Muna 1877, Fremi, nyanzvi yekemisitiri yekuFrance, akashandisa pure alumina poda, potassium carbonate, barium fluoride uye shoma shoma ye potassium bichromate sezvigadzirwa.Mushure memazuva masere ekupisa kwepamusoro kunyunguduka mu crucible, makristasi maduku eruby akawanikwa, iyo yaiva kutanga kwerubhi yakagadzirwa.
Muna 1900, masayendisiti akashandisa aluminium oxide mushure mekunyunguduka zvishoma zvechromium oxide, Cr2O3, maererano nehuwandu hwehuremu hwe 0. Ne 7% yakawedzerwa nzira, 2g ~ 4g rubies yakagadzirwa.Nhasi, rubhi nesafiro zvakakura semagiramu gumi anogona kugadzirwa.
Muna 1885, mamwe marubhi emhando yepamusoro akaonekwa muGeneva, Switzerland.Zvinonzi kune zvakasikwa ruby zvimedu, pamwe tsvuku potassium dichromate uye kumwe kupisa kwepamusoro kunyunguduka kwakaitwa, uye hunhu hwezvigadzirwa zvechisikigo.Nekudaro, yaive kemisiti wechiFrench Verneuil ndiye akagadzira dombo uye akariisa mukugadzirwa kwakakura.
Muna 1891, Verneuer akagadzira nzira yekunyunguduka kwemurazvo uye akaishandisa kugadzira matombo anokosha.Mushure mekubudirira, akaedza nealumina yakachena.Muedzo wakaitwa mukupisa kwakanyanya Muffle vira ine inverted hydrogen uye oxygen blower pombi.Hupfu hwakatsetseka hwealumina yakachena ine hushoma hwechromium oxide yakadonhedzwa zvishoma nezvishoma mumurazvo ndokunyunguduka, ichidonhera pachigadziko kuti inyunguduke uye kupenya.Pashure pemakore gumi ekushanda nesimba.
Artificial rubies akagadzirwa naVernayet muna 1904, uye kubva ipapo murazvo wekunyunguduka wakave wakakwana kuti ubudise marubhi anenge asingazivikanwe kubva kune echisikigo.Iyi nzira yakashandiswa kusvika panguva dzemazuva ano uye ichiri nzira huru yekugadzira matombo anokosha munyika, anozivikanwa se "Verneuil method".Ikozvino zvinongotora maawa mashoma kugadzira anopfuura 100 carats ematombo eruby mbishi, artificial corundum crystals ane chitarisiko chepear shape kana carrot shape, pure texture, color transparency even more than natural products, and great economic benefits.Nzira yemazuva ano yeVerneuil haingobudisi rubies kubva kune yakatsvuka kusvika kune yakatsvuka yakadzika, asiwo masafiro emarudzi akasiyana-siyana, uye kunyange rubies nesafiro ane starlight.Chishamiso.
Nguva yekutumira: Kubvumbi-11-2023