Atomfair Beta Silicon Carbide Powder (3C-SiC), >98% Purity, D50 0.47 μm – Thermal Conductivity and Microwave Absorption
Product Description
Atomfair beta Silicon Carbide Powder (3C-SiC) is supplied with >98% purity, D50 0.47 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 0.47 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.
This powder requires controlled atmosphere storage to prevent moisture adsorption and oxidation, which can alter surface chemistry and dispersion behavior. Particle agglomeration may occur under ambient humidity, affecting downstream processing uniformity.
- Moisture Sensitivity: Store in a sealed container under dry inert gas to maintain specified particle size distribution and prevent caking.
- Dispersion Requirement: Mechanical or ultrasonic dispersion is recommended prior to incorporation into composite matrices to break soft agglomerates.
- Contamination Control: Use clean, non-reactive tools and containers to avoid introducing metallic or organic impurities that degrade dielectric performance.
This procedure outlines the safe handling and dispersion of beta SiC powder for use as a thermal-conductive or microwave-absorbing filler. Proper dispersion ensures uniform particle distribution and optimal functional performance.
Required Equipment: Analytical balance, Ultrasonic bath or probe sonicator, Vacuum oven or glovebox
- Weigh powder
Weigh the required amount of beta SiC powder using an analytical balance in a dry, inert atmosphere to prevent moisture uptake. - Disperse in solvent
Transfer the powder to a suitable solvent or resin matrix and apply ultrasonic agitation for 10–15 minutes to break agglomerates. - Degas mixture
Place the dispersion under vacuum for 5 minutes to remove entrapped air bubbles before casting or coating. - Verify uniformity
Inspect the mixture visually for clumps or sedimentation and repeat dispersion if necessary to achieve a homogeneous suspension.
What particle size distribution should be expected for Atomfair beta SiC powder with a D50 of 0.47 μm?
The powder is specified with D10 0.08 μm, D50 0.47 μm, D90 0.95 μm, and D97 ≤1.21 μm, with a tap density of 0.80 g/cm³. This fine, defined particle-size distribution is supplied for evaluation as a thermal-conductive filler and in microwave-absorbing or dielectric/insulation materials research. Batch-specific confirmation is available from the COA on request.
Can this 3C-SiC powder be used for both thermal-conductive filler and microwave-absorbing material research?
Yes; Atomfair states the application scope as thermal-conductive fillers, microwave-absorbing materials, and dielectric or insulation materials research. The cubic beta-SiC (3C-SiC) crystal structure, >98% purity, and low oil-absorption behavior with tunable dielectric performance are cited as the relevant functional-filler characteristics.
What impurity constraints are specified for Atomfair beta silicon carbide powder?
The product is specified as >98% purity with the impurity profile Fe₂O₃ <0.2%, SiO₂ <0.5%, F.Si <0.2%, and F.C <0.1%. These defined impurity limits support its use as a controlled-grade powder for thermal-conductive, microwave-absorbing, and dielectric material evaluation.
Atomfair 3C-SiC powder is a well-characterized >98% purity beta-phase silicon carbide with a D50 of 0.47 μm and a tight submicron particle-size envelope, suited for thermal-conductive, microwave-absorbing, and dielectric/insulation filler research. Its standard grade is fixed, so custom particle-size or purity goals require separate technical evaluation and batch-specific documentation confirmation.
Positive
- Defined submicron particle-size envelope: The powder is supplied at D50 0.47 μm with D10 0.08 μm, D90 0.95 μm, and D97 ≤1.21 μm, providing a well-characterized particle-size distribution for formulation and filler studies.
- Low oil absorption with tunable dielectric response: The complete-crystal, low-defect 3C-SiC format is described as low-oil-absorption with tunable dielectric performance, supporting evaluation in thermal-conductive, microwave-absorbing, and dielectric/insulation materials.
Trade-offs
- Fixed standard grade limits custom specifications: The supplied grade is fixed at >98% purity and D50 0.47 μm; custom particle-size and purity requirements are only evaluated for selected grades and are not guaranteed as standard options.
- Residual impurity envelope must be reviewed: This >98% purity grade still contains specified Fe₂O₃, SiO₂, free-silicon, and free-carbon residuals, so batch-specific COA and SDS confirmation should be requested before order confirmation for sensitive applications.
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).
