I-alumina ceramics, i-silicon carbide ceramics kanye ne-zirconia ceramics

I-alumina ceramic ilula ezintweni ezibonakalayo, ivuthiwe kubuchwepheshe bokukhiqiza, inezindleko eziphansi kakhulu, inhle kakhulu ngobulukhuni kanye nokumelana nokugqoka. Isetshenziswa kakhulu kumapayipi e-ceramic angagugi, ama-valve angagugi njengezinto zokwenziwa kolwelwesi, futhi ingashiswa ngezikhonkwane noma inamathiselwe odongeni lwangaphakathi lwemishini yokuhlukanisa efana nogayo oluqondile lwezimboni, i-powder concentrator kanye nesishingishane, esingahlinzeka nge-10. izikhathi ukugqoka ukumelana of surface imishini. Ezintweni ezingagugi, isabelo semakethe sezinto ze-alumina singafinyelela cishe ku-60% ~ 70%.

Isici esibaluleke kakhulu se-SiC ceramic material ukumelana nokushaqeka okuhle kwe-thermal. Ngaphansi kwezimo zokushisa eziphakeme, impahla inezinto ezizinzile zemishini futhi ingasetshenziswa ngokuzinzile ku-1800 ℃ isikhathi eside. Isici sesibili ukuthi impahla ye-silicon carbide ingasetshenziswa ukwenza imikhiqizo emikhulu ene-deformation encane. Isetshenziswa kakhulu embonini ye-preheater elengayo yemboni kasimende, i-ceramic nozzle ye-ceramic ekwazi ukumelana nokushisa okuphezulu, ipayipi lamalahle eliwayo kanye nepayipi lokushisa eliphezulu lemboni yamandla ashisayo. Isibonelo, ama-nozzles of burners ezitshalweni zamandla ashisayo ngokuyisisekelo zenziwe nge-silicon carbide, futhi imikhiqizo inezici zokumelana nokushisa okuphezulu nokumelana nokugqoka. Izindlela ze-sintering ze-silicon carbide ceramics zihlanganisa ukusabela kwe-sintering kanye ne-pressless sintering. Izindleko ze-reaction sintering ziphansi, imikhiqizo ilukhuni uma kuqhathaniswa, futhi ukuminyana kwemikhiqizo ye-vacuum sintering engenangcindezi kuphezulu uma kuqhathaniswa. Ukuqina kwemikhiqizo kufana nokwemikhiqizo ye-alumina, kodwa intengo yayo iphakeme kakhulu.

Ukumelana nokugoba kwezinto zobumba ze-zirconia kungcono kunokwezinto eziphukayo. Intengo yamanje yemakethe ye-zirconia powder ibiza kakhulu, esetshenziswa kakhulu ezindaweni eziphezulu, njengezinto zamazinyo, ithambo lokufakelwa, amadivaysi ezokwelapha, njll.