silicon nitride powder
Product Description
Silicon nitride powder is a kind of high hardness, high heat resistance ceramic material, with excellent mechanical properties, chemical stability and electrical properties. It is a compound composed of silicon and nitrogen and is usually gray or white in color. Silicon nitride powder has high hardness, high wear resistance, high chemical stability and good insulation properties. Silicon nitride powder is widely used in aerospace, automotive, machinery, electronics and other fields, for the manufacture of high-temperature bearings, seals, automotive engine parts and other key components.
Specification
| Item No | HR-Si3N4-1 | HR-Si3N4-2 | HR-Si3N4-3 |
| Average particle size | 20nm | 800nm | 1um |
| Purity（%） | 99.9 | 99.9 | 99.9 |
| Specific surface area（m2/g） | 93 | 65 | 49 |
| Bulk density（g/cm3） | 0.09 | 0.23 | 0.69 |
| Density（g/cm3） | 3.4 | 3.4 | 3.4 |
| Crystal form | Amorphous | αphase | βphase |
| colour | white | Gray-white | Gray-white |
Application
Quality control system
Huarui has strict quality management system. We test our products first after we finish our production, and we test again before every delivery, even sample. And if you need, we would like to accept third party to test. Of course if you like, we could provide sample to you to test.
Our product quality is guaranteed by Sichuan Metallurgical Institute and Guangzhou Institute of Metal Research. The long term cooperation with them can save a lot of testing time for customers.
