Silicon Nitride

Introduction of Silicon Nitride

Silicon nitride (Si3N4) is an inorganic nonmetallic compound of silicon and nitrogen. Si3N4 ceramic materials maintain their strength at extremely high temperatures. Si3N4 materials have amazing chemical corrosion resistance, biocompatibility and electrical insulation characteristics, are often used to manufacture bearings, turbine blades, permanent molds and other mechanical parts and medical implants. As shown in Fig. 1, the Si3N4 scaffolds obtained by 3D printing had excellent bioactivity.

Cuboid and cylindrical Si3N4 scaffolds obtained by 3D printing with 16 layers.Fig. 1. Cuboid and cylindrical Si3N4 scaffolds obtained by 3D printing with 16 layers. (Sainz MA.; et al., 2020)


As a professional 3D printing service company, CD BioSciences provides Si3N4 ceramic materials that exceed the standards of various industries, and can customize Si3N4-based composites to improve the comprehensive performance of materials according to specific needs.

Si3N4 materials have ultra-high temperature strength, chemical corrosion resistance, wear resistance and other advanced properties, and are one of the most excellent comprehensive properties in the ceramic family. Especially in the field of high temperature structural ceramics, Si3N4 materials are the most potential new materials to replace nickel-based alloys. However, as one kind ceramic material, Si3N4 materials have the disadvantage of crispy and easily cracked, and it is difficult to form by subtractive molding methods such as traditional mechanical processing. Therefore, the application field for Si3N4 ceramic 3D printing is continuously expanding.

CD BioSciences offers Si3N4 and related composite materials, and the material quality is higher than the most harsh industry standards. The parts made with our Si3N4 materials are capable of operating in extreme environments that challenge the limits of traditional materials, offering unparalleled advantages in high temperature, high pressure, and corrosive environments.

  • Density
  • Thermal expansion coefficient
  • Thermal conductivity
  • Bending strength
  • Young's modulus

Here is a list of the Si3N4 materials offered by CD BioSciences to support your production.

Place your order here.

Cat# Product Name Price
SN0001 Silicon Nitride Inquiry
Inventory: In-stock
Density, g/cm3: >3.13
Young's Modulus, GPa: 290
Thermal Expansion Coefficient, µm/(m.°C): -50°C 0.67, 20°C 1.23, 60°C 1.52
Thermal Conductivity, W/(m.K): 23.6
Four-Point Bending Strength , MPa: 881
Weibull Modulus: 11
Description: Silicon Nitride is one of the most chemically resistant materials, with impact resistance, excellent biocompatibility and electrical insulation. It is used in the manufacture of pump and valve components, semiconductors, etc.

*If the Si3N4 materials offered above can not meet your needs, please contact us for our exclusive Si3N4 materials customization service right now. All services are available on a 24/7/365 basis.

Applications of Our Silicon Nitride

3D printed Si3N4 materials can be used in the manufacture of pumps, valves, bearings, heating tubes, impellers and other devices. In addition, Si3N4 materials have the potential for bone integration and anti-infection properties, which can be used in medical engineering to create permanent implants.

  • Aerospace industries
  • Electronic communications
  • Medical industries
  • Automobile industries
  • Energy

Advantages of Our Silicon Nitride

  • Excellent intensity at high temperature.
  • Excellent electrical insulation.
  • Light weight.
  • Good biocompatibility.
  • Low cost.
  • Shorten the delivery cycle.
  • Improve design freedom.

Si3N4 materials are one of the hardest and most durable ceramic materials, and are an indispensable key material in industrial technology, especially in cutting-edge technology. Si3N4 materials occupy an increasingly important position in the 3D printing ceramics market, and have a wide range of application prospects. CD BioSciences is committed to providing global customers with Si3N4 ceramic materials and offers customization of Si3N4-based composites. If you have any requirements about our Si3N4 materials, please contact us.


  1. Sainz MA.; et al. (2020). Protein adsorption and in vitro behavior of additively manufactured 3D-silicon nitride scaffolds intended for bone tissue engineering. Mater Sci Eng C Mater Biol Appl. 115:110734.
For research use only, not intended for any clinical use.