High Purity Silicon Nitride Powder
High Purity Silicon Nitride Powder Description
Silicon nitride is stable in the presence of nitric, sulfuric and hydrochloric acids, and reacts less well with orthophosphoric acid. However, it reacts much more strongly with hydrofluoric acid. Silicon nitride is decomposed by alkali melts, oxides and carbonates of alkali metals. It does not react with chlorine up to 900°C, hydrogen sulfide up to 1000°C and hydrogen up to 1200°C. It does not react with Al, Pb, Sn, Zn, Bi, Cd, Cu melts; however, it forms silicides with transition metals and silicates with metal oxides at temperatures above 1200 °C. Oxidation of silicon nitride in air begins at temperatures above 900 °C.
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The Specification of High Purity Silicon Nitride Powder
| Item | Purity | ACCESS POINTS | SSA | Color | Crystalline stratum | Morphology | Density of bulk materials |
| S3N4 | >99.9% | 20nm | 93m2/g. | White | Amorphous | spherical | 0.09 g/cm3 |
| S3N4 | >99.9% | 800 nm | 65m2/g. | Grey White | Alpha | cubic with a center on the face | 0.23 g/cm3 |
| S3N4 | >99.9% | 800 nm | 49m2/g. | Light Green Grey | Alpha | cubic with a center on the face | 0.69 g/cm3 |
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FAQ
Q: What's the payment term?
A: We accept T/T, D/P, L/C.
Q: What are your strengths?
A: We are a manufacturer with more than 30 years of experience. We have our factories, lovely employees, and professional production, processing, and R&D teams. The quality can be guaranteed. We have advanced testing equipment and excellent testing technology. Products will be strictly inspected before shipment to ensure that the goods are qualified.
Q: What is your production capacity and delivery date?
A: 3000 metric tons per month. We have stock on hand to meet customer requirements. Usually, we can deliver the goods within 7-15 days after your payment.
Q: Is the price negotiable?
A: Yes, if you have any questions, please feel free to contact us. We will do our best to support customers who want to expand the market.
Q: Can you provide free samples?
A: Yes, we can provide free samples to customers for them to check the quality or do the chemical analyses, but please tell us the detailed requirements for us to prepare the right samples.
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