Synthetic Alexandrite - Czochralski

Gemstone Info

Gemstone Nqe Lus

Synthetic Alexandrite

Yuav cov gemstones hauv ntuj hauv peb lub khw


Alexandrite yog ib lub pob zeb zoo nkauj tshaj plaws. Lub ntsiab sib txawv ntawm alexandrite thiab lwm yam gemstones lus dag hauv nws lub peev xwm hloov xim nyob ntawm lub teeb ntawm ambient. Alexandrite muaj xim xiav-ntsuab los yog nyom-ntsuab xim thaum siv hluav taws xob ua kom pom tseeb, tab sis muaj xim liab los yog ruby-liab hauv tshav ntuj los yog tswm ciab. Qhov no yog hu ua phenomenon alexandrite, thiab feem ntau yog siv nrog lwm cov zaub mov uas muaj peev xwm hloov xim. Piv txwv, garnets, uas muaj peev xwm hloov xim, tseem hu ua garnets nrog alexandrite nyhuv.

Alexandrite yog ntau yam ntawm cov pob zeb chrysoberyl. Qhov txawv txav xim txawv txav yog vim muaj cov chromium ions nyob rau hauv lub kwj cab siv lead ua. Tam sim no, natural alexandrite yog lees paub tias yog ib qho ntawm cov feem ntau zoo nkauj thiab tsis tshua muaj gems. Tau kawg, qhov no coj mus rau qhov kev pom ntawm cov khoom nyob rau hauv kev ua lag luam, uas tsuas yog zoo ib yam li lub pob zeb qub thaum lawv tsis pom qhov zoo xim hloov nyhuv thiab lub teeb ua si hauv natural alexandrite. Corundum kev tsis txaus siab yog qhov ntau heev.

Czochralski txheej txheem (rub)

Cov txheej txheem ntawm Czochralski yog ib txoj hauv kev siv lead ua siv los ua kom tau ib leeg kheej ntawm cov thaij duab (xws li silicon, germanium thiab gallium arsenide), cov hlau (xws li palladium, platinum, nyiaj, kub), ntsev thiab cov khoom siv hluavtaws. Tus txheej txheem yog hu ua Polish tus kws tshawb fawb Jan Czochralski, leej twg tau tsim cov qauv hauv 1915 thaum tab tom tshawb nrhiav cov nqi ntawm cov co. Nws ua qhov kev tshawb nrhiav ntawm kev sib tsoo, thaum nws kawm cov suab paj nruag thaum uas tsis sib haum, tsis yog siv nws lub cwj mem rau hauv tus cwj mem, nws ua li ntawd nyob rau hauv cov roj hmab tin thiab kos ib lub tin filament, uas tom qab muaj pov thawj ua ib zaug xwb siv lead ua.

Cov ntaub ntawv tseem ceeb tshaj plaws yog qhov kev loj hlob ntawm cov pob cylindrical loj loj, los yog cov pob khoom, cov khoom siv silicon uas siv hauv tshuab hluav taws xob kom ua rau cov khoom siv hluav taws xob zoo sib xws. Lwm yam khoom siv, xws li gallium arsenide, tuaj yeem raug zus los ntawm hom no, tab sis qis dua qhov teeb meem ntom nti ntawm qhov no yuav raug siv tau cov kev siv ntawm Bridgman-Stockbarger cov txheej txheem.

Synthetic Alexandrite - Czochralski
Tshuaj formula: BeAl2O4: Cr3 +
Crystal cev: Rhombic
Hardness (Mohs): 8.5
Ceev: 3.7
Refractive Performance index: 1.741-1.75
Dispersion: 0.015
Cov Txwj Laus (Inclusions): Cov nqe lus dawb xwb. (tseem ceeb ntawm ntuj Alexandrite: Phom, cov kab nrib pleb, qhov, ntau theem ntawm cov thawv, quartz, biotite, fluorite)


Yuav cov gemstones hauv ntuj hauv peb lub khw

kev ua yuam kev: Cov ntsiab lus yog kev tiv thaiv !!