Characteristics of Silicon Nitride Rod

Superior Corrosion Resistance

Silicon nitride rods have superior corrosion resistance and can be used in strong acids and alkalis with the exception of concentrated HF.

High-Temperature Resistance

Silicon nitride rods are extremely high-temperature resistant. They can withstand temperatures of up to 1500°C in a reducing atmosphere and 1200°C in an oxidizing atmosphere.

Electrical Insulation

Silicon nitride rods are advantageous for using as insulating materials because they are non-magnetic and electrically insulating.

High Strength and Hardness

Silicon nitride rods have low-density, high hardness and high strength, and can serve as wear-resistant materials.

Low Thermal Expansion Coefficient

Silicon nitride rods have a low thermal expansion coefficient of 3.2×10-6/K, which is 30% that of alumina ceramics, and 40% that of zirconia ceramics. Consequently, they can withstand drastic temperature changes without cracking.

Rods of silicon nitride composition and structure

Major components of silicon (Si) and nitrogen (N) combined in a hexagonal crystal lattice arrangement make up silicon nitride rods. Their mechanical integrity and thermal characteristics are much enhanced by this crystal structure. Usually, the rods are made by compacting powder and then sintering it at high temperatures under regulated conditions to produce thick, uniform structures.

Mechanical Properties

Extreme mechanical strength and toughness are two of silicon nitride rods' distinguishing features. They are more fractally robust than conventional ceramics like zirconia and alumina combined. This characteristic makes silicon nitride rods very resistant to mechanical damage, including chipping or breaking, even under very stressful or impacting situations.

Chemistry and Thermal Stability

Remarkably thermally stable, silicon nitride rods can tolerate temperatures well beyond 1000°C without appreciably changing in size or deteriorating structurally. Applications where exposure to high temperatures is frequent, like industrial furnaces, aircraft components, and automobile engines, find them perfect because of their thermal resistance.

Rods made of silicon nitride show outstanding chemical resistance in addition to thermal stability. Because they don't corrode from acids, alkalis, or many other chemical compounds, they may be used in difficult conditions where exposure to corrosive agents is a worry.

Applica

Applications in industry are many because of silicon nitride rods' versatility:

Because of their great wear resistance, low friction coefficient, and high hardness, they are used in mechanical engineering in bearings, cutting tools, and wear-resistant components.

Aerospace: Where high temperature resistance and mechanical dependability are essential, silicon nitride rods find use in turbine components, engine parts, and thermal insulation systems.

Automotive: Their thermal shock resistance and mechanical stress resistance find uses in engine, exhaust, and braking components.

Medical: Because silicon nitride rods are biocompatible and resistant to chemical corrosion in biological conditions, they are employed in medical equipment and implants including dental implants and hip prosthesis.

Size and thickness

Customized Sizes and Thicknesses

We at UNIPRETEC are aware that the application situation of every client is different. For various technical and scientific research demands, we thus provide a large selection of silicon nitride rod size and thickness choices, ranging from small thin-walled tubes to hefty solid rods. We can carefully regulate the thickness and size of our goods thanks to our production method, which guarantees dependability and consistency.

Application-Driven Design

The demands of several applications—high temperature settings, chemical stability standards, mechanical strength, etc.—are taken into consideration when designing our silicon nitride rods. Our silicon nitride rods may provide the needed performance whether used as a substrate or insulating material in the electronics sector, a support structure in a high-temperature furnace, or a tool in machining.

Advanced Manufacturing Processes

High density and homogeneity of silicon nitride rods are ensured by use of sophisticated production procedures such as hot pressing sintering and reaction sintering. These procedures enable us to provide items with intricate shapes and sizes in addition to guaranteeing the function and quality of the product.

Products, both standard and customized

Standard silicon nitride rod diameters and thicknesses are available from UNIPRETEC, which also offers customized services to suit particular requirements. Numerous sizes are available in our regular product library to satisfy the market's typical requirements. Our staff of engineers will collaborate directly with clients to develop and produce silicon nitride rods that specifically address their requirements for specialized applications.