Overview of Corundum Crucible

Corundum crucibles, made from alumina (Al₂O₃), are highly valued for their exceptional thermal resistance and chemical stability. These crucibles are ideal for high-temperature applications, such as melting and annealing processes in laboratories and industrial settings. Corundum crucibles can withstand temperatures up to 1800°C and are resistant to most chemical reagents, making them indispensable in various scientific and manufacturing operations.

Features of Corundum Crucible

High Thermal Resistance: Can withstand temperatures up to 1800°C without degrading.

Chemical Stability: Resistant to most acids and alkalis, ensuring minimal contamination during experiments or production.

Durability: Extremely durable and long-lasting, even under harsh conditions.

Non-Reactive: Does not react with the materials being processed, preserving sample purity.

Versatility: Suitable for a wide range of applications including melting metals, glass, and ceramics.

Precision Engineering: Manufactured to tight tolerances for consistent performance and reliability.

(Hight Temperature 99.7% Al2o3 Alumina Ceramic Corundum Crucibles)

Specification of Hight Temperature 99.7% Al2o3 Alumina Ceramic Corundum Crucibles

Heat 99.7% Al2O3 Alumina Porcelain Diamond Crucibles are precision-engineered research laboratory and commercial tools designed for extreme thermal and chemical atmospheres. Crafted from 99.7% pure alumina (Al2O3), these crucibles display remarkable purity, ensuring minimal contamination throughout high-temperature procedures. Their premium make-up delivers outstanding resistance to thermal shock, chemical deterioration, and mechanical wear, making them perfect for requiring applications.

Material Make-up : The crucibles are made up of 99.7% light weight aluminum oxide (Al2O3), with trace elements meticulously controlled to improve efficiency. This high-purity alumina framework makes sure stability in oxidizing and lowering ambiences, even at severe temperatures.

Temperature Resistance : These crucibles withstand constant operating temperature levels as much as 1800 ° C( 3272 ° F) and short-term direct exposure to 1900 ° C( 3452 ° F) , relying on the setting. Their reduced thermal expansion coefficient decreases splitting under rapid temperature level variations.

Physical Characteristics :.
– Thickness : ≥ 3.9 g/cm ³, making certain structural honesty under stress and anxiety.
– Hardness : Mohs scale 9, measuring up to sapphire for abrasion resistance.
– Thermal Conductivity : 30 W/m · K (at 20 ° C), stabilizing warmth circulation and insulation.
– Thermal Shock Resistance : Preserves capability after duplicated heating/cooling cycles.

Mechanical Stamina : High compressive strength (≥ 2200 MPa) and flexural strength (≥ 400 MPa) allow longevity in harsh conditions, consisting of heavy-load melting or sintering.

Chemical Resistance : Inert to the majority of acids, alkalis, and molten metals (except hydrofluoric acid and solid antacid at raised temperature levels). Appropriate for usage with rare-earth elements, rare earth components, and hostile chemical representatives.

Applications :.
– Melting, calcining, or sintering metals, alloys, and porcelains.
– High-purity example analysis in laboratories.
– Semiconductor processing, stimulant research study, and ash web content testing.
– Glass, ceramic, and powder metallurgy industries.

Advantages Over Alternatives : Contrasted to lower-purity alumina (e.g., 85% or 95% Al2O3), these crucibles use enhanced thermal stability, longer life expectancy, and minimized risk of sample contamination. They outperform graphite and metallic crucibles in oxidation resistance and purity-critical procedures.

Quality assurance : Manufactured using isostatic pushing and high-temperature sintering, each crucible goes through strenuous examination for dimensional accuracy, surface area coating, and defect-free framework.

Offered Dimensions : Criterion capabilities range from 5 mL to 2000 mL, with custom measurements (wall surface thickness, height, size) readily available upon request. Ideal for tube furnaces, induction heating systems, and standard research laboratory configurations.

These crucibles combine dependability, longevity, and accuracy, making them important for advanced research study, industrial manufacturing, and quality control in severe thermal atmospheres.

(Hight Temperature 99.7% Al2o3 Alumina Ceramic Corundum Crucibles)

Applications of Hight Temperature 99.7% Al2o3 Alumina Ceramic Corundum Crucibles

High-temperature 99.7% Al ₂ O ₃ alumina ceramic corundum crucibles are crucial devices in markets calling for extreme thermal and chemical resistance. Made up of high-purity light weight aluminum oxide, these crucibles supply exceptional stability at temperatures as much as 1800 ° C, very little contamination danger, and remarkable resistance to thermal shock, corrosion, and mechanical wear. Their thick framework and low porosity make sure longevity, making them excellent for requiring applications.

In metallurgy, these crucibles are extensively used for melting and refining high-pelting-point metals such as platinum, palladium, and rare-earth alloys. Their capacity to hold up against rapid temperature level modifications stops splitting, while their inert nature preserves steel purity. Laboratories rely upon them for precise chemical evaluations, consisting of ash screening, thermal gravimetric evaluation, and example preparation, where contamination-free results are essential.

Materials science applications include sintering sophisticated porcelains, calcining powders, and synthesizing substances under controlled high-temperature conditions. The crucibles’ thermal stability ensures consistent performance during long term heating cycles. In semiconductor manufacturing, their 99.7% purity protects against contamination transfer throughout processes like crystal development or doping, crucial for generating high-grade silicon wafers and electronic components.

Jewelry makers utilize these crucibles to melt precious metals like silver and gold, gaining from their resistance to oxidation and disintegration. They are likewise used in glass manufacturing for melting raw materials and in ecological screening to assess contaminants at raised temperature levels. Additionally, their chemical inertness makes them ideal for taking care of destructive substances, consisting of acids and alkalis, in commercial chemical processing.

Compared to platinum or quartz choices, alumina ceramic crucibles supply a cost-effective, durable solution with minimized upkeep. Their adaptability spans nuclear research study, aerospace component construction, and stimulant development, where dependability under extreme conditions is critical. By integrating high-temperature endurance, pureness, and architectural stability, 99.7% Al ₂ O ₃ crucibles stay vital throughout clinical, industrial, and artisanal fields demanding accuracy and sturdiness.

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 Hight Temperature 99.7% Al2o3 Alumina Ceramic Corundum Crucibles

High Temperature 99.7% Al2O3 Alumina Ceramic Corundum Crucibles are widely used in demanding industrial and laboratory settings. Here are answers to five common questions about these crucibles:

1. What is the maximum temperature these crucibles can withstand?
These crucibles are designed for extreme heat, withstanding continuous use up to 1800°C (3272°F) and short-term exposure to 1900°C (3452°F). Their high-purity alumina composition ensures structural stability and minimal thermal expansion, making them ideal for prolonged high-temperature processes like metal melting or sintering.

2. What applications are these crucibles best suited for?
They excel in high-purity environments, such as melting precious metals (platinum, gold), semiconductors, and advanced ceramics. They’re also used in chemical analysis, glass production, and research labs requiring contamination-free results. Their resistance to aggressive chemicals and thermal stress makes them versatile for industrial and scientific use.

3. How resistant are they to thermal shock?
While alumina ceramic has good thermal shock resistance, rapid temperature changes above 300°C/min can cause cracking. For best results, avoid sudden heating or cooling—gradually increase or decrease temperatures, especially when shifting between extremes (e.g., 1000°C to room temperature). Preheating the crucible before high-temperature use improves longevity.

4. Are these crucibles chemically inert?
Yes. The 99.7% alumina composition offers excellent resistance to acids, alkalis, and molten metals (except sodium and fluorine compounds). They are not recommended for hydrofluoric acid, strong phosphoric acid, or highly corrosive molten salts, which can degrade the material over time.

5. How should I handle and maintain these crucibles?
Avoid mechanical impact or abrasive contact. Clean with mild detergents or diluted acids, and use non-metallic tools to prevent scratches. Store in a dry environment to prevent moisture absorption. Regularly inspect for microcracks or wear, and replace crucibles showing significant surface degradation to ensure safety and performance.

(Hight Temperature 99.7% Al2o3 Alumina Ceramic Corundum Crucibles)