Barang | Kimia komposisi (fraksi massa)/% | Kapadetan bulk g/cm³ | Porisitas semu% | Refractoriness ℃ | 3Al2O3.2SiO2 Fase (fraksi massa)/% | |||
Al₂O₃ | TiO₂ | Fe₂O₃ | Na₂O+K₂O | |||||
SM75 | 73-77 | ≤0.5 | ≤0.5 | ≤0.2 | ≥2.90 | ≤3 | 180 | ≥90 |
SM70-1 | 69~73 | ≤0.5 | ≤0.5 | ≤0.2 | ≥2.85 | ≤3 | 180 | ≥90 |
SM70-2 | 67-72 | ≤3.5 | ≤1.5 | ≤0.4 | ≥2.75 | ≤5 | 180 | ≥85 |
SM60-1 | 57~62 | ≤0.5 | ≤0.5 | ≤0.5 | ≥2.65 | ≤5 | 180 | ≥80 |
SM60-2 | 57~62 | ≤3.0 | ≤1.5 | ≤1.5 | ≥2.65 | ≤5 | 180 | ≥75 |
S-Sintered; M-Mulite; -1: tingkat 1
Sampel: SM70-1, Sintered Mullite, Al₂O₃:70%; Produk kelas 1
Sanajan mullite aya salaku mineral alam, kajadian di alam jarang pisan.
Industri ngandelkeun mullites sintétik anu dihontal ku cara ngalebur atanapi 'calcining' rupa-rupa alumino-silikat sapertos kaolin, liat, jarang andalusite atanapi silika halus sareng alumina kana suhu anu luhur.
Salah sahiji sumber alam pangalusna mullite nyaéta kaolin (sakumaha liat kaolinik). Éta idéal pikeun produksi refractory kayaning bata dipecat atawa unfired, castables na mixes plastik.
Sintered mullite na fused mullite utamana dipaké pikeun produksi refractory jeung casting tina baja jeung alloy titanium.
• lalawanan ngabdi Alus
• ékspansi termal Low
• konduktivitas termal Low
• stabilitas kimiawi alus
• stabilitas thermo-mékanis alus teuing
• Alus lalawanan shock termal
• porosity Low
• Comparatively lightweight
• lalawanan oksidasi