Niobium Silicide Powder

CAS Number:	12034-80-9
Linear Formula:	NbSi2
Purity:	99% - 99.999%
Appearance:	Gray Powder
Particle Size:	Customized

 

Product Description

Niobium Silicide (NbSi₂) Powder is a compound of niobium and silicon, commonly used in high-performance applications due to its exceptional high-temperature stability, resistance to oxidation, and superior mechanical properties. This powder form of niobium silicide is utilized primarily in the aerospace, automotive, and electronics industries, where materials must withstand extreme thermal and mechanical stress.

Niobium silicide is known for its unique combination of metallic conductivity and ceramic-like high temperature strength, making it a key component in high-performance alloys, particularly those used in turbine engines, nuclear reactors, and other systems that operate in harsh environments.

 

Features and Properties

High Temperature Resistance: Retains strength and stability even at elevated temperatures.

Oxidation Resistance: Excellent resistance to oxidation and corrosion at high temperatures.

High Hardness: Provides superior hardness and wear resistance in demanding applications.

High Melting Point: With a melting point of over 3000°C, it is suitable for high-temperature industrial environments.

Metallic Conductivity: Combines the advantages of metal and ceramic properties, providing conductive and durable performance.

 

Product Specifications

Purity: ≥99%

Appearance: Gray powder

Molecular Weight: 180.9 g/mol

Density: 7.2 g/cm³

Melting Point: 3050°C

Boiling Point: Sublimes above 3000°C

Particle Size: Typically in the range of 5 to 50 microns, customizable based on requirements.

 

Product Forms

Powder: Available in fine grades, ideal for use in powder metallurgy and the creation of high-performance alloys.

Custom Packaging: Available in various packaging options, such as sealed bags or containers, depending on order size and requirements.

 

Production Method and Production Equipments

The production of Niobium Silicide Powder involves several key steps:

Synthesis: The raw materials, typically niobium metal and silicon, are combined in a high-temperature furnace where they react to form niobium silicide.

Purification: The compound is purified to remove any impurities that may affect its performance in high-temperature applications.

Powder Formation: The purified niobium silicide is then processed into fine powder using specialized milling techniques to achieve the desired particle size.

The typical production equipment includes:

High-Temperature Furnaces (for the synthesis of niobium silicide from raw materials).

Ball Mills or Jet Mills (for fine powder milling and particle size control).

Hydrogen Reduction Reactors (for purification processes).

 

Applications and Related Industries

Niobium Silicide Powder has a wide range of applications due to its superior high-temperature properties:

Aerospace Industry: Used in the production of superalloys for turbine blades, jet engines, and other components exposed to extreme temperatures.

Automotive Industry: In high-performance parts requiring resistance to thermal expansion and wear.

Electronics Industry: Utilized in semiconductor components and materials for electronics that need to withstand high temperatures.

Energy Industry: Used in components for nuclear reactors, fuel cells, and thermal management systems.

Coatings and Hard Facing: Applied as a coating material in applications where wear resistance is critical.

Interesting Facts

High-Temperature Alloys: Niobium silicide is a key component in high-temperature superalloys used in jet engines and rocket propulsion systems, where it provides unparalleled strength and stability under extreme heat.

Material of Choice for Extreme Environments: Niobium silicide is known for its use in nuclear reactors, where its resistance to radiation and high temperatures ensures the longevity of critical components.

Ceramic-Like Strength: Despite its metallic nature, niobium silicide exhibits a combination of the properties of both metals and ceramics, allowing it to withstand high-temperature oxidation and mechanical wear without degradation.

 

Synonyms

Niobium Disilicide

NbSi₂

Niobium Silicide

 

Health & Safety Information

Hazard Classification: Niobium Silicide is not classified as hazardous but should be handled with care.

Handling: Use in a well-ventilated area to prevent inhalation of the powder. Avoid prolonged exposure to dust.

Safety Gear: Wear appropriate protective equipment such as gloves, goggles, and a dust mask when handling niobium silicide powder.

Storage: Store in a dry, cool, and well-ventilated area. Keep containers tightly closed to prevent contamination or moisture absorption.

Disposal: Dispose of in accordance with local regulations concerning metal and ceramic powders.

 

Chemical Identifiers

Linear Formula	NbSi2
MDL Number	MFCD00151537
EC No.	234-812-3
Beilstein/Reaxys No.	N/A
Pubchem CID	6336884
IUPAC Name	bis(λ2}-silanylidene)niobium
SMILES	[Si]=[Nb]=[Si]
InchI Identifier	InChI=1S/Nb.2Si
InchI Key	GXAAOBARRLPQRY-UHFFFAOYSA-N

Niobium Silicide NbSi2 Properties (Theoretical)

Compound Formula	NbSi2
Molecular Weight	149.08
Appearance	Powder, pieces, or solid in various forms
Melting Point	1950 °C
Boiling Point	N/A
Density	5.53-5.7 g/cm3
Solubility in H2O	Insoluble
Storage Temperature	Ambient temperatures
Exact Mass	148.860231
Monoisotopic Mass	148.860231

 

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