Seramiki Alumina Na-egbochi Ballistic 99%: Njirimara, Mmepụta, na Ngwa

IheSeramiiki alumina 99% mgbochi-ballisticbụ seramiiki injinia dị elu nke nwere α-alumina (α-Al2O₃) dị ka usoro kristal bụ isi yana ọdịnaya alumina karịrị 98%. Na-enwe ọnọdụ dị mkpa na nchekwa agha nkeonwe na nke ụgbọala n'ihi ike ya dị elu, njupụta dị oke mma, iguzogide iyi dị mma, na oke arụmọrụ dị mma. Usoro nchekwa ya dabere na ike ya dị elu na modulus iji mee ka ihe mgbochi na-abata ghara ịdị nkọ ma gbajie, ebe ọ na-amịkọrọ ma na-agbasa ọtụtụ ike kinetic nke projectile site na usoro mgbawa nke ya. A na-etinye ike fọdụrụnụ site na ihe mejupụtara nkwado (dịka ọmụmaatụ, polyethylene dị oke elu ma ọ bụ ákwà dị n'otu ụzọ). Ihe ndị dị mkpa na anụ ahụ gụnyere njupụta buru ibu nke na-erughị 3.9 g/cm³, ike Mohs nke 9, ike flexural ruo 580 MPa, yana obere nnabata mmiri (<0.006%) na ezigbo nkwụsi ike okpomọkụ.

Usoro mmepụta ihe a na-amalite site na nhọrọ nke ntụ alumina dị ọcha nke ukwuu, nke na-adịkarị na nha submicron (D50 ihe dị ka 0.35 ~ 1.4 μm). Usoro nhazi mbụ gụnyere ịpị nkụ na ịpị isostatic, wee soro ya site na ịpị ikuku ma ọ bụ ịpị ọkụ. Iji merie mmebi dị n'ime seramiiki ma melite nguzogide ọtụtụ-hit, nyocha mbụ na-elekwasị anya na teknụzụ ndị na-eme ka ike sie ike, dị ka itinye ajị silicon carbide ma ọ bụ zirconia iji mepụta seramiiki alumina matrix composite. Ihe ndị a mejupụtara nwere ike igbochi mgbasa mgbawa nke ọma na ọkwa microstructural, na-eme ka ike dịkwuo elu, iguzogide mmetụta, na arụmọrụ ballistic zuru oke.

N'ọrụ bara uru, a na-arụkarị seramiiki alumina 99% ka ọ bụrụ taịlị ndị nwere ọdịdị nkịtị (squares, rectangles, hexagons) ma ọ bụ iberibe pụrụ iche gbagọrọ agbagọ iji chịkọta efere ergonomic ballistic insert. Efere agha siri ike nke e ji ihe a mee agafeela ule ballistic ọkachamara dịka NIJ Standard-0101.06 Level III na IV. Ọmụmụ ihe nnwale egosila na itinye mkpọchi na efere seramiiki nwere ike ime ka iguzogide ha ghara ịbanye n'ime nke ọma. N'ihi arụmọrụ ya pụrụ iche nke na-egbochi mgbọ, obere ibu na ọnụ ahịa asọmpi, seramiiki alumina 99% aghọwo ihe kachasị na ahịa efere seramiiki belịtị na-egbochi mgbọ.