185×5×4.2mm Custom Glass Parts Quartz Substrate Strip Low Thermal Expansion
Product Overview
The High Purity Fused Silica Quartz Substrate Strip is a precision-ground quartz glass strip (185mm x 5mm x 4.2mm) engineered for machine vision, optical assembly, vacuum coating, and laboratory applications. Manufactured from premium fused silica (SiO2 > 99.99%) with tight dimensional tolerance control, this strip delivers superior thermal stability, chemical inertness, and optical clarity.
Key Features
- High Purity Fused Silica: SiO2 > 99.99% with ultra-low impurity content, ensuring contamination-free operation in sensitive applications
- 1100°C Temperature Resistance: Maintains structural integrity at extreme temperatures without softening or deformation
- HF & Strong Corrosive Resistance: Outstanding chemical durability against hydrofluoric acid, strong acids, and alkalis
- Precision Ground Surface: Fine polished with tight dimensional tolerance for precise assembly and positioning
- Low Thermal Expansion: CTE of 5.5 x 10^-7 /°C prevents cracking, warping, and edge chipping under thermal cycling
- Excellent Light Transmittance: High optical clarity suitable for vision system and optical path applications
Applications
| Industry | Application |
|---|---|
| Machine Vision | Vision light source base plate, LED light bar mounting liner |
| Optical Assembly | Optical component positioning pad, optical path spacer block |
| Vacuum Coating | Coating fixture carrier, small lens support pallet |
| Laboratory | High-temperature sample carrier plate, corrosion test platform base |
Competitive Advantages
vs. Borosilicate Glass: Superior HF acid resistance; no softening or deformation at high temperatures exceeding 500°C; significantly lower thermal expansion prevents cracking
vs. Plastic Components: Excellent organic solvent resistance; long-term dimensional stability without yellowing or warping; suitable for high-temperature and corrosive environments
Specifications
| Parameter | Value |
|---|---|
| Material | High Purity Fused Silica (SiO2 > 99.99%) |
| Dimensions | 185mm (L) x 5mm (W) x 4.2mm (T) |
| Max Operating Temperature | 1100°C |
| CTE | 5.5 x 10^-7 /°C |
| Surface Finish | Precision Ground |
| Chemical Resistance | HF, Strong Acid & Alkali |
| Dimensional Tolerance | Tight Precision Control |
| Light Transmittance | Excellent Optical Clarity |
Get in Touch
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