Kodi pali kusiyana kotani pakati pa white corundum ndi alumina?

White corundum ndi alumina sizofanana. Pachifukwachi, lolani mkonzi wochokera ku Henan Sicheng akuuzeni mwatsatanetsatane: Kodi pali kusiyana kotani pakati pa white corundum ndi alumina?

1. White corundum ndi abrasive abrasive opangidwa ndi alumina monga zopangira ndi kusungunuka ndi utakhazikika pa kutentha kwambiri. Alumina ndi gulu lolimba kwambiri.

2. Chigawo chachikulu cha white corundum ndi alumina. Makamaka, ndi mawonekedwe a kristalo a alumina, omwe ndi α-Al2O3. Kuphatikiza pa aluminiyamu, pali zonyansa zazing’ono monga iron oxide ndi silicon oxide. Alumina ndi okusayidi wokhazikika wa aluminiyamu. Zinthu zazikuluzikulu ndi okosijeni ndi aluminiyamu, ndipo mawonekedwe ake ndi aluminiyamu. Pali makristalo ambiri a yunifolomu komanso osakhala ofanana, monga α-Al2O3, β-Al2O3 ndi γ-Al2O3.

3. Zakuthupi Malo osungunuka a white corundum ndi 2250 ℃, ndipo mawonekedwe a kristalo ndi trigonal crystal. Malo osungunuka a alumina ndi otsika kuposa 2010 ° C-2050 ° C. Maonekedwe ake ndi ufa woyera, ndipo gawo lake la kristalo ndi γ gawo.

4. White corundum imagwiritsidwa ntchito popanga abrasives, koma imatha kugwiritsidwanso ntchito m’mafakitale monga zopangira, zoteteza, zoponya, ndi mchenga. Alumina amagwiritsidwa ntchito makamaka m’mafakitale monga kutentha, kupukuta, electroplating, ndi catalysts.