Synthetic mica Sheet

Synthetic mica sheet delivers excellent thermal and electrical insulation for high-voltage and fire-resistant applications.

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Mica Sheet

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Yuefeng Mica

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Description

Commodity name: Synthetic mica Sheet

Max Temp: 1100°C Optical Clarity High Purity

LAB-GROWN CRYSTAL

Synthetic Mica Sheet (Fluorophlogopite)

Premium laboratory-grown mica sheets engineered for extreme thermal stability up to 1100°C. Featuring superior optical transparency, zero outgassing, and exceptional dielectric strength for precision applications.

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Extreme Heat: Continuous operation at 1100°C (vs 500°C for natural).

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High Purity: No hydroxyl (OH) ions, virtually free of impurities.

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Optical Grade: Excellent transmission from UV to Infrared.

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Technical Specifications Comparison

Property	Synthetic Mica (Fluorophlogopite)	Natural Mica (Muscovite)
Chemical Formula	KMg3(AlSi3O10)F2	KAl2(AlSi3O10)(OH)2
Max Operating Temp	1100°C	500°C - 600°C
Melting Point	1350°C	1250°C
Volume Resistivity (Ω·cm)	10¹⁵ - 10¹⁶	10¹³ - 10¹⁵
Dielectric Loss (tg δ)	< 0.0003 (Low Loss)	0.001 - 0.003
Optical Clarity	Excellent (UV to IR)	Good (Visible Only)
Outgassing (Vacuum)	Extremely Low	Releases Water (OH)

Advanced Applications

🔭 High-Pressure Windows

Observation windows for high-pressure boilers and furnaces where natural mica would degrade or cloud.

📡 Radar & Microwave

Waveguides and antenna covers requiring low dielectric loss and high frequency stability.

🔬 Vacuum Environments

Substrates for thin-film deposition and aerospace components due to zero outgassing properties.

Frequently Asked Questions

What is Synthetic Mica (Fluorophlogopite)?

Synthetic mica is a lab-grown silicate mineral produced at high temperatures (~1500°C). By replacing the hydroxyl (OH) group found in natural mica with fluorine (F), it achieves superior thermal stability and purity.

What is the main advantage over natural mica?

The biggest advantage is heat resistance. Synthetic mica can work continuously at 1100°C, whereas natural mica starts to degrade at 500-600°C (releasing water). It also has better optical clarity and UV transmission.

Is synthetic mica sheet transparent?

Yes, it has exceptional optical clarity and is transparent from Ultraviolet (UV) to Infrared (IR) spectrums, making it suitable for optical instrument windows.

Does it outgas in a vacuum?

No. Because synthetic mica does not contain water molecules (hydroxyl groups) in its crystal lattice, it has virtually zero outgassing even at high temperatures and high vacuums.

What sizes and thicknesses are available?

We can produce synthetic mica sheets in various thicknesses from 0.05mm to several millimeters. Custom shapes and dimensions (discs, rectangles) can be machined to your specifications.

Is it chemically resistant?

Yes, it has excellent resistance to strong acids and alkalis, and it does not hydrate or swell when exposed to high-pressure steam or water.

Can I use it for electrical insulation?

Absolutely. It has higher volume resistivity and lower dielectric loss than natural mica, making it ideal for high-frequency and high-voltage electrical applications.

Mica Sheets

Natural mica sheet