Synthetic Sapphire Boule , Kyropoulos (KY) Method Grown 80kg 260kg 300kg 400kg

Sapphire Crystal Boule, a synthetic single-crystal alumina (α-Al₂O₃), is grown using advanced methods such as the Kyropoulos, Czochralski (CZ), or Heat Exchange Method (HEM). With exceptional hardness, broad light transmission, and superior chemical stability, it is an essential material in optics, semiconductors, consumer electronics, and industrial sectors.

• Wide transmittance range (0.15–5.5 μm) for deep UV to mid-IR applications.
• Low birefringence (0.008) and refractive index of 1.76@589 nm, making it ideal for lenses and windows.
• Compatible with anti-reflection (AR), high-reflection (HR), and bandpass coatings.

• Scratch-resistant (Mohs 9) with high compressive strength (>2 GPa).
• Bend strength exceeding 400 MPa, suitable for wafers, bearings, and industrial components.

• Melting point of 2050°C; operational temperature up to 1900°C in inert gas environments.
• Thermal conductivity of 35 W/(m·K); low thermal expansion coefficient (5.8*10⁻⁶/K).

• Resistant to acids and alkalis (except hydrofluoric acid and hot concentrated sulfuric acid).
• Ideal for aerospace, nuclear, and harsh environmental applications.

• Semiconductors: LED and Micro-LED substrates, plasma-resistant device windows.
• Optics/Lasers: High-power laser windows, IR optics for defense systems.
• Consumer Electronics: Scratch-resistant covers for smartwatches and smartphone lenses.
• Industrial: Precision bearings, deep-sea pressure windows, and space-grade components.

• Custom Growth: Producing 2–12-inch boules via Kyropoulos, CZ, or HEM methods.
• Precision Machining: Manufacturing wafers, optical windows, and custom-shaped parts.
• Coating Solutions: Offering AR, HR, and filter coatings for enhanced optical performance.
• Testing & Support: Providing defect analysis, environmental stability validation, and technical consultation.

Q1: Why is sapphire expensive?

Sapphire's high cost is due to the need for high-purity growth processes and specialized cutting/polishing techniques required to handle its extreme hardness.

Q2: What are the primary uses of sapphire boules?

Sapphire boules are mainly used as LED substrates, optical components, and durable covers for consumer electronics.