I-Ceramization yobuso

I-Surface ceramization - ukufafaza kwe-plasma kanye nokuzisakaza kokushisa okuphezulu kokuhlanganiswa
Ukufafaza kwe-Plasma kukhiqiza i-DC arc phakathi kwe-cathode ne-anode. I-arc i-ionize igesi esebenzayo ibe yi-plasma yokushisa ephezulu. Ilangabi le-plasma lenzelwa ukuncibilikisa impushana yakhe amaconsi. Umfudlana wegesi wesivinini esikhulu wenza amathonsi abe athomu bese ewakhiphela ku-substrate. Ingaphezulu lakha ukunamathela. Inzuzo yokufafaza nge-plasma ukuthi izinga lokushisa lokufafaza liphezulu kakhulu, izinga lokushisa eliphakathi lingafinyelela ngaphezu kwe-10 000 K, futhi noma yikuphi ukugqoka okuphezulu kwe-ceramic iphuzu lokuncibilika kungalungiswa, futhi ukumboza kunobuningi obuhle namandla okubopha okuphezulu. Ububi ukuthi ukusebenza kahle kokufafaza kuphezulu. Imishini ephansi, futhi ebizayo, izindleko zokutshala imali zesikhathi esisodwa ziphezulu.

I-self-propagating high-temperature synthesis (SHS) ubuchwepheshe bokwenza izinto ezintsha ngokuziqhubela ngokwazo ukushisa okuphezulu kwamakhemikhali phakathi kwezinto ezisabelayo. Inezinzuzo zemishini elula, inqubo elula, ukusebenza kahle kokukhiqiza okuphezulu, ukusetshenziswa kwamandla okuphansi futhi akukho ukungcola. Kuwubuchwepheshe bobunjiniyela obuphezulu obufaneleka kakhulu ukuvikela udonga lwangaphakathi lwamapayipi. I-ceramic lining elungiselelwe yi-SHS inezici zamandla aphezulu okubopha, ubulukhuni obuphezulu nokumelana nokugqwala, okunganweba ngempumelelo impilo yepayipi. Ingxenye eyinhloko yolayini we-ceramic osetshenziswa kumapayipi e-petroleum yi-Fe+Al2O3. Inqubo iwukuxuba ngokulinganayo i-iron oxide powder kanye ne-aluminium powder epayipini lensimbi, bese uzungezisa ngesivinini esikhulu ku-centrifuge, bese uthungela ngenhlansi kagesi, futhi impushana iyavutha. Ukusabela kokususwa kwenzeka ukuze kwakhe ungqimba oluncibilikisiwe lwe-Fe+Al2O3. Isendlalelo esincibilikisiwe sendlalwe ngaphansi kwesenzo samandla e-centrifugal. I-Fe iseduze nodonga lwangaphakathi lwepayipi lensimbi, futhi i-Al2O3 yakha umugqa wangaphakathi we-ceramic kude nodonga lwamapayipi.