Dayoo Advanced Ceramic Co.,Ltd
| Delivery Time | Negotiable |
| Payment Terms | Negotiable |
| Dielectric Strength | 10 kV/mm |
| Bending Strength | ＞750 MPa |
| Temperature Range | Up to 1,400°C |
| Wattage Density | 2~25W/cm2 |
| Shape | Round type |
| Fracture Toughness | 7 MPa |
| Density | 3.2 g/cm3 |
| Port | Shanghai |
| Thermal Shock Resistance | 500°C |
| Dimension | 128*17*4mm |
| Melting Point | 1900°C |
| Hardness | 9 Mohs |
| Thermal Expansion Coefficient | 3.2 x 10^-6 /K |
| Dimensional Stability | High |
| Relative Density | 99% |
| Place of Origin | Made In China |
| Brand Name | Dayoo |
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Product Specification
| Delivery Time | Negotiable | Payment Terms | Negotiable |
| Dielectric Strength | 10 kV/mm | Bending Strength | ＞750 MPa |
| Temperature Range | Up to 1,400°C | Wattage Density | 2~25W/cm2 |
| Shape | Round type | Fracture Toughness | 7 MPa |
| Density | 3.2 g/cm3 | Port | Shanghai |
| Thermal Shock Resistance | 500°C | Dimension | 128*17*4mm |
| Melting Point | 1900°C | Hardness | 9 Mohs |
| Thermal Expansion Coefficient | 3.2 x 10^-6 /K | Dimensional Stability | High |
| Relative Density | 99% | Place of Origin | Made In China |
| Brand Name | Dayoo | ||
| High Light | High Temperature Components Ceramics | ||
High-Performance Silicon Nitride Ceramic Cylinder with Top Groove for Industrial Applications
Product Description
This industrial component is precision-engineered from high-performance Silicon Nitride Ceramic, featuring a cylindrical geometry with a uniform matte finish and a precision-machined circular groove on its top surface. The part exhibits the characteristic dark gray color of silicon nitride, with a dense and homogeneous microstructure that underscores superior engineering ceramic manufacturing. As an advanced technical ceramic, silicon nitride is renowned for its exceptional hardness, outstanding wear resistance, excellent thermal shock resistance, and stable chemical properties, making it ideally suited for demanding industrial applications.
Exceptional Mechanical Properties: Vickers hardness exceeding Hv1500 and a flexural strength ≥ 650 MPa.
Superior Wear Resistance: Low friction coefficient (<0.15) and a service life 5-10 times longer than traditional metal materials.
Excellent High-Temperature Stability: Capable of long-term, stable operation in environments up to 1200°C, with outstanding thermal shock resistance.
Stable Chemical Inertia: Resistant to acids, alkalis, and non-reactive with most molten metals.
Precision Engineering: The top groove can be machined to tight tolerances of ±0.01 mm, ensuring precise assembly.
Mechanical Engineering: High-speed bearing rollers, mechanical seal rings, precision guideway sliders.
Semiconductor Manufacturing: Vacuum end-effector grippers, wafer chucks, etching equipment components.
Automotive Industry: Turbocharger rotors, engine nozzles, braking system components.
Metrology & Instrumentation: Precision measurement platforms, sensor load-bearing elements, optical instrument bases.
| Parameter | Technical Index |
|---|---|
| Material Composition | Si₃N₄ Content ≥ 93% |
| Bulk Density | 3.20 - 3.28 g/cm³ |
| Vickers Hardness | HV0.5 1500 - 1700 |
| Flexural Strength | 650 - 800 MPa |
| Fracture Toughness | 6.5 - 7.5 MPa·m¹/² |
| Maximum Service Temperature | 1200 °C (in oxidizing atmosphere) |
| Coefficient of Thermal Expansion | 3.2 × 10⁻⁶/°C |
| Surface Roughness | Ra 0.4 - 0.8 μm |
High-Purity Powder Formulation → Spray Drying → Dry Pressing → Cold Isostatic Pressing (CIP) → Sintering under Controlled Atmosphere → CNC Grinding → Precision Groove Machining → Non-Destructive Testing → Dimensional Inspection → Cleaning & Packaging.
Installation Guidance: A clearance fit of 0.01 - 0.03 mm is recommended when assembling with metal components.
Operational Environment: Avoid direct contact with hydrofluoric acid and hot, concentrated alkaline solutions.
Cleaning & Maintenance: Ultrasonic cleaning with organic solvents is recommended; avoid mechanical scraping.
Storage Conditions: Store in a dry and clean environment to prevent physical impact.
We offer an 18-month product quality warranty, supported by a dedicated technical team. Individual customer service files are maintained for proactive follow-up. Emergency technical support is guaranteed within a 24-hour response time.
Q1: How does the wear resistance of this silicon nitride cylinder perform?
A1: Under identical operating conditions, its wear resistance is 8-10 times greater than bearing steel, making it particularly suitable for high-wear environments.
Q2: Can you manufacture custom sizes?
A2: Yes, we support custom manufacturing. Maximum dimensions can reach 200 mm in outer diameter and 150 mm in height.
Q3: What is the service life under high-temperature and high-speed conditions?
A3: Under conditions of 800°C and 5000 rpm rotational speed, the service life can exceed 10,000 hours.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter
Total Annual:
>1000000
Employee Number:
>100
Ecer Certification：
Verified Supplier
We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. Deyu Precision Ceramics Technology Co., Ltd. has many years of e... We are a company with many years of experience in the production of special precision ceramics and the ability to design, manufacture, process and sell structural and functional parts of various special precision ceramics. Deyu Precision Ceramics Technology Co., Ltd. has many years of e...
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