ʻO Alexandrite Synthetic - Hoʻolahalaha - Czochralski - Hoʻokiʻekiʻe Crystal - Video
Nā mea:
ʻO Alexandrite kekahi o nā pōhaku kupanaha loa.
E kūʻai i nā pōhaku makamae ma kā mākou hale kūʻai pōhaku
synthetic alexandrite
ʻO ka ʻokoʻa nui ma waena o alexandrite a me nā pōhaku makamae ʻē aʻe kona hiki ke hoʻololi i ke kala ma muli o ke kukui ambient. ʻO Alexandrite ka ʻōmaʻomaʻo a i ʻole ka mauʻu ʻōmaʻomaʻo ke hoʻohana ʻia nā kukui fluorescent keʻokeʻo keʻokeʻo, akā e lilo i poni a ʻulaʻula paha i ka lā a i ʻole ke kukui kukui.
Kapa ʻia kēia ʻano he hopena alexandrite a hoʻohana mau ʻia me nā minerala ʻē aʻe e hiki ke hoʻololi i ka kala. No ka laʻana, kapa ʻia nā garnets hiki ke hoʻololi i ke kala ʻo alexandrite garnets.
ʻO Alexandrite kahi ʻano o ka mineral chrysoberyl. ʻO ka hopena hoʻololi kala ʻokoʻa ma muli o ka loaʻa ʻana o nā ion chromium i loko o ka lattice kristal. I kēia manawa, ua manaʻo ʻia ʻo alexandrite maoli kekahi o nā pōhaku nani loa a loaʻa ʻole.
ʻOiaʻiʻo, ua alakaʻi kēia i nā mea hoʻopunipuni i ʻike ʻia ma ka mākeke e like wale me ka pōhaku kumu, no ka mea ʻaʻole lākou e hōʻike i ka hopena nani o ka hoʻololi kala a me ka pāʻani o ka mālamalama i loko o ka alexandrite maoli. He mea maʻamau ka Corundum fakes.
Kaʻina Czochralski (huki i waho)
ʻO ke kaʻina hana Czochralski he ala ulu aniani i hoʻohana ʻia no ka hana ʻana i nā kristal hoʻokahi o nā semiconductor (e laʻa ke silicon, germanium a me gallium arsenide), metala (e laʻa me palladium, platinum, kālā, gula), paʻakai a me nā pōhaku synthetic. Ua kapa ʻia ke kaʻina hana ma muli o ka mea ʻepekema Polani ʻo Jan Czochralski, nāna i hana i ke ʻano i ka makahiki 1915 i ka wā e aʻo ana i ka helu o ka crystallization o nā metala.
Ua ʻike ʻo ia i kēia ʻike ma ka manawa wale nō, ʻoiai ʻo ia e noiʻi ana i ka wikiwiki o ka crystallization o nā metala, ʻoiai ʻo ia ma kahi o ka hoʻopaʻa ʻana i kahi peni i loko o ka inika, ua hana ʻo ia i loko o ke tini hoʻoheheʻe ʻia a ʻimi ʻo ia i kahi kaula tin, a ma hope ua lilo ia i aniani hoʻokahi.
ʻO ka noi koʻikoʻi paha ka ulu ʻana o nā ingots cylindrical nui a i ʻole nā spheres o ka silika aniani hoʻokahi i hoʻohana ʻia i ka ʻoihana uila e hana i nā mea semiconductor e like me nā kaapuni hoʻohui.
Hiki ke hoʻoulu ʻia nā semiconductor ʻē aʻe e like me ka gallium arsenide ma kēia ʻano, ʻoiai hiki ke loaʻa i nā defect densities haʻahaʻa i kēia hihia me ka hoʻohana ʻana i nā ʻano like ʻole o ke ʻano Bridgman-Stockbarger.
Alexandrite synthetic - Czochralski
Kumu: BeAl2O4:Cr3+
Pūnaehana kristal: orthorhombic
Paʻakiki (Mohs): 8.5
Māmā: 3.7
Hōʻike hoʻohālikelike: 1.741-1.75
Puka: 0.015
Hoʻokomo ʻia: nā meaʻai manuahi. (ke koho nui mai ka alexrite maoli: nā noe, nā māwae, nā lua, nā hoʻohui multiphase, quartz, biotite, fluorite)
Waiho i ka Reply