Crystal chimiro cheyttrium oxide
Yttrium oxide (Y2O3) muchenarare earth oxideisinganyungudika mumvura uye alkali uye inonyungudika muasidhi. Iyo yakajairika C-mhando isingawanzo pasi sesquioxide ine body-centered cubic chimiro.
Crystal parameter tafura yeY2O3
Crystal Structure Digiramu ye Y2O3
Zvenyama nemakemikari zvimiro zveyttrium oxide
(1) huremu hwemori i225.82g/mol uye density i5.01g/cm3;
(2) Melting point 2410 ℃, kubikira poindi 4300 ℃, kugadzikana kwakanaka kwekupisa;
(3) Kugadzikana kwakanaka kwemuviri uye kemikari uye kusimba kwakanaka kwekuora;
(4) Thermal conductivity yakakwirira, iyo inogona kusvika 27 W / (MK) pa 300K, iyo inenge kaviri kupisa kwekushisa kweyttrium aluminium garnet (Y3Al5O12), iyo inobatsira kwazvo pakushandiswa kwayo senge laser inoshanda svikiro;
(5) The optical transparency range yakafara (0.29 ~ 8μm), uye theoretical transmittance munharaunda inooneka inogona kusvika kupfuura 80%;
(6) Simba rephonon rakaderera, uye iyo yakanyanya simba yepamusoro yeRaman spectrum iri pa377cm.-1, iyo inobatsira kuderedza mukana wekushandura kusina-radiative uye kuvandudza up-conversion luminous performance;
(7) Pasi pe2200 ℃, Y2O3is a cubic phase isina birefringence. Iyo refractive index ndeye 1.89 pawavelength ye1050nm. Kushandura kuita hexagonal chikamu pamusoro pe2200 ℃;
(8) Mhepo yesimba yeY2O3yakapamhama zvikuru, inosvika 5.5eV, uye chiyero chesimba che doped trivalent isingawanzo mwenje pasi pevhu chiri pakati pevalence bhendi uye conduction bhendi reY.2O3uye pamusoro peFermi simba level, nokudaro vachigadzira discrete luminescent nzvimbo.
(9)Y2O3, sechinhu chematrix, chinogona kugarisa huwandu hwakanyanya hwemaioni epasi asingawanzo uye kutsiva Y.3+ions pasina kukonzera shanduko yemaitiro.
Main kushandiswa kweyttrium oxide
Yttrium oxide, sechinhu chinoshanda chekuwedzera, chinoshandiswa zvakanyanya muminda yeatomu simba, aerospace, fluorescence, zvemagetsi, high-tech ceramics uye zvichingodaro nekuda kwehunhu hwayo hwakanaka hwemuviri senge yakakwira dielectric inomira, yakanaka kupisa kupisa uye kusimba kwakasimba kwegora.
Mufananidzo kunobva: Network
1,Se phosphor matrix zvinhu, inoshandiswa muminda yekuratidzira, kuvheneka uye kumaka;
2, Senge laser yepakati zvinhu, yakajeka ceramics ine yakakwira optical performance inogona kugadzirwa, inogona kushandiswa senge laser inoshanda svikiro kuona kamuri tembiricha laser kubuda;
3,Sechinhu chinosimudzira luminescent matrix material, chinoshandiswa mukuona infrared, fluorescence labeling nemamwe minda;
4, Yakagadzirwa kuita maceramics akajeka, anogona kushandiswa kuoneka uye infrared lenzi, high-pressure gas discharge rambi machubhu, ceramic scintillators, high-temperature yevira yekuona mahwindo, nezvimwe.
5, Inogona kushandiswa semudziyo wekuita, yakakwira tembiricha inodzivirira zvinhu, refractory zvinhu, nezvimwe.
6, Sezvinhu mbishi kana zvekuwedzera, zvakare anoshandiswa zvakanyanya mukupisa-tembiricha superconducting zvinhu, laser crystal materials, structural ceramics, catalytic materials, dielectric ceramics, high-performance alloys nezvimwe minda.
Kugadzirira nzira yeyttrium oxideupfu
Liquid phase precipitation method inowanzo shandiswa kugadzirira zvisingawanzo pasi oxides, izvo zvinonyanya kusanganisira oxalate precipitation method, ammonium bicarbonate precipitation method, urea hydrolysis method uye ammonia precipitation method. Pamusoro pezvo, pfapfaidzo granulation zvakare inzira yekugadzirira iyo yanga ichinetsekana zvakanyanya parizvino. Nzira yekunaya kwemunyu
1. oxalate precipitation method
Therare earth oxideyakagadzirirwa neoxalate precipitation nzira ine zvakanakira yeakakwira crystallization degree, yakanaka crystal fomu, kukurumidza kusefa kumhanya, kuderera kwehutsvina uye kushanda kuri nyore, inova nzira yakajairika yekugadzirira kuchena kwakanyanya.rare earth oxidemukugadzirwa kwemaindasitiri.
Ammonium bicarbonate kunaya nzira
2. Ammonium bicarbonate kunaya nzira
Ammonium bicarbonate inzvimbo yakachipa. Kare, vanhu vaiwanzoshandisa nzira yekunaya kweammonium bicarbonate kugadzirira musanganiswa usingawanzoitiki pasi carbonate kubva pakunyungudutsa kwemvura isingawanzo matombo evhu. Parizvino, zvisingawanzo pasi oxides zvinogadzirwa neammonium bicarbonate kunaya nzira muindasitiri. Kazhinji, ammonium bicarbonate precipitation nzira ndeyekuwedzera ammonium bicarbonate yakasimba kana mhinduro mune isingawanzo pasi chloride solution pane imwe tembiricha, Mushure mekuchembera, kugeza, kuomeswa nekupisa, iyo oxide inowanikwa. Nekudaro, nekuda kwehuwandu hukuru hwemabhuru anogadzirwa panguva yekunaya kweammonium bicarbonate uye isina kugadzikana pH kukosha panguva yekunaya kwemvura, iyo nucleation rate inokurumidza kana inononoka, iyo isingakodzeri kukura kwekristaro. Kuti uwane iyo oxide ine yakanakira particle size uye morphology, maitiro ekuita anofanirwa kudzorwa zvakanyanya.
3. Kunaya kweUrea
Urea precipitation nzira inoshandiswa zvakanyanya mukugadzirwa kwerare earth oxide, iyo isiri yakachipa chete uye iri nyore kushanda, asi zvakare ine mukana wekuwana kudzora kwakaringana kwe precursor nucleation uye kukura kwechikamu, saka urea precipitation nzira yakwezva vanhu vazhinji uye vazhinji. nyasha uye yakakwezva kutarisisa kukuru uye kutsvagisa kubva kunyanzvi dzakawanda panguva ino.
4. Pfaya granulation
Kupfapfaidza granulation tekinoroji ine mabhenefiti epamusoro otomatiki, kugadzirwa kwepamusoro uye yemhando yepamusoro yehupfu yakasvibira, saka pfapfaidzo granulation yave inowanzoshandiswa poda granulation nzira.
Mumakore achangopfuura, kushandiswa kwerare pasimuminda yechinyakare haina kuchinja zvakanyanya, asi kushandiswa kwayo muzvinhu zvitsva kwakawedzera zviri pachena. Sechinhu chitsva,nano Y2O3ine nzvimbo yakakura yekushandisa. Mazuva ano, kune nzira dzakawanda dzekugadzirira nano Y2O3zvinhu, zvinogona kupatsanurwa muzvikamu zvitatu: fluid chikamu nzira, gasi chikamu nzira uye yakasimba chikamu nzira, pakati iyo mvura chikamu nzira ndiyo inonyanya kushandiswa.They akakamurwa pfapfaidzo pyrolysis, hydrothermal synthesis, microemulsion, sol-gel, combustion. synthesis uye kunaya kwemvura. Nekudaro, iyo spheroidizedyttrium oxide nanoparticlesichave nepamusoro-soro nzvimbo, simba repamusoro, mvura iri nani uye kupararira, iyo inofanirwa kutarisa.
Nguva yekutumira: Aug-16-2021