Flame-Fusion Sapphire Crystal (Morgan Pink) Jewelry gemstones Watch components
Product Overview
Flame-fusion sapphire crystal, also known as Verneuil-grown sapphire, is a high-purity synthetic single crystal produced through a continuous melting and crystallization process. The Morgan pink color is achieved by carefully introducing trace elements during growth, resulting in a soft, elegant pink tone with excellent optical clarity.
This material combines aesthetic appeal with outstanding physical and chemical properties, making it ideal for both industrial and decorative applications.
Production Principle
The flame fusion (Verneuil) method involves melting high-purity aluminum oxide (Al₂O₃) powder in an oxyhydrogen flame at temperatures exceeding 2000°C. The molten droplets fall onto a seed crystal, where they solidify and grow into a cylindrical sapphire boule.
By adding controlled dopants (such as chromium or other trace elements), the crystal develops a Morgan pink coloration while maintaining its single-crystal structure and optical uniformity.
Key Features
- High Purity: ≥99.99% Al₂O₃
- Excellent Optical Transmission: Wide transmission range from UV to IR
- High Hardness: Mohs hardness 9 (second only to diamond)
- Thermal Stability: Resistant to high temperatures and thermal shock
- Chemical Resistance: Inert to most acids and alkalis
- Uniform Coloration: Soft Morgan pink with good consistency
Applications
- Jewelry gemstones
- Decorative stones
- Watch components
- Fashion accessories
Available Forms
- Sapphire rods
- Custom-shaped parts
- Rough crystal blocks
Dimensions and surface finishes can be customized according to specific requirements.
Specification
| Item | Specification |
|---|---|
| Material | Synthetic Sapphire (Al₂O₃) |
| Growth Method | Flame Fusion (Verneuil Method) |
| Color | Morgan Pink |
| Purity | ≥ 99.99% |
| Crystal Structure | Single Crystal (Hexagonal) |
| Density | 3.98 g/cm³ |
| Hardness | Mohs 9 |
| Melting Point | ~2050°C |
| Thermal Conductivity | ~25 W/m·K |
| Optical Transmission | 190 nm – 5.5 μm |
| Refractive Index | 1.76 (at 589 nm) |
| Surface Quality | Polished / Ground / As-grown |
| Shape | Rod / Plate / Tube / Custom |
| Diameter Range | 1 mm – 50 mm (customizable) |
| Length / Thickness | Customizable |
| Tolerance | ±0.01 mm (typical, customizable) |
| Surface Roughness | Ra ≤ 0.02 μm (optical polish available) |
| Orientation | Random / C-axis optional |
| Operating Temperature | Up to 1800°C |
| Chemical Resistance | Resistant to most acids and alkalis |
| Application | Optics / Laser / Semiconductor / Decoration |
FAQ
Q1: What is Morgan pink sapphire?
Morgan pink sapphire refers to a light pink-colored synthetic sapphire, achieved through controlled doping during crystal growth, offering both beauty and durability.
Q2: Is flame-fusion sapphire suitable for optical applications?
Yes, it provides excellent optical transmission and is widely used in optical and photonic systems.
Q3: Can the color be customized?
Yes, different shades of pink can be adjusted by modifying dopant concentration and growth parameters.
Get in Touch
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