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| Categories | Silicon Nitride Ceramics |
|---|---|
| Place of Origin: | Made In China,Zhejiang,Jinhua |
| Brand Name: | Dayoo |
| MOQ: | Negotiate |
| Price: | Negotiate |
| Delivery Time: | Negotiable |
| Payment Terms: | Negotiable |
| Watts: | 40-100W |
| Type: | Ceramic Balls |
| Dielectric Constant: | 9.8 |
| Thermal Expansion Coefficient: | 3.2 x 10^-6/°C |
| Material: | Silicon Nitride |
| Size Range: | 0.5mm-100mm |
| Dimension: | 128*17*4mm |
| Quality Control: | 100% Inspection |
| Port: | Shanghai |
| Feature: | high stength resistance |
| Chemical Resistance: | Excellent |
| Fracture Toughness: | 6-7(MPa•m1/2) |
| Tolerance: | ±0.002mm |
| Usage: | high temperature environment |
| Wear Resistance: | Excellent |
| Packaging Details: | Carton |
| Company Info. |
| Dayoo Advanced Ceramic Co.,Ltd |
| Verified Supplier |
| View Contact Details |
| Product List |
This product is a silicon nitride ceramic irregular structural block manufactured using hot isostatic pressing sintering technology. It features a uniform dark gray matte texture, with a finely uniform matte pattern achieved through precision sandblasting treatment. The product adopts an innovative irregular polygonal design, with accurately positioned rectangular protrusions on the top and symmetrically distributed mounting holes along the edges to ensure convenient and stable installation. This unique design meets both the structural strength requirements in complex working conditions and the engineering needs of multi-functional integration.
• High-end Equipment Manufacturing: High-temperature insulation
bases for special mechanical equipment, support blocks for
precision transmission systems
• Aerospace: Thermal insulation components for engine test
platforms, instrument mounting bases for spacecraft
• New Energy Sector: Fuel cell stacking pressure plates, insulation
support components for electrolyzers
• Semiconductor Manufacturing: Adjustment pads for lithography
machine platforms, carrier bases for vacuum coating equipment
• Scientific Research: Fixtures for high-low temperature testing
devices, vibration isolation platforms for precision measuring
instruments
→ Exceptional Temperature Resistance: Continuous operating
temperature up to 1350°C, short-term resistance up to 1500°C
→ Superior Mechanical Properties: Compressive strength ≥2500 MPa,
flexural strength ≥700 MPa
→ Excellent Wear Resistance: Vickers hardness ≥1550 HV, wear
coefficient <1×10⁻⁷ mm³/N·m
→ Outstanding Insulation Performance: Dielectric strength ≥25
kV/mm, volume resistivity >10¹⁶ Ω·cm
→ Exceptional Thermal Shock Resistance: Withstands sudden
temperature changes of 1000°C without cracking
| Performance Indicator | Technical Parameter |
|---|---|
| Material Composition | Si₃N₄ ≥97.5% |
| Surface Treatment | Precision Sandblasting (Ra=0.8-1.2 μm) |
| Bulk Density | 3.28 g/cm³ |
| Hole Diameter Tolerance | ±0.015 mm |
| Flatness | ≤0.025 mm |
| Operating Temperature | -196℃ ~ 1350℃ |
| Thermal Expansion Coefficient | 3.1×10⁻⁶/℃ |
| Fracture Toughness | 8.0 MPa·m¹/² |
Nanoscale powder pretreatment → Binder plasticization → Isostatic pressing molding → Thermal debinding → Hot isostatic pressing sintering → Ultrasonic cleaning → 3D inspection → Diamond precision machining → Non-destructive testing → Vacuum packaging
Use specialized positioning fixtures during installation to ensure accurate alignment of all mounting holes
Recommend using high-temperature specific fasteners with preload torque not exceeding 35 N·m
When used in high-temperature conditions, recommend using ceramic fiber gaskets
Avoid direct contact with molten metals to prevent metal penetration
Regularly perform ultrasonic cleaning to maintain surface cleanliness
• 36-month extended quality assurance period
• Complimentary installation guidance and technical training
• Support for full product lifecycle quality tracking
• 48-hour expedited service for emergency orders
• Establishment of dedicated customer technical files
Q: How is the dimensional stability of the product?
A: Testing shows dimensional change rate <0.02% after 1000 hours
at 1000°C
Q: Is custom complex structure supported?
A: Supports 3D modeling customization, with maximum processable
size of 300×300×150 mm for complex structural parts
Q: How does it perform under extreme temperature cycling
conditions?
A: The product undergoes 1000 thermal cycles from -196°C to 1200°C
without any performance degradation
Q: Does the matte surface treatment affect usage precision?
A: The matte treatment only affects surface appearance, with key
mounting surfaces guaranteed to meet ±0.01 mm precision
requirements
Technical Innovation:
This product utilizes gradient sintering technology to create a
grain gradient distribution structure within the material, ensuring
both high surface hardness and improved overall impact resistance.
The top rectangular protrusions employ a bionic support structure
design, enhancing load-bearing capacity while reducing weight. The
symmetrical holes use special chamfering processes to effectively
prevent stress concentration, increasing the product's service life
by more than 3 times compared to traditional structures under
extreme working conditions.

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