Iipropathi zezinto eziphathekayo phantsi kokungqubuzana, ukunxiba kunye neendawo zokushisa eziphezulu zifuna kakhulu, kwaye ukuvela kwezinto eziphathekayo ze-silicon carbide ezingenasici zisinika isisombululo. I-silicon carbide engenaxinzelelo ye-sintered yimathiriyeli ye-ceramic eyenziwe nge-sintering silicon carbide powder phantsi koxinzelelo oluphantsi okanye akukho xinzelelo lweemeko.
Iindlela zokutshiza zemveli zihlala zifuna uxinzelelo oluphezulu, okwandisa ubunzima kunye neendleko zenkqubo yokulungiselela. Ukuvela kwendlela ye-silicon carbide engeyiyo yoxinzelelo ye-sintering iye yatshintsha le meko. Ngaphantsi kwemeko yokungabikho koxinzelelo, i-silicon carbide powder idityaniswe kwiqondo lokushisa eliphezulu ngokusasazwa kwe-thermal kunye nokusabela komphezulu ukwenza i-ceramic material eshinyeneyo.
I-silicon carbide ye-Sintered ngaphandle koxinzelelo ineenzuzo ezininzi. Okokuqala, izinto ezilungiselelwe yile ndlela zinobuninzi obuphezulu kunye ne-microstructure efanayo, ephucula iimpawu zomatshini kunye nokumelana nokugqoka kwezinto. Okwesibini, akukho zixhobo zoxinzelelo ezongezelelweyo ezifunekayo kwinkqubo yokucofa i-sintering, eyenza lula inkqubo yokulungiselela kunye nokunciphisa iindleko. Ukongeza, indlela ye-non-pressure sintering inokuqonda ukulungiswa kobukhulu obukhulu kunye nemilo enzima yeemveliso ze-silicon carbide, kunye nokwandisa intsimi yesicelo.
Izinto ze-silicon carbide ze-Sintered ngaphandle koxinzelelo zinoluhlu olubanzi lwezinto ezinokubakho kwizicelo zobushushu obuphezulu. Zingasetyenziswa kwizitovu zobushushu obuphezulu, izinzwa zobushushu obuphezulu, izixhobo zamandla kunye ne-aerospace. Ngenxa yokuzinza kwayo okuphezulu kobushushu, ukumelana nokunxiba kunye ne-thermal conductivity, izixhobo ze-silicon carbide ezicinezelayo ezingacinezeleki zinokumelana nobushushu obugqithisileyo kunye neemeko zokusebenza ezinzima.
Nangona kunjalo, kusekho imingeni kwinkqubo yokulungiselela i-silicon carbide enganyanzelisiyo, njengokulawula ubushushu be-sintering kunye nexesha, ukusasazwa komgubo njalo njalo. Ngophuculo olongezelelweyo lwetekhnoloji kunye nophando olunzulu, sinokulindela ukusetyenziswa okubanzi kunye nokuphucula ngakumbi ukusebenza kwe-non-pressure sintering silicon carbide indlela kwintsimi yezinto eziphezulu zokushisa.
Isishwankathelo, i-silicon carbide engekho i-pressure sintered ivula ixesha elitsha lokulungiswa kwezinto eziphezulu zokushisa ngokwenza lula inkqubo yokulungiselela, ukuphucula izinto eziphathekayo kunye nokwandisa uluhlu lwesicelo. Ngophuhliso lwetekhnoloji, izixhobo ze-silicon carbide ezingacinezelikiyo ziya kubonisa amandla amakhulu kwizicelo zobushushu obuphezulu kwaye zizise izicelo ezitsha ngakumbi kumashishini ahlukeneyo.
Ixesha lokuposa: Jan-15-2024