Overview of Mullite Crucible

Mullite crucibles are made from a high-performance ceramic material composed primarily of alumina (Al₂O₃) and silica (SiO₂). Known for their excellent thermal stability and mechanical strength, mullite crucibles are widely used in high-temperature applications such as melting metals, glass, and ceramics. They offer superior resistance to thermal shock and chemical attack, making them indispensable in both laboratory and industrial settings.

Features of Mullite Crucible

Thermal Shock Resistance: Exceptional ability to withstand rapid temperature changes without cracking.
High Mechanical Strength: Strong and durable, even at elevated temperatures.
Chemical Stability: Resistant to most chemicals, ensuring minimal contamination during processes.
Temperature Range: Can operate effectively at temperatures up to 1650°C.
Low Thermal Expansion: Minimal expansion or contraction with temperature changes, ensuring dimensional stability.
Non-Reactive: Does not react with the materials being processed, preserving sample purity.
Versatility: Suitable for a wide range of applications including metallurgy, glass manufacturing, and laboratory experiments.

(High quality 95% Al203 refractory Alumina ceramic Crucible box tray sagger kiln shelves corundum mullite Ceramic Saggar)

Specifications of High quality 95% Al203 refractory Alumina ceramic Crucible box tray sagger kiln shelves corundum mullite Ceramic Saggar

High-grade 95% Al ₂ O ₃ refractory alumina ceramic crucible boxes, trays, saggers, kiln racks, and associated parts are engineered for extreme thermal and mechanical stability in high-temperature commercial applications. Composed of 95% alumina (Al ₂ O ₃) with sophisticated corundum and mullite stages, these porcelains deliver extraordinary resistance to thermal shock, chemical deterioration, and use, making them ideal for kiln shooting, metallurgy, glassmaking, and research laboratory processes.

** Product Structure **: The primary material is 95% pure alumina, strengthened with diamond (α-Al ₂ O ₃) for firmness and mullite (3Al ₂ O ₃ · 2SiO ₂) to boost thermal shock resistance. This blend makes sure marginal deformation and high architectural honesty under prolonged thermal stress.

** Thermal Qualities **: With an optimum solution temperature level of up to 1700 ° C(3092 ° F ), these parts stand up to repeated heating and cooling cycles without cracking. The reduced thermal expansion coefficient (7.2– 8.8 × 10 ⁻⁶/ ° C) and high thermal conductivity (20– 30 W/m · K) make certain even warmth circulation and quick temperature level transitions.

** Mechanical Stamina **: High compressive toughness (2200– 2600 MPa) and flexural toughness (300– 350 MPa) permit these ceramics to sustain hefty tons in kilns or heating systems. The dense, low-porosity framework (noticeable porosity ≤ 0.5%) lessens gas leaks in the structure and resists slag penetration.

** Chemical Resistance **: Inert to acids, alkalis, and molten metals, these ceramics appropriate for destructive settings. They display absolutely no sensitivity with many chemicals, ensuring purity in processes like driver production or precious metal melting.

** Applications **: Made for sintering, annealing, and glazing of porcelains, metals, and electronic components. Usual uses include laboratory crucibles, kiln furniture (saggers, racks), semiconductor handling trays, and foundry applications.

** Modification **: Readily available in typical and customized forms (cylindrical, rectangle-shaped, and so on) with exact dimensional resistances ( ± 0.5%). Surface areas can be brightened or left unglazed for particular thermal or friction requirements.

** Benefits **: Outmatches conventional products like stainless steel or lower-grade porcelains with longer lifespan, minimized power consumption, and minimal upkeep. Ideal for industries prioritizing accuracy, toughness, and thermal performance.

** Life expectancy **: Immune to bending, splitting, and disintegration, these parts use extended life span even in continuous high-temperature operations, ensuring cost-effective performance for industrial and laboratory setups.

(High quality 95% Al203 refractory Alumina ceramic Crucible box tray sagger kiln shelves corundum mullite Ceramic Saggar)

Applications of High quality 95% Al203 refractory Alumina ceramic Crucible box tray sagger kiln shelves corundum mullite Ceramic Saggar

Top quality 95% Al ₂ O ₃ refractory alumina ceramic crucibles, boxes, trays, saggers, kiln racks, and corundum mullite ceramic saggers are vital parts in high-temperature commercial processes. These items are engineered from costs alumina ceramic, supplying phenomenal thermal stability, chemical resistance, and mechanical toughness, making them excellent for demanding applications throughout different markets.

** Crucibles ** made from 95% alumina ceramic are commonly used in metallurgy, glassmaking, and laboratories for melting metals, alloys, and advanced materials. Their high purity ensures marginal contamination, while their resistance to thermal shock and corrosive environments guarantees longevity. ** Boxes and trays ** act as durable containers for heat therapy, sintering, and firing processes in porcelains, electronics, and powder metallurgy. They protect sensitive products from contamination and hold up against repeated thermal cycling without destruction.

** Saggers ** (or ceramic saggers) are vital in kilns for holding ceramic ware, catalysts, or electronic components during firing. Their high alumina material ensures they endure extreme temperature levels (approximately 1700 ° C) and withstand chemical communications with lusters or fluxes. ** Kiln shelves ** made from alumina ceramic offer robust assistance for hefty loads in high-temperature atmospheres, reducing warping and expanding service life. Their reduced thermal development and high thermal conductivity guarantee also warm distribution, boosting process efficiency.

** Corundum mullite ceramic saggers ** combine alumina and mullite, offering enhanced thermal shock resistance and mechanical durability. This makes them ideal for applications needing prolonged direct exposure to aggressive thermal or chemical conditions, such as in the manufacturing of lithium-ion battery materials, progressed ceramics, or refractory parts.

These alumina ceramic items are likewise utilized in semiconductor production, aerospace, and energy markets, where accuracy and dependability are vital. Personalized in size and shape, they deal with particular procedure demands while maintaining structural stability under anxiety. Their non-reactive nature and ability to endure fast temperature level adjustments lower downtime and functional costs.

In recap, 95% Al ₂ O ₃ alumina ceramic crucibles, saggers, trays, and kiln racks are essential in sectors demanding high-temperature resilience, chemical inertness, and long-lasting efficiency. Their adaptability and durability make them an affordable solution for enhancing industrial procedures, making certain regular quality, and minimizing maintenance demands.

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 quality 95% Al203 refractory Alumina ceramic Crucible box tray sagger kiln shelves corundum mullite Ceramic Saggar

What is the maximum temperature a 95% Al₂O₃ alumina ceramic saggar can withstand?
High-quality 95% Al₂O₃ alumina ceramic saggars can withstand continuous temperatures up to 1700°C (3092°F) and short-term peaks up to 1800°C (3272°F), making them ideal for high-temperature kiln applications like firing ceramics, metals, or advanced materials. Their high alumina content ensures minimal thermal expansion and excellent thermal shock resistance.

How does the alumina content affect performance?
The 95% alumina composition enhances mechanical strength, wear resistance, and thermal stability compared to lower-grade ceramics. It resists chemical corrosion, reduces deformation under extreme heat, and maintains structural integrity over repeated heating cycles. This makes it suitable for demanding industrial environments, such as sintering, glass melting, or precision laboratory processes.

What applications are these saggars best suited for?
These saggars are widely used in kilns for ceramic firing, metallurgy, semiconductor processing, and glass production. They serve as containers or supports for protecting sensitive materials from contamination, managing high-temperature reactions, or holding molten substances. Their durability also makes them ideal for reusable labware, furnace components, or heat-treatment trays.

How do I clean and maintain an alumina ceramic saggar?
Avoid sudden temperature changes to prevent cracking. Clean residues with a soft brush, mild detergent, or diluted acid (for stubborn deposits). Do not use abrasive materials. Store in a dry environment to prevent moisture absorption. Inspect for cracks or wear between uses, as damage can compromise thermal performance. Proper handling extends lifespan to hundreds of cycles.

What’s the difference between corundum and mullite saggars?
Corundum (95% Al₂O₃) saggars offer higher temperature resistance, mechanical strength, and chemical inertness than mullite (Al₂O₃-SiO₂ blend). Mullite has better thermal shock resistance but lower maximum operating temperatures (~1600°C). Corundum is preferred for extreme-heat applications, while mullite suits moderate thermal cycling. Both are durable but differ in cost and performance trade-offs.

(High quality 95% Al203 refractory Alumina ceramic Crucible box tray sagger kiln shelves corundum mullite Ceramic Saggar)