- 14
- Dec
Sintered Mullite
Sintered Mullite
I-Mullite yikhompawundi yokubini ekhoyo ngokuzinzileyo phantsi koxinzelelo oluqhelekileyo kwi-Al2O3-SiO2 inkqubo yokubini. Ifomula yeekhemikhali yi-3Al2O3-2SiO2, kwaye ukubunjwa kwethiyori: Al2O3 71.8%, SiO2 28.2%. Xa kuthelekiswa ne-mullite yendalo*, i-mullite esetyenziswa ngokuqhelekileyo yenziwa ngobuchule, kuquka sintered mullite kunye ne-mullite edibeneyo.
I-synthetic mullite yimathiriyeli ekrwada ekumgangatho ophezulu. Ineempawu zokwandiswa okufanayo, uzinzo olugqwesileyo lomothuko we-thermal, indawo yokuthambisa yomthwalo ophezulu, ixabiso elincinci lobushushu obuphezulu, ubulukhuni obuphezulu, kunye nokuchasana kakuhle kwemichiza.
Inkqubo yemveliso kunye nendlela ye sintered mullite:
I-mullite ye-Sintered yenziwe nge-bauxite yendalo ekumgangatho ophezulu njengemathiriyeli ekrwada, kwaye ifakwe kwi-onti ejikelezayo yobushushu obuphezulu obungaphezulu kwe-1750℃ ngenkqubo yokukhetha kunye ne-homogenization yamanqanaba amaninzi.
Iimpawu zokusebenza kunye nokusetyenziswa kwe-sintered mullite:
I-mullite ye-Sintered ineempawu zomxholo ophezulu, ubuninzi bobuninzi obukhulu, uzinzo oluhle lokutshatyalaliswa kwe-thermal, ixabiso elincinci lokunyuka kweqondo lokushisa eliphezulu kunye nokuxhathisa okulungileyo kwimichiza, kwaye umgangatho wayo uzinzile. Kwangaxeshanye, i-sintered mullite yimveliso yeemilo ezahlukeneyo kunye nokungaqiniseki. Eyona imathiriyeli ekrwada yezixhobo ezichasayo, iindawo ezingenanto zococeko, ukuphosa ngokuchanekileyo kunye nezinye iimveliso.
Izalathisi zekhemikhali zomzimba kunye neekhemikhali ze-sintered mullite:
kwiBanga | Al2O3% | SiO2% | Fe2O3% | R2O% | Ubuninzi bobuninzi (g/cm3) | Ukufunxwa kwamanzi(%) |
M70 | 68-72 | 22-28 | ≤1.2 | ≤0.3 | ≤2.85 | ≤3 |
M60 | 58-62 | 33-28 | ≤1.1 | ≤0.3 | ≥2.75 | ≤3 |
M45 | 42-45 | 53-55 | ≤0.4 | ≤1.6 | ≥2.50 | ≤2 |