Insulating Heat Dissipation Si3n4 Silicon Nitride Ceramic Substrate for Auto Industry

• Application: Industrial Ceramic
• Material: Silicon Nitride Ceramic
• Type: Ceramic Parts
• Product Name: Silicon Nitride Ceramic Substrate
• Shaping Methods: Tape Casting
• Density: Over 3.2g/cm3
• Model NO.: Standard
• Color: Black Gray
• Surface Treatment: Polished
• Secondary Process: CNC Machining, Fine Grinding
• Tolerance: Od and ID Best to Be 0.05mm
• Certificate: RoHS, Reach, ISO9001:2008
• Feature: High Hardness, High Thermal Shock
• Usage: Ceramic Nozzle, Ceramic Bearing
• Transport Package: Individual Packaging
• Specification: Max. OD to be 800mm
• Trademark: JingHui
• Origin: China
• HS Code: 8547100000
• Production Capacity: 5, 000, 000 Pieces/Month

Product Description

Insulating Heat Dissipation Si3N4 Silicon Nitride Ceramic Substrate for Auto Industry

The prime features of silicon nitride ceramic substrate
1.Low density:  3.2 g/cm³   with lightweight than most of other technical ceramics
2. Superior hardness, it's one of the most hardest technical ceramic than others
3. Great wear resistance due to its exceptional hardness and self-lubricity
4. Low coefficient of thermal expansion and high thermal conductivity (20 W/m.k)
5. Great thermal shock resistance, it's up to 1000ºC under the special atmosphere
6. High mechanical strength and well resistance to impact than other advanced ceramics
7. Heat & high-temperature resistance, The max. service temperature can be up to 1300ºC
8. Chemical and corrosion resistance, resistant to almost all inorganic acids and many organic acids
9. At the same time, Silicon nitride is a high-performance electrical insulation material

The specification of the ceramic substrate

Material option	Silicon nitride(Si3N4), Zirconia (ZrO2),  Alumina(Al2O3), Silicon carbide(SiO2)
Forming methods	Tape casting
Specification	190mm x 140mm x0.32mm,  190mm x 140mm x 0.25mm,  184.4mm x 184.4mm x 0.32mm, 50mm x 50mm x 0.30mm
Precision processing	CNC machining, Precision grinding, Polishing, Lapping,
Tolerance	Length and width to be 0.5mm, thickness  to be 0.05mm
Key parameters	Thermal conductivity over 80 W/m.K, surface roughness to be better Ra0.6
Surface quality	Free of cracks, foreign contamination, mirror surface better than Ra0.6

The description of silicon nitride ceramic substrate
Silicon nitride is a man-made compound synthesized through several different chemical reaction methods. Parts are pressed and sintered by well-developed methods to produce a ceramic with a unique set of outstanding properties. The material is dark gray to black in color and can be polished to a very smooth reflective surface, giving parts a striking appearance. High-performance silicon nitride materials were developed for automotive engine wear parts, such as valves and cam followers, and proven effective. The cost of the ceramic parts never dropped enough to make the ceramics feasible in engines and turbochargers. The very high-quality bodies developed for these demanding high-reliability applications are available today and can be used in many severe mechanical, thermal, and wear applications.

The typical application of silicon nitride ceramic substrates
New energy vehicle IGBT, automotive inverter, reducer, etc.
 

Our capability and strength

We have in-housing comprehensive manufacturing types of equipment, including forming, sintering, CNC machining, precision grinding, laser cutting, and so on, it helps us to control the quality very well. Also, it greatly benefits cost control.

The state of the art manufacturing equipment






Rigorous Quality-control System




Remark:
We have the complete quality-control system per ISO9001, including IQC, IPQC, QA, and OQC process.





FAQs (Frequently Asked Questions)
Q1. Are you a factory or trading company?
A: We are a manufacturer with over 15 years of experience. You are welcome to visit our factory.

Q2: Do you send a sample to check?
A: Sure, the sample is free and freight collect.

Q3: When will you ship it?
A: If the products are in storage, we'll ship within 48 hours

Q4: When can I get the price?
A: We regularly quote within 24 hours after we get your inquiry. If you are in urgent need of getting the price.
Please call us or tell us in your email so that we will proceed with your inquiry as a priority.

Q5: Is it available to provide customized products?
A: We always support custom-made demand as per different materials, dimensions, and designs.