I-sintered silicon carbide sisixhobo esibalulekileyo se-ceramic, esisetyenziswa kakhulu kwiindawo ezinobushushu obuphezulu, uxinzelelo oluphezulu kunye namandla aphezulu. I-reactive sintering ye-SIC linyathelo eliphambili ekulungiseleleni izixhobo ze-SIC ezi-sintered. Ulawulo olufanelekileyo lwe-sintering SIC reaction lunokusinceda silawule imeko ye-reaction kwaye siphucule umgangatho wemveliso. Indlela efanelekileyo yokulawula ye-sintered silicon carbide reaction ixutyushwa kweli phepha.
1. Ukuphucula imeko ye-SIC ebangela ukudumba kwe-reaction
Iimeko zokusabela zizinto ezibalulekileyo kwiiparameter zempendulo ye-sintered silicon carbide, kubandakanya ubushushu bokusabela, uxinzelelo lokusabela, umlinganiselo wobunzima be-reactant kunye nexesha lokuphendula. Xa kulungiselelwa iimeko zokusabela, kuyimfuneko ukulungelelanisa ngokweemfuno ezithile zesicelo kunye nendlela yokusabela.
(1) Ubushushu bokusabela: Ubushushu bokusabela ngomnye wemiba ephambili echaphazela isantya sokusabela kunye nomgangatho wemveliso. Kuluhlu oluthile, okukhona ubushushu bokusabela buphezulu, kokukhona isantya sokusabela sikhawuleza, kokukhona umgangatho wemveliso uphezulu. Nangona kunjalo, ubushushu bokusabela obuphezulu kakhulu buya kukhokelela ekwandeni kweembobo kunye nemingxunya kwimveliso, nto leyo echaphazela umgangatho wemveliso.
(2) Uxinzelelo lokusabela: Uxinzelelo lokusabela lukwachaphazela isantya sokusabela kunye noxinano lwemveliso. Ngaphakathi koluhlu oluthile, kokukhona uxinzelelo lokusabela luphezulu, kokukhona isantya sokusabela sikhawuleza kwaye uxinano lwemveliso luphezulu. Nangona kunjalo, uxinzelelo lokusabela oluphezulu kakhulu lunokukhokelela kwiimbobo kunye nemingxunya emininzi kwimveliso.
(3) umlinganiselo wobunzima be-reactant: umlinganiselo wobunzima be-reactant yenye into ebalulekileyo echaphazela isantya se-reaction kunye nomgangatho wemveliso. Xa umlinganiselo wobunzima be-carbon ukuya kwi-silicon ufanelekile, izinga le-reaction kunye nobunzima bemveliso. Ukuba umlinganiselo wobunzima be-reactant awufanelekanga, uya kuchaphazela izinga le-reaction kunye nobunzima bemveliso.
(4) Ixesha lokuphendula: Ixesha lokuphendula lelinye lawona manqaku achaphazela isantya sokusabela kunye nomgangatho wemveliso. Ngaphakathi koluhlu oluthile, kokukhona ixesha lokuphendula lide, kokukhona isantya sokusabela sicotha kwaye umgangatho wemveliso uphezulu. Nangona kunjalo, ixesha elide kakhulu lokuphendula liya kukhokelela ekwandeni kweembobo kunye nemingxunya kwimveliso, nto leyo echaphazela umgangatho wemveliso.
2. Ulawulo lwenkqubo ye-reactive sintering silicon carbide
Kwinkqubo yokusabela kwe-SIC, kuyimfuneko ukulawula inkqubo yokusabela. Injongo yolawulo kukuqinisekisa uzinzo lwempendulo kunye nokuhambelana komgangatho wemveliso. Ulawulo lwenkqubo yokusabela luquka ulawulo lobushushu, ulawulo loxinzelelo, ulawulo lomoya kunye nolawulo lomgangatho we-reactant.
(1) Ulawulo lobushushu: Ulawulo lobushushu yenye yezona zinto zibalulekileyo zolawulo lwenkqubo yokusabela. Ulawulo lobushushu Ubushushu bokusabela kufuneka bulawulwe ngokuchanekileyo kangangoko ukuqinisekisa uzinzo lwenkqubo yokusabela kunye nomgangatho wemveliso ohambelanayo. Kwimveliso yanamhlanje, inkqubo yolawulo lwekhompyutha idla ngokusetyenziswa ukulawula ngokuchanekileyo ubushushu bokusabela.
(2) Ulawulo loxinzelelo: Ulawulo loxinzelelo lolunye umba obalulekileyo wolawulo lwenkqubo yokusabela. Ngokulawula uxinzelelo lokusabela, uzinzo lwenkqubo yokusabela kunye nokuhambelana komgangatho wemveliso kunokuqinisekiswa. Kwimveliso yanamhlanje, inkqubo yolawulo lwekhompyutha idla ngokusetyenziswa ukulawula ngokuchanekileyo uxinzelelo lokusabela.
(3) Ulawulo lwemozulu: Ulawulo lwemozulu lubhekisa ekusebenziseni umoya othile (njengomoya ongasebenziyo) kwinkqubo yokusabela ukulawula inkqubo yokusabela. Ngokulawula umoya, uzinzo lwenkqubo yokusabela kunye nokuhambelana komgangatho wemveliso kunokuqinisekiswa. Kwimveliso yanamhlanje, inkqubo yolawulo lwekhompyutha idla ngokusetyenziswa ukulawula umoya.
(4) Ulawulo lomgangatho weReactant: Ulawulo lomgangatho weReactant yenye yezinto ezibalulekileyo ukuqinisekisa uzinzo lwenkqubo yereactant kunye nokuhambelana komgangatho wemveliso. Ngokulawula umgangatho wereactants, uzinzo lwenkqubo yereactant kunye nokuhambelana komgangatho wemveliso kunokuqinisekiswa. Kwimveliso yanamhlanje, inkqubo yolawulo lwekhompyutha idla ngokusetyenziswa ukulawula umgangatho wereactants.
Ulawulo olufanelekileyo lwe-SIC ekhuphayo i-reactive sintering linyathelo eliphambili lokulungiselela izixhobo ze-SIC ezikhuphayo ezikumgangatho ophezulu. Ngokwenza ngcono iimeko zokusabela, ukulawula inkqubo yokusabela kunye nokubeka esweni iimveliso zokusabela, uzinzo lwenkqubo yokusabela kunye nokuhambelana komgangatho wemveliso kunokuqinisekiswa. Kwindlela yokusebenza, indlela yokusabela ye-silicon carbide ekhuphayo kufuneka ilungiswe ngokweemeko ezithile zokusetyenziswa ukuze kuhlangatyezwane neemfuno ezahlukeneyo zokusetyenziswa.
Ixesha lokuthumela: Juni-05-2023