Umehluko phakathi kwe-alumina ceramics kanye ne-ceramics esobala

Umqondo ohlukile

I-alumina ceramiciwuhlobo lwempahla yobumba ene-alumina (AI203) njengomzimba oyinhloko.

I-ceramics esobala itholakala ngokusebenzisa izinto zokusetshenziswa ze-ceramic zokuhlanzeka okuphezulu kanye nokususa ama-pores ngezindlela zobuchwepheshe.

Ukubunjwa nokuhlukaniswa kwezigaba kwehlukene

I-Alumina Ceramicszihlukaniswe ngohlobo lokuhlanzeka okuphezulu kanye nohlobo olujwayelekile lwesibili.

Izitsha zobumba ze-alumina ezihlanzekile kakhulu ziyizinto zobumba ezinokuqukethwe kwe-AI203 ngaphezu kuka-99.9%.Ngenxa yezinga lokushisa elishisayo elifinyelela ku-1650-1990.℃kanye ne-wavelength yokudlulisela engu-1~6um, ngokuvamile yenziwa ingilazi encibilikisiwe ukuze ithathe isizukulwane se-platinum crucible; Sebenzisa ukudlulisa ukukhanya kwayo kanye nokumelana nokugqwala kwensimbi ye-alkali njengeshubhu lesibani se-sodium; Ingasetshenziswa njengebhodi lesifunda elididiyelwe kanye nezinto ezisetshenziswayo zokufaka imvamisa ephezulu embonini ye-elekthronikhi.

Okuvamilei-alumina ceramicszihlukaniswe nge-porcelain engama-99, i-porcelain engama-95, i-porcelain engama-90, i-porcelain engama-85 nezinye izinhlobo ngokuya ngokuqukethwe kwe-A1203, futhi kwesinye isikhathi okuqukethwe kwe-A1203 kubuye kubekwe njengochungechunge olujwayelekile lwe-alumina ceramics. Impahla ye-99 ye-alumina ceramic isetshenziselwa ukwenza ukushisa okuphezulu kwe-crucible, ipayipi lesithando somlilo esiphikisayo kanye nezinto ezikhethekile ezingagugi, njengama-ceramic bearings, seals se-ceramic nama-valve amanzi; I-95 alumina porcelain isetshenziswa ikakhulukazi njengokumelana nokugqwala kanye nezingxenye zokumelana nokugqoka; I-porcelain engu-85 ivame ukuxutshwa ne-talc ukuze kuthuthukiswe izakhiwo zikagesi namandla emishini, futhi ingavalwa nge-molybdenum, i-niobium, i-tantalum nezinye izinsimbi, kanti ezinye zisetshenziswa njengamadivaysi kagesi e-vacuum.

I-ceramics esobala ingahlukaniswa ngamaceramics e-aluminium oxide esobala, i-yttrium oxide i-ceramics esobala, i-magnesium oxide transparent ceramics, i-yttrium aluminium garnet transparent Ceramics, i-aluminium magnesium acid i-ceramics esobala, izinto zobumba ze-ferroelectric, i-aluminium nitride transparent ceramics, i-aluminium spinparent aluminium transparent ceramics izitsha zobumba obala njalo njalo.

 

Ukusebenza okuhlukile

I-alumina ceramicizakhiwo:

1. Ubulukhuni obuphezulu obunqunywe yi-Shanghai Institute of Silicate ye-Chinese Academy of Sciences, ubulukhuni bayo be-Rockwell buyi-HRA80-90, ubulukhuni bungokwesibili ngemva kwedayimane, budlula kude ukumelana nokugqokwa kwensimbi engagugi nensimbi engagqwali.

2. Ukumelana nokugqokwa okuhle kakhulu Kukalwa yi-Powder Metallurgy Institute yaseCentral South University, ukumelana kwayo nokugqoka kulingana nezikhathi ezingama-266 zensimbi ye-manganese kanye nezikhathi eziyi-171.5 zensimbi ephezulu ye-chromium. Ngokocwaningo lwethu lokulandela umkhondo wamakhasimende iminyaka engaphezu kweyishumi, ngaphansi kwezimo ezifanayo zokusebenza, impilo yesevisi yemishini inganwetshwa okungenani izikhathi eziyishumi.

3. Isisindo esilula Ubukhulu bayo buyi-3.5g / cm3, okuyingxenye yensimbi kuphela, enganciphisa kakhulu umthwalo wemishini.

 

Izici ze-ceramic esobala:

I-ceramics esobala njengegatsha le-ceramics ethuthukisiwe, ngaphezu kokuthola ukumelana nokushisa okuphezulu kwe-ceramic, ukumelana nokugqwala, amandla aphezulu, ukuqina okuphezulu, ukuzinza kwamakhemikhali, i-coefficient ephansi yokwandisa ngaphezu kwalokho, ukuhanjiswa kokukhanya okuyingqayizivele kwenza kwandise izinhlelo zokusebenza eziningi.

 

Uhlelo lokusebenza oluhlukile

I-Alumina Ceramicsasetshenziswa kabanzi emishinini, i-fiber optical, amathuluzi okusika, ezokwelapha, ukudla, amakhemikhali, i-aerospace nezinye izimboni.

I-ceramics esobala isetshenziswa kakhulu ezintweni zokukhanyisa, izinto ze-laser, izinto zefasitela le-infrared, izinto zobumba ezicwayizayo, i-electro-optical ceramics, izinto ezingangenwa izinhlamvu.