Kudzivirirwa kweoxidation yemhangura furo mune sintering mavira

Chikonzero neifuro remhangurahaina oxidize
Foam yemhangura chinhu chine porous chakagadzirwa kubva musanganiswa wesimbi yemhangura uye pamusoro pemhepo inopupuma, inobikwa nekuwedzerwa pakupisa kwakanyanya. Muchoto chinopisa, furo remhangura riri nyore kuita oxidize mumhepo nekuti mamorekuru eokisijeni anogona kupinda mukati mefuro kuburikidza nemapores efuro uye anoita nemhangura kuburitsa copper oxide. Zvisinei, kune nhamba huru yegesi pores mukati memhangura yemhangura, uye idzi gasi pores dzinogona kudzinga mamorekuru eokisijeni kubva mukati me furo, nokudaro kuona mhedzisiro yekusaita oxidation.
Matanho Okudzivirira
Kunyangwe paine huwandu hukuru hwegasi pores mukati meiyofuro remhangura, kana mhepo iri mukati mechoto isina kukodzera icharamba ichitungamirira kune oxidation. Nokudaro, muchoto chekupisa, kuitira kuchengetedza furo remhangura kubva kune oxidation, matanho anotevera anofanira kutorwa:
1. Flow atmosphere control: Dzora redox mamiriro muchoto che sintering nekugadzirisa iyo inopisa redox inogona. Pakati pavo, iyo oxidizing mhepo inomhanyisa iyo oxidation yemhangura furo, saka zvinodikanwa kudzikisa zvirimo zveokisijeni uye kuwedzera zvirimo mukuderedza gasi.
2. Surface coating protective agent: kuvhara chidimbu chekudzivirira chekudzivirira pamusoro pefuro remhangurainogona zvinobudirira kuramba oxidation. Anowanzo shandiswa anodzivirira ari silicon oiri, sintered kabhoni poda, aluminium oxide uye zvichingodaro. Pakati pavo, alumina inogona kuumba yakagadzika alumina firimu kudzivirira imwe okisijeni kuita.
Chikonzero nei furo remhangura risingaite oxidize muchoto chekupisa ndechekuti kune huwandu hukuru hwegasi pores mukati mayo, iyo inogona kudzinga mamorekuru eokisijeni kunze kwemukati wefuro. Kuti udzivirire foam yemhangura, zvinodikanwa kudzora kuyerera kwemhepo muchoto chekupisa uye kupfekedza nzvimbo yayo nevanodzivirira uye mamwe matanho.