Alumina (Al2O3) Crucible

Alumina (Al2O3) crucible is a refractory container widely used in high-temperature experiments and industrial production. Made from high-purity alumina raw materials through precise sintering processes, the alumina (Al2O3) crucible exhibits excellent high-temperature resistance and can withstand temperatures exceeding 1700°C. Its high melting point ensures structural stability during high-temperature operations such as melting and sintering, preventing deformation or breakage, thereby providing a reliable containment environment for various high-temperature material processes.

The inner wall of the alumina (Al2O3) crucible is smooth and offers outstanding chemical stability, making it resistant to reactions with most chemical substances. Whether exposed to acidic, alkaline, or neutral materials, the alumina (Al2O3) crucible maintains strong chemical inertness under high-temperature conditions, ensuring the purity of the processed materials. Additionally, the moderate thermal conductivity of the alumina crucible facilitates uniform heat distribution, allowing materials to heat evenly and ensuring consistent product quality.

In terms of appearance, the alumina (Al2O3) crucible is typically white or gray-white, with standardized geometric shapes such as cylindrical or conical designs. It comes in various sizes and can be customized according to customer requirements. The alumina (Al2O3) crucible is hard, mechanically robust, and resistant to certain levels of mechanical impact, making it durable during handling and use, thus extending its service life.

The alumina (Al2O3) crucible is widely used in multiple fields, including chemistry, materials science, metallurgy, and electronics. In chemical experiments, it is used for sample melting and compound preparation. In materials science, it is commonly employed for high-temperature sintering of ceramics and metal powders. In the metallurgical industry, it is utilized for metal melting and purification. In the electronics sector, it serves in the preparation of semiconductor materials. Thanks to its outstanding performance, the alumina (Al2O3) crucible plays a crucial role in high-temperature experiments and production.

Excellent Thermal Stability: Alumina crucibles exhibit outstanding resistance to thermal shock, allowing them to withstand rapid temperature fluctuations without cracking. With a maximum working temperature of 1800°C, they maintain structural integrity even under prolonged high-heat conditions, making them ideal for applications like metal casting, glass melting, and ceramic sintering.

Superior Chemical Inertness: Due to alumina's inherent stability, these crucibles rarely react with molten metals, acids, alkalis, or corrosive fluxes, ensuring minimal contamination of processed materials. This property is particularly valuable in high-purity material synthesis and chemical analysis.

Exceptional Hardness & Wear Resistance: Alumina ranks 9 on the Mohs hardness scale, making these crucibles highly resistant to abrasion and mechanical wear. Even after repeated use in harsh environments, they retain their smooth surface and dimensional stability, reducing the risk of sample contamination.

Lightweight & Easy to Handle: Compared to other refractory materials like zirconia or graphite, alumina crucibles are relatively lightweight yet durable, facilitating easy handling in both laboratory and industrial settings. Their ergonomic design ensures safe and efficient operation during high-temperature processes.

Reusable & Cost-Effective: In applications such as thermogravimetric analysis (TGA) or sample calcination, alumina crucibles can be reused multiple times after proper cleaning. Simply rinse with water or a 10% hydrochloric acid solution, then dry thoroughly-this does not compromise experimental accuracy. Their reusability makes them a cost-effective choice for long-term use.

Laboratory Chemical Analysis: In labs, alumina crucibles are often used to melt and refine metals. They also hold samples in high-temperature chemical reactions and analysis. Their resistance to acids, alkalis, and chemical inertness allows them to handle various reagents, ensuring accurate test results.

Materials Research: In materials science, alumina crucibles are used for high-temperature synthesis and sintering experiments. They help researchers develop and improve the properties of new materials.

High-Temperature Metallurgy: In the metallurgy industry, alumina crucibles are used to melt metals, especially precious ones like platinum, gold, silver, and copper. Their high melting point and non-reactive nature make them an ideal choice.

Glass Manufacturing: In glass production, alumina crucibles are used to melt and process glass materials. Their thermal stability and chemical resistance make them essential tools.

Semiconductor Manufacturing: In semiconductor production, alumina crucibles are highly pure, minimizing contamination. This makes them suitable for applications requiring extremely high-quality electronic components.

FAQ

Are you a factory or manufacturer?

A: Yes, we are a factory but we generally use our trading company to handle the business abroad. It will be more convenient to receive the remittance and arrange the shipment.

What is the delivery method?

A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.

Why is your product so cost-effective?

A: We cut out the middlemen in the end-to-end manufacturing process and we obtain raw material directly from its source.

Do you do spot quality inspection or full inspection?

A: 100% full inspection for sure. All unqualified products are discarded.

How do you ensure your lead time?

A: From material preparation to machining and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.

What is the MOQ of Alumina (Al2O3) Crucible?

A: Depends on quantity, generally, no MOQ limit.

How to pay for it?

A: A bank transfer (T/T) will be acceptable.

What is the delivery time?

A: around 7-20 days which depends on the quantity and production.

What is kind of the package?

A: Generally, we use a carton case or plywood case with protective material inside to ensure the save of cargo

What is the lead time?

A: from order placed to cargo receiving will take around 10-25 days.

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