Umphezulu weceramization

I-Surface ceramization - ukutshiza i-plasma kunye nokuzizalisa ubushushu obuphezulu be-synthesis
Ukutshiza ngePlasma kuvelisa i-DC arc phakathi kwecathode kunye ne-anode. I-arc i-ionize igesi esebenzayo kwi-plasma ephezulu yokushisa. Ilangatye leplasma lenzelwa ukunyibilikisa umgubo ukwenza amathontsi. Isantya esiphezulu somjelo werhasi wenza atomize amathontsi kwaye emva koko uwakhuphele kwi-substrate. Umphezulu wenza isambatho. Inzuzo yokutshiza iplasma kukuba ubushushu bokutshiza buphezulu kakhulu, ubushushu beziko linokufikelela ngaphezulu kwe-10 000 K, kwaye nayiphi na indawo yokunyibilika ephezulu yokwaleka nge-ceramic inokulungiswa, kwaye ukugquma kunoxinzelelo oluhle kunye namandla okudibanisa okuphezulu. Ukungalungi kukuba ukusebenza kakuhle kokutshiza kuphezulu. Izixhobo eziphantsi, kwaye ezibizayo, iindleko zotyalo-mali zexesha elinye ziphezulu.

I-self-propagating high-temperature synthesis (SHS) iteknoloji yokwenza izinto ezintsha ngokuziqhubela ubushushu obuphezulu bekhemikhali phakathi kwee-reactants. Ineenzuzo zezixhobo ezilula, inkqubo elula, ukusebenza kakuhle kwemveliso, ukusetyenziswa kwamandla aphantsi kwaye akukho ngcoliseko. Ubuchwephesha bobunjineli bomhlaba obufanelekileyo kakhulu ekukhuseleni udonga lwangaphakathi lwemibhobho. I-ceramic lining elungiselelwe yi-SHS ineempawu zamandla aphezulu okubambisana, ubunzima obuphezulu kunye nokumelana nokugqwala, okunokwandisa ngokufanelekileyo ubomi bombhobho. Icandelo eliphambili le-ceramic liner esetyenziswe kwiipayipi zepetroleum yiFe + Al2O3. Inkqubo yokuxuba ngokulinganayo i-iron oxide powder kunye ne-aluminium powder kwipayipi yensimbi, kwaye emva koko ijikeleze ngesantya esiphezulu kwi-centrifuge, emva koko ivutha ngombane, kwaye umgubo uyavutha. Ukusabela kokufuduswa kwenzeka ukwenza umaleko otyhidiweyo we-Fe+Al2O3. Umaleko otyhidiweyo ubekwe phantsi kwesenzo samandla e-centrifugal. I-Fe isondele kudonga lwangaphakathi lombhobho wensimbi, kwaye i-Al2O3 yenza i-ceramic yangaphakathi liner kude nodonga lombhobho.