Overview of High Hardness Silicon Nitride Ceramic Crucible for Melting

High Hardness Silicon Nitride Ceramic Crucible for Melting is a high-performance advanced ceramic renowned for its exceptional combination of thermal shock resistance, high strength, toughness, and excellent wear and corrosion resistance. It is a material of choice for demanding applications across various industries, from automotive and aerospace to industrial and medical.

Features of High Hardness Silicon Nitride Ceramic Crucible for Melting

l Excellent Thermal Shock Resistance: Withstands rapid temperature changes without cracking.

l High Strength & Hardness: Maintains mechanical properties at both room and elevated temperatures.

l Good Fracture Toughness: Superior to many other technical ceramics, providing better resistance to chipping and breakage.

l Low Density & Lightweight: Significantly lighter than steel and many metals.

l Wear & Corrosion Resistance: Ideal for components exposed to abrasive and corrosive environments.

l Electrical Insulation: Offers good dielectric properties.

 

Specification of High Hardness Silicon Nitride Ceramic Crucible for Melting

This silicon nitride ceramic crucible melts metals at high temperatures. It withstands extreme heat very well. The maximum working temperature reaches 1600°C. This crucible resists thermal shock effectively. Rapid temperature changes cause less cracking. You can heat it fast. You can cool it fast. The material offers high hardness. It scores around 90 HRA. This hardness prevents wear. Abrasion damage is minimal. The crucible has high density. Density exceeds 3.2 g/cm³. High density stops liquid metal penetration. Your melt stays pure. Chemical resistance is excellent. It stands up to molten metals. It stands up to slags. Corrosion damage is reduced. Crucible life gets longer. Surface finish is smooth. The interior is polished. This stops material sticking. Cleanout becomes easier. Typical sizes exist. Common capacities are 50ml to 500ml. Larger sizes are possible. Wall thickness is sufficient. Strength is maintained. Heat transfer works well. High purity raw materials are used. Impurity levels are low. This keeps your melted metals clean. Contamination risks are small. This crucible suits precious metals. Gold melting works. Silver melting works. Platinum melting works. It also handles non-ferrous alloys. Aluminum alloys work. Copper alloys work. Research labs use it. Small foundries use it. Jewelers find it useful. It performs reliably under tough conditions. Repeated heating cycles are fine. Long service life results.

Applications of High Hardness Silicon Nitride Ceramic Crucible for Melting

High hardness silicon nitride ceramic crucibles handle extreme melting jobs well. These crucibles stand up to intense heat and tough conditions. They resist cracking when temperatures change fast. This thermal shock resistance matters for repeated heating and cooling cycles. Silicon nitride crucibles also fight off chemical attacks. They don’t react easily with most molten metals and alloys. This makes them very durable. Their high hardness means they resist wear and scratching better than softer materials. This toughness extends the crucible’s working life significantly.

These properties make silicon nitride crucibles essential for demanding melting tasks. They work perfectly for melting reactive metals. Titanium, zirconium, and platinum group metals melt safely inside them. The crucible material doesn’t contaminate the melt. This purity is critical for high-performance alloys. Semiconductor manufacturers rely on them for processing silicon and gallium arsenide. The crucibles ensure no unwanted elements enter the sensitive melt. Solar cell production uses them for melting silicon too. Purity directly affects solar cell efficiency. Aerospace foundries need them for superalloys. Components like turbine blades require perfect material integrity. Silicon nitride crucibles deliver that.

The crucibles also handle corrosive slag well. This is important in metal refining processes. They outperform traditional crucibles like alumina or graphite. Alumina crucibles can crack under thermal stress. Graphite crucibles can introduce carbon into the melt. Silicon nitride avoids these problems. Its strength at high temperatures allows stable operation. Furnace operators get consistent results batch after batch. This reliability reduces downtime and replacement costs. The crucible investment pays off through longer service life and better product quality. Demand grows in advanced materials processing.

Company Profile

Tanki New Materials Co.Ltd. focus on the research and development, production and sales of ceramic products, serving the electronics, ceramics, chemical and other industries. Since its establishment in 2015, 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 Aerogel, Aluminum Nitride, Aluminum Oxide, Boron Carbide, Boron Nitride, Ceramic Crucible, Ceramic Fiber, Quartz Product, Refractory Material, Silicon Carbide, Silicon Nitride, ect. please feel free to contact us.

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 Hardness Silicon Nitride Ceramic Crucible for Melting

People want crucibles that last. Silicon nitride ceramic crucibles are very hard. This makes them strong against scratches. They handle tough jobs well.

What makes silicon nitride good for crucibles?
Its hardness is key. It resists wear from scraping or stirring. It also handles sudden temperature changes without cracking. It doesn’t react with many metals. This keeps your melt pure.

Why choose high hardness for melting?
Hardness fights erosion. Molten metals constantly move. Hard crucibles last longer. They resist wear better than softer ceramics. You get more melts per crucible.

How hot can it get?
Silicon nitride stays strong up to about 1200°C in air. Sometimes higher in controlled atmospheres. It keeps its shape and strength near its limit. Always check the maker’s specific rating.

Any special handling needed?
Handle it carefully. It’s hard but can break if hit hard. Avoid sharp impacts. Don’t drop it. Follow heating and cooling steps slowly. Avoid thermal shock.

How long does it last?
Life depends on what you melt, the temperature, and how you use it. High hardness means it wears down slower. It handles thermal stress well. It generally lasts much longer than graphite or softer ceramics. It saves money over time.