Overview of Corundum Crucible

Corundum crucibles are high - temperature level containers largely made up of alumina (Al2O3 ≥ 90% pureness), supplying exceptional thermal security and resistance to chemical rust. With a melting point exceeding 2000 ° C, they are suitable for applications needing severe warm, such as melting precious metals, high - temperature level sintering in ceramics, and semiconductor product handling. Their thick framework and low porosity offer exceptional mechanical toughness and resistance to thaw metals/chemicals. Nonetheless, they are less immune to thermal shock compared to mullite crucibles. Usual uses consist of metallurgical refining, research laboratory analysis, and electronic element production. Appropriate storage in completely dry, dust - complimentary atmospheres is essential to keep efficiency. Particular residential or commercial properties may differ by maker.

（Corundum crucibles）

Features of Corundum Crucible

Diamond crucibles have high thermal security, allowing them to hold up against extreme heat up to 2000 ° C or even more without substantial deformation. Their chemical inertness makes them resistant to rust from several acids, bases, and molten metals, guaranteeing the pureness of the substances being refined. With excellent mechanical stamina, they can sustain the stress and anxiety and stress during high - temperature operations. In addition, they have a reduced thermal expansion coefficient, which helps to decrease the risk of breaking because of thermal shock. Their high-thickness framework additionally results in great insulation homes, reducing warm loss.

Parameter table of Corundum Crucible

Parameter	Description
Main component	Alumina (\(\text{Al}_2\text{O}_3\)), usually with a purity of 95%, 99%, or higher
Melting point	Above 2000°C
Density	Generally in the range of 3.6 - 3.9 g/cm³
Thermal expansion coefficient	Relatively low, around \((6 - 8)\times10^{-6}/^{\circ}\)C
Thermal conductivity	Moderate, allowing for efficient heat transfer while providing some insulation
Chemical stability	Highly resistant to most acids, bases, and molten metals
Mechanical strength	High, able to withstand significant stress and pressure
Porosity	Low, typically less than 5%

Applications of Corundum Crucible

Corundum crucibles have a variety of applications in various fields due to their excellent high - temperature level resistance and chemical stability. In the metallurgical sector, they are used for melting and refining rare-earth elements like silver and gold, along with high - temperature alloy materials. In the ceramics market, they are employed in the sintering procedure of ceramic powders to guarantee the high - temperature environment needed for densification. In research laboratories, diamond crucibles are generally made use of for high - temperature experiments, such as the decision of ash web content and the calcination of examples. In the electronics industry, they are utilized in the manufacturing of semiconductor materials and digital components, giving a secure high - temperature setting for procedures like crystal development and movie deposition.

Production Method of Corundum Crucible

The production of corundum crucibles typically entails the complying with steps. First, high - purity alumina powder is chosen as the raw product. After that, it is combined with appropriate additives and binders. The blend is developed right into the preferred crucible form via procedures like pressing or casting. Afterwards, the environment-friendly crucible is dried to get rid of dampness. Ultimately, it is sintered at a high temperature of over 1600 ° C to compress the material and improve its mechanical and thermal residential or commercial properties.

Storage Condition of Corundum Crucible

Corundum crucibles should be stored in a dry and well - ventilated environment. Avoid storing them in humid places to prevent moisture - induced damage such as surface corrosion or reduced insulation performance. They should also be kept away from areas with strong vibrations and impacts to prevent cracking or damage. Additionally, it's advisable to store them in a dust - free environment to maintain their cleanliness and prevent impurities from adhering to the surface.

Company Introduction

Welcome to Teen-Hot,a leading global supplier of high-quality crucibles designed for various industrial applications. We offer an extensive range of crucibles, including graphite, ceramic, and metal varieties, tailored to meet the needs of foundries, laboratories, and manufacturers. Our products are renowned for their durability, thermal resistance, and precision engineering, ensuring optimal performance in melting and heat treatment processes. With advanced manufacturing facilities and a commitment to excellence, we provide reliable, cost-effective solutions worldwide. Partner with us for your crucible needs and experience superior quality, expert support, and timely delivery.

If you have any questions, please feel free to contact us(nanotrun@yahoo.com).

Payment Methods

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

Shipment Methods

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

5 FAQs of Corundum Crucible

Q1:What is the maximum temperature that a diamond crucible can withstand?
Corundum crucibles can generally stand up to temperature levels as much as 2000 ° C or more, depending on the purity of the diamond and the specific production process.
Q2:Is the corundum crucible chemically secure?
Yes, corundum crucibles have superb chemical security. They are extremely immune to many acids, bases, and molten steels, which aids to maintain the purity of the substances being refined.
Q3:Just how should I clean a corundum crucible?
After use, the crucible needs to be cooled down normally and afterwards cleaned up with appropriate solvents or detergents, depending upon the nature of the deposit. Prevent utilizing extreme chemicals that could harm the crucible. Physical techniques such as gentle scratching or brushing can also be used to remove stubborn residues.

Q4:Can corundum crucibles be utilized for duplicated high - temperature level experiments?
Yes, diamond crucibles have great thermal stability and can be utilized for numerous high - temperature level experiments. However, with repeated usage, they might gradually experience some damage, such as a reduction in mechanical toughness or a rise in porosity. Normal evaluation is needed to make sure their performance.
Q5:What are the distinctions in between diamond crucibles of different pureness?
Higher - purity diamond crucibles have much better high - temperature resistance, chemical security, and mechanical properties. They are more suitable for applications calling for high - pureness products and stringent procedure control, such as in the semiconductor and rare-earth element industries. Reduced - pureness crucibles are extra price - efficient and might suffice for some basic - objective research laboratory or industrial applications.