Description

Tungstensilicide (CAS NO 12627-41-7) is a high-performance refractory metal silicide compound essential for advanced materials engineering. It offers exceptional thermal stability, high electrical conductivity, and superior resistance to oxidation and chemical attack, making it a critical material for demanding high-temperature environments. This compound is primarily utilized by manufacturers in the semiconductor, aerospace, and specialty ceramics industries for applications requiring robust and reliable material performance.

Application

• Semiconductor Manufacturing: As a key material for diffusion barriers and low-resistivity gate electrodes in integrated circuits (ICs) and microelectromechanical systems (MEMS).
• Thermal Spray Coatings: Used to create wear-resistant, oxidation-protective coatings on turbine blades, engine components, and other high-temperature metal parts.
• Heating Elements: Employed in the production of high-temperature furnace elements due to its excellent thermal and electrical properties.
• Specialty Ceramics & Composites: Acts as a reinforcing phase or sintering aid in advanced ceramic matrix composites (CMCs) to enhance toughness and thermal shock resistance.
• Thin Film Deposition: Served as a sputtering target for physical vapor deposition (PVD) processes to create functional thin films on various substrates.
• Chemical Processing Equipment: Utilized in components that require corrosion resistance in harsh chemical environments.

Basic Information

Product Name	Tungstensilicide
CAS No.	12627-41-7
Molecular Formula	WSi₂
Molecular Weight	240.01 g/mol
Synonyms	Tungsten disilicide; Tungsten(IV) silicide; Disilanylidynetungsten; WSi₂; Silicotungstic; WS2 (when referring to the disilicide); Refractory metal silicide
EINECS	235-763-1

Quality Control

Our Tungstensilicide is manufactured under stringent process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical techniques, including X-ray diffraction (XRD) for phase identification, inductively coupled plasma (ICP) analysis for metallic impurities, and laser diffraction for particle size distribution. A Certificate of Analysis (COA) detailing all relevant specifications 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). The product is stable under normal storage conditions but should be kept away from strong acids and strong oxidizing agents. For long-term storage, maintaining a low-humidity environment is recommended to prevent any potential surface oxidation.

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 (Custom sizes available)
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.