Alpha-Phase Silicon Nitride Powder 200 nm 99.9% ATOMFAIR®

This submicron powder requires controlled handling to prevent airborne dispersion and moisture uptake. Storage in a sealed, dry container at ambient temperature is recommended to maintain particle size distribution and surface area.

• Moisture Sensitivity: Exposure to ambient humidity may cause agglomeration or surface hydrolysis, altering the powder's specific surface area and reactivity.
• Dust Control: Fine submicron particles can become airborne during transfer, requiring use of local exhaust ventilation or a glovebox to minimize inhalation risk.

This procedure outlines safe transfer and storage of the submicron powder to preserve its physical properties. Use appropriate personal protective equipment and a controlled environment to avoid contamination and dust exposure.

Required Equipment: Glovebox or fume hood, Sealed container with desiccant, Anti-static spatula

1. Prepare workspace
   Set up the glovebox or fume hood with inert gas purge to minimize moisture and static charge.
2. Don protective equipment
   Wear lab coat, safety glasses, and nitrile gloves to prevent skin contact and contamination.
3. Open container carefully
   Slowly open the sealed container inside the controlled environment to avoid generating airborne dust.
4. Transfer powder
   Use an anti-static spatula to transfer the required amount of powder into a clean, dry secondary container.
5. Reseal original container
   Immediately reseal the original container with the desiccant pack to prevent moisture ingress.
6. Store properly
   Store the sealed container in a cool, dry location away from direct sunlight and heat sources.

Atomfair alpha-phase silicon nitride submicron powder (200 nm, 99.9% purity) offers a high-purity, fine-particle feedstock for advanced ceramics and composite applications, with a specific surface area of 5–10 m²/g that influences sintering behavior and dispersion requirements.

Positive

• High purity and fine particle size: 99.9% purity and 200 nm particle size provide a consistent, high-surface-area feedstock suitable for demanding ceramic matrix composites and structural components where impurity-driven degradation must be minimized.
• Alpha-phase crystal structure: The alpha-phase silicon nitride offers a well-characterized starting phase for sintering into dense beta-phase ceramics, enabling controlled phase transformation kinetics during processing.

Trade-offs

• Submicron powder handling requirements: The 200 nm particle size and 5–10 m²/g specific surface area increase agglomeration tendency and require careful dispersion protocols or milling steps to achieve homogeneous green bodies, adding process complexity.
• Limited application-specific guidance provided: The product description directs users to contact Atomfair for application-specific guidance, indicating that optimal sintering aids, temperature profiles, and atmosphere control must be determined empirically or through direct technical consultation.

Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.

To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.

Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).