Ukusebenza okuPhezulu ngeSilicon Carbide Tube

Iityhubhu zeSilicon Carbide zizinto ezisebenza ngokuphezulu ezisetyenziswa kwizicelo ezininzi ezifunayo. Iimpawu zabo ziquka ubunzima obubalaseleyo, ukuzinza kwe-thermal kunye nokuchasana nokugqoka, umhlwa kunye nokukrala.

Iiseramikhi ezithe ngqo zeSiC ze-Sintered ziqhayisa ngokuxhathisa ukothuka kwe-thermal kunye nokwandiswa kwe-thermal coefficient, ibenza ukuba bafaneleke ngakumbi kwizicelo ze-abrasive kune-cobalt-bonded tungsten carbide kwiindawo ezifunwayo.

Ukuqina

Iityhubhu ze-Kerui silicon carbide zibonisa ubunzima obuphezulu, conductivity yombane, i-corrosion kunye nokumelana nokunxiba kunye nokuqina okukhethekileyo kobushushu obuphezulu bokusetyenziswa kwizicelo zemizi-mveliso.

Le ceramic ikhethekileyo yenziwe ngezakhiwo zetetrahedral zesilicon kunye neeathom zekhabhoni ezidityaniswe ngokuqinileyo ngamabhondi aqinileyo aqinileyo kwilathisi yekristale., okubangela ubunzima bayo obumangalisayo – yodlula idayimani ngobulukhuni ngelixa iqhayisa ngokuphindwe kathathu ukuxhathisa ukunxiba kunentsimbi etyhidiweyo.

I-Silicon carbide yinto eyandayo ethandwa kakhulu kubatshintshi bobushushu kumashishini enkqubo yeekhemikhali ngenxa yokukwazi ukumelana namaqondo obushushu aphezulu kunye neemeko ezingqongileyo., kwaye ikwafumaneka kumacandelo oomatshini ngokubanzi, kubandakanywa izitywina kunye neengxenye zempompo.

Ukwandiswa kwe-thermal ephantsi kunye nemodyuli ye-Young igqithise 400 I-GPa iqinisekisa iipropathi ezigqwesileyo zoomatshini kwaye iqinisekisa uzinzo lwe-dimensional, kuquka imodyuli yayo yoMtsha yokudlula 400 I-GPa yeepropathi ezigqwesileyo zoomatshini. Ngaphezulu, ukuxhathisa kwayo kwi-abrasion kunye nokugqwala kodlula oko kwe-tungsten carbide, iyenza ibe lukhetho olugqwesileyo lwemathiriyeli kwi-vacuum chucks, iibhloko zekhemikhali zokupholisha ngoomatshini, abathwali be-wafer kunye neebheringi zevacuum.

Ukunganyangeki

I-silicon carbide ixhathisa kakhulu kwi-corrosion, i-oxidation kunye nokhukuliseko kwiindawo ezininzi zeekhemikhali. Ngenxa yamandla ayo aphezulu kunye nokuqina, I-silicon carbide yenza olona khetho lufanelekileyo lwemathiriyeli yokutyhala kunye nejenali ephethe izinto kumaqondo obushushu aphezulu kunye nemodyuli yayo encinci edlulayo. 400 I-GPa ibonelela ngozinzo olukhethekileyo.

I-coefficient yokwandisa i-thermal ephantsi, Amandla aphezulu oomatshini kunye nobomi benkonzo obude benza ezi ityhubhu zibe lolona khetho lubalaseleyo kutshintshiselwano lobushushu ekunyibilikeni kwesinyithi kunye nokusetyenziswa kokwenziwa kweekhemikhali., kunye nakwimibhobho ekhanyayo kwi-carburizing, i-nitriding kunye neziko lokutshisa.

I-Sintered SiC isetyenziswa ngokubanzi njengenxalenye ebalulekileyo kwiinkqubo ezidibeneyo zokukhusela izixhobo. Enkosi ngamandla ayo aphezulu kunye nokuqina, I-Sintered SiC inokumelana neempembelelo ezivela kwiiprojekti zesantya esiphezulu ngaphandle kokuqhekeka phantsi kweempembelelo zazo, ukubonelela ngenye indlela esebenzayo kwisikrweqe sentsimbi esinokunikezela ekudlekeni kwaye siguge kwaye sikrazuke ngokuhamba kwexesha. Kanjalo, I-SiC ime njengenye yezona zinto zinzima emhlabeni (yodlulwa kuphela yidayimani kunye ne-boron carbide).

Ukuxhathisa ubushushu obuphezulu

Ulwakhiwo olukhethekileyo lwe-lattice ye-silicon carbide, yenziwe ngamabhondi phakathi kwe-carbon tetrahedron kunye neeathom zesilicon, iyenza ikwazi ukunika ubunzima obubalulekileyo, Ukomelela kwamatshini, ukwanda kwe-thermal ephantsi, ukungabi namsebenzi kunye nokumelana nomhlwa – iipropathi ezenza ukuba ibe yimathiriyeli efunwa kakhulu kwizitshintshi zobushushu kunye nezinye izicelo zobushushu obuphezulu.

Iityhubhu ze-ceramic ze-SSiC zixhathisa kakhulu kwi-abrasion, ukwandisa ubude bayo. Iindleko zokuyigcina ziphantsi ngenxa yobukhulu bayo bekhemikhali kunye namandla omatshini xa kuthelekiswa neetyhubhu zemveli.

Ezi mpawu zenza izixhobo ze-ceramic ze-SSiC zibe zizinto eziyimfuneko kwizixhobo ezahlukeneyo zobushushu obuphezulu, kuquka ukubunjwa okuphakathi, eziko zombane kwishishini lentsimbi kunye namashishini nonferrous metal ukunyibilikisa, iziko eziko kunye nabakhuseli thermocouple. Ngaphezulu, ukumelana kwayo nemekobume erhabaxa, amaqondo obushushu aphezulu, uhlaselo lweekhemikhali kunye nokutshatyalaliswa kwe-thermal kwenza i-SSiC imathiriyeli ye-ceramic ilungele iziko lemizi-mveliso ngelixa i-thermal conductivity egqwesileyo iqinisekisa ukusebenza kwayo kwaye iqinisekisa ukuthembeka kwayo..

Ukumelana nokuNxitywa okuphezulu

I-ceramic ye-SSiC yenye yezona zinamandla, izinto ezikhaphukhaphu kunye nezona zinzima kwimizi-mveliso. Ngamandla akhethekileyo, ubunzima kunye nokumelana nomhlwa – singasathethi ke ngokugqwesa ukuxhathisa kwe-abrasion kunye ne-coefficient ephantsi ye-friction phakathi kwezinto zokukhwelana – I-SSiC igqame njengokhetho olufanelekileyo lwemathiriyeli kwiimpompo zetywina, imilomo, iivalvu okanye nantoni na ebandakanya ukulahleka kwamandla okanye ukuguga. Iqhayisa ngokuxhathisa uhlaselo lweekhemikhali kumaqondo obushushu aphezulu; ukwenza i-SSiC igqibelele kubume bemichiza engqongqo kunye nokusetyenziswa kwexesha elide lokuphila okunje ngokutywinwa kwempompo.