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化学成分(Chemical Composition)
| 符号 | Chemical Composition |
|---|---|
| Aluminum(AL) | 2.0 ~ 3.5% |
| Yttrium(Y) | 4.0 ~ 5.0% |
| Titanium(Ti) | 1.0% ~ 6.0% |
| Oxygan(O) | 4.5% ~ 6.0% |
| Carbonⓒ | 0.3% ~ 0.8% |
机械性能(Mechanical Property)
| Performance of Si3N4 Ceramic Material | ||
|---|---|---|
| Density | g/㎤ | ≥3.2 |
| Hardness(HV) | Hv | 1400 ~ 1600 |
| Bending Strength | Mpa | ＞800 |
| Crushing Strength | Mpa | ＞4000 |
| Elastic Modulus | Gpa | 300 ~ 315 |
| Fracture Toughness | Mpa m½ | 6 ~ 8 |
| Thermal Expansion Coefficient | 10-6/K | 2.2 ~ 3.0 |
| Max Usage Temperature | ℃ | 1200 |
生产等级(Grade) (单位 : ㎛)
| 等级 | 公称的适用范围 | 形状精密度及粗糙度 | 区间精密度及尺寸 | ||||
|---|---|---|---|---|---|---|---|
| Grade | Metric | Inch | 直径变化量(VDWS) | 真球度(最大) | 表面粗糙度(Ra) | LOT相差 (VDWL) | 尺寸间隔 |
| 10 | 0.3 ~ 25 | 0.025 ~ 1 | 0.25 | 0.25 | 0.025 | 0.5 | 1 |
用于磨球机的产品则以另外的等级生产.