Silicon nitride is an engineering ceramic material that combines high strength, high toughness, high temperature resistance, wear resistance, corrosion resistance, and excellent insulation properties.
Compared to alumina ceramics, silicon nitride exhibits superior fracture toughness and thermal shock resistance. Furthermore, silicon nitride is corrosion-resistant, non-conductive, lightweight, and stable at high temperatures, giving it advantages over metals in many applications.
Therefore, silicon nitride ceramics are widely used in new energy vehicles, semiconductor equipment, machinery, aerospace, medical equipment, and other new energy fields.
GORGEOUS CERAMICS (GGS) can customize various structural components (basic structures such as tubes, rods, and rings) according to customer drawings and specific application requirements, and can also customize various irregular-shaped parts. We offer precision machining services of different sizes, precision levels, and processing techniques, including precision grinding, external diameter machining, internal diameter machining, threading, metallization, and brazing. Free samples are also available for reference.
Why use silicon nitride ceramic rods?
If your industry operates in environments with high loads, high speeds, high temperatures, and corrosive substances, then GORGEOUS CERAMICS (GGS) highly recommends using silicon nitride ceramic products.
Traditional metal materials are prone to wear, rust, deformation, or fatigue failure, while ceramics like alumina are susceptible to cracking due to insufficient toughness.
Using custom-designed silicon nitride from GORGEOUS CERAMICS (GGS) perfectly solves these problems.
1. Higher mechanical strength, capable of withstanding greater loads without cracking;
2. Better fracture toughness, less prone to chipping;
3. Wear resistance, significantly extending service life;
4. Excellent thermal shock resistance, less prone to cracking under rapid temperature changes;
5. Low density, lighter than most metal materials.
More and more high-end equipment suppliers are now seeking partnerships with GORGEOUS CERAMICS (GGS), using silicon nitride ceramic structural components to replace stainless steel, tool steel, cemented carbide, and some alumina ceramic parts.
Applications of Silicon Nitride Ceramic Rods
Applications in Bearings and Mechanical Equipment
One of the main applications of silicon nitride ceramic rod-shaped components is as wear-resistant shafts, rolling parts, and high-speed rotating components in mechanical equipment and bearings.
An automation equipment company has been ordering different specifications of zirconia ceramic shafts and silicon nitride ceramic guide rods from GORGEOUS CERAMICS (GGS) for two consecutive years, for use in various high-speed reciprocating equipment. Long-term operational testing has proven the dimensional stability of the ceramic rods and their low lubrication requirements, leading to more stable equipment operation.
Applications in Chemical Equipment
In corrosive chemical environments, silicon nitride components still have their uses. Common rod-shaped components are used as corrosion-resistant guide rods, conveyor equipment parts, and wear-resistant components for pumps and valves.
A customer sought help from GORGEOUS CERAMICS (GGS) because their conveyor equipment’s guide components frequently failed to meet lifespan standards during testing due to corrosion and other reasons. Following our advice, replacing the original metal parts with silicon nitride ceramic parts resulted in a breakthrough, and they are now ordering large quantities to replace the original metal parts.
Used in New Energy Vehicles
Many ceramic components are also widely used in new energy vehicles. For example, aluminum nitride radiators are used for insulation, heat conduction and heat dissipation in power components, while silicon nitride ceramic structural parts can be used for motor insulation components, wear-resistant parts of electric drive systems, high-speed shaft components, etc.
Customization Services Offered by GORGEOUS CERAMICS (GGS)
GORGEOUS CERAMICS (GGS) provides reliable precision machining customization services tailored to your specific needs.
These include outer diameter, length, finishing (external cylindrical grinding, internal hole machining, surface grinding, CNC precision machining), structural shape (round bars, stepped shafts, with holes, slotted, threaded, irregular shapes), surface treatment (fine grinding, polishing, chamfering), and inspection.
|
proyecto |
ability |
illustrate |
|
General dimensional tolerances (after sintering and grinding) |
±0.02～0.05 mm |
Ordinary precision machining |
|
High precision dimensional tolerances |
±0.005～0.01 mm |
Functional Dimensions |
|
Redondez |
≤0.005 mm |
external cylindrical grinding |
|
Coaxiality |
≤0.01 mm |
Shaft parts |
|
Straightness |
≤0.01 mm /100 mm |
Customization required |
|
Llanura |
≤0.005 mm |
Grinding surface |
|
Surface roughness (fine grinding) |
Ra 0.2～0.4 μm |
Ordinary fine-ground surface |
|
Surface roughness (mirror finish) |
Ra ≤0,05 μm |
Polishing, grinding |
|
Apertura mínima |
Φ0.5～1.0 mm |
Customization required |
|
Minimum wall thickness |
0.5～1.0 mm |
Customized, according to structure |
Parameters and properties of silicon nitride ceramics
Technical specifications, material properties, and performance data are typical values and are for reference only. Actual values may vary depending on manufacturing tolerances, testing conditions, material grades, and application environments.
For critical engineering applications, please contact GORGEOUS CERAMICS (GGS Ceramic) for detailed material reports, inspection data, and technical support.
|
Nombre |
Nitruro de silicio |
|||
|
Densidad |
g/cm3 |
3.18-3.40 |
||
|
Resistencia a la compresión |
MPa |
3000 |
||
|
Resistencia a la flexión a 25 °C |
MPa |
760-830 |
||
|
Módulo de Weibull m |
– |
12-20 |
||
|
Fracture Toughness KI |
MPa m1/2 |
6.2-8 |
||
|
Módulo de Young |
GPa |
300 |
||
|
Dureza |
GPa |
15 |
||
|
Coeficiente de Poisson |
– |
0.26 |
||
|
Propiedades físicas del nitruro de silicio |
||||
|
Conductividad térmica a 20 °C |
W/mK |
25-28 |
||
|
Parámetro de choque térmico R1 |
K |
550-690 |
||
|
Parámetro de choque térmico R2 |
Peso neto |
15-18 |
||
|
CTE1 25°C ➞ 250°C |
10-6/K |
1.9 |
||
|
CTE1 25°C ➞ 1000°C |
10-6/K |
3.1 |
||
|
Maximum Temperature (Oxidizing) 2 |
°C |
1400 |
||
|
Constante dieléctrica |
°C |
1200 |
||
|
Resistividad volumétrica a 25 °C |
ohmios-cm |
1014 |
||
Why choose GORGEOUS CERAMICS (GGS)?
GORGEOUS CERAMICS boasts 15 years of experience in ceramic manufacturing and is certified to ISO 9001:2015, IATF 16949:2016, and ISO 14001:2015 environmental management systems. This demonstrates our capability to provide customers with high-quality structural components made of silicon nitride ceramics.
Contact us for a quote now!
Preguntas frecuentes
What industries are silicon nitride ceramic rods suitable for?
Silicon nitride ceramic structural components are used in semiconductor manufacturing equipment, industrial robots, automation equipment, precision machinery, new energy vehicles, aerospace, chemical equipment, medical equipment, food processing machinery, high-speed bearings and moving parts.
Which are the leading silicon nitride ceramic manufacturers in China?
China has a relatively complete advanced ceramic industry chain. Among the advanced ceramic manufacturers in China that have gained international attention are:
GORGEOUS CERAMICS (GGS Ceramic): Focuses on advanced ceramic customization and precision machining, providing various precision ceramic components such as silicon nitride, alumina, zirconium oxide, silicon carbide, and aluminum nitride, capable of meeting customers’ large-volume supply needs.
SANHUAN: One of China’s well-known companies, with strong capabilities in electronic ceramics, structural ceramics, and communication components, suitable for high-precision mass production.
ZHONGCAI: Long-term engaged in the R&D and manufacturing of structural ceramic materials and components such as silicon nitride, with extensive experience in silicon nitride ceramic production, mainly used in wear-resistant and high-temperature resistant applications.
What is the typical lead time for custom silicon nitride ceramic rods manufactured by GORGEOUS CERAMICS (GGS Ceramic)?
Our lead time depends on the product size, processing complexity, order quantity, and inventory availability. For basic, low-processing products, the lead time is relatively short, typically 1-2 weeks. However, for complex, irregularly shaped parts or large-volume orders, a longer production cycle is required. We will estimate the lead time based on the complexity of your provided drawings.
Do you support custom manufacturing based on provided drawings and small-batch trials?
Yes, GORGEOUS CERAMICS (GGS) supports custom manufacturing based on provided drawings and also supports small-batch trial production to help customers verify their design before bulk purchasing.
