Silicon Nitride Ceramic Special-Shaped Part: Precision Solution for
High-End Equipment
At the boundary of precision machinery and industrial technology,
silicon nitride ceramic special-shaped parts are quietly pushing
the performance limits across multiple fields.
In the realm of high-end manufacturing, materials science often
presents bottlenecks for technological breakthroughs. Silicon
nitride ceramic, regarded as the "jewel in the crown of structural
ceramics," has become an indispensable material for precision
equipment due to its unique combination of properties.
This gray-black matte-finish silicon nitride ceramic special-shaped
part is specifically designed for demanding industrial
environments. It combines an irregular shape with a precision
structure to meet the stringent requirements of high-end equipment
for high temperature resistance, wear resistance, and non-magnetic
properties.
01 Product Overview
This product is made from high-performance silicon nitride ceramic,
presenting a uniform gray-black matte appearance. The material is dense and non-porous, ensuring uniformity and stability in physical performance.
The product features an irregular special-shaped design, skillfully
integrating a square ring-shaped grip section with a slender rod-shaped operation section. The rod end includes a special slot structure.
With smooth flowing lines and all edges featuring rounded transition treatment, the design enhances tactile comfort while avoiding stress
concentration, thereby extending the product's service life.
This precision structural design enables adaptation to complex
working environments, meeting the precise operation requirements of
high-end equipment.
02 Primary Applications
This silicon nitride ceramic special-shaped part plays a
significant role in multiple high-end fields:
Optical Instruments: Serves as precision positioning components, ensuring stability
and accuracy of optical systems
Semiconductor Manufacturing: Used in wafer handling systems for grasping devices, preventing
microscopic particle contamination
Precision Machinery Industry: Applied in adjustment or locking mechanisms of high-precision
machine tools and automated equipment
Aerospace: Suitable for high-temperature, high-strength environments such as
engines and transmission systems
Automotive Industry: Used in specialized equipment requiring high temperature and wear
resistance
03 Product Advantages
The silicon nitride ceramic special-shaped part offers multiple
exceptional advantages through its material properties:
High Temperature Resistance: Withstands temperatures up to 1000°C in air and 1400°C in protective atmospheres, maintaining dimensional stability at
elevated temperatures
Exceptional Mechanical Properties: High hardness (HV10 up to 1480), flexural strength exceeding 900MPa, fracture toughness ≥6 MPa·m⁻¹/²
Wear and Corrosion Resistance: Exhibits good inertness to most chemicals, with wear resistance
approaching diamond
Low Thermal Expansion Coefficient: 2.6-3.1×10⁻⁶/K (40-400°C to 40-800°C), ensuring dimensional stability during
temperature variations
Non-Magnetic and Insulating Properties: Volume resistivity >10¹⁴ Ω·cm, breakdown voltage >15 kV/mm, suitable for electromagnetically sensitive environments
04 Specifications Parameter Table
05 Manufacturing Process
The production of silicon nitride ceramic special-shaped parts
combines precision craftsmanship with strict quality control:
Powder Preparation: Silicon powder undergoes nitridation reaction in a nitrogen
atmosphere at high temperatures (approximately 1200-1300°C) to
generate silicon nitride powder, with strict control of impurities
such as Fe, O, and Ca below 2%
Forming Process: Cold Isostatic Pressing technology ensures uniform billet density
Sintering Process: Application of gas pressure sintering at 5-12MPa nitrogen pressure and 1800-2100°C conditions inhibits
silicon nitride decomposition and promotes material densification
Precision Machining: Post-processing via specialized precision machine tools ensures
dimensional accuracy
Surface Treatment: Final matte treatment creates a uniform, consistent surface
texture
06 Usage Instructions
To ensure lasting and stable product performance, please follow
these guidelines:
Installation Requirements: Use heating fit method for installation, transforming tight fits
into loose fits by utilizing thermal expansion through heating the
ceramic or mating parts
Operating Environment: Recommended for use within room temperature to 1000°C (in air) or 1400°C (in protective atmosphere)
Cleaning Methods: Handle with care, avoiding surface scratches during cleaning to
prevent slipping marks and contamination
Storage Conditions: Store separately by variety, specification, and grade in
warehouses or sheds, avoiding humid environments
07 After-Sales Service
We provide comprehensive customer support:
Quality Assurance: Clear information on safe usage period and manufacturing date
Professional Consultation: Professional technical consultation services to address
application questions
Customization Services: Custom products available according to specific customer
requirements
08 Frequently Asked Questions
Q1: What is the primary failure mode of silicon nitride ceramic
special-shaped parts?
A: The main failure mode is fracture under extreme loads, with
crushing load ratio ≥40%, ensuring operation within safe limits
Q2: What are the standout advantages of silicon nitride compared to
other ceramic materials?
A: Silicon nitride combines high strength, high toughness, and good
thermal stability, with fracture toughness up to 6.5 MPa·√m,
significantly higher than alumina and aluminum nitride
Q3: Can this product be used in strong acid and alkali
environments?
A: Silicon nitride is unaffected by dilute acids, but concentrated
strong alkali solutions slowly corrode silicon nitride, while
molten strong alkalis rapidly convert it to silicate and ammonia
Q4: How is product dimensional accuracy ensured?
A: Through precision machine tool processing and strict sintering
control, ensuring product dimensional precision and consistency
