Overview of Silicon Nitride Ceramics

Silicon Nitride Ceramics are high-performance materials known for their excellent mechanical properties, including strength, toughness, and resistance to wear, corrosion, and thermal shock, making them ideal for demanding applications in various industries.

Features of Silicon Nitride Ceramics

Exceptional hardness and wear resistance.

Superior mechanical strength and fracture toughness.

Excellent thermal stability and resistance to thermal shock.

High corrosion resistance in aggressive environments.

Low density contributing to lightweight components.

(Si3N4 Silicon Nitride Ceramic Crucible)

Specifications of Si3N4 Silicon Nitride Ceramic Crucible

The Si3N4 silicon nitride ceramic crucible is designed for high-performance applications requiring extreme heat and chemical resistance. It handles temperatures up to 1800°C in oxidizing environments and 1500°C in reducing conditions. This makes it better than metal crucibles for prolonged high-heat use. The material resists thermal shock, so rapid temperature changes do not crack it. This is key in processes like melting metals or sintering where heating and cooling happen fast.

The crucible shows strong chemical stability. It does not react with most acids, alkalis, or molten metals. This keeps samples pure during experiments or production. The non-wetting surface stops molten materials from sticking. Cleaning stays simple, and contamination risks drop.

Mechanical strength is high. Silicon nitride has a hardness of Hv 1400-1600. It supports heavy loads without breaking. Wear resistance ensures long service life even with rough handling or abrasive materials. This reduces replacement costs over time.

Precision manufacturing allows tight control of dimensions. Standard sizes range from 10ml to 5000ml capacity. Custom shapes and thicknesses are possible. Tolerances stay within ±1% to fit lab and industrial equipment.

The crucible works in industries like metallurgy, semiconductors, and aerospace. It melts alloys, processes rare earth metals, and grows crystals. Lab researchers use it for high-purity experiments. Its electrical insulation prevents interference in electronic material processing.

Material purity is over 99%. Low porosity ensures no gas absorption. This suits vacuum environments. The smooth surface finish minimizes particle generation. Handling is safe due to low thermal expansion. It fits furnaces and holders without warping.

Packaging includes protective foam to prevent chipping. Each unit is tested for defects before shipping. Technical support helps select the right size and grade for specific needs.

(Si3N4 Silicon Nitride Ceramic Crucible)

Applications of Si3N4 Silicon Nitride Ceramic Crucible

Si3N4 silicon nitride ceramic crucibles are widely used in high-temperature industrial processes due to their exceptional performance. These crucibles handle extreme conditions better than traditional materials like metals or alumina. Their key advantage lies in excellent resistance to sudden temperature changes. This makes them ideal for applications where rapid heating or cooling is required.

In metal processing, silicon nitride crucibles melt and cast alloys containing reactive elements such as aluminum, titanium, or rare-earth metals. They resist chemical reactions with molten metals, ensuring purity in the final product. Semiconductor manufacturing also relies on these crucibles. They safely contain silicon or gallium arsenide during crystal growth processes. Their stability at high temperatures prevents contamination, critical for producing high-quality electronic components.

The aerospace and energy sectors benefit from silicon nitride crucibles too. They are used to create components for turbines or engines exposed to intense heat and stress. Their low thermal expansion reduces cracking risks under repeated thermal cycles. In solar energy production, they assist in silicon purification, improving the efficiency of photovoltaic cells.

Chemical laboratories use these crucibles for corrosive substance testing. They withstand acids, alkalis, and molten salts without degrading. This durability extends their service life, reducing replacement costs. Compared to graphite or quartz alternatives, silicon nitride crucibles last longer and require less maintenance.

The material’s high strength-to-weight ratio makes handling easier while maintaining structural integrity. It performs reliably in oxygen-free environments like vacuum furnaces. This versatility suits industries ranging from research to heavy manufacturing.

Silicon nitride crucibles support advanced material development. They enable experiments with superconductors or high-performance ceramics. Their reliability in extreme conditions accelerates innovation in fields like nanotechnology and renewable energy.

Cost-effectiveness over time offsets the initial higher investment. Reduced downtime and consistent results make them a practical choice for industrial operations. Their role in precision-driven processes highlights their importance across modern manufacturing and technology sectors.

Company Introduction

Advanced Ceramics founded on October 17, 2014, is a high-tech enterprise committed to the research and development, production, processing, sales and technical services of ceramic relative materials and products.. Since its establishment in 2014, the company has been committed to providing customers with the best products and services, and has become a leader in the industry through continuous technological innovation and strict quality management.

Our products includes but not limited to Silicon carbide ceramic products, Boron Carbide Ceramic Products, Boron Nitride Ceramic Products, Silicon Carbide Ceramic Products, Silicon Nitride Ceramic Products, Zirconium Dioxide Ceramic Products, Quartz Products, etc. Please feel free to contact us.(nanotrun@yahoo.com)

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

Shipment Methods

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

5 FAQs of Si3N4 Silicon Nitride Ceramic Crucible

Si3N4 silicon nitride ceramic crucibles handle extreme heat. They work in labs, factories, and high-temperature processes. These crucibles last longer than metal or other ceramic types.

What is a Si3N4 crucible used for?
These crucibles melt metals, alloys, or chemicals. They work in furnaces or high-heat experiments. Semiconductor manufacturing uses them for processing materials. They suit environments needing thermal stability and corrosion resistance.

How hot can it get without breaking?
Silicon nitride crucibles withstand temperatures up to 1200-1400°C in air. In non-oxidizing atmospheres, they handle over 1600°C. They resist cracking from rapid temperature changes. This makes them good for repeated heating-cooling cycles.

Why pick silicon nitride over alumina or graphite?
Silicon nitride is stronger and tougher than alumina. It resists wear better. Unlike graphite, it doesn’t react with molten metals or oxidize in air. It lasts longer in harsh conditions.

How do I care for it?
Avoid dropping or hitting the crucible. Sudden temperature swings cause stress. Heat or cool it gradually. Clean it with soft brushes or mild solutions after use. Store it dry to prevent contamination.

Can it hold corrosive materials?
Yes. Silicon nitride resists acids, alkalis, and molten salts. It stays stable in most chemical environments. It’s a reliable choice for corrosive or reactive substances.

(Si3N4 Silicon Nitride Ceramic Crucible)