Ngwakọta Alumina Zirconia, Az-25, Az-40

zirconia aluminom
Zirconia - corundum
ZA

Nkọwa dị mkpirikpi

Fused Alumina-Zirconia na-emepụta n'ime ọkụ ọkụ ọkụ eletrik dị elu site na ijikọta zirconium quartz ájá na alumina. Ejiri usoro siri ike na nke siri ike mara ya, ịdị elu dị elu, nkwụsi ike nke okpomọkụ dị mma. Ọ dabara maka imepụta nnukwu wiil ndị na-egweri ihe maka ndozi nchara na mgbanaka ụlọ, ngwaọrụ mkpuchi na mgbawa okwute, wdg.

A na-ejikwa ya dị ka ihe mgbakwunye na refractories na-aga n'ihu. N'ihi ịdị elu ya dị elu, a na-eji ya nye ike Mechanical na refractories ndị a.

Kpọtụrụ ugbu a

Nkọwapụta

Bbrand Nkọwa	AZ-25 Index	AZ-25 Uru a na-ahụkarị	AZ-40 Index	AZ-40 Uru a na-ahụkarị
ZrO₂	23% -27%	24%	38% -42%	39%
Al₂O₃	72% nkeji	74%	56%-60%	59%
SiO₂	0.8% kacha	0.5%	0.60% kacha	0.4%
Fe₂O₃	0.3% kacha	0.2%	0.3% kacha	0.15%
TiO₂	0.8% kacha	0.7%	0.50% kacha	0.5%
CaO	0.15% kacha	0.14%	0.15% kacha	0.12%
Ezi njupụta (g/cm³)	4.2 nkeji	4.23	4.6 nkeji	4.65
Agba	Agba ntụ ma ọ bụ ọhụrụ isi awọ		Agba ntụ ma ọ bụ ọhụrụ isi awọ

Usoro Mmepụta na Ngwa

Fused Alumina - Zirconia na-emepụta n'ime ọkụ ọkụ eletrik dị elu site na ijikọta ájá quartz zirconium na alumina. Ejiri usoro siri ike na nke siri ike mara ya, ịdị elu dị elu, nkwụsi ike nke okpomọkụ dị mma. Ọ dabara maka imepụta nnukwu wiil ndị na-egweri ihe maka ndozi nchara na mgbanaka ụlọ, ngwaọrụ mkpuchi na mgbawa okwute, wdg.

A na-ejikwa ya dị ka ihe mgbakwunye na refractories na-aga n'ihu. N'ihi ịdị elu ya dị elu, a na-eji ya nye ike Mechanical na refractories ndị a.

Yttria-Tetragonal Zirconia Polycrystals (Y-TZP) na Alumina (Al2O3) adọtala mmasị dị ukwuu maka teknụzụ akụrụngwa etinyere n'ihi njiri mara mma ha, dị ka ike siri ike, mgbaji siri ike, na ike dị elu na isi ike, njirimara ndị a emeela ka ha nwee ike. ihe na-adọrọ adọrọ maka ngwa dị iche iche nke na-ekpuchi usoro biomedical ebe ọ na-ejikarị eme ihe na ngwa eze dị ka ihe ntinye ihe nkedo prosthetic, àkwà mmiri, mgbọrọgwụ mgbọrọgwụ, na okpueze seramiiki. E wezụga nke ahụ, a na-ejikwa ha na ngwa injinịa dị iche iche gụnyere ihe mmetụta oxygen, mkpuchi ihe mgbochi ọkụ, ngwaọrụ ịkpụ, njikọ eriri anya, na mkpụrụ ndụ mmanụ oxide siri ike. Ọ dị mma ịmara na mmụba nke akụrụngwa akụrụngwa nke Y-TZP bụ n'ihi oke ọka ya na tetragonal na mgbanwe monoclinic. Mgbanwe nke oge a na-esonyere ya na mmụba olu nke ihe dịka 3-5% nke na-ebute na-egbochi mgbasa mgbasa ma si otú a na-eme ka ihe siri ike dịkwuo elu. Otú ọ dị, ọ dị mkpa ịghọta na mgbanwe a nwekwara ike ime na mberede n'okpuru ọnọdụ ụfọdụ. Ọ bụrụ na ekpughere zirconia na okpomọkụ dị ala na gburugburu iru mmiri dị n'etiti 100 ℃ na 300 ℃, nke nwere ike ibute mmebi nke zirconia, na-ebute roughening na microcracking. A maara ihe omume a dị ka hydrothermal ịka nká ma ọ bụ Low-Temperature Deradation (LTD) ma chọpụta na ọ bụ ihe na-enye aka na mbelata arụmọrụ nke ihe zirconia na ngwa orthopedic.

Ndị na-eme nchọpụta emepụtala ọtụtụ ihe mejupụtara nke alumina na-etinye n'ime usoro zirconia. Ebumnuche nke njikọ a bụ ịkwalite nguzogide nke LTD na ijikwa njirimara pụrụ iche nke ceramics ndị a iji meziwanye akụrụngwa nke tetragonal zirconia matrix N'aka nke ọzọ, ọnụnọ nke alumina na matrix na-arụ ọrụ dị mkpa n'ịmepụta usoro siri ike nke na-enyere aka igbochi irighiri ihe zirconia. N'oge usoro jụrụ oyi site na ikpo ọkụ na-ekpo ọkụ, mkpụrụ osisi tetragonal zirconia nwere ike ịme mgbanwe nke oge site na tetragonal na-aga n'ihu na monoclinic. N'okwu a, alumina na-eje ozi iji nọgide na-enwe mkpụrụ osisi zirconia na steeti metastable, na-egbochi mgbanwe zuru oke na usoro monoclinic. Nke a na-echekwa akụkụ tetragonal na-enye aka na mmụba a hụrụ na ike nke ihe seramiiki