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I-Silicon nitride ceramic eneempawu ezibalaseleyo zomzimba, iikhemikhali, kunye noomatshini

Izinto eziphathekayo

Iintlobo zeemveliso
iveliso ezifakiwe
0102030405
I-Silicon nitride ceramic eneempawu ezibalaseleyo zomzimba, iikhemikhali, kunye noomatshini

I-Silicon nitride ceramic eneempawu ezibalaseleyo zomzimba, iikhemikhali, kunye noomatshini

I-Silicon Nitride Ceramic yimathiriyeli ye-ceramic eyenziwe ngesilicon nitride (Si N₄) eneempawu ezibalaseleyo zomzimba, iikhemikhali, kunye nezoomatshini kwaye ke ngoko isetyenziswa ngokubanzi kwiinkalo ezahlukeneyo.

Iimpawu eziphambili: Ubunzima bokuKhanya, ukuNganyangeki okuPhezulu kunye noKuxhathisa ubushushu obuphezulu.

Usetyenziso oluPhambili: Amacandelo aNganyangekiyo ngobushushu, ukuNxitywa kunye nokuMhlwa.

Isilicon nitride (Si3N4) yinto enebhondi ephezulu ye-covalent kunye nesixhobo sokwakheka kobushushu obuphezulu kunye nokusebenza okugqwesileyo kumandla obushushu obuphezulu, ukumelana ne-oxidation kunye nokumelana neekhemikhali.

    Qhagamshelana nathi
    INkcazelo yeNkcazelo yeMathiriyeli
    Itheyibhile yeeMpahla zeMathiriyeli

    I-Silicon nitride ceramics ineenzuzo ezibalaseleyo: ukuxinana okuphantsi, ukumelana nobushushu obuphezulu, ukuzithambisa, ukumelana nokugqwala. Sixineneyo3N4I-ceramics iphinda ibonise ukuqina okuphezulu kwe-fracture, iipropati eziphezulu ze-modulus kunye ne-self-lubricity, enokuthi ikwazi ukuxhathisa ngokugqwesileyo kwiintlobo ezahlukeneyo zokunxiba kunye nokumelana neendawo ezinobungozi ezinokubangela ukuba ezinye izinto ze-ceramic ziqhekeke, zikhubazeke okanye zidilike, kubandakanywa amaqondo obushushu agqithisileyo, umahluko omkhulu wobushushu, kunye ne-vacuum ephezulu kakhulu.

    Izicelo eziphambili zeSilicon Nitride Ceramics

    Imekhenikhali yenjineri: I-silicon nitride ceramics inobulukhuni obuphezulu, ukuxhathisa okugqwesileyo kokunxiba kunye nokumelana nomhlwa, kwaye isetyenziswa ngokubanzi kumacandelo obunjineli boomatshini. Ingasetyenziselwa ukwenza iinxalenye ezinjengeebheringi, izitywina, izixhobo zokusika kunye nemibhobho kwiqondo lokushisa eliphezulu kunye nesantya, ukubonelela ngokusebenza okugqwesileyo kunye nobomi obude.

    Umzi mveliso weemoto: Ngenxa yozinzo oluphezulu lobushushu kunye nokumelana nokunxiba kwe-silicon nitride ceramics, isetyenziswa ekwenzeni amacandelo enjini yemoto. I-Silicon nitride ceramics ingasetyenziselwa ukwenza ii-injini ze-injini eziphezulu zokusebenza ezifana ne-piston rings, i-cylinder liners kunye ne-valve, inceda ekuphuculeni ukusebenza kakuhle kwamafutha kunye nokunciphisa ukukhutshwa.

    I-Aerospace: Ubunzima obukhanyayo, amandla aphezulu kunye nokumelana nobushushu obuphezulu be-silicon nitride ceramics kubenza babe zixhobo ezifanelekileyo zokusetyenziswa kwe-aerospace. Ingasetyenziselwa ukwenza amacandelo aphambili afana namacandelo e-injini, ii-injini ze-injini, izinto zokubeka yedwa ezishushu kunye nokhuseleko lwe-thermal yesiphekepheke ukuhlangabezana neemfuno zobushushu obuphezulu, uxinzelelo oluphezulu kunye nokusingqongileyo okugqithisileyo.

    Ishishini lemichiza: Iiseramics ze-silicon nitride zisetyenziswa ngokubanzi kwishishini lemichiza ngenxa yozinzo lwazo lweekhemikhali ezigqwesileyo kunye nokumelana nokubola. I-Silicon nitride ceramics ingasetyenziselwa ukwenza iikhemikhali zokusabela kweekhemikhali, abathwali be-catalyst, izixhobo ze-asidi kunye ne-alkali ezixhathisayo kunye nemibhobho, kwaye inokumelana neendaba ezinobungozi kunye neemeko eziphezulu zokushisa.

    I-Optoelectronics: I-Silicon nitride ceramics ineepropathi ezibalaseleyo ze-optical kunye ne-elektroniki, ngoko ke zinezicelo ezibalulekileyo kwintsimi ye-optoelectronics. Ingasetyenziselwa ukuvelisa ubushushu obuphezulu kunye ne-fiber amplifiers yamandla aphezulu, i-laser, izixhobo zonxibelelwano ze-optical kunye ne-Windows optical ... njl., kunye ne-optical transmittance egqwesileyo kunye nokuzinza kwe-thermal.

    Into yovavanyo Ukusebenza
    Ubuninzi (g/cm3) 3.2
    I-Elastic Modulus (GPA) 320
    Umlinganiselo wePoisson 0.24
    I-Thermal Conductivity W/(m*k)ITempile yeGumbi 25
    I-Coefficient ye-Thermal 2.79
    Ukwandiswa ( 10-6/K) (RT〜500°C)
    Amandla okuNgqobhoza amaNqaku ama-3 (MPa) 950
    Weibull Modulus 13.05
    Vickers Ukuqina (HV10) Kg/mm 1490
    Ukuqina Kokwaphuka (KI,IFR) 6.5~6.6
    Ubungakanani bePore (gm) ≤7
    Umxube(ubuninzi/cm) 25-50 2
    50-100 0
    100-200 0
    >200 0