Mee ka ịdịte aka dị elu site na ihe ndị alumina siri ike nke Zirconia
Seramiiki ZTA na-enye akụrụngwa tribological kachasị elu ma e jiri ya tụnyere seramiki alumina mgbe niile, na-eme ka ha bụrụ ezigbo nhọrọ maka ịkpụ ngwaọrụ, bearings, nfuli na mmiri nchịkwa components.
N'okpuru nrụgide, Ihe irighiri zirconia na-agbanwe site na ihe owuwu tetragonal kristal metastable gaa na nke monoclinic, na-emepụta mgbasawanye olu nke na-akpakọ mgbawa na matriks alumina ma na-eme ka ike mgbaji dị nke ọma.
Yiri Nguzogide
Zirconia aluminom siri ike (ZTA) bụ ihe na-adịgide adịgide nke ukwuu. Ọ nwere ike iguzogide mmetụta abrasion ma ọ bụ eyi esemokwu na-enweghị mmebi; na-eme ka ọ bụrụ nhọrọ ihe onwunwe magburu onwe ya maka ịkpụ wiil. Ọzọkwa, ZTA nwere ike iguzogide oke okpomọkụ na-emebighị ma ọ bụ mebie ya.
ZTA na-eguzogide ọgwụ corrosion nke ukwuu, na-eme ka ọ bụrụ nhọrọ kacha mma maka ntinye ọgwụ. Nkwekọrịta dị ndụ ma nwee ike iguzogide kọntaktị mmiri nke anụ ahụ, ZTA na-anya isi ike mgbanwe dị elu – zuru oke maka ngwa nnọchi hip.
Emepụtara ZTA site na ngbanwe nke nrụgide tetragonal zirconia dị mma ka ọ bụrụ ọdịdị monoclinic.. Nke a na-abawanye ike mgbaji site na ịgbasa oghere gburugburu mgbawa. Ya mere, ZTA na-egosi na ọ dị ike ma na-adịgide adịgide karịa alumina maka ngwa eyi.
Nguzogide corrosion
Zirconia aluminom siri ike (ZTA) bụ elu teknuzu seramiiki ihe ọtụtụ tinye n'ọrụ na ụlọ ọrụ maka ike ya, ike, eyi iguzogide na corrosion eguzogide Njirimara. ZTA na-achọta ngwa n'ofe ọtụtụ ngalaba gụnyere ụgbọ ala na ikuku maka akụrụngwa dị ka akụrụngwa injin, gas turbines na n'ibu akụkụ mgbe na-eje ozi dị ka wear components na nfuli, akàrà na ihe ịkpụcha ihe eji eme ihe eji eme ihe. Ịwa ahụ mpaghara ahụike nwekwara ike iji ihe a rụọ ọrụ n'ihi ndakọrịta ya.
Ịdị ogologo n'ime ihe a na-abịa site na usoro ngbanwe nke nrụgide na-akpata, nke zirconia irighiri ihe na alumina matriks na-agbanwe ka ọ bụrụ ihe owuwu monoclinic site na nrụgide na-eme ka mgbanwe sie ike., na-enyere aka nso mgbawa ma na-abawanye ike mgbaji, si otú a na-echebe onwe ya pụọ na mmebi na gburugburu ebe dị iche iche dị ka phosphoric acid, sulfuric acid na mmiri distilled. Nke a na-enye ya ohere iguzogide corrosion.
Ike dị elu
Ijikọta alumina na zirconia na-ebute ike dị ukwuu na mgbaji siri ike ma e jiri ya tụnyere alumina ọkọlọtọ., na-eme ka ZTA bụrụ nhọrọ kacha mma maka ihe ndị etinyere na ntinye mmetụta. Ọzọkwa, ZTA na-anyakwa nnukwu nguzogide corrosion kemịkalụ.
ZTA na-anya isi ike na ike dị elu n'ihi mgbanwe nke tetragonal zirconia particles ka ọ bụrụ kristal monoclinic site na ngbanwe na-akpata nrụgide site na ntinye igwe ma ọ bụ mgbanwe okpomọkụ., na nrụgide na-esote site na nhazi monoclinic zirconia kristal na-echikota matriks alumina, na-enye ya ike dị ukwuu, inogide, na thermal ujo iguzogide.
Seramiiki a pụrụ iche na-etukwa isi ike na-ehulata oke yana ọnụọgụ mgbasawanye ọkụ dị ala, na-eme ka ọ bụrụ ihe zuru oke maka ngwa chọrọ usoro jụrụ oyi. Ọzọkwa, ya iguzogide kemịkalụ corrosive – gụnyere mmiri mmiri nke anụ ahụ – na-eme ka ntinye ọgwụ dị mma maka ntinye n'ime mmadụ n'enweghị ihe ize ndụ nke mmebi n'ime oge na-enye ndị ọrịa ohere ịnụ ụtọ ahụmahụ dị mma n'enweghị nchegbu maka mmebi ịkụnye n'ime oge..
Ike siri ike
ZTA ceramics na-eme ka ike nke alumina dịkwuo mma site na ngbanwe nke nrụgide zirconia ka ọ bụrụ nke mara mma., enweta site na sintering na ọkụ isostatic ịpị (HIP). Dabere na ole zirconia dị na matriks ya, ZTA nwere ike ịnwe ihe siri ike dị ala ma ọ bụ dị elu.
Clausen gosipụtara na 1976 na alumina matrices nwere zirconia na-akwụghị ọtọ nwere ike sie ike iji kwalite akụrụngwa site na ịgụnye kristal zirconia na-akwụghị ọtọ dị ka ihe na-ebuli elu metastable., dị ka ndị a kpụrụ site na kristal zirconia na-akwụghị ọtọ, iji melite n'ibu Njirimara. O gosiputara nke a site na iji mgbape mgbasa; Mgbe mgbawa na-aga n'ihu site na ihe ahụ ma mebie mpaghara ya n'ihu n'ọnụ ha, ha nwere ike gbanwee gaa na usoro monoclinic ma gbanwee na ya ngwa ngwa karịa ka ọ ga-eme ma ọ bụghị ya..
Usoro a na-eme ka ike sie ike na-abawanye ike mgbanwe na mgbaji siri ike nke alumina ka ọ na-abawanye ike n'otu oge., ịmepụta ihe na-enweghị ihe mgbagwoju anya na-enweghị atụ kwesịrị ekwesị maka ngwa na-achọ ike siri ike, isi ike, nkwụsị mgbawa na chọrọ jụrụ dị ka ụlọ ọrụ cutters, egwe ọka eyi akụkụ ma ọ bụ jụrụ oyi components.