Custom Optical-Grade Sapphire Tube OD 2mm×ID1.6mm×L 6mm High Environmental Resistance
This Sapphire Tube with dimensions of outer diameter (OD) 2mm × inner diameter (ID) 1.6mm × length (L) 6mm is a miniaturized, high-precision, and high-performance ceramic tubular component manufactured from ultra-high-purity single-crystal aluminum oxide (α-Al₂O₃) through precision machining. It is specifically designed for cutting-edge technological fields with extreme requirements for size, accuracy, reliability, and tolerance to harsh environments.
Due to its extremely small size (categorized as an ultra-fine precision tube), its production and quality control are highly challenging, typically requiring ultra-precision machining technologies (e.g., laser processing, ultrasonic grinding, diamond wire cutting) to achieve.
Sapphire Tube Feature
Leveraging its miniature size and the intrinsic properties of sapphire, it offers the following core advantages:
- Extreme Dimensional Accuracy and Stability: Sapphire’s high elastic modulus (~400 GPa) and low coefficient of thermal expansion ensure that this micro-tube highly resists bending or deformation under mechanical stress or temperature fluctuations, maintaining dimensional stability.
- Exceptional Durability: With a Mohs hardness of 9 (second only to diamond), it is extremely wear-resistant and scratch-resistant, ensuring a long service life.
- Outstanding Chemical Inertness and Corrosion Resistance: It can withstand erosion from most strong acids, alkalis, and plasmas, making it suitable for demanding chemical environments.
- Excellent Thermal Performance: It withstands high temperatures (melting point up to 2040°C) and exhibits good thermal conductivity, enabling operation in high-temperature scenarios.
- Good Optical Properties: It offers high transmittance in specific bands (e.g., UV, visible, IR), and its surface can be polished to achieve extremely low roughness, suitable for certain optical applications.
Sapphire Tube Application
1. Extreme Environment Micro-Sensors: Protects fiber optic probes and sensitive elements in high-temperature/corrosive settings (e.g., inside engines, chemical reactors).
2. Microfluidic Chips (Lab-on-a-Chip): Acts as microchannels/reaction chambers for biochemical analysis, leveraging its chemical inertness to prevent contamination and its hardness for robust encapsulation.
3. Precision Medical Devices: Used in micro-endoscopes (light-guiding channels) and implantable components requiring biocompatibility and wear resistance.
4. High-Precision Optical Systems: Serves as light guide tubes for lasers or protective sleeves for fiber optic connections, ensuring signal integrity.
5. Semiconductor & MEMS: Provides insulating supports, protective sheaths for micro-components, or micro-reaction chambers in specialized processes.
Sapphire Tube Key Parameter
| Parameter Category | Parameter Name | Typical Value/Notes |
| Material Characteristics | Primary Material | Single-crystal aluminum oxide (α-Al₂O₃) |
| Crystal Structure | Hexagonal system |
| Density | ~3.98 g/cm³ |
| Mohs Hardness | 9 |
| Melting Point | ~2040 °C |
| Dimensional Specifications | Outer Diameter (OD) | 2 mm |
| Inner Diameter (ID) | 1.6 mm |
| Length (L) | 6 mm |
| Wall Thickness | 0.2 mm |
| Functional Characteristics | Surface Finish | Can be polished to optical grade |
| Pressure Resistance | Relatively high (specific value highly depends on size and wall thickness) |
| Operating Temperature | -200°C ~ +1500°C (short-term) |
ZMSH's Sapphire Tube Products
2. Polished Sapphire Tube Single Crystal Al₂O₃ Optical Component
1. Q: What are the key advantages of sapphire tubes over other materials like quartz?
A: Sapphire tubes offer superior hardness (Mohs 9), exceptional thermal stability (withstanding temperatures up to 2040°C), and excellent chemical inertness, making them far more durable and reliable in high-temperature, high-pressure, or corrosive environments than quartz or alumina tubes.
2. Q: In what applications are sapphire tubes most critical?
A: They are essential in high-pressure NMR spectroscopy, semiconductor processing equipment, and as protective sheaths for sensors in harsh conditions, where their stability ensures precision and longevity.
Tags: #Sapphire Tube, #Customized, #Double-Side Polished, #High-Purity, #Optical Component, #Corrosion-Resistant, #High-Temperature Rated, #MEMS Micromirror, #Optical-Grade, #OD 2mm×ID1.6mm×L 6mm, #High Environmental Resistance
