Chikwata chevatsvakurudzi vanobva kuCurtin University, University of Western Australia, uye China University of Geoscience vakawana kuti goridhe shoma rinogona kuvharirwa.mukati pyrite, zvichiita kuti ‘ndarama yebenzi’ ive inokosha kupfuura zvinorehwa nezita racho.
Inbeparakabudiswa mujenariGeology,masayendisiti anopa kuongororwa kwakadzama kuti anzwisise zviri nani nzvimbo ye mineralogical yegoridhe rakabatwa mupyrite.Ongororo iyi - ivo vanotenda - inogona kutungamira kune dzimwe nzira dzekuchera goridhe dzine hushamwari.
Maererano neboka iri, rudzi rutsva urwu rwegoridhe 'risingaoneki' harisati razivikanwa uye rinongoonekwa pachishandiswa chiridzwa chesainzi chinonzi atomu probe.
Kare vacheri vegoridhe vaikwanisa kuwana goridhe mukatipyriteingave senanoparticles kana seye pyrite-goridhe alloy, asi zvatakaona ndezvekuti goridhe rinogona zvakare kugashirwa mune nanoscale crystal defects, inomiririra rudzi rutsva rwe 'asingaoneki' goridhe, "anotungamirira muongorori Denis Fougerous akadaro mune nhepfenyuro.
Sekureva kwaFougerous, kana kristaro yanyanya kuremara, ndipo panobva pavharwa goridhe rakawanda.
Musayendisiti akatsanangura kuti goridhe rinoiswa mune nanoscale defects inonzi dislocations - diki zvakapetwa kazana nezviuru pane kufara kwebvudzi remunhu - uye ichi ndicho chikonzero ichikwanisa kungoonekwa pachishandiswa atomu probe tomography.
Zvichitevera kuwanikwa kwavo, Fougerous nevamwe vake vakafunga kutsvaga nzira yakavabvumira kuburitsa simbi yakakosha vachishandisa simba shoma pane tsika dzechinyakare dzekumanikidza oxidizing.
Kusarudza leaching, iyo inosanganisira kushandisa mvura yekunyungudutsa goridhe kubva papyrite, yaiita seyakanakisa sarudzo.
"Hakusi chete kuti kunyungudutswa kunoteya goridhe, asi kunoitawo senzira dzemvura dzinoita kuti goridhe 'rinyuswe' pasina kukanganisa pyrite yese," muongorori akadaro.
Nguva yekutumira: Jun-29-2021