Silicon nitride ceramic rings are made by sintering silicon nitride material and then precision machining. Silicon nitride possesses characteristics such as ultra-high mechanical strength, thermal shock resistance, lightweight, and high wear resistance.
Furthermore, compared to zirconium oxide and alumina, silicon nitride exhibits superior dynamic mechanical properties and is increasingly used in high-end machinery, aerospace, new energy, and semiconductor equipment.
Advantages of silicon nitride ceramic rings
High Strength and Impact Resistance
Silicon nitride is one of the most advanced ceramics in terms of overall mechanical properties, possessing high flexural strength, high compressive strength, resistance to mechanical impact, and resistance to breakage.
耐熱衝撃性
Silicon nitride has extremely strong resistance to sudden temperature changes and can adapt to conditions such as rapid cooling from high temperature, high-frequency thermal cycling, and thermal shock, while still remaining stable and not easily cracking.
Lightweight and suitable for high-speed operation
Silicon nitride has a lower density than steel and most ceramics, making it lighter and reducing centrifugal force, mechanical load, and high-speed rotation stability, thus reducing energy consumption.
優れた耐摩耗性
Silicon nitride has an extremely low coefficient of friction and high hardness, making it a type of long-life wear-resistant component. It can provide precise guidance, is more wear-resistant, less prone to seizing, and has a longer maintenance cycle.
Performance characteristics of silicon nitride ceramic rings
| 名前 | 窒化シリコン | |||
| 密度 | g/cm3 | 3.18-3.40 | ||
| 圧縮強度 | MPa | 3000 | ||
| 曲げ強度（25℃） | MPa | 760-830 | ||
| ワイブル係数 m | – | 12-20 | ||
| 破壊靭性K私 | MPa m1/2 | 6.2-8 | ||
| ヤング率 | GPa | 300 | ||
| 硬度 | GPa | 15 | ||
| ポアソン比 | – | 0.26 | ||
| 窒化シリコンの物理的性質 | ||||
| 熱伝導率（20℃） | W/mK | 25-28 | ||
| 熱衝撃パラメータR1 | K | 550-690 | ||
| 熱衝撃パラメータR2 | ワット/メートル | 15-18 | ||
| 熱線膨張係数1 25℃ ➞ 250℃ | 10-6/K | 1.9 | ||
| 熱線膨張係数1 25℃ ➞ 1000℃ | 10-6/K | 3.1 | ||
| 最高温度（酸化） 2 | °C | 1400 | ||
| 誘電率 | °C | 1200 | ||
| 体積抵抗率（25℃） | オーム-cm | 1014 | ||
Why choose GORGEOUS CERAMICS for customization?
GORGEOUS CERAMICS boasts 15 years of experience in ceramic manufacturing and has obtained ISO 9001:2015, IATF 16949:2016, and ISO 14001:2015 environmental management system certifications. This means that GORGEOUS can provide customers with higher quality silicon nitride ceramic rings.
よくある質問
What are the advantages of silicon nitride ceramic rings compared to zirconium oxide?
Silicon nitride is lighter, has stronger thermal shock resistance, and is more suitable for high-speed rotation, high-temperature, and dynamic load environments.
Are silicon nitride ceramic rings suitable for high-speed equipment?
Yes, they are very suitable because silicon nitride has a low density and a low coefficient of friction, which can reduce heat generation and wear during high-speed operation.
Can silicon nitride ceramic rings be customized with complex structures?
Yes. GORGEOUS CERAMICS (GGS) supports custom-made dimensions, tolerances, slots, micropores, and complex irregular structures according to drawings.
