(Ukuqhuma kwe-ceramicIveliswe nguWintrustek)
Ngokutsho kwesichazi-magama, ibrazang "ukujoyina iziqwenga ezibini zensimbi ngokususa ungqimba okanye i-spelter phakathi kwendawo edibeneyo." Kusenokwenzeka ukuba ikhutshiwe kwigama lesiFrentshi ukusuka ngenkulungwane ye-16 oko kuthetha "ukutshisa."
Eyona nto ibalulekileyo, inyibiliki ye-braza kwaye ihamba phakathi kweziqwengana zezinto ezimbini ngexesha lokusebenza. Idla ngokubizwa ngokuba 'yimanzi, "le nkqubo ibalulekile, ngakumbi xa krakra i-ceramics. Ezi ntsuku, izixhobo ezahlukeneyo zinokufuduka ukwenza amalungu phakathi kwabo; Izixhobo ezinyibilike kumaqondo obushushu ngaphezulu kwe-450 ° C aziwa njengezabhuli, ngelixa ezo zinyibilikayo kumaqondo obushushu ngaphantsi kwe-4 450 ° C zaziwa njengabarhwebi.
Indlela esekwe kwi-ceramic, ibrazang yinkqubo yesigaba sokusebenza esebenza ngokukhethekileyo ukudala ukudibana kunye namatywina. Izinto ezisetyenzisiweyo kumashishini e-elektroniki kunye neshishini lokuzilungiselela, umzekelo, zinokuba nobunzima obuncinci ngokuvelisa ubuchwephesha bobuqhetseba.
Njengoko wonke umntu eqondayo, i-ceramics inonyamezelo olulinganiselweyo lwexinzelelo lwe-tensle kwaye lingagungqi kwaye lingqongqo kwaye liqinile. Banayo nexesha elincinci. I-Cemiramics yenziwa ukuba icinezelwe phantsi koxinzelelo ukuba kunokwenzeka. Bachaphazeleka kwimothokoyiki ye-thermal nokuba baqeshiwe njenge-themerials. Nangona kunjalo, ngoku sinokuguqula ezi mpawu ukuze zihambelane neenjongo ezithile, ngakumbi ukongeza ii-fibers, ii-whiskers, okanye enye into eshukumisayo (eyomeleleyo). Ukongeza, banokuphucula ukufaneleka kwabo kwizicelo ezahlukeneyo ngokwenkqubo yokuphazamiseka.
Umahluko omkhulu phakathi kweukuqhuma kwe-cerazicKwaye izinyithi kukuba i-ceramics ayimanzi uninzi lwezixhobo eziqhelekileyo zokubhaka. Kungenxa yezi mpawu zibalulekileyo zomzimba, ezifana nebhondi yabo enobubele kunye ne-ionic. Ngapha koko, kunzima ukudala uqhagamshelo lwekhemikhali lokuphucula ubumbeleli kuba i-ceramics ingazinzile ngakumbi kuneentsimbi. Iindlela ezahlukeneyo ezinokusetyenziselwa ukudibanisa amalungu eyamkelekileyo, i-brazing-ceramic isenokuba yeyona ibaluleke kakhulu kwaye iguquguqukayo ekusebenziseni i-ceramics ngenxa yokubaluleka kwezoqoqosho. Ngaphambili i-ceramics isebenze kakuhle kubushushu begumbi, ebonisa ukuxhathisa impatho kunye neempawu zokufaka izilwanyana (ngaphandle kothusa).
Umcimbi wokujongana neemeko zenkonzo kumaqondo obushushu aphezulu kwi-oxidiching okanye ezona zinto zinezinto ezibalulekileyo zoomatshini ziqhubela phambili iintlobo zezibini ezinqwenelekayo.
Kukho ukutyhala okuqinileyo ukuphucula izicelo ze-ceramic kwiinjini ze-thermal kunye nokuchitha izityalo zobushushu ezivelisa umbane. Zonke zinokufuna i-ceramic brazic brazing. I-ceramic nge-CTE kuluhlu lweentsimbi eziphantsi kakhulu aziqhelekanga kakhulu kwaye kusenzeka ngempumelelo ukugqiba i-brazic-ceramic. Ukuyila amajoyina ukuze uxinzelelo phantsi koxinzelelo yenye indlela esetyenziselwa ukuvala umsantsa kwixabiso le-CTE. Ngenye indlela, xa amaxabiso e-CTE acaca kakhulu, ukusetyenziswa kwezinto eziphakathi kunokubonelela ngotshintsho oluthambileyo ukusuka kwelona xabiso liphezulu lepropathi.
Ezi ndlela zilandelayo zisetyenziselwa ukukhuthaza ukumiswa kwentsimbi yeFiller ye-ceramics kunye nokubambelela komhlaba:
1. Ngokungathanga ngqoBrazing-ceramickubandakanya ukuqalisa into, ngokuqhelekileyo isinyithi, ukuya kumphezulu we-ceramic kwi-cemaint enokuthi imanzi yintsimbi esemgangathweni yensimbi ngaphandle kwentsimbi engachazwanga.
I-metallic cast isebenza njengento ebukela umsantsa phakathi kwe-ceramic kunye nentsimbi. Kufuneka kuthathwe ukhathalelo ukuthintela i-ceramic ukuba iqhekezwe ngumba wokuthandwa kobushushu obushushu.
I-molybdenum eyaziwayo yaseMolybdenum-manganese iqhelekile kule klasi. Ukupeyinta i-ceramic, umxube weziphatho ezenziwe ngokukhethekileyo ziyasetyenziswa.
Emva koko, itshisiwe malunga ne-1500 ° C (2730 ° F) kwimo ye-hydrogen yendawo ye-hydrogen, eqhuba izixhobo ze-ceramic ye-cegy ukufudukela kumgubo wesinyithi kwaye uyincamathisele kumphezulu.
Ukuqokelela izinyithi, ezinye iindlela ezisebenzayo zokuziqeqesha zisebenzisa i-Vapor ye-Vapor yomzimba (PVD). Emva koko, i-brazic-ceramic iqhutywa kusetyenziswa i-Filling esemgangathweni ye-Filling ehambelana nentsimbi ekufuneka iqhagamshelwe.
2. Sebenzisa izinyibilikisi ezisebenzayo ze-Fibler ezinamacandelo olwakhiwo owodwa ukuze zifake i-ceraramic ngqo. Ukumanzi kunye nokunamanzi kuyaphuculwa xa izinyibilikisi ezinamalungelo amachaphaza amayeza e-ceramic zongezwa kwi-Allows esekwe kwinqanaba lesilivere.
Ngenxa yoku, izinyithi ezisabela nge-oxygen, njenge-titanium, i-tincoum, i-zilium, i-hafnium, i-silicon, nceda i-sling braying theramics ye-oxide ngaphandle kwe-oxide imanzi i-ceramics ngaphandle kwamalungiselelo oxinazo.
Ukumanzisa i-Silicon Carbide okanye i-Silicon Nitroide incediswa zizinyithi ezisabela nge-silicon, ikharbon, okanye initrogen.
