Ukukhuselwa kwe-oxidation ye-foam yobhedu kwii-sintering furnaces

Isizathu sokubaugwebu lobheduayifaki oxidize
I-foam ye-Copper yinto ene-porous eyenziwe kumxube we-metallic copper kunye ne-agent ye-foam engaphezulu, ebhaka kwaye yandiswe kumaqondo aphezulu. Kwisithando somlilo, i-foam yobhedu kulula ukuyikhupha emoyeni ngenxa yokuba iimolekyuli ze-oksijini zinokungena ngaphakathi kwi-foam ngokusebenzisa i-foam pores kwaye ziphendule ngobhedu ukuvelisa i-oxide yobhedu. Nangona kunjalo, kukho inani elikhulu le-gas pores ngaphakathi kwe-foam yobhedu, kwaye le mibhobho yegesi inokukhupha iimolekyuli ze-oksijini ukusuka kwi-foam yangaphakathi, ngaloo ndlela iqonda umphumo wokungafaki i-oxidation.
Amanyathelo Okukhusela
Nangona kukho inani elikhulu pores igesi ngaphakathiugwebu lobhedu, ukuba umoya ongaphakathi kwesithando somlilo awufanelekanga uya kukhokelela kwi-oxidation. Ngoko ke, kwisithando somlilo, ukukhusela i-foam yobhedu kwi-oxidation, kufuneka kuthathwe amanyathelo alandelayo:
1. Ukulawula umoya we-flow flow: Lawula umoya we-redox kwisithando somlilo ngokulungisa amandla e-thermal redox. Phakathi kwabo, umoya we-oxidizing uya kukhawulezisa i-oxidation ye-foam yobhedu, ngoko kuyimfuneko ukunciphisa umxholo we-oksijini kunye nokwandisa umxholo wokunciphisa igesi.
2. I-arhente ekhuselayo yokukhusela ubuso: ukugquma umaleko we-arhente yokukhusela kumphezulu weugwebu lobheduinokumelana ngempumelelo ne-oxidation. Iiarhente zokukhusela ezisetyenziswa ngokuqhelekileyo ziyioli ye-silicon, i-sintered carbon powder, i-aluminium oxide kunye nokunye. Phakathi kwazo, i-alumina inokwenza umaleko wefilimu ye-alumina ezinzileyo ukuthintela ukusabela okungaphezulu kwe-oksijini.
Isizathu sokuba i-foam yobhedu ingafaki i-oxidize kwisithando somlilo kukuba kukho inani elikhulu leepores zegesi ngaphakathi kwayo, ezinokukhupha iimolekyuli ze-oksijini ngaphandle kwe-foam yangaphakathi. Ukuze ukhusele i-foam yobhedu, kuyimfuneko ukulawula umoya wokuhamba kwisithando somlilo kunye nokugqoka ubuso bayo kunye nama-agent akhuselayo kunye namanye amanyathelo.