Short, transparent fused quartz rods are precision rod-shaped materials manufactured from high-purity fused quartz. They feature high transparency, a low coefficient of thermal expansion, high-temperature resistance, chemical corrosion resistance, and dimensional stability. Suitable for a wide range of applications—including optics, semiconductors, laboratories, high-temperature equipment, and precision machining—these rods can be customized according to diameter, length, tolerances, and surface finish requirements, providing stable and reliable quartz product solutions to customers worldwide.

Its core features are as follows:

Accurate size: diameter range of 0.5mm-20mm, length can be customized (as short as 1mm), meeting the needs of precision instruments for miniaturization and lightweight.

High transparency: With a transmittance of over 90% in the ultraviolet (UV) to infrared (IR) wavelength range (180-3500nm), it is suitable for full spectrum optical applications.

High temperature resistance: With a softening point of up to 1700 ℃, it can work stably in an environment of 1100 ℃ for a long time and is suitable for high temperature environments.

Chemical stability: resistant to acid and alkali corrosion (except hydrofluoric acid), suitable for environments with strong chemical media.

Low thermal expansion coefficient (5.5 × 10 ⁻⁷/℃): Excellent thermal stability, reducing the risk of deformation or cracking caused by temperature changes.

Typical parameters:

Refractive index: 1.458 (589nm wavelength)

Density: 2.2g/cm ⊃3;

Surface roughness: Ra ≤ 0.05 μ m (ultra precision polishing optional)

Core application scenarios

Optics and Optoelectronics

Laser system: As a laser resonant cavity and beam transmission medium, it solves the problem of optical path deviation caused by thermal expansion of traditional materials.

Spectral analysis: used as a window or lens for UV visible near-infrared spectrophotometers and Raman spectrometers to enhance signal detection sensitivity.

Fiber optic coupling: As the core material of fiber optic connectors, it reduces insertion loss and improves transmission efficiency.

Semiconductor and Microelectronics Field

Wafer processing: As a high-temperature mask or photolithography alignment mark, it is resistant to plasma etching process.

Chip packaging: Used as a heat dissipation substrate for high-power LEDs and power devices, solving the problem of insufficient thermal conductivity of traditional ceramic materials.

Precision instruments and industrial manufacturing

Medical equipment: Endoscopes, microscope optical components, meet biocompatibility requirements (compliant with USP Class VI standards).

Aerospace: As a radiation resistant sensor window, it is suitable for extreme environments such as satellites and deep space probes.

Laboratory consumables: observation windows for high-temperature reactors, sample tanks for chemical analyzers, replacing fragile glass materials.

Special scenario solutions

Miniaturization demand: Replace traditional metal or plastic components to achieve lightweight equipment (such as drone optical payloads).

Corrosion resistant environment: Replace easily corroded metal probes in online detection equipment in the chemical and petroleum industries.

Customized service

Customization of size and shape

Diameter/Length: Supports customization of 0.5mm-20mm diameter and 1mm-500mm length, with a tolerance of ± 0.01mm.

Alien processing: We can provide non-standard shapes such as stepped shafts, conical and spherical end faces to meet special optical path design requirements.

Surface treatment options

Ultra precision polishing: Ra ≤ 0.01 μ m, suitable for interferometers and high-precision optical systems.

Coating service: providing anti reflective film (AR), reflective film, spectral film, etc., covering the 180nm-3500nm wavelength range.

Anti fouling coating: Nano scale hydrophobic/oleophobic coating, extending equipment maintenance cycle.

Performance enhancement plan

Doping modification: By doping elements such as titanium and germanium, the refractive index can be adjusted or the transmission range can be expanded.

High purity option: Provides ultra pure quartz rods with a metal impurity content of<1ppm to meet semiconductor grade applications.

Frequently Asked Questions

What are the key performance parameters of short, transparent fused quartz rods?

Typical performance characteristics of short, transparent fused quartz rods include: silicon dioxide purity of 99.99% or higher; a long-term operating temperature of approximately 1,100°C; and short-term resistance to temperatures up to 1,300°C; an extremely low coefficient of thermal expansion (5.5×10⁻⁷ cm/cm·°C), which ensures dimensional stability even under drastic temperature fluctuations; visible light transmittance exceeding 80%; and excellent electrical insulation properties combined with chemical inertness. These characteristics collectively form the foundation for their reliable performance in harsh environments.

In which industries are these products primarily used?

Downstream applications for transparent fused quartz rods are highly concentrated. According to industry data, approximately 48% of demand comes from the semiconductor processing sector, where they are used for wafer handling, diffusion furnace tube supports, and etching chamber components; the optics and optical communications industries account for about 29%, while laboratory equipment and industrial heating systems make up the remainder of the market. Additionally, they are consistently used in applications such as thermocouple protection tubes, level gauge sight glasses, X-ray tubes, and vacuum tubes.

What advantages of quartz rods offer practical value to buyers?

From a procurement and usage perspective, the value of short, transparent fused quartz rods is reflected in three aspects: First, their high purity ensures that no metal ion contamination is introduced during semiconductor manufacturing or analytical experiments, thereby safeguarding process yield and experimental accuracy; Second, low thermal expansion and thermal shock resistance prevent the parts from cracking under rapid cooling and heating conditions, extending replacement cycles and reducing downtime and maintenance costs; third, excellent optical transmittance allows them to serve both as structural supports and optical pathways, reducing the need for additional optical components.

Do you offer customization for non-standard dimensions? What is the lead time?

We offer customization ranging from 1 mm to 150 mm in diameter, and length, end face geometry (flat or tapered), and surface finish (polished or flame-polished) can all be machined according to drawings. We have the capability to produce rapid prototypes for standard short rods, and delivery lead times for bulk orders can be flexibly negotiated based on the complexity of the specifications.

Why choose us?

We have advanced production and processing capacity of fused silica materials, and strict quality control system to ensure that each quartz rod has consistent high quality. We are committed to becoming your trusted partner through high-performance products and professional customized solutions, helping you overcome technical challenges and drive innovation.

With its extreme miniaturization, high reliability and customization flexibility, the short transparent fused silica rod has become an indispensable key material in high-end manufacturing. Whether it's performance upgrades to replace traditional solutions or the development of breakthrough new technologies, we can provide comprehensive support from materials to processes. Contact us immediately for sample testing and customized solutions!

Luverre Quartz manufactures and sells a wide range of high quality quartz glass, including quartz tubes, quartz plates, quartz rods, quartz windows, quartz crucibles, quartz boats, quartz flanges, quartz beakers, quartz glass instruments, and more. We can meet all kinds of customized requirements for quartz glass products.