Highly Polished Silicon Carbide (SiC) Sheets

SiC Polished Sheets – High-Precision Polishing Plates for Advanced Applications

M-Kube Enterprise LLC supplies high-quality SiC polishing plates and SiC highly polished sheets across the United States, engineered for advanced optical, electronic, aerospace, and industrial applications. Renowned for their extreme hardness, wear resistance, chemical stability, and high-temperature performance, our Polished Non-Pressure Silicon Carbide Ceramic Sheets deliver durability and precision for demanding environments.

As a trusted SiC polished sheet supplier in the USA, M-Kube provides mirror-polished SiC wafers, plates, and highly polished sheets—available in both standard and fully customized dimensions to meet diverse industrial and research requirements.

Our SiC mirror-polished sheets are produced using advanced ceramic manufacturing and polishing technologies that ensure superior surface finish, flatness, and dimensional stability:

• Acheson Process – The most common production method, where silica reacts with carbon at high temperatures to form SiC.
• Reaction Bonding (RBSiC / SiSiC) – Combines silicon and carbon powders before sintering, resulting in a dense, high-strength SiC suitable for complex geometries.
• Pressureless Sintering (SSiC) – Produces high-purity SiC with exceptional strength, corrosion resistance, and thermal stability.
• Polishing & Finishing – Using advanced techniques such as laser cutting, ultrasonic wave grinding, and precision machining, we achieve mirror-polished SiC wafers with ultra-flat tolerances and optical-grade smoothness.

SiC Polished Sheets: Technical Specification

Key Features of SiC Polished Sheets

• Mirror-like surface finish with low roughness
• Exceptional thermal stability up to 1650 °C
• High mechanical strength and fracture resistance
• Excellent wear and chemical resistance
• Available in RBSiC (SiSiC), NBSiC, SSiC, and RSIC grades
• Custom dimensions and thickness options available

M-Kube Enterprise LLC supplies silicon carbide in multiple grades, including RBSiC (Reaction-Bonded SiC / SiSiC), NBSiC (Nitrogen-Bonded SiC), SSiC (Pressureless Sintered SiC), and RSiC (Recrystallized SiC)—each tailored for specific optical, structural, filtration, and high-temperature uses.

Achieving precise tolerances and optical-level finishes on SiC highly polished sheets requires advanced machining capabilities. Below are typical production tolerances:

Dimensional Tolerances

• General Precision (as-sintered): ±0.2 – ±0.5 mm
• Fine Precision (ground & polished): ±0.01 – ±0.05 mm
• Ultra-Precision (optical/semiconductor): ±0.002 – ±0.005 mm

Surface Finish (Ra – Roughness Average)

• As-Sintered: Ra 1–3 μm
• Fine Ground: Ra 0.1–0.5 μm
• Polished (Mirror Finish): Ra 0.01–0.05 μm
• Ultra-Polished (Optical/Semiconductor): Ra < 0.005 μm (5 nm)

Flatness

• Standard: 10–50 μm per 100 mm
• High Precision: 5 μm per 100 mm
• Optical/Semiconductor: 1–2 μm per 100 mm

Thickness Tolerance

• General: ±0.1 mm
• Precision Machined: ±0.01–0.05 mm
• Ultra-Precision: ±0.005 mm

Parallelism

• Standard: 50–100 μm
• Precision: 10–20 μm
• Ultra-Precision: <5 μm

Edge & Corner Tolerances

• Chamfered Edges: ±0.1 mm (to prevent chipping)
• Sharp Edges: ±0.05 mm

Applications of SiC Polished Sheets

M-Kube’s SiC mirror polished sheets are trusted across U.S. industries, including:

• Semiconductor substrate preparation
• Optical and photonics research
• High-power electronic devices
• Precision polishing and lapping processes
• Material testing and thermal analysis
• Thin-film and coating applications

Why Choose M-Kube Enterprise LLC as Your SiC Polished Sheet Supplier?

• High-quality SiC highly polished plates for sale
• Competitive SiC polished sheet price in the U.S.
• Fast delivery and reliable sourcing nationwide
• Technical expertise to support advanced applications
• Custom and standard sizes to meet diverse industry needs

Quality and Compliance

All our ceramics and refractory products are manufactured in ISO-certified facilities with the capability to meet and comply with ASTM, ISO, and other global standards. This ensures consistent quality and performance for both standard and custom-engineered solutions.

Request a Quote Today

Looking for SiC polished sheets, wafers, or mirror-polished plates for your application? Get in touch with M-Kube Enterprise LLC for precision-engineered SiC solutions.

📞 Call us at +1-732-808-1999
📧 Email us at info@mkubeenterprise.com
🌐 Visit www.mkubeenterprise.com to request a fast, competitive quote.