Description

Trisilicon Tetranitride (Alpha) CAS NO 12033-89-5 is a high-purity, advanced ceramic precursor material known for its exceptional thermal stability and hardness. This compound is critical for the development of high-performance silicon nitride-based ceramics and composites, offering superior material properties under extreme conditions. It is primarily sought by manufacturers in the advanced ceramics, electronics, and aerospace industries for applications requiring robust, wear-resistant components.

Application

• Advanced Ceramics Manufacturing: As a key precursor for producing high-strength, high-temperature silicon nitride (Si3N4) ceramics used in engine components, bearings, and cutting tools.
• Electronic Materials: For the synthesis of dielectric layers, passivation coatings, and as a material in semiconductor device fabrication.
• Protective Coatings: Used to create hard, corrosion-resistant, and thermal barrier coatings on metal substrates for aerospace and industrial applications.
• Composite Materials: As a reinforcing agent in metal-matrix and ceramic-matrix composites to enhance mechanical strength and thermal shock resistance.
• Research & Development: Serving as a fundamental material in academic and industrial R&D for exploring new nitride-based compounds and nanomaterials.
• Refractories: A component in specialized refractory linings for furnaces and reactors due to its stability at elevated temperatures.

Basic Information

Product Name	Trisilicon Tetranitride (Alpha)
CAS No.	12033-89-5
Molecular Formula	Si3N4
Molecular Weight	140.28 g/mol
Synonyms	Silicon Nitride (Alpha Phase); α-Si3N4; Trisilicon Tetranitride; Silicon Nitride Powder (Alpha); Alpha Silicon Nitride; Nitridosilane; Silicon(IV) Nitride (Alpha Form); Ceramic Grade Silicon Nitride
EINECS	234-796-8

Quality Control

Our Trisilicon Tetranitride (Alpha) is manufactured under controlled conditions to ensure batch-to-batch consistency and high purity. Quality is verified through a suite of analytical techniques including X-ray diffraction (XRD) for phase identification, particle size analysis (PSA), and elemental analysis. A Certificate of Analysis (COA) detailing purity, phase content, and key physical parameters is provided with every shipment to guarantee compliance with your technical requirements.

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 hygroscopic (moisture-sensitive) and should be kept under dry, inert conditions to prevent degradation. Keep away from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	White to grayish-white powder
Identification (XRD)	Matches α-Si3N4 reference pattern
Assay (Si3N4 Content)	≥ 99.0%
Alpha Phase Content	≥ 95%
Oxygen Content	≤ 1.5%
Metallic Impurities (Fe, Al, Ca)	≤ 0.1% (each)
Particle Size (D50)	0.5 - 2.0 µm
Specific Surface Area (BET)	5 - 15 m²/g
Loss on Drying (LOD)	≤ 0.5%

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