Ukulungiswa kunye neempawu ze-silicon carbide ceramics ngokusila i-reaction

I-Silicon carbide (i-SiC) yi-compound ye-covalent eyenziwe nge-carbon kunye ne-silicon kwaye yaziwa ngeempawu zayo ezintle, kubandakanya ukumelana nokuguguleka okuphezulu, ukumelana nokushukuma kobushushu, ukumelana nokugqwala okunamandla kunye nokuqhuba okuphezulu kobushushu. Ezi mpawu zenza i-silicon carbide ibe yinto efanelekileyo kwizicelo ezahlukeneyo kumashishini amaninzi, kubandakanya i-aerospace, ukwenziwa koomatshini, iikhemikhali zepetrochemicals, ukunyibilikisa isinyithi kunye ne-elektroniki. Ifanelekile ngokukodwa kwimveliso yeendawo ezigugulekayo kunye neendawo zesakhiwo ezishushu kakhulu. Uphuhliso lweeseramikhi ze-silicon carbide ezifakwe kwi-reaction-sintered ludlale indima ebalulekileyo ekuphuculeni ukusetyenziswa kwemizi-mveliso kwezi zinto ziguquguqukayo.

Indlela yemveli yokuvelisaiiseramikhi ze-silicon carbide ezifakwe kwi-reaction-sinteredkukusebenzisa umgubo we-silicon carbide odityaniswe nomgubo omncinci we-carbon. Lo mxube udlula kwi-siliconization reaction yobushushu obuphezulu ukuze wenze izinto ze-ceramic ezixineneyo. Nangona kunjalo, olu bugcisa bendabuko abunazo iingxaki zalo. Inkqubo yokusila ibonakala ngokuthatha ixesha elide, ubushushu obuphezulu kunye nokusetyenziswa kwamandla aphezulu, okubangela iindleko eziphezulu zemveliso. Njengoko iimfuno zoshishino zeemilo ze-silicon carbide ceramic kunye neefom ziya zisiba nzima ngakumbi, imida yeendlela zemveli iya icaca ngakumbi.

Kwiminyaka yakutshanje, ukungeniswa kwee-nanopowders ze-silicon carbide kuye kwaba sisisombululo esithembisayo sokuphucula iimpawu zoomatshini zee-silicon carbide ceramics. Ukusebenzisa ii-nanopowders kunokuvelisa ii-ceramics ezinobunzima obuphezulu kunye namandla aphezulu okugoba. Nangona kunjalo, ixabiso le-silicon carbide nanopowder liphezulu, lidla ngokudlula i-10,000 yuan ngetoni, nto leyo ebangela umqobo omkhulu ekwamkelweni ngokubanzi kunye nemveliso enkulu. Lo mceli mngeni wezoqoqosho ufuna ukuphononongwa kwezinye izinto kunye neendlela zokwenza imveliso yee-silicon carbide ceramics ibe nokwenzeka kwaye ingabizi kakhulu.

Ukongeza, ukukwazi ukuvelisa iimilo ezintsonkothileyo kunye neenxalenye ezinkulu kuvula iindlela ezintsha zokusetyenziswa kwe-silicon carbide ceramic. Amashishini afuna uyilo oluntsonkothileyo kunye nezixhobo zokusebenza okuphezulu angazuza kule ndlela intsha yokulungiselela. Ukuguquguquka koyilo kunye nokukwazi ukuvelisa ngobuninzi ii-silicon carbide ceramics ezikumgangatho ophezulu kunokukhokelela kwinkqubela phambili enkulu kwiindawo ezifana ne-aerospace kunye ne-elektroniki apho ukusebenza kwezinto kubalulekile.