chemical material supplier & manufacturer with over 12-year-experience in providing super high-quality chemicals and nanomaterials, including boride powder, nitride powder, graphite powder, ceramic products, 3D printing powder, etc.
The company has a professional technical department and Quality Supervision Department, a well-equipped laboratory, and equipped with advanced testing equipment and after-sales customer service center.
If you are looking for high-quality Alumina Ceramic Crucible, please feel free to contact us or click on the needed products to send an inquiry.
Payment Term
T/T, Western Union, Paypal, Credit Card etc.
Shipment Term
By air, by sea, by express, as customers request.
FAQs of Alumina Ceramic Crucible
What is the maximum temperature an aluminum oxide crucible can withstand?
Aluminum oxide crucibles can typically withstand temperatures up to 1800°C, depending on their manufacturing quality and the environmental conditions in which they are used. For special applications, higher grades may be available that can withstand even higher temperatures.
Are aluminum oxide crucibles suitable for all types of chemicals?
Aluminum oxide crucibles have good chemical stability to most inorganic compounds, but for some strong alkalis (e.g., sodium hydroxide) and fluorides, reactions may occur at elevated temperatures, so the specific chemical environment needs to be taken into account when making a selection.
How do I clean an aluminum oxide crucible?
It is generally recommended to clean the aluminum oxide crucible by rinsing with mild deionized water and, if necessary, gently scrubbing with a soft-bristled brush using a non-corrosive detergent, avoiding the use of hard objects to scrape the surface to avoid damage.
Does the aluminum oxide crucible react with the sample?
Under normal conditions, aluminum oxide crucibles are chemically inert and will not react with most samples. However, under extreme conditions (e.g., extremely high temperatures or the presence of specific chemicals), trace reactions may occur, which should be taken into account when selecting the crucible material.
What is the service life of an aluminum oxide crucible?
The service life depends mainly on the frequency of use, operating conditions and maintenance. Proper use and care will extend the life of the crucible; however, over time and with many high-temperature cycles, the crucible may become worn or cracked and will need to be replaced with a new crucible to ensure accurate and reliable results.
