- 08
- Sep
Biriky corundum namboarina ho lafaoro fandrendrehana fitaratra
Biriky corundum namboarina ho lafaoro fandrendrehana fitaratra
Ny biriky corundum fotsy mifangaro dia α-AL2O3, izay an’ny rafitra kristaly trigonal. Izy io dia azo avy amin’ny alàlan’ny alàlan’ny alàlan’ny alikaola indostrialy amin’ny hafanana ambony ao anaty lafaoro misy herinaratra, ny fampangatsiahana sy ny fanaovana kristaly ho lasa ingot, ary avy eo fanorotoroana, fisafidianana, fanodinana ary fisavana. Io no iray miorina eo amin’ireo karazana alumina maro. Izy io dia manana teboka miempo avo (2030), hakitroka avo (3.99 ~ 4.0g / cm3), firafitra kely, fitondra hafanana tsara, coefficient fanitarana hafanana kely (86 × 10-7 /) ary fanamiana. Izy io dia amphoteric oxide, matetika malemy alkaline na tsy miandany amin’ny mari-pana ambony, ary manana fitoniana simika tsara. Noho izany, ny corundum fotsy mifangaro dia fitaovana marefo amin’ny fandefasana vola. Ny fitaovana corundum fotsy mifangaro dia manankarena amin’ny harena an-kibon’ny tany ary ambany ny vidiny, izay mendrika ny voafantina sy hampiroborobo.
Fanondroana ara-batana sy simika an’ny biriky corundum mifangaro ao anaty lafaoro fitotoana fitaratra:
Item | ALUMINA CAST FUSED | ALUMINA CAST FUSED | ALUMINA CAST FUSED | |
ab Alumina TY-M | a- Alumina TY-A | b- Alumina TY-H | ||
Composialy simika% | Al2O3 | 94 | 98.5 | 93 |
SiO2 | 1 | 0.4 | – | |
NaO2 | 4 | 0.9 | 6.5 | |
Oxydeza hafa | 1 | 0.2 | 0.5 | |
Fanadihadiana Crystallographic% | a-Al2O3 | 44 | 90 | – |
b-Al2O3 | 55 | 4 | 99 | |
Dingana Vitreous | 1 | 6 | 1 |