Amatafari y’aluminium menshi- ni ubwoko bw’ibikoresho bishobora gusha ahanini bigizwe n’ivyuma vy’aluminium (Al2O3).
Bricks with an Al₂O₃ content exceeding 90% are classified as corundum bricks. Standards vary by country due to differences in available resources; for instance, European standards set the minimum Al₂O₃ content for high-alumina refractories at 42%. In China, high-alumina bricks are typically categorized into three grades based on Al₂O₃ content: Grade I (>75%), mu rwego rwa kabiri (60–75%), n’urwego rwa gatatu (48–60%).
Ivyo ni ibintu bishobora gusha bifise ivyuma vy’aluminiyumu (Al2O3) birenze 48%.
Ni ubwoko bw’ibikoresho bitagira aho bihuriye bifise alumina irenga 48%, bikoreshwa mu guhingura no gutera umuriro bauxite canke ibindi bikoresho bishasha bifise alumina nyinshi. Zigaragaza ubushuhe bwinshi n'ubushobozi bwo guhangana n'umuriro burenze degre 1770 . Kubera ko zishobora guhangana n’ivyuma vy’amabuye y’agaciro, zikoreshwa mu gutegura amafuru akoreshwa n’umuyagankuba, amafuru yo gufukura ibirahuri be n’amafuru azunguruka amasimenti.
Amatafari y’alumina [1] ni ibikoresho vy’agaciro bishobora guhangana n’umuriro bikozwe ahanini mu bwoko bwa bauxite budasanzwe, corundum fused, na mullite fused. Aya matafari atanga inyungu nk’ugukwegakwega kw’ubushuhe buke cane-, guhangana n’ugusenyuka gukomeye, n’uguhagarara neza cane kw’ubushuhe.
Ibereye ku bikoresho vy’umuriro binini n’ivy’ubunini buringaniye-, bigereranya intambwe nziza mu guhingura mu gihugu ibikoresho vy’agaciro kanini, vy’agaciro kanini -vyari vyarashizwe hanze mbere ku bikoresho vy’umuriro bishasha vy’igihugu canje; iki gikoresho cashizwe muri "Programme ya Spark" y'igihugu.