Mumakore achangopfuura, sezvo indasitiri yezvesimbi yakapararira kubva pamidziyo yekudyara yemazuva ano nezvinhu zvekuvaka kusvika kumidziyo yezvesimbi inoshanda zvakanaka uye zvesimbi zvinoshanda, kusarudzwa nekugadzirisa zvinhu zvehupfu kwave kwakakosha pakuvandudza maindasitiri. Seimwe yezvinhu zvinonyanya kushandiswa zvakanyanya muindasitiri yezvesimbi yemazuva ano,upfu hwealumina (Al₂O₃) iri kupinda mugadziriro yekugadzira zviumbwa zveceramic zvine kukosha kwakanyanya zvine kuchena kwakanyanya, saizi yezvidimbu zvakapfava, uye hunhu hwakagadzikana hwechikamu chekristaro, zvichipa rutsigiro rwakakosha kune hunhu hwemakanika, magetsi, uye hunhu hwekudzivirira ngura hwezvigadzirwa zveceramic.
Ⅰ. Hunhu uye Sisitimu yekupatsanura yeAlumina Powder
Upfu hweAlumina hunowanzo kurongwa zvichienderana nekuchena, chimiro chekristaro (α-phase kana γ-phase), kugoverwa kwehukuru hwezvimedu, sphericity, uye hunhu hwesintering. Upfu hweAlumina hunoshandiswa muzvimedu zvechinyakare hunonyanya kutarisa kuchena kwakajairika uye hukuru hwezvimedu zvakakura, nepo hupfu hunoshandiswa muzvimedu zvekuvaka uye zvemagetsi zvinowanzova hwakachena zvakanyanya, hwakatsetseka zvakanyanya kana kuti husina micron, uye kazhinji hunoshandisa α-alumina crystal phase kuve nechokwadi chekugadzikana kwezvimedu zvekristaro uye simba remuviri weceramic panguva yesintering yekupisa kwakanyanya.
Kugoverwa kwehukuru hwezvikamu kunoonekwa seimwe yenzira huru dzinoona mashandiro eceramic. Hukuru hwezvikamu hwakanyanya kuomarara hunoita kuti muviri weceramic usakwane, nepo hukuru hwezvikamu zvakatetepa hunogona kukonzera kukura kwezviyo zvisina kuenzana kana zvikanganiso zvemaburi panguva yekupisa. Mumunda we electronic ceramics uye zvivakwa zvepamusorozviumbwa zvedongo, kudzora saizi yezvikamu zveD50 neD90 kwakasimba, pamwe nekupararira kwehukuru hwezvikamu zvakamanikana, zvave chinhu chisingadzivisiki mukukura kwemaindasitiri.
Ⅱ. Mashandisirwo Akawedzerwa muZvivakwa zveCeramics
Upfu hweAlumina ndiyo ceramic yakagadzirwa zvakanyanya kukura mumunda we structural ceramics, ine hunhu hwakadai sekusimba kwakanyanya, kuomarara kwakanyanya, kuramba kupfeka, kuramba ngura, uye kuramba kupisa kwakanyanya. Mashandisirwo akajairika anosanganisira mabheyaringi, ma nozzles, ma guide rollers, mechanical seals, ma valve bodies, ma liners anodzivirira kupfeka, uye maturusi ekucheka. Nekuwedzera kwekudiwa kwezvinhu zvisingakuvadzi kupfeka mumaindasitiri ekugadzira nemidziyo, musika we alumina structural ceramics uri kuramba uchikura, kunyanya mumigodhi yesimbi, indasitiri yemakemikari emarasha, uye machinery chaiyo, uko kutsiva kwemhedzisiro yezviumbwa zvesimbi zvealuminainokosha.
Parizvino, kuchena kwakanyanya uye huwandu hwakawanda ndizvo zviratidzo zvikuru zvekutarisa indasitiri. Mukupisa kwakanyanya, kuchena kweupfu kwakakwira, kukura kwegorosi rekristaro kwakafanana, uye simba rechigadzirwa uye kusimba kwekupwanyika kunowedzera, nokudaro zvichivandudza hupenyu hwese hwekupfeka uye kugadzikana. Panguva imwecheteyo, kushandiswa kwehupfu hwespherical alumina uye hupfu hwesubmicron mumunda weceramics dzekuvaka kuri kuwedzera, nekuda kwekugona kwavo kuyerera zvakanaka uye kugadzikana kwehupfu.
Ⅲ. Kukosha kweTekinoroji muMagetsi eElektroniki neEmagetsi
Zvekushandisa zvemagetsi zveceramic ndeimwe yenzvimbo dziri pasi pemvura dzine mukana mukuru wekuwedzera upfu hwealumina. Zvekushandisa zveAlumina zvine hunhu hwakanaka hwekudzivirira kupisa uye dielectric, zvichiita kuti zvikodzere kushandiswa muzvikamu zvekubatanidza zvecircuit packaging, high-frequency insulators, heat dissipation substrates, uye power insulation components. Kukurumidza kukura kwemagetsi emagetsi uye high-frequency communication kwakaita kuti pave nekugadziriswa kwe dielectric loss uye thermal conductivity yezvinhu zveceramic substrate. Zvekushandisa zvealuminium ceramic zvealuminium zvave chinhu chakakosha mumagetsi emagetsi uye semiconductor fields.
Munyaya ye LED heat dissipation substrates, ceramic substrates dzakagadzirwa ne alumina powder dzine thermal conductivity yakanaka uye electrical insulation properties, zvichipa rutsigiro rwakavimbika rwe high-power LED packagings. Nekugadzirwa kukuru kwemotokari itsva dzemagetsi, macharging piles, uye midziyo yekuchengetedza simba, kudiwa kwezvinhu zve ceramic substrate zvemagetsi kwapinda mukukura, zvichiunza mikana yakagadzikana uye yenguva refu yemusika ye alumina powder.
Ⅳ. Mabhenefiti echinyakare muRefractory uye Catalytic Ceramics
Zvinhu zvechinyakare zvinoramba zvichiri nzvimbo yakakosha yekushandisa pakugadzira upfu hwealumina. Nekuda kwekunyunguduka kwahwo kwakanyanya uye kuramba kwakasimba kwemakemikari, upfu hwealumina hunogona kushandiswa kugadzira machira emoto anodziya zvakanyanya, zvimiti zvinopisa, zvidhinha zvemuromo, uye zvikamu zvesimbi zvakanyungudutswa. Maindasitiri anodziya zvakanyanya akadai sesimbi, simbi dzisina ferrous, uye kugadzira wafer yedunhu rakabatanidzwa achiri kushandiswa zvikuru nealumina refractory ceramics.
Imwe nzvimbo yakakura ndeye catalytic carrier ceramics, dzakadai se honeycomb ceramics uye alumina catalytic carriers. Nzvimbo chaiyo yepamusoro uye chimiro chine maburi emvura.upfu hwealuminainopa hwaro hwakanaka hwekunamatira kune zvikamu zvinoshanda zve catalytic, uye inoshandiswa zvakanyanya mukurapa utsi hwemotokari, kupwanya macatalytic emuchina wekuchenesa, uye masisitimu ekuchenesa nharaunda.
Ⅴ. Kuvandudzwa kweNzira dzeMaitiro uye Nzira dzeTekinoroji yeMaindasitiri
Nekuvandudzwa kwetekinoroji muindasitiri yeceramic, vagadziri ve alumina powder vari kuchinja kubva pakushandisa nzira dzechinyakare dzekuchenesa makemikari kusvika pakupfapfaidza, kudzvanya kwe isostatic, thermal plasma spheroidization, uye matekinoroji ekugadzirisa pamusoro. Kune rumwe rutivi, saizi dzezvimedu zvakapfava uye hupfu hwakanyanya kuchena zvinoramba zvichivandudza mashandiro e sintering; kune rumwe rutivi, matekinoroji ekugadzirisa anovandudza kuenderana kwehupfu ne binders uye solvent systems, zvichiita kuti rheological control ye ceramic slurry uye injection molding iwedzere. Zvakakosha kuziva kuti mumakore achangopfuura, kudiwa kwe mechanical processing muindasitiri yeceramics kwakawedzera panguva imwe chete. Kuvandudzika kwekunyatso gadzira ceramic surface kwaita kuti pave ne powder particle morphology yakajairika, uye spherical alumina powder yapinda muminda ye optical polishing uye wafer fabrication, zvichiunza purofiti itsva kumakambani e powder.
Ⅵ. Mafambiro Eindasitiri: Kuvandudzwa Kwezvinhu Kunosimudzira Shanduko Mumamiriro Emusika
Zvichitungamirirwa nemafambiro ezvinhu zve "kureruka, kushanda kwepamusoro, uye electronization," zviumbwa zveceramics zvinoshanda zvakanyanya zviri kuwana chinzvimbo chepamusoro chehurongwa. Nzira dzehunyanzvi dzeindasitiri dzemotokari, dzezvekurapa, dzesimba, uye dzesemiconductor dzinosarudza nzira yekushandiswa kweupfu hwealumina mune ramangwana.
Mafambiro aripo pari zvino muindasitiri anoratidza zvinhu zvitatu zvikuru:
① Midziyo inodziya zvakanyanya uye indasitiri itsva yesimba iri kuwedzera kudiwa kwezviumbwa zveceramics zvisingaparare uye zvinodzivirira kupisa;
② Zvigadzirwa zvemagetsi zveceramic zviri kuwedzera kudiwa kwehupfu hwakachena zvakanyanya;
③ Kugadziriswa kwehukuru hwezvikamu, kuvandudzwa kwekuchena, uye kugadzikana kwechikamu chekristaro zviri kuva chinhu chikuru mumakwikwi ehupfu.
Pasi roseindasitiri yezvedongocheni parizvino iri mumakwikwi akawanda. Makambani eupfu hwepamusoro ane mukana wehunyanzvi muminda yemagetsi uye semiconductor, nepo upfu hwepakati huchiri kunyanya kunanga zviumbwa zveceramic nezvinhu zvinoramba. Zvichikonzerwa nekudiwa kuri kuderera, musika weupfu hwepakati kusvika hwepamusoro unotarisirwa kuramba uchikura.
Ⅶ. Mhedziso
Mafambiro eindasitiri yeceramic kubva pakudiwa kwechinyakare kuenda kukugadzirwa kwepamusoro akajeka zvikuru. Nekuwedzera kuri kuramba kuchiita tekinoroji yezvinhu, maitiro ekugadzirira, uye mamiriro ekushandisa, alumina powder ichaita basa rakakosha mune ramangwana reindasitiri yeceramic. Ingave structural ceramics, electronic ceramics, thermal management ceramics, kana catalytic ceramics, alumina powder materials ari kuva simba guru rekusimudzira cheni yese yeindasitiri yeceramic.