Synthetic Alexandrite - Weluliwe - Czochralski - Crystal Rise - Ividiyo
Okuqukethwe:
I-Alexandrite ingenye yamatshe amangalisa kakhulu.
Thenga amatshe ayigugu emvelo esitolo sethu samatshe ayigugu
i-alexandrite yokwenziwa
Umehluko omkhulu phakathi kwe-alexandrite namanye amatshe ayigugu yikhono layo eliyingqayizivele lokushintsha umbala kuye ngokukhanya okuzungezile. I-Alexandrite inombala oluhlaza okwesibhakabhaka noma oluhlaza okotshani lapho kusetshenziswa ukukhanyisa okumhlophe kokufakelwa kwe-fluorescent, kodwa ijika ibe nsomi noma i-ruby ibomvu ekukhanyeni kwelanga noma ekhandleleni.
Lesi simo sibizwa ngokuthi umphumela we-alexandrite futhi sivame ukusetshenziswa namanye amaminerali angashintsha umbala. Isibonelo, ama-garnet angashintsha umbala abizwa nangokuthi ama-alexandrite garnet.
I-Alexandrite iyinhlobonhlobo ye-chrysoberyl yamaminerali. Umphumela ongavamile wokushintsha umbala kungenxa yokuba khona kwama-ion e-chromium ku-crystal lattice. Njengamanje, i-alexandrite yemvelo ibhekwa njengenye yamatshe ayigugu amahle kakhulu futhi ayivelakancane.
Yiqiniso, lokhu kuye kwaholela ekubeni ama-fake avele emakethe afana kancane netshe langempela, njengoba engabonakali umphumela omuhle wokushintsha umbala kanye nokudlala kokukhanya ngaphakathi kwe-alexandrite yemvelo. Ama-Corundum fake avame kakhulu.
Inqubo ye-Czochralski (ikhishwe)
Inqubo ye-Czochralski iyindlela yokukhula kwekristalu esetshenziselwa ukukhiqiza ikristalu eyodwa yama-semiconductors (isb. i-silicon, i-germanium ne-gallium arsenide), izinsimbi (isb. i-palladium, iplatinum, isiliva, igolide), usawoti kanye namatshe ayigugu okwenziwa. Le nqubo iqanjwe ngososayensi wasePoland u-Jan Czochralski, owasungula le ndlela ngo-1915 ngenkathi efunda izinga lokucwebezela kwezinsimbi.
Lokhu wakuthola ngenhlanhla, ngesikhathi ephenya izinga lokucwebezeliswa kwezinsimbi, lapho esikhundleni sokucwilisa ipeni kuyinki, wakwenza lokho othanini oluncibilikisiwe futhi walandelela intambo kathayela, kamuva okwaba yikristalu eyodwa.
Isicelo esibaluleke kakhulu singase sibe ukukhula kwama-ingots amakhulu angama-cylindrical noma ama-sphere e-silicon eyodwa ye-crystal esetshenziswa embonini ye-electronics ukukhiqiza amadivaysi e-semiconductor njengama-circuits ahlanganisiwe.
Amanye ama-semiconductors afana ne-gallium arsenide nawo angakhuliswa ngale ndlela, nakuba ukuminyana kokukhubazeka okuphansi kulokhu kungatholwa kusetshenziswa okuhlukile kwendlela ye-Bridgman-Stockbarger.
I-alexandrite yokwenziwa - Czochralski
Ifomula: BeAl2O4:Cr3+
I-Crystal system: i-orthorhombic
Ukuqina (Mohs): 8.5
Ukuminyana: 3.7
Inkomba ye-Refractive: 1.741-1.75
Ukuhlakazeka: 0.015
Kufakiwe: ukudla kwamahhala. (ukukhethwa kokhiye ku-alexrite yemvelo: inkungu, imifantu, izimbobo, i-multiphase inclusions, i-quartz, i-biotite, i-fluorite)
shiya impendulo