- 08
- Sep
Izitini ze-corundum ezihlanganisiwe zesithando somlilo sengilazi
Izitini ze-corundum ezihlanganisiwe zesithando somlilo sengilazi
Isitini esimhlophe esimhlophe esifakwe ku-α-AL2O3, esisohlelweni lwe-trigonal crystal. Kutholakala ngokuncibilikisa i-alumina yezimboni emazingeni okushisa aphezulu kusithando somlilo kagesi, ukupholisa nokufaka amakhemikhali abe ingotshi, bese kugaywa, kukhethwa, kucutshungulwa futhi kuhlolwe. Kuyinto ezinzile phakathi kokuhlukahluka okuningi kwe-alumina. Inephuzu lokuncibilika eliphakeme (2030), ukuminyana okuphezulu (3.99 ~ 4.0g / cm3), ukwakheka okuhlanganisiwe, ukuqhutshwa okuhle kokushisa, ukulingana kokushisa okushisayo okuncane (86 × 10-7 /) nomfaniswano. I-amphoteric oxide, evame ukuba ne-alkaline engenamandla noma engathathi hlangothi emazingeni okushisa aphezulu, futhi inokuzinza okuhle kwamakhemikhali. Ngakho-ke, i-corundum emhlophe ehlanganisiwe iyinto enqabayo yokuphonsa utshalomali. Izinto ezihlanganisiwe ezimhlophe ze-corundum zicebile kwizinsizakusebenza zamaminerali futhi ngamanani aphansi, okufanelekile ukukhethwa nokwenyuswa.
Izinkomba zomzimba nezamakhemikhali zezitini ezihlanganisiwe ze-corundum engilazini encibilikisa isithando somlilo:
Into | I-FUSED CAST ALUMINA | I-FUSED CAST ALUMINA | I-FUSED CAST ALUMINA | |
ab Alumina TY-M | a- I-Alumina TY-A | b- I-Alumina TY-H | ||
Ukwakheka kwamakhemikhali% | I-Al2O3 | 94 | 98.5 | 93 |
SiO2 | 1 | 0.4 | – | |
I-NaO2 | 4 | 0.9 | 6.5 | |
Amanye ama-oxide | 1 | 0.2 | 0.5 | |
Ukuhlaziywa kwe-Crystallographic% | a-Al2O3 | 44 | 90 | – |
b-Al2O3 | 55 | 4 | 99 | |
Isigaba seVitreous | 1 | 6 | 1 |