Description

Tungsten Silicide (WSi₂) is a high-performance refractory metal silicide with exceptional thermal and chemical stability. This compound is critical for applications demanding high-temperature resistance, excellent electrical conductivity, and robust adhesion properties. It is primarily utilized in the semiconductor, aerospace, and advanced ceramics industries for creating durable, high-performance components and thin-film layers.

Application

• Semiconductor Manufacturing: Used as a gate electrode material and for forming low-resistance contacts and interconnects in integrated circuits (ICs).
• Diffusion Barriers: Acts as a stable barrier layer in microelectronics to prevent interdiffusion between silicon substrates and metal layers.
• High-Temperature Coatings: Applied as a protective coating on components exposed to extreme heat and corrosive environments, such as in turbine engines.
• Heating Elements: Employed in the fabrication of heating elements for high-temperature furnaces due to its stability and conductivity.
• Advanced Ceramics: Serves as an additive or reinforcement phase in ceramic matrix composites to enhance toughness and thermal shock resistance.
• Thin-Film Deposition: A key target material for physical vapor deposition (PVD) processes like sputtering to create thin films with specific electronic properties.

Basic Information

Product Name	Tungsten Silicide
CAS No.	12039-95-1
Molecular Formula	WSi₂
Molecular Weight	240.01 g/mol
Synonyms	Tungsten Disilicide; Silicon Tungsten; WS2; Tungsten(IV) Silicide; Tungsten Silicide (WSi2); Refractory Silicide; Molybdenum Silicide Group Compound
EINECS	234-911-7

Quality Control

Our Tungsten Silicide is manufactured under controlled conditions to ensure batch-to-batch consistency and high purity. Quality is verified through a series of analytical techniques including X-ray diffraction (XRD), scanning electron microscopy (SEM), and elemental analysis. A Certificate of Analysis (COA) detailing purity, particle size distribution, and metallic impurity levels is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is moisture-sensitive; keep the container tightly sealed in a dry environment to prevent oxidation or hydrolysis.

Specification

Item	Specification
Appearance	Gray to black powder
Identification (XRD)	Conforms to WSi₂ structure
Assay (Tungsten Content)	≥ 99.0%
Particle Size (D50)	1-10 µm (Customizable)
Metallic Impurities (ICP)	< 0.5% total
Oxygen Content	< 1.0%
Bulk Density	Contact for details

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.