项目Item | 指标Index |
化学成分(%) Chemical Composition | SiC,% | ≥72 |
Si3N4 | ≥18 |
Fe₂O₃,% | ≤1.0 |
耐火度,℃ Refractoriness | ≥1790 |
显气孔率,% Apparent porosity | ≤16 |
体积密度,g/cm³ BulkDensity | ≥2.6 |
常温耐压强度,Mpa Cold Crushing Strength | ≥180 |
高温抗折强度,Mpa Modulus of Rupture,Mpa | 1100℃X0.5h | ≥50 |
热震稳定性,次 Thermal Shock Resistance | 1100℃-水冷(cold water) | ≥60 |
0.2MPa荷重软化开始温度,℃ 0.2MPa Refractoríness under load | ≥1600 |
热膨胀率,%1000℃ Thermal Expansivity | ≤0.60 |