Yakasanganiswa Alumina Zirconia,Az-25,Az-40

zirconia alumina
Zirconia-corundum
ZA

Tsanangudzo Pfupi

Fused Alumina-Zirconia inogadzirwa mune yakakwira tembiricha yemagetsi arc fusing zirconium quartz jecha uye alumina. Iyo inoratidzirwa nekuoma uye dense chimiro, kusimba kwepamusoro, kugadzikana kwakanaka kwekushisa. Yakakodzera kugadzira mavhiri makuru ekukuya esimbi yekumisikidza uye snagging yekuwana, maturusi akavharidzirwa uye kuputika kwematombo, nezvimwe.

Iyo inoshandiswawo sekuwedzera muKuenderera mberi kukanda refractories. Nekuda kwekuoma kwayo kwepamusoro inoshandiswa kupa Mechanical simba mune idzi refractories.

BATA ZVINO

Zvinotsanangurwa

BBrand Spec	AZ-25 Index	AZ-25 Typical Value	AZ-40 Index	AZ-40 Typical Value
ZrO₂	23%-27%	24%	38% -42%	39%
Al₂O₃	72% min	74%	56%-60%	59%
SiO₂	0.8%max	0.5%	0.60% max	0.4%
Fe₂O₃	0.3% max	0.2%	0.3% max	0.15%
TiO₂	0.8%max	0.7%	0.50% max	0.5%
CaO	0.15% yakawanda	0.14%	0.15% yakawanda	0.12%
Chokwadi density (g/cm³)	4.2min	4.23	4.6min	4.65
Color	Gray kana Fresh grey		Gray kana Fresh grey

Maitiro Ekugadzira uye Kushandisa

Fused Alumina--Zirconia inogadzirwa mune yakakwira tembiricha yemagetsi arc fusing zirconium quartz jecha uye alumina. Iyo inoratidzirwa nekuoma uye dense chimiro, kusimba kwepamusoro, kugadzikana kwakanaka kwekushisa. Yakakodzera kugadzira mavhiri makuru ekukuya esimbi yekumisikidza uye snagging yekuwana, maturusi akavharidzirwa uye kuputika kwematombo, nezvimwe.

Iyo inoshandiswawo sekuwedzera muKuenderera mberi kukanda refractories. Nekuda kwekuoma kwayo kwepamusoro inoshandiswa kupa Mechanical simba mune idzi refractories.

Yttria-Tetragonal Zirconia Polycrystals (Y-TZP) uye Alumina (Al2O3) yakakwezva kutarisisa kwakakosha kune tekinoroji yekudyara nekuda kwekusanganiswa kwavo kwakanaka kwezvinhu, senge kuomarara kwakanyanya, kuomarara kwekutsemuka, uye kusimba kwepamusoro nekuoma , Aya maitiro akavaita. zvinhu zvinoyevedza zvehupamhi hwemashandisirwo anofukidza iyo biomedical renji kwainowanzo shandiswa mukushandisa mazino senge prosthetic implant abutments, mabhiriji, midzi matanda, uye ceramic korona. Kunze kwezvo, iwo anoshandiswawo muakasiyana einjiniya maapplication anosanganisira okisijeni sensors, thermal barrier coatings, maturusi ekucheka, optical fiber connectors, uye akasimba oxide mafuta maseru. Zvakakosha kucherechedza kuti kuvandudzwa kwemakanika eY-TZP kunokonzerwa nekukura kwayo zviyo zvine tetragonal to monoclinic phase shanduko. Iyi shanduko yechikamu inoperekedzwa nekuwedzera kwevhoriyamu inosvika 3-5% zvichikonzera kuvharidzira kupararira uye nekudaro kunowedzera kuoma kwezvinhu. Nekudaro, zvakakosha kuti tizive kuti shanduko iyi inogonawo kuitika yega mune mamwe mamiriro. Kana zirconia ikaratidzwa kune tembiricha yakaderera munzvimbo ine hunyoro inotangira pakati pe100 ℃ ne300 ℃, izvo zvinogona kutungamira mukuipa kwe zirconia, zvichikonzera roughening uye microcracking. Chiitiko ichi chinozivikanwa se hydrothermal kuchembera kana kuti Low-Temperature Degradation (LTD) uye yakaonekwa sechinhu chinokonzera kuderedzwa kwekushanda kwezvikamu zve zirconia mumishonga yemapfupa.

Vatsvagiri vakagadzira akati wandei macomposites umo alumina inosanganisirwa mune zirconia chimiro. Chinangwa chekubatanidzwa uku ndechekusimudzira kuramba kweLTD uye kukwidziridza hunhu hwakasarudzika hwemakeramiki aya kuvandudza ma mechanics e tetragonal zirconia matrix Kune rimwe divi, kuvepo kwealumina mumatrix kunoita basa rakakosha mukugadzira a. chimiro chakasimba chinobatsira kumanikidza zirconia particles. Munguva yekutonhodza kubva pakupisa, tetragonal zirconia tsanga dzinogona kuita shanduko kubva pachikamu che tetragonal kuenda kuchikamu chemonoclinic. Muchirevo chechinyorwa ichi, alumina inoshanda kuchengetedza zirconia zviyo mu metastable state, kudzivirira shanduko yakakwana kune monoclinic chikamu. Uku kuchengetedzwa kwechikamu che tetragonal kunobatsira pakuonekwa kwekuvandudzwa mukuoma kwezvinhu zveceramic