Alumina Ceramics Crucible

Your Professional Alumina Ceramics Crucible Supplier

Superior Ceramics Times Technology Co., Ltd. is a manufacturer specializing in the production of advanced ceramic materials, including nitrides, oxides, carbides, and composite ceramics. Our product portfolio encompasses silicon carbide, aluminum nitride, alumina, ultrapure alumina, yttria, zirconia, high-purity and high-performance boron nitride ceramics, zirconia toughened alumina (ZTA), alumina toughened zirconia (ATZ), silicon nitride, as well as other reinforced, composite, and high-performance ceramic materials.

Advanced Production Technology

The company employs advanced manufacturing technologies, including sintering, molding, grinding, CNC machining, laser drilling, precision grinding, and polishing processes.

Complete Production Equipment

Key production equipment includes sintering furnaces, isostatic presses, grinders, engraving machines, laser cutters, double-sided grinding machines, sand wire cutting devices, and injection molding machines.

Professional R&D Team

Our team consists of experienced experts dedicated to researching advanced ceramic materials. To date, the team has published over 100 academic papers, filed five Chinese invention patents, and obtained more than 20 utility model patents.

Professional Service

The product has technical support from Ph.D. experts and other experts during the research and development stage. The process is rigorous during the production process, and the after-sales service is on call 24 hours a day.

99.99% High-Purity Alumina Crucible
A cylindrical ceramic crucible is a high-temperature vessel produced through high-temperature firing, commonly used for chemical experiments, calcination, and melting under extreme heat...
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Parameter

Material	Alumina Ceramic
Color And Size	Customize
Delivery time	7-30 days
Items Design	According to the client's drawing or samples
Features	Good quality, low price, Multiple factories, deliver to you based on the one closest to your location

Advantages of Alumina Ceramics Crucible

High Temperature Resistance

Crucibles made of alumina will withstand temperatures as high as 1800°C. This makes them perfect for use in high temperature uses like metal melting and casting, where other materials may melt or degrade.

Chemical Resistance

Alumina crucibles are highly resistant to most chemicals, including acids and bases, which makes them suitable for chemical analysis.

Thermal Shock Resistance

Because of their high resistance to thermal shock, alumina crucibles can endure sudden temperature changes without breaking or cracking. For applications like thermal analysis that call for quick heating and cooling of samples, this feature is crucial.

High Purity

High-purity alumina, which is 99% pure and serves as the main raw material for alumina crucibles, is used because it is free of impurities that might taint the sample. This is important to maintain experimental rigor and objectivity, and is important for applications such as crystal growth.

Long lifespan

Alumina crucibles are very durable and long-lasting, making them a cost-effective choice from a cost-saving perspective. As long as they are cleaned after each use, they can be reused many times.

Applications of Alumina Ceramics Crucible

Melting and Heating
Alumina crucibles are widely used for melting and heating processes in the metallurgy, ceramics, and glass industries. They can withstand high temperatures, making them suitable for melting metals, alloys, and ceramic materials.

Sample Preparation
In laboratories, alumina crucibles are used for sample preparation in analytical techniques such as gravimetric analysis, fusion, and ashing. They provide a stable and inert environment for sample decomposition and analysis.

Chemical Reactions
Alumina crucibles are employed in chemical laboratories for conducting various chemical reactions, including synthesis, decomposition, and combustion reactions. Their chemical inertness and resistance to corrosive chemicals make them ideal for such applications.

High-Temperature Furnaces
Alumina crucibles are compatible with high-temperature furnaces used in research and industrial settings. They can withstand temperatures up to several thousand degrees Celsius, making them suitable for sintering, annealing, and heat treatment processes.

Casting and Molding
In foundries and casting operations, alumina crucibles are used for casting and molding metals and alloys. They provide a stable and refractory container for molten metal during the casting process.

Semiconductor Manufacturing
Alumina crucibles are utilized in semiconductor manufacturing processes for growing single crystals, such as silicon and gallium arsenide. They provide a controlled environment for crystal growth at high temperatures.

Laboratory Research
Alumina crucibles are essential in scientific research for various applications, including materials science, chemistry, geology, and environmental analysis. They are used for experiments involving high temperatures, corrosive substances, and thermal stability.

Thermal Analysis
Alumina crucibles are employed in thermal analysis techniques such as differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), and thermal conductivity measurements. They help in studying the thermal properties and phase transitions of materials.

Precautions for Using Alumina Ceramic Crucibles

You should use specially designed, top-quality, and heat-resistant gloves and tongs to handle it when you are using the crucible for aluminum melting or any other metal. This will prevent both sustaining severe personal injuries, thereby ensuring a safer working environment.

Make sure that you do not drop or stack the crucibles. This is because even though alumina is highly durable under heat, it remains extremely brittle and can easily develop cracks or break completely.

It is crucial to prevent thermal stress and avoid sudden material expansion, which can lead to breakage while heating the crucible. Ideally, you must preheat the crucible and start your experiment in a well-controlled environment, beginning at room temperature and increasing the heat gradually in small increments.

You must put the crucible for chemistry on a heat-resistant ceramic surface or firebrick instead of putting it directly into the flame. If you expose the alumina crucible to a temperature source, it will result in improper and unequal heating, causing material stress, breakages, and probable failures.

You must not put cold metal, liquids, or any other material in the hot crucible to prevent an extreme and sudden change in temperature. This will consequently prevent thermal shock that can result in instant breakages and gradual degradation of the material.

Also, do not try to cool the crucible lab equipment rapidly. The best tactic for preventing thermal shock in crucibles is to leave it inside the furnace before removing it so that it cools down naturally. You can also put it in a controlled cooling setting.

Customization Process

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Packaging and Shipping

Packaging	The package of our products usually includes bubble wrap, carton, pallet and wooden case, etc. Also it can be designed according to your demands.
Shipping	Shipping by sea, by air, by express are acceptable. According to your requirements.

Our Factory

Superior Ceramics Times Technology Co., Ltd. was established in 2005 and has several production plants in Taizhou, Shaoxing, etc. We also have a registered company in the United States, located at 10 ROBIN, IRVINE, CA 92604.

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Our Certificates

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FAQ

Q: What is the best way to heat an alumina crucible?

A: Gradually increase the temperature in small increments to prevent thermal shock. Always preheat in a controlled environment before exposing it to extreme heat. Avoid direct flame contact.

Q: Can I use an alumina crucible for gold or silver melting?

A: Yes, alumina crucibles are compatible with gold and silver melting due to their high-temperature resistance and non-reactive nature, ensuring purity without contamination from the crucible material.

Q: How long does an alumina crucible last?

A: Lifespan depends on usage and handling. With proper care, including gradual heating, avoiding incompatible chemicals, and regular inspections, an alumina crucible can last for multiple high-temperature cycles.

Q: Is an alumina crucible reusable?

A: Yes, alumina crucibles are highly reusable if cleaned properly after each use. Regular maintenance, following best practices for handling lab crucibles, and avoiding rapid temperature changes help extend their operational life.

Q: Is alumina better than zirconia crucible?

A: Zirconia Crucibles (ZrO2) offer three advantages over their alumina crucible counterparts: they are more refractory, having a melting point some 500oC above alumina. They are readily machined and give a high quality surface finish and are a useful oxygen anion conductor for use in sensors and fuel cells.

Q: How to clean an alumina crucible?

A: For cleaning very heavily contaminated alumina crucibles, the following process has proven itself: soak the crucibles for at least 24 hours in aqua regia (3 parts concentrated hydrochloric acid and 1 part concentrated nitric acid) and boil for 3 hours in this solution (aqua regia dissolution).

As one of the most professional alumina ceramics crucible manufacturers and suppliers, we're featured by quality products and good price. Please rest assured to buy high-grade alumina ceramics crucible from our factory.