Ukuvavanya Amandla okuncamathela kunye neengozi zokuxobuka kwe-CVD TaC Coating

Kwizinto ezikhethekileyo zokugquma kwi-graphite, CVD TaC kwaye Cvd sic ukutyabeka Iinxalenye zoomatshini bokwenza iitshiphusi ezishushu kakhulu, ukusebenza kokubopha kwengubo kwinxalenye kubaluleke kakhulu kubomi bamalungu. Ukubopha okubuthathaka kubangela ukuqhekeka okuncinci kunye nokuqhekeka kwiinkqubo zobushushu kunye nokupholisa, okuvelisa ungcoliseko okanye ukhuseleko olungalinganiyo kunye nokungaphumeleli kwenkqubo. Iinxalenye ezininzi zibonakala kakuhle ekuqaleni kwifektri kwaye umphetho wayo uyaqhekeka emva kokusetyenziswa amaxesha amaninzi. Ke ngoko, amandla ebhondi kufuneka avavanywe ngaphambi kokuba iindawo ezisetyenziswa kwifektri zingasebenzi kakuhle ukuze kuthintelwe ukusilela okungalindelekanga koomatshini.

Uvavanyo oluQhelekileyo lokuncamathela kwi-CVD TaC Coating kwiGraphite Substrates

Ukuze kufunyaniswe amandla angqameneyo, kwenziwa uvavanyo oluninzi lomgangatho kwiifektri; okokuqala luvavanyo lokukrwela. Apha, kutsalwa incam yedayimani phezu kwengubo phantsi kwamandla akhulayo, ukuba ifilimu iyaqhekeka, iqhekeke okanye iphume kumaleko wegrafiti ngaphambi kwexesha ibonisa ukunamathelana okungekuhle. Olu luvavanyo olulula kodwa lubonisa iziphumo ezicacileyo ngaphambi kokuba iindawo zingene kwinkonzo.

Olunye uvavanyo olukhawulezileyo luvavanyo lweteyiphu apho iteyiphu yokuncamathelisa ifakwa kwifilimu ize isuswe; ukuba iiflekhi ziyaphuma neteyiphu, iqhina elisecaleni legrafiti linokuba buthathaka. Olu luvavanyo olukhawulezileyo lokuqala olusetyenziswa kwiilabhoratri ngaphambi kovavanyo olunzima ngakumbi.

Ukufudumeza nokupholisa okuphindaphindiweyo nako kuthandwa kakhulu, kuba le nkqubo ifana ngokugqibeleleyo nendlela yokusetyenziswa ngokugqibeleleyo. Iingubo eziqinileyo azibonisi miphumo mibi, ngelixa iingubo ezibuthathaka ziqala ukuqhekeka okanye ukukrazuka emaphethelweni. Kwimeko enye yefektri, iingubo aziphumelelanga emva kokufudunyezwa ngokuphindaphindiweyo (ukukrazuka emaphethelweni) nangona oku kwakubangelwa kukungcola kwesiseko ngaphambi kokusetyenziswa.

Uvavanyo lokutsalwa (apho i-stud incamatheliswa kwi-coating ize itsalwe ide i-substrate itsalwe kuyo) lolunye uvavanyo, olunika ixabiso kwi-continuum, lulungile ekuthelekiseni ii-batches kodwa lungathatha ixesha elide ukwenza. Uvavanyo lwe-indentation lusetyenziswa njengovavanyo olubonakalayo nolunokulinganiswa, apho indawo enzima iqhutyelwa kwi-coating kwaye ubungakanani bokwakheka kwe-crack bulinganiswa. Ukuba lwenziwe ngokuchanekileyo kunye, olu vavanyo luqinisekisa ukuthembeka okuhle kwe-coating.

Iimpawu Zesilumkiso Sokuqala Zokukrazula KweTaC Coating Kwizicelo zeEpitaxy

Olu hlobo loomatshini alunazo iimeko apho ukuqhekeka kwengubo kwenzeka ngokungalindelekanga. Uninzi lwexesha kukho utshintsho oluncinci oluvelayo kwinxalenye, olungabonakali. Utshintsho lombala wengubo lubonakala kwangethuba. Ingubo entsha kufuneka ibonakale ilingana kwaye igudile kodwa phantsi koxinzelelo inxalenye ethile ibonakala ingabonakali ngombala, ngakumbi emaphethelweni, kwiikona nakwiindawo ezinobushushu obuphezulu.

Kudla ngokubakho nokuphakamisa umphetho okuncinci kakhulu okubonakala njengomaleko omileyo wokugquma kwimida ukuba ujongwa ekukhanyeni nge-engile efanelekileyo okanye xa ukhuliswa kakhulu. Komnye umgca wefektri umsebenzi wokucoca wabona amasuntswana othuli amancinci ecaleni komphetho wenxalenye, waza wafumanisa ukuba ukuqhekeka sele kuqalile kumphetho.

Iimfantu ezikwimigca yeenwele nazo zibonisa ingxaki. Iimfantu zokuqala zincinci kwaye azikho phezulu kwaye zivela kwiindawo ezinoxinzelelo lobushushu, ekugqibeleni zidibana ukuze zenze iindawo ezinkulu zokuqhekeka ukuba imfantu ayilungiswanga. Ezinye izalathisi ezingabonakaliyo ziquka amanqanaba aphezulu eenxalenye okanye uthuli ngaphakathi kwigumbi.

Nangona kungekho siphene sibonakalayo kwi-coating, amasuntswana anokuchitha i-coating ngexesha lokusebenza kwaye anokubonwa kwiimonitha ngaphambi kokuba kubekho ukusilela okukhulu. Uburhabaxa bunokwanda, njengoko i-coating eyayisele igudile ivelisa imbonakalo ye-grain ngenxa yokuwohloka komaleko ophezulu we-coating.

Ngenxa yokuba isiphene esincinci esisecaleni sinokukhula sibe yimpazamo enkulu ebeka umgangatho emngciphekweni kwaye ifune ukuba umatshini ungasebenzi, ukuchonga ezi mpawu zokuqala kubalulekile.

Iziphumo ze-Thermal Cycling kwi-CVD TaC Coated Epitaxial Parts

Ngenxa yokuba izinto ezigqunyiweyo zifudunyezwa kwaye zipholiswe emini, kukho uxinzelelo olunamandla kakhulu oluvela kwingubo ngokuhamba kwexesha. Xa izinto zifudunyezwa, ingubo kunye negrafiti ziyanda, kodwa ngamanqanaba ahlukeneyo. Ngoko ke, umjikelo ngamnye wobushushu uphuhla uxinzelelo phakathi kwezinto ezimbini kwi-interface. Xa inxalenye iphola, uxinzelelo lujika ngenye indlela. Umjikelo omnye wokufudumeza nokupholisa awuyi kubangela monakalo, nangona kunjalo, ngexesha lamakhulu omjikelo onjalo kuvela uxinzelelo oluncinci lwangaphakathi.

Ingubo iya kuba bushelelezi kwaye izinzile, kodwa emva kokutshintsha kobushushu ngokuphindaphindiweyo iindawo ezincinci zoxinzelelo ziya kuvela kwimiphetho ebukhali okanye ubushushu obungalinganiyo. Umbindi wenxalenye uya kuhlala ixesha elide, ingaphandle lenxalenye liya kuguga kwizixhobo zokwenyani. Ukuqhekeka okuncinci kumphetho wenxalenye ngumzekelo oqhelekileyo, emva kokusetyenziswa kaninzi kuya kuvela kumphetho kwaye kuya kuqala ukukhula njengoko uxinzelelo luyinyanzela ukuba yahlukane emva komjikelo ngamnye wobushushu kwaye amaqhekeza amancinci aya kuphuma.

Xa kufudunyezwa kwaye kupholiswa ngokuphindaphindiweyo, i-matrix yangaphakathi yengubo iyaguga, kangangokuba zimbalwa izinto eziya kudlula kuvavanyo lokuqala, nangona kunjalo emva kokusetyenziswa ixesha elide (iinyanga ezimbalwa) ziya kuba semngciphekweni wokonakala. Kwimeko enye, iindawo ziye zaqala ukuxobuka emva kwamakhulu ambalwa emijikelo ngenxa yokufudumeza ngokukhawuleza okudala uxinzelelo olukhulu kakhulu ngokuchasene nokufudumeza kancinci.

Iindlela Zonyango Lwangaphambi Komphezulu Zokuphucula Amandla Okubopha Ukwaleka

Kukho ukulungiswa okubalulekileyo ekufuneka kwenziwe kwiindawo zegrafiti ngaphambi kokuba kusetyenziswe naluphi na uhlobo lokugquma ukuze umaleko unamathele. Ukulungiswa okungalunganga kokugquma okulungileyo kuya kubangela ukuba ukugquma kungaphumeleli ngokukhawuleza. Ukucoca nzulu inxalenye yegrafiti yenye yeendlela zokulungiselela. Igrafiti ibamba lula uthuli olucolekileyo, iioyile eziseleyo, okanye amasuntswana okugaya ngaphakathi kwimingxuma yayo. Ezi zinto zithintela ngokwasemzimbeni ukugquma ngokuthe ngqo kwisiseko.

Kwanefilimu yeoyile encinci iya kudala iindawo ezibuthathaka kwibhondi, eziya kuba ziindawo zokuqala ukuxobuka. Izisombululo zokucoca ezizizo zihlala zisetyenziswa okanye ngamanye amaxesha inxalenye ibhakwa esitovini ukususa naziphi na iintsalela ezihleli nzulu.

Okulandelayo kukuqinisekisa ukuba umphezulu urhabaxa kancinci ukuze kwandiswe ukubamba okusebenzayo okuya kuba nako xa umphezulu ubugudile ngokugqibeleleyo. Oku kuqheleke ukuba kufezekiswe ngokuqhumisa isanti okanye ngokulawula izixhobo zomatshini ukuze kufunyanwe umphezulu orhabaxa kodwa ozinzileyo wokubamba ukuze i-coating "ibambeke" ngoomatshini, okanye ngokusebenzisa unyango lwe-plasma oluthi okomzuzwana luqhumise umphezulu we-graphite ngegesi ukuze lusebenze kwaye luwenze ube nokwenzeka ngokweekhemikhali ukuba uhambelane nezinto zokugquma ngelixa kungekho miphumo mibi kwimo ye-substrate.

Unyango lobushushu lweendawo zegrafiti lusetyenziswa ngaphambi kokugquma, kuba ukubhaka inxalenye ngobushushu obuphezulu kunokukhupha iigesi ezivalelekileyo ngaphakathi kwezinto. Ezi gesi zinokuphuma ngelixa kufakwa igquma, nto leyo edala indawo efanelekileyo yendawo ebuthathaka okanye iblista phantsi kwegquma. Ezi nkqubo zihlala zidityanisiwe.

Uhlalutyo Lokusilela KweeRingi Ezigqunywe NgeTaC Ezisetyenziswa Kwiinkqubo zeLPE (ASM)

Iiringi zegrafiti ezigqunyiweyo zisebenza phantsi kweemeko ezinzima kakhulu kuquka ubushushu obuphezulu, ukuhamba kwegesi ephezulu, kunye nemijikelo yobushushu. Iindlela zokungaphumeleli kweeringi zegrafiti ezigqunyiweyo zihlala zinxulunyaniswa noxinzelelo lokugcoba, umgangatho womphezulu kunye nokudinwa kobushushu.

Ukwahlulwa komphetho apho uqweqwe ludla ngokuhlukana kwimiphetho yemiphetho ebukhali kunye nenxalenye encinci njengoko ziphantsi kwamazinga okuphola okukhawulezileyo kunye nokufudumala xa kuthelekiswa neendawo ezinkulu. Emva kokuqaliswa kokuphakanyiswa komphetho, le meko ikhula njenge-zipper evulekileyo ecaleni komphetho.

Ukuqhekeka okuncinci kunokwenzeka kumphezulu wangaphakathi apho ukuhamba kwegesi kunamandla ngakumbi kwaye kuvelisa iindawo ezishushu kakhulu kwindawo. Kwafunyanwa iqela lothuli olumnyama olucolekileyo kwinkqubo enye edibene nemingxunya emincinci eludongeni lwangaphakathi lwesangqa. Ukungaphumeleli kokubopha i-interface yenye indlela esisiseko; ukunamathela okubuthathaka ngaphantsi komaleko kubangelwa kukuqhekeka kwendawo enkulu ngequbuliso ngokuqhelekileyo kumphezulu ongacocwanga kakuhle okanye iigesi ezivaleleke kumphezulu okhula ngokukhawuleza.

Kwelinye icala, ukujikeleza ngokukhawuleza kobushushu kudala ukuxinana kobushushu apho uxinzelelo lobushushu lunokwakheka ngokukhawuleza kwindawo yokugquma/isiseko. Kwinkqubo enye yokuvelisa indandatho yahlala iinyanga ezimbalwa kuphela. Nangona yayibonakala iqhelekile ekuqaleni, inqanaba leenxalenye zamanzi landa kancinci kwaye emva kokususwa inxalenye enkulu yogquma yayiqhekekile kufutshane neendawo zokuncamathisela.

Oku kusilela kubangelwe kukufudumeza okungafanelaniyo kunye nokucocwa kakuhle komphetho ngaphambi kokuba kugqunywe. Nangona ukusilela kudla ngokuvela kwiziphene ezincinci ngokuhamba kwexesha, ukuhlolwa rhoqo kunye nobushushu bokufudumeza obuzinzileyo kunokuba ngamanyathelo alungileyo okuthintela ukusilela kolu hlobo.