Overview of Alumina Crucible

Alumina crucibles, made from aluminum oxide (Al₂O₃), are highly valued in laboratory and industrial settings for their exceptional thermal stability and chemical inertness. They are used in high-temperature applications such as melting and calcining materials, including metals, ceramics, and chemicals. Alumina crucibles come in various purities and shapes to meet specific needs, offering durability and resistance to thermal shock and corrosion.

Features of Alumina Crucible

High Thermal Stability: Can withstand extremely high temperatures without degrading.

Chemical Inertness: Resistant to most chemicals, making it suitable for a wide range of reactions.

Durability: Exceptional resistance to wear and mechanical stress.

Thermal Shock Resistance: Minimal risk of cracking or breaking under rapid temperature changes.

Corrosion Resistance: Withstands corrosive environments, extending its lifespan.

Purity Levels: Available in different purity levels to suit specific application requirements.

Variety of Shapes and Sizes: Customizable to fit various experimental and industrial needs.

(High temperature and corrosion resistant alumina ceramic crucible)

Specifications of High temperature and corrosion resistant alumina ceramic crucible

The high-temperature and corrosion-resistant alumina ceramic crucible is engineered for demanding industrial and laboratory applications needing outstanding thermal security and chemical inertness. Made up of high-purity alumina (Al ₂ O ₃) with a content of 99% or greater, this crucible guarantees marginal contamination and ideal resistance to severe settings. It operates continually at temperature levels as much as 1700 ° C( 3092 ° F )and can stand up to temporary peaks of 1800 ° C(3272 ° F), making it perfect for processes like steel melting, glass combination, and high-temperature calcination. The material exhibits exceptional thermal shock resistance, sustaining quick temperature level fluctuations as much as 300 ° C( 572 ° F)without cracking or deterioration.

Chemically, the crucible resists rust from acids, antacid, liquified salts, and aggressive solvents, consisting of hydrofluoric acid (HF), nitric acid (HNO ₃), and sulfuric acid (H ₂ SO ₄), making sure long life in responsive settings. Its dense, non-porous structure lessens product attachment and streamlines cleansing. With a Mohs hardness of 9, it ranks just listed below diamond, providing remarkable wear resistance and mechanical stamina. The compressive stamina exceeds 2000 MPa, and its density varies between 3.6– 3.9 g/cm ³, stabilizing longevity with thermal effectiveness.

Offered in capabilities from 10 mL to 5000 mL, conventional dimensions include elevations of 20– 200 mm and diameters of 15– 150 mm, with wall thicknesses of 3– 10 mm relying on dimension. Custom layouts are supported for specialized applications. The smooth surface area finish decreases contamination dangers, and the white or ivory color shows high purity.

Licensed under ISO 9001 for top quality monitoring and RoHS for ecological safety and security, these crucibles appropriate for metallurgy, chemistry, materials research, and ash evaluation. They are multiple-use if managed carefully– prevent abrupt thermal shocks or mechanical impacts. Correct pre-heating and cooling down protocols prolong service life. A 12-month guarantee covers production issues. Perfect for laboratories, foundries, and R&D centers, this crucible combines integrity, accuracy, and versatility for high-performance thermal processing.

(High temperature and corrosion resistant alumina ceramic crucible)

Applications of High temperature and corrosion resistant alumina ceramic crucible

High-temperature and corrosion-resistant alumina ceramic crucibles are engineered to hold up against severe atmospheres, making them indispensable across markets needing reputable thermal and chemical stability. Composed primarily of aluminum oxide (Al ₂ O ₃), these crucibles master applications requiring resistance to temperature levels going beyond 1700 ° C, aggressive chemical exposure, and mechanical wear.

In metallurgy, alumina crucibles are made use of for melting and refining non-ferrous metals, alloys, and rare planet elements. Their capability to withstand prolonged high-temperature exposure without deteriorating guarantees minimal contamination, crucial for creating high-purity metals. Likewise, in chemical processing, they serve as reactors or containers for synthesizing destructive substances, acids, or alkalis, where conventional metal or quartz crucibles would certainly stop working.

Laboratories depend on alumina crucibles for thermal evaluation, ash testing, and calcination processes. Their inert nature prevents responses with samples, making certain exact results in thermogravimetric evaluation (TGA) or X-ray fluorescence (XRF). In the semiconductor industry, they are used throughout crystal growth, doping processes, or sintering advanced ceramics, where purity and thermal uniformity are non-negotiable.

Glass and ceramic makers make use of these crucibles to thaw resources or handle molten glass, benefiting from their resistance to thermal shock and alkaline disintegration. Ecological testing centers use them for examining contaminated materials or ash content at extreme temperature levels, while the power industry uses them in nuclear or solar research study for taking care of responsive products.

Alumina crucibles also contribute in products science research, such as establishing high-performance layers, stimulants, or composites. Their toughness minimizes replacement prices contrasted to platinum or nickel choices, and their high dielectric stamina matches them for digital element testing.

Secret benefits consist of minimal thermal expansion, high mechanical stamina, and resistance to oxidation. Offered in varying pureness grades (e.g., 95%, 99%), they accommodate details requirements, balancing cost and performance. Whether in industrial heaters, R&D laboratories, or specialized production, alumina ceramic crucibles supply durability and precision, making them a cornerstone of high-temperature material handling.

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 High temperature and corrosion resistant alumina ceramic crucible

What is the maximum temperature an alumina ceramic crucible can withstand? High-temperature alumina ceramic crucibles are designed to endure extreme heat, typically up to 1700°C (3092°F) in continuous use and up to 1800°C (3272°F) for short-term applications. This makes them ideal for processes like metal melting, glass fusion, or high-temperature material synthesis. The exact limit depends on the alumina content (usually 95–99% Al₂O₃) and the crucible’s manufacturing quality. Always verify the specifications for your specific model to avoid thermal damage.

How resistant are alumina crucibles to chemical corrosion? Alumina ceramic crucibles excel in resisting corrosion from acids, alkalis, and molten salts, particularly in oxidizing or inert atmospheres. They withstand most organic and inorganic chemicals, including aggressive substances like molten metals and fluxes. However, they are vulnerable to hydrofluoric acid, phosphoric acid, and strong alkalis at elevated temperatures. Always check chemical compatibility charts for your application to ensure longevity.

Can alumina crucibles handle rapid temperature changes? While alumina ceramics have excellent thermal stability, their thermal shock resistance is moderate. Sudden temperature shifts (e.g., quenching a hot crucible in water) may cause cracking. To prevent this, gradually heat or cool the crucible at a rate of 3–5°C per minute. High-purity alumina (>99%) offers better thermal shock resistance than lower grades. Preheating the crucible before high-temperature use is recommended.

What industries or applications are these crucibles used for? These crucibles are widely used in laboratories, metallurgy, and industrial settings. Common applications include melting precious metals (gold, platinum), analyzing ash content, sintering ceramics, and processing semiconductors. They are also used in chemical research, heat treatment, and aerospace component testing due to their inertness and durability in harsh environments.

How should I clean and maintain an alumina ceramic crucible? After use, allow the crucible to cool slowly to room temperature. Remove residues by soaking in dilute hydrochloric acid or a mild detergent, then rinse with distilled water. Avoid abrasive scrubbers or mechanical impact to prevent surface damage. Inspect for cracks or erosion before reuse. Store in a dry environment to minimize moisture absorption. Proper handling ensures extended service life.

(High temperature and corrosion resistant alumina ceramic crucible)