Atomfair Beta Silicon Carbide Powder (3C-SiC), >98% Purity, D50 4.63 μm – Thermal Conductivity and Microwave Absorption
Product Description
Atomfair beta Silicon Carbide Powder (3C-SiC) is supplied with >98% purity, D50 4.63 μm particle size, and a cubic beta-SiC (3C-SiC) crystal structure. It is intended for thermal-conductive fillers, microwave-absorbing materials, and dielectric or insulation materials research.
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Technical Specifications
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Customization & Ordering
Custom particle-size and purity requirements may be evaluated for selected
grades upon request. Alternative package sizes may also be available.
Minimum order quantities, pricing, and lead times vary by specification and
will be confirmed during technical review and quotation.
Key Features and Advantages
- Defined >98% purity grade with D50 4.63 μm particle size.
- Complete-crystal, low-defect cubic beta-SiC powder format with high density.
- Low oil-absorption behavior with tunable dielectric performance for functional filler evaluation.
APPLICATION SCOPE: thermal-conductive fillers, microwave-absorbing materials, and dielectric or insulation materials research
DOCUMENTATION: COA and SDS can be provided upon request for batch-specific confirmation. Additional documentation requirements may be discussed before order confirmation.
LABORATORY PROCUREMENT SUPPORT
For grade selection, particle-size confirmation, documentation support or custom specification review, contact our technical sales team.
Store in a dry, sealed container to prevent moisture absorption and agglomeration. Avoid exposure to airborne dust generation; use local exhaust ventilation or a glovebox during transfer.
- Moisture Sensitivity: The powder may absorb ambient moisture, leading to particle agglomeration and altered flow properties.
- Dust Control: Fine particulate may become airborne during handling, requiring engineering controls to minimize inhalation risk.
Transfer the powder under inert atmosphere or in a fume hood to maintain purity and prevent contamination. Disperse the powder into a compatible polymer or solvent matrix using high-shear mixing for uniform filler distribution.
Required Equipment: Fume hood or glovebox, High-shear mixer or ball mill
- Prepare workspace
Set up a fume hood or glovebox with all tools and containers before opening the powder container. - Weigh powder
Transfer the required amount of beta SiC powder into a clean, dry weighing boat using a stainless steel spatula. - Disperse in matrix
Add the powder gradually to the polymer or solvent under high-shear mixing at 2000–5000 rpm for 10–15 minutes. - Seal container
Immediately reseal the bulk powder container after use to prevent moisture ingress.
How does the particle size distribution and 3C-SiC phase specification affect this powder's suitability for thermal-conductive or microwave-absorbing fillers?
This grade is specified as cubic beta-SiC (3C-SiC) with >98% purity and a D50 of 4.63 μm, with D10 2.93 μm, D90 7.06 μm, and D97 ≤8.2 μm. It is described as a complete-crystal, low-defect, high-density powder with low oil-absorption behavior and tunable dielectric performance, which supports its intended use in thermal-conductive fillers, microwave-absorbing materials, and dielectric/insulation research.
Which impurity limits should be verified before using this beta SiC powder in dielectric or insulation research?
The stated impurity profile is Fe₂O₃ <0.2%, SiO₂ <0.2%, F.Si <0.2%, and F.C <0.05%, with overall purity >98%. For batch-specific confirmation, a COA can be requested, and additional documentation requirements can be discussed before order confirmation.
What safety and batch documentation should be requested when procuring Atomfair beta silicon carbide powder?
Request the COA and SDS, both of which can be provided upon request for batch-specific confirmation. The product is offered in 500 g, 1 kg, and 5 kg packages, and custom particle-size or purity grades may be evaluated for selected grades upon request after technical review and quotation.
Atomfair beta-SiC powder (3C-SiC, >98% purity, D50 4.63 μm) is evaluated for thermal-conductive filler, microwave-absorbing, and dielectric applications, with a defined cubic crystal structure and low oil-absorption behavior that supports tunable dielectric performance in composite formulations.
Positive
- Defined cubic beta-SiC crystal structure: The complete-crystal, low-defect 3C-SiC phase provides high density and consistent dielectric properties, making it suitable for thermal-conductive and microwave-absorbing filler research.
- Low oil-absorption with tunable dielectric behavior: The powder exhibits low oil-absorption and tunable dielectric performance, enabling controlled formulation of functional fillers for insulation or microwave absorption without excessive binder demand.
Trade-offs
- Purity limited to >98% with trace impurities: The >98% purity grade includes Fe₂O₃ and SiO₂ each <0.2%, which may affect dielectric loss or thermal conductivity in high-precision applications requiring sub-ppm impurity control.
- Fixed median particle size limits dispersion flexibility: The D50 of 4.63 μm and narrow distribution (D10 2.93 μm, D90 7.06 μm) constrain particle packing and rheology in composite formulations, requiring custom grades for alternative size requirements.
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).
