Description

Niobium Silicide (CAS NO 12034-80-9) is a high-performance intermetallic compound valued for its exceptional thermal stability and oxidation resistance at elevated temperatures. This material is critical for applications demanding structural integrity and protective properties in extreme environments. It is primarily utilized in the aerospace, electronics, and advanced materials sectors for components such as high-temperature furnace elements, diffusion barriers in semiconductors, and reinforcing phases in composite materials.

Application

• High-temperature structural components and heating elements for industrial furnaces.
• Diffusion barrier and protective coating layers in semiconductor and microelectronic devices.
• Reinforcement phase in metal-matrix and ceramic-matrix composites to enhance strength and thermal shock resistance.
• Oxidation-resistant coatings for aerospace components, such as turbine blades and engine parts.
• Raw material in the synthesis of other niobium-silicon based alloys and ceramics.
• Research and development of novel high-temperature superconductors and thermoelectric materials.

Basic Information

Product Name	Niobium Silicide
CAS No.	12034-80-9
Molecular Formula	NbSi2
Molecular Weight	149.08 g/mol
Synonyms	Niobium Disilicide; Silicon Niobide; Niobium(IV) Silicide; Diniobium Pentasilicide (Nb2Si5); Niobium Silicon Alloy; NbSi2; Niobium Silicide Powder
EINECS	234-796-5

Quality Control

Our Niobium Silicide 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 and spectroscopic methods for elemental analysis. Certificates of Analysis (COA) detailing purity, particle size distribution, and other critical parameters are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is moisture-sensitive (hygroscopic); keep the container tightly sealed in a dry environment to prevent degradation. Incompatible with strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	Gray to black powder
Identification (XRD)	Conforms to NbSi2 structure
Assay (NbSi2)	≥ 99.0%
Particle Size (D50)	1-10 µm (customizable)
Trace Metals (ICP)	≤ 0.1% total
Oxygen Content	≤ 0.5%

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