INDUSTRY COMPONENT

Silicon Dioxide Matrix

Ultra-pure fused silica powder matrix used in high-temperature industrial applications requiring exceptional thermal stability and chemical inertness.

View Specifications

Component Specifications

Definition
A synthetic amorphous silicon dioxide (SiO₂) matrix produced through high-temperature fusion of quartz sand, characterized by extremely low impurity levels (<10 ppm metallic impurities), high chemical purity (>99.99% SiO₂), and controlled particle size distribution. This material forms the foundational matrix for high-purity fused silica products used in semiconductor, optical, and high-temperature industrial applications where thermal shock resistance, low thermal expansion, and optical transparency are critical.
Working Principle
Functions as a thermally stable, chemically inert matrix that maintains structural integrity at temperatures up to 1200°C. The amorphous structure prevents crystalline phase transitions, while the high purity minimizes contamination in sensitive applications. The material's low coefficient of thermal expansion (0.55 × 10⁻⁶/K) provides exceptional thermal shock resistance.
Materials
Synthetic amorphous silicon dioxide (SiO₂), purity >99.99%, particle size distribution: D50 = 45-65 μm, specific surface area: 2-4 m²/g, bulk density: 0.8-1.2 g/cm³, moisture content: <0.1%
Technical Parameters
  • Purity >99.99% SiO₂
  • Bulk Density 0.8-1.2 g/cm³
  • Softening Point >1650°C
  • Refractive Index 1.458 @ 589 nm
  • Particle Size D50 45-65 μm
  • Dielectric Constant 3.8 @ 1 MHz
  • Metallic Impurities <10 ppm
  • Thermal Conductivity 1.4 W/(m·K)
  • Specific Surface Area 2-4 m²/g
  • Thermal Expansion Coefficient 0.55 × 10⁻⁶/K
Standards
ISO 16220, ISO 3262-20, DIN 55913, ASTM E222

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Silicon Dioxide Matrix.

silicon dioxide matrix fused silica powder high-purity SiO₂ thermal shock resistant material amorphous silica matrix industrial silica matrix semiconductor grade silica Silicon Dioxide Matrix in Non-Metallic Mineral Product Manufacturing

Parent Products

This component is used in the following industrial products

High-Purity Fused Silica Powder

Ultra-pure amorphous silicon dioxide powder for industrial applications

View Product Details

Engineering Analysis

Risks & Mitigation
  • Respirable crystalline silica exposure during handling
  • Thermal shock if heated/cooled too rapidly
  • Moisture absorption affecting flow properties
  • Electrostatic buildup during powder transfer
FMEA Triads
Trigger: Inadequate particle size control during manufacturing
Failure: Poor sintering density and mechanical weakness
Mitigation: Implement statistical process control with laser diffraction particle size analysis and adjust milling parameters accordingly
Trigger: Metallic contamination from processing equipment
Failure: Reduced purity affecting semiconductor yield
Mitigation: Use ceramic-lined equipment, implement regular purity testing, and establish material traceability protocols
Trigger: Moisture absorption during storage
Failure: Agglomeration and inconsistent flow properties
Mitigation: Store in sealed containers with desiccant, control relative humidity below 40%, and implement moisture testing before use

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Particle size distribution: ±5% of D50 value; Chemical purity: ±0.01% of specified value; Bulk density: ±0.1 g/cm³
Test Method
Particle size: ISO 13320 laser diffraction; Chemical purity: ISO 16220 XRF analysis; Thermal properties: ASTM E228 dilatometry; Moisture content: ISO 787-2 loss on drying

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

Related Components

Particle Size Distribution Agent
Specialized chemical agent for controlling particle size distribution in high-purity fused silica powder production
Ceramic Roller Body
High-temperature ceramic roller body for float glass annealing lehrs, providing uniform heat distribution and minimal thermal expansion.
Ceramic Base Powder
Ceramic base powder is a fine particulate material used as the foundational component in high-temperature ceramic coatings, providing thermal resistance, wear protection, and chemical stability.
Binder Additive
Specialized additive for high-temperature ceramic coating powders that enhances binding properties and structural integrity.

Frequently Asked Questions

What is the maximum operating temperature for silicon dioxide matrix?

The silicon dioxide matrix maintains structural integrity up to 1200°C continuously, with short-term exposure capability up to 1400°C. The softening point exceeds 1650°C.

How does particle size affect performance in industrial applications?

Controlled particle size distribution (45-65 μm D50) ensures optimal packing density, flow characteristics, and sintering behavior. Finer particles improve surface area for reactions, while coarser particles enhance flowability in powder handling systems.

What industries commonly use high-purity fused silica powder matrix?

Primary applications include semiconductor manufacturing (wafer carriers, diffusion tubes), optical components (lenses, prisms), high-temperature furnace linings, investment casting molds, and laboratory equipment requiring chemical inertness.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Request Manufacturing Insight for Silicon Dioxide Matrix

Side Walls Surface Modifier