Silicon nitride Bulk Supply for Industrial Use
China Factory Direct
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| CAS number | 12033-89-5 |
| Product name | Silicon nitride |
| Stock | Stock readily available; annual supply capacity exceeding 1,000 tons. |
| Grade | Pharmaceutical GradeMaterial GradeSpecialty GradeElectronic GradeIndustrial Grade |
| Packaging | 25KG/bag500KG/bag1000KG/bag |
| Sample | Test Samples Available (Click to Request Samples) |
| COA | View COA |
| Price | Get Quote |
| Supply Type | Bulk / Contract manufacturing / OEM |
| Shipping | FCL / LCL available |
| Payment Terms | Support FOB \ CIF \ EXW quotations, and accept Letter of Credit (L/C). |
| Manufacturer | Greenrock Chemical(China Factory) |
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Documents We Provide for Silicon nitride
Post-sale: Full documentation is provided.
To request documents, please contact us via email at sales@GRchemical.com.
Bulk Silicon nitride Supplier from China
17+ years in chemical exports.Fully compliant, reliable supply.Your B2B partner in bulk chemical procurement.
Industrial Applications of Silicon nitride
| Industry | Application | Process |
|---|---|---|
| Electronics Industry | Insulating and passivation layers in semiconductor manufacturing | Chemical vapor deposition (CVD) to form silicon nitride thin films on silicon wafers |
| Photovoltaic Industry | Antireflective coatings for solar cells | Plasma-enhanced chemical vapor deposition (PECVD) to produce antireflective films |
| Mechanical Industry | High-temperature structural materials and wear-resistant components | Hot-press sintering or reaction sintering to fabricate silicon nitride ceramic parts |
| Metallurgical Industry | Additive for refractory materials | Incorporated into refractory bricks or crucibles to enhance thermal shock resistance and corrosion resistance |
| Chemical Industry | Catalyst support | Metal catalysts loaded onto the support via impregnation for high-temperature reactions |
| Aerospace Industry | High-temperature engine components (e.g., turbine blades) | Precision forming followed by high-temperature sintering to produce high-performance ceramic components |
| Medical Devices | Material for orthopedic implants | Injection molding or 3D printing followed by sintering to produce biologically inert ceramic implants |
Manufacturing Quality Control of Silicon nitride
| Test Item | Common Test Methods | Method Overview |
|---|---|---|
| Chemical Composition Analysis | X-Ray Fluorescence Spectroscopy (XRF) | Uses X-rays to excite the sample and generate characteristic fluorescence, enabling rapid determination of major elements (Si, N) and impurity elements in silicon nitride. |
| Wet Chemical Analysis | Sample is decomposed by acid dissolution or alkali fusion, followed by titration or spectrophotometry to determine Si and N content; high accuracy but time-consuming. | |
| Nitrogen Analysis (Inert Gas Fusion - Thermal Conductivity Method) | Sample is reacted with carbon at high temperature to release nitrogen gas, which is then measured by a thermal conductivity detector; specifically used for quantitative nitrogen analysis. | |
| Phase Composition Analysis | X-Ray Diffraction (XRD) | Identifies crystalline phases (e.g., α-Si₃N₄, β-Si₃N₄) and impurity phases (e.g., SiO₂, SiC) through diffraction patterns to assess phase purity. |
| Microstructural Analysis | Scanning Electron Microscopy (SEM) | Observes particle morphology, grain size, distribution, and density to evaluate sintering quality and microstructural uniformity. |
| Transmission Electron Microscopy (TEM) | Provides high-resolution imaging to analyze nanoscale structural features such as grain boundaries, dislocations, and secondary phases. | |
| Particle Size Distribution | Laser Particle Size Analysis | Measures particle size distribution based on laser scattering principles; suitable for both dry and wet dispersion methods. |
| Specific Surface Area Method (BET Method) | Determines specific surface area via nitrogen adsorption, indirectly reflecting particle fineness and agglomeration state. | |
| Density | Archimedes' Principle (Immersion Method) | Measures bulk density of sintered bodies to evaluate densification level; commonly used for quality control of ceramic components. |
| Mechanical Properties | Vickers Hardness Test | Uses a diamond indenter to measure surface hardness, indicating the material's resistance to plastic deformation. |
| Four-Point Bend Strength Test | Measures flexural strength at room or elevated temperatures to evaluate mechanical reliability of structural ceramics. | |
| Purity and Impurities | Inductively Coupled Plasma Mass Spectrometry (ICP-MS) | High-sensitivity detection of metallic impurities (e.g., Fe, Al, Ca); suitable for trace element analysis in high-purity silicon nitride. |
| Oxygen Content Analysis | Impulse Heating Inert Gas Fusion - Infrared Absorption Method | Oxygen is released in a high-temperature pulse furnace and converted to CO/CO₂, which is then detected by infrared absorption to assess oxidation level. |
Technical Specifications of Silicon nitride
| Test Item | Specification |
|---|---|
| Appearance | White to off-white fine powder |
| Purity | >=99.0% (alpha-phase) |
| Total Impurities | <=1.0% |
| Water Content (KF) | <=0.5% |
| Residue on Ignition | <=0.3% |
| Heavy Metals | <=20 ppm |
| Particle Size (D50) | 15–25 nm |
| Solubility | Insoluble in water and common organic solvents |
Specifications vary by industry. Reach out to our technical experts for a COA tailored specifically to your application. Email:selse@GRchemical.com
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Download COA of Silicon nitride
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| Lot/Batch Number | *Required fields | |
Packaging of Silicon nitride
Industrial Silicon nitride Procurement FAQ
1. How do you ensure product quality consistency?
We rely on a mature China-based manufacturing system and implement strict batch control and quality inspection for every shipment. Our production process complies with ISO 9001 standards, and a COA is provided for each batch to ensure consistent and reliable quality.
2. Do you offer competitive pricing for bulk orders?
Yes, as a China-based manufacturer and bulk supplier, we provide tiered pricing based on order volume. We support FOB and CIF quotations, as well as L/C payment terms for large transactions to meet international trade requirements.
3. Can you support large-volume or long-term supply?
We have stable production capacity and a well-established supply chain, enabling continuous bulk supply. We support ton-level and container-level orders, as well as long-term cooperation projects.
4. What is your typical lead time?
For in-stock products, shipment can be arranged within 1–3 days. For bulk packaging or customized orders, lead time depends on the specific quantity and production schedule.
5. What documents do you provide?
We can provide complete documentation upon request, including COA, SDS, TDS, and other compliance certificates, meeting industrial procurement and export requirements.
6. Can you customize product specifications or packaging?
Yes, we support customization of parameters such as purity, impurities, residual solvents, and heavy metals. We also offer various bulk packaging options, including 25kg bags, drums, and IBC tanks, suitable for industrial applications and transportation.
7. What shipping options do you support?
We support both FCL (Full Container Load) and LCL (Less than Container Load) shipments, and can flexibly arrange logistics solutions based on order size to meet bulk chemical export needs.
8. Do you provide technical or application support?
Yes, we provide basic application guidance and technical support based on industry experience to help customers optimize product usage.
9. How do you handle compliance and export regulations?
We are familiar with international trade and export regulations, ensuring all products comply with relevant requirements. We also provide complete documentation to support smooth customs clearance and global delivery.
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