High quality high purity silicon nitride ceramic plate

Overview of Silicon Nitride Ceramic Plate

Silicon Nitride Ceramic Plate is a high-performance ceramic material. Silicon Nitride Ceramic Plate is characterized by high strength and hardness, can withstand high temperatures without deformation, and has excellent oxidation and corrosion resistance. Meanwhile, Silicon Nitride Ceramic Plate has good wear resistance and low coefficient of friction, and is widely used in machinery, chemical industry, electronics, etc. It can be used in the manufacture of cutting tools, bearings, high-temperature furnace components, and carrier plates in semiconductor chip manufacturing.

Features of Silicon Nitride Ceramic Plate

Silicon Nitride Ceramic Plate has the following significant features:

High strength and hardness: Silicon Nitride Ceramic Plate has extremely high strength and hardness, which is second only to diamond and a few other substances. This makes it excellent in wear and impact resistance, able to withstand large external forces without deformation or damage, and can be used to manufacture wear-resistant parts, cutting tools, etc., greatly improving the service life of these parts.

Good high-temperature resistance: silicon nitride ceramic plate has excellent high-temperature resistance and can maintain good mechanical properties and stability in high-temperature environments. It can withstand high temperatures above 1200°C and is not easy to soften, deform or oxidize at high temperatures, so it is commonly used in aerospace, metallurgy, ceramic sintering and other high-temperature fields, such as the lining material of high-temperature furnaces, hot end parts of aviation engines, etc.

Strong chemical stability: silicon nitride ceramic plate has excellent chemical stability and strong corrosion resistance to acids, alkalis, salts and other chemicals. In harsh chemical environments, it can maintain its own performance without erosion and destruction and is suitable for equipment and parts in contact with corrosive media in the chemical and petroleum industries, such as reactor lining and piping.

Good insulation: Silicon Nitride ceramic plate is a good electrical insulation material, has a high resistivity and low dielectric constant, can effectively prevent the passage of electric current, and at the same time, in the high-frequency electric field can also maintain good insulating properties, commonly used in the electronics industry in the integrated circuit substrate, electronic components packaging and other fields, to protect the normal operation and safety of electronic equipment.

Specifications table of Silicon Nitride Ceramic Plate

Property	Unit	Typical Value
Color	–	Grey
Density	g/cm³	3.21
Compressive Strength	MPa	3000
Flexural Strength	MPa	800
Weibull – Modulus	–	15
Fracture Toughness	MPa·m¹/²	6.5
Young’s Modulus	GPa	320
Poisson Ratio	–	0.28
Hardness (Vickers, HV1)	GPa	16
Maximum Temperature (Inert Gas)	℃	1200
Maximum Temperature (Air)	℃	1100
Thermal Conductivity (at 20℃)	W/m·K	28
Thermal Conductivity (at 1000℃)	W/m·K	16
Thermal Expansion (20 – 100℃)	10⁻⁶/K	2
Thermal Expansion (20 – 1000℃)	10⁻⁶/K	3.5
Thermal Shock Parameter R1	K	600
Thermal Shock Parameter R2	W/mm	15
Resistivity (at 20℃)	Ω·cm	10¹²
Resistivity (at 800℃)	Ω·cm	10⁷

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Applications of Silicon Nitride Ceramic Plate

Silicon Nitride Ceramic Plate has a wide range of applications in many fields due to its excellent performance:

Mechanical industry: Using its high hardness and wear resistance, it can be made into cutting tools, which can realize high-speed cutting and dry cutting, improve processing efficiency and quality, and reduce processing costs. At the same time, silicon nitride ceramic plate can also be used to manufacture bearings; its low coefficient of friction and good wear resistance can make the bearings in high-speed, high load conditions, stable operation, and prolong the service life.

Electronic industry: Due to its good insulating properties and thermal stability, silicon nitride ceramic plate is widely used in the field of electronic packaging, which can be used as the substrate of integrated circuits and can effectively isolate the circuit components to prevent leakage and signal interference, and also can quickly dissipate heat to ensure that the chip and other electronic components work in a stable temperature environment.

Aerospace field: Silicon nitride ceramic plate, with its characteristics of high-temperature resistance, high strength and low density, makes it an ideal material for aviation engine components. For example, it can be used to manufacture turbine blades, combustion chambers and other components, which can maintain good performance in the harsh environment of high temperature and high pressure, improve the efficiency and reliability of the engine, reduce the weight of the engine, and thus enhance the overall performance of the aircraft.

Chemical industry: with excellent chemical stability and corrosion resistance, silicon nitride ceramic plates can be made into chemical reactor lining, piping, valves and other components. The chemical production process containing strong acid, strong alkali and other corrosive media can effectively resist corrosion to ensure the normal operation of the equipment, reduce the frequency of equipment maintenance and replacement, and reduce production costs.

Company Profile

RBOSCHCO is a trusted global chemical material supplier & manufacturer with over 12 years of experience in providing super high-quality chemicals and Nanomaterials. The company exports to many countries, such as the USA, Canada, Europe, UAE, South Africa, Tanzania, Kenya, Egypt, Nigeria, Cameroon, Uganda, Turkey, Mexico, Azerbaijan, Belgium, Cyprus, Czech Republic, Brazil, Chile, Argentina, Dubai, Japan, Korea, Vietnam, Thailand, Malaysia, Indonesia, Australia, Germany, France, Italy, Portugal etc. As a leading nanotechnology development manufacturer, RBOSCHCO dominates the market. Our professional work team provides perfect solutions to help improve the efficiency of various industries, create value, and easily cope with various challenges. If you are interested, please send an email to sales1@rboschco.com

Payment Term

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

Shipment Term

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

5 FAQs of Silicon Nitride Ceramic Plate

Q1: What is the maximum operating temperature of silicon nitride ceramic plates?

Silicon nitride ceramic plates can be used stably up to 1400°C in an oxidizing atmosphere and even up to 1850°C in a neutral or reducing atmosphere. Its low coefficient of thermal expansion (3.1×10-⁶/°C) and thermal shock resistance make it less prone to deformation or cracking in high-temperature environments. For example, aero-engine combustion chamber components can still maintain structural stability above 1200℃.

Q2: How to process silicon nitride ceramic plates?

Special processing techniques are required:

Precision grinding: Using a diamond grinding wheel or magnetorheological polishing, the surface roughness can be reduced to less than 10nm.

Ultrasonic-assisted processing: Reduce cutting force through high-frequency vibration and reduce thermal damage and cracks.

Laser cutting: Suitable for complex shapes with a kerf accuracy of ±0.05mm.

Reaction sintering: Near-net molding through pre-nitriding treatment, shrinkage less than 0.1%.

Q3: How to maintain the silicon nitride ceramic plate?

Cleaning: Wipe with a neutral cleaner and soft cloth; avoid the acidic or alkaline solutions.

Storage: Dry and ventilated environment to prevent moisture from causing performance degradation.

Repair: Minor damage can be dealt with by polishing; serious cracks need to be filled with matching material or replacement parts.

Q4: What is the abrasion resistance of silicon nitride ceramic plates?

Silicon nitride ceramic plates have a Vickers hardness of 15-16 GPa, second only to diamond and cubic boron nitride. In ore grinding equipment, the wear life of silicon nitride ceramic liners is more than 5 times that of traditional metal materials. Self-lubrication makes it maintain a low coefficient of friction (0.1-0.3) under non-lubricating conditions, reducing energy loss.

Q5: What are the applications of silicon nitride ceramic plates in the semiconductor industry?

As an IGBT module substrate, its coefficient of thermal expansion (3.2×10-⁶/°C) is highly compatible with third-generation semiconductor materials such as SiC and GaN, and it can withstand the thermal shock of high currents (>1000A) and high-frequency switching. For example, the use of silicon nitride substrates in new energy vehicle motor drive systems has extended the life of IGBT modules by 30%.