Precision Machining
Products & Services
- Precision Machining Capabilities
- Glass Forming, Coating, and Strengthening
- Polishing
- Subsystem Assembly
- Materials We Machine
- Applications
- Facilities
Machining / Grinding Fused Quartz
CiDRA® Precision Services, LLC has years of experience manufacturing micron level tolerance products from Fused Quartz. We leverage our in-depth dicing, drilling, milling, grinding, and polishing capability to manufacture the highest quality Fused Quartz products. For those applications with exacting optical requirements, CiDRA® Precision Services, LLC has the ability to clean, polish, and apply coatings.
- Ultra-Precision Centerless Grinding
- Ultra-Precision Surface Grinding
- Ultra-Precision Slicing, Dicing, and Singulation
- High Speed CNC Milling & Drilling Center
- Flat, OD, and ID Polishing
- Glass Forming, Coating, and Strengthening
Whether you need prototypes or volumne production, CiDRA® Precision Services, LLC is here to help. Please contact us to discuss your applications.
About Fused Quartz
Fused quartz is similar in many respects to fused silica, except it is made by melting, purifying and fusing together naturally occurring quartz (sand) to form a vitreous material. Generally speaking, fused quartz and fused silica have similar properties except for the optical properties. The optical properties can be tailored in different spectral regions by either removing impurities or adding dopants. Black fused quartz, for example, is doped to reduce optical transmission to make it useful as a backgound absorber in spectroscopy applications.
Fused Quartz Applications
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Fused Quartz Properties
Units |
Fused Quartz |
|
| Softening Point | C | 1683 - 1730 |
| Annealing Point | C | 1180 - 1215 |
| Strain Point | C | 1075 - 1120 |
| Max Use Temperature | C | 950 - 1150 |
| Thermal Conductivity | W/(m K) | 1.3 - 1.4 |
| Specific Heat | J/(kg C) | 670 - 703 |
| Coefficient of Thermal Expansion | 1/C (x10^-6) | 0.55 |
| Moh Hardness | 5.3 -6.5 | |
| Knoop Hardness | kg/mm^2 | 600 - 615 |
| Density | g/cm^3 | 2.2 |
| Compressive Strength | MPa | 1100 |
| Tensile Strength | MPa | 48 - 50 |
| Bending Strength | MPa | 67 |
| Young's Modulus | GPa | 72 - 73 |
| Poisson's ratio | 0.16 - 0.17 | |
| Dielectric Strength | kv/cm | 370 - 500 |
| Dielectric Constant (@1MHz) | 3.7 -3.85 | |
| Dielectric Loss Tangent | 0.0001 | |
| Resistivity | ohm/cm | 10^18 |
| Usable Transmission Range | um | 0.25 - 2.8 |
| Refractive Index (@550nm) | 1.46 | |
| The information provided in this table is for room temperature only, and is a compilation of publicly available data. This information is provided for comparison purposes only, and is not intended to be warrantable. Further, CiDRA® Precision Services, LLC disclaims any and all liability from errors, inaccuracies, or omissions. | ||
Please contact us if you would like to discuss your Fused Quartz dicing, drilling, milling, grinding, polishing or any other machining applications.