Atomfair Beta Silicon Carbide Powder (3C-SiC), >99% Purity, D50 34.2 μm – Thermal Conductivity and Microwave Absorption
Product Description
Atomfair beta Silicon Carbide Powder (3C-SiC) is supplied with >99% purity, D50 34.2 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 >99% purity grade with D50 34.2 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.
How does the 3C-SiC crystal phase and D50 of 34.2 μm affect thermal conductivity and microwave absorption performance?
The cubic beta-SiC (3C-SiC) phase with a complete-crystal, low-defect structure supports high-density packing and efficient phonon transport, which is beneficial for thermal-conductive filler applications. The D50 of 34.2 μm (with D10 22 μm, D90 53.6 μm, and D97 ≤64.6 μm) provides a controlled particle-size distribution that influences dielectric and microwave-absorption behavior, as stated in the product description.
What are the key impurity limits and how do they affect the material's suitability for dielectric or insulation research?
The powder has a purity of >99% with specified impurity limits: Fe₂O₃ <0.08%, SiO₂ <0.1%, F.Si <0.1%, and F.C <0.05%. These low impurity levels are critical for maintaining consistent dielectric properties and minimizing unintended conductivity or contamination in insulation and microwave-absorbing material research.
What handling and storage considerations are required for this beta silicon carbide powder?
The product is supplied as a powder with a tap density of 1.80 g/cm³ and low oil-absorption behavior, which should be considered when formulating composites or handling in dry environments. Standard laboratory practices for fine powders—such as using appropriate PPE and avoiding dust generation—are recommended, and a COA and SDS are available upon request for batch-specific safety and handling confirmation.
Atomfair's beta silicon carbide powder provides a defined coarse-micron cubic 3C-SiC filler (>99% purity, D50 34.2 μm, tap density 1.80 g/cm³) with low oil absorption and tunable dielectric performance, making it a practical reference material for thermal-conductive filler, microwave-absorbing, and dielectric composite R&D; buyers should confirm trace-impurity tolerances and custom-grade availability during technical review.
Positive
- High-purity 3C-SiC with defined particle size distribution: The powder is specified at >99% purity with D10 22 μm, D50 34.2 μm, D90 53.6 μm, and D97 ≤64.6 μm, providing a well-characterized coarse filler fraction for dielectric and thermal-composite experiments. The complete-crystal, low-defect cubic beta-SiC structure and 1.80 g/cm³ tap density give formulators a consistent high-density ceramic filler for evaluation.
- Low oil absorption with tunable dielectric behavior: The stated low oil-absorption behavior and tunable dielectric performance support use as a functional filler in thermal-conductive, microwave-absorbing, and insulation-material research, where filler loading and dielectric response are central formulation parameters.
Trade-offs
- Trace impurity profile requires application verification: The specified impurity profile includes Fe₂O₃ <0.08%, SiO₂ <0.1%, F.Si <0.1%, and F.C <0.05%; applications sensitive to iron/oxide residues or free-carbon content should confirm batch COA values before adopting this grade.
- Custom grades require technical review before ordering: Custom particle-size and purity requirements are only evaluated for selected grades upon request, so non-standard specifications cannot be assumed available without a formal technical review and quotation confirmation.
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).
