GB/T 34216-2017 in English
VALIDNanoscale silicon nitride
- Issued on:2017-09-07
- Implemented on:2018-06-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$156.00
《GB/T 34216-2017纳米氮化硅》由TC279(全国纳米技术标准化技术委员会)归口,TC279SC1(全国纳米技术标准化技术委员会纳米材料分会)执行,主管部门为中国科学院。
Introduction
National Standard of the People's Republic of China GB/T 34216—2017 In-depth Interpretation of Nano Silicon Nitride
Overview of the Standard
This standard specifies the grades, technical requirements and test methods of nano silicon nitride, and is applicable to nano silicon nitride produced by gas phase synthesis.
Interpretation of Core Clauses
Chemical Composition Requirements
Nano silicon nitride The main content (mass fraction) should be ≥97.0%, oxygen content ≤1.0%, and chloride ion ≤0.05%. The total amount of other impurities shall not exceed 1.5%.
Physical performance indicators
| Project | Median particle size d50/nm | Bulk density/(g/cm³) | Specific surface area/(m²/g) | Crystal form |
|---|---|---|---|---|
| Typical grade NF-Si₃N₄-30 | 25~34 | ≤0.1 | ≥45 | Amorphous |
Comparative analysis with other nanomaterials
| Indicator Dimensions | Nano Silicon Nitride | Nano Alumina | Nano Silicon Carbide |
|---|---|---|---|
| Chemical Stability | Excellent Thermal Stability and Anti-Oxidation Ability | Good | Excellent |
| Hardness (Mohs) | About 8-9 | 7-8 | 9 |
| Applicable Fields | Microelectronics, Engine Blades, Nuclear Power Engineering | Ceramics, Refractory Materials | Wear-Resistant Coating, Semiconductor |
Suggestions for the implementation of the standard
Precautions for the production process
- Ensure the quality of raw materials, especially the selection of nitrogen and carbon sources.
- Strictly control the process parameters of gas phase synthesis, including reaction temperature, pressure and gas flow rate.
- Regularly calibrate the particle size analysis instrument to ensure the accuracy of the test results.
Inspection and quality control
It is recommended that enterprises establish a sound internal quality control system and conduct type inspection and factory inspection in strict accordance with the requirements of the standard. Focus on monitoring key indicators such as chemical composition, particle size distribution and specific surface area.
Safety and health
Since nano silicon nitride is a powder material, it is recommended to wear protective equipment during the production process and take effective ventilation measures to ensure compliance with national occupational health standards.

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