Pāpala Sapphire
wehewehe
ʻO Sapphire (Al2O3) hoʻokahi aniani kahi mea hana multifunctional maikaʻi loa.Loaʻa iā ia ke kūpaʻa wela kiʻekiʻe, ka hoʻokele wela maikaʻi, ka paʻakikī kiʻekiʻe, ka hoʻouna ʻana i ka infrared a me ke kūpaʻa kemika maikaʻi.Hoʻohana nui ʻia ia i nā ʻoihana he nui, ka pale aupuni a me ka noiʻi ʻepekema (e like me ka puka aniani infrared kiʻekiʻe).I ka manawa like, he ʻano mea hoʻohana nui ʻia ka substrate kristal hoʻokahi.ʻO ia ka substrate koho mua i ka ʻoihana uliuli, violet, keʻokeʻo keʻokeʻo-emitting diode (LED) a me ka blue laser (LD) ʻoihana (pono ke kiʻi ʻoniʻoni gallium nitride e epitaxial ma ka substrate sapphire ma mua), a he mea nui hoʻi ia i ka superconducting. pani kiʻiʻoniʻoni.Ma waho aʻe o ka Y-system, La system a me nā kiʻi ʻoniʻoni superconducting kiʻekiʻe, hiki ke hoʻohana ʻia e ulu i nā kiʻiʻoniʻoni superconducting MgB2 (magnesium diboride) hou (ʻo ka mea maʻamau e hoʻoheheʻe ʻia ka substrate hoʻokahi-crystal i ka wā o ka hana ʻana o MgB2. nā kiʻiʻoniʻoni).
Waiwai
| Maemae Crystal | > 99.99% |
| Lae hehee (℃) | 2040 |
| ʻO ka mānoanoa（g/cm3） | 3.98 |
| Paʻakiki (Mho) | 9 |
| Hoʻonui wela | 7.5 (x10-6/oC) |
| Wela Kūikawā | 0.10 ( kaila /oC) |
| ʻO ka hoʻoili wela | 46.06 @ 0oC 25.12 @ 100oC, 12.56 @ 400oC ( W/(mK) ) |
| Dielectric mau | ~ 9.4 @300K ma A axis ~ 11.58@ 300K ma C axis |
| Nani poho ma 10 GHz | < 2x10-5ma A axis , <5 x10-5ma C axis |
ʻO ka wehewehe ʻana o ka substrate Sapphire
ʻO ka substrate Sapphire e pili ana i kahi mea aniani aniani i hana ʻia me ka alumini alumini oxide (Al2O3).Hoʻohana pinepine ʻia ka huaʻōlelo "sapphire" e wehewehe i nā ʻano pōhaku corundum, ʻo ia ka mea maʻamau i ka uliuli.Eia nō naʻe, ma ke ʻano o nā substrates, pili ka sapphire i kahi aniani i ulu ʻia, kala ʻole, hoʻomaʻemaʻe kiʻekiʻe i hoʻohana ʻia i nā ʻano hana like ʻole.Eia kekahi mau mea nui e pili ana i nā substrate sapphire:
1. ʻO ka hana aniani: ʻO ka Sapphire he hale aniani hexagonal kahi i hoʻonohonoho pinepine ʻia ai nā ʻātoma alumini a me nā ʻātoma oxygen.Aia ia i ka ʻōnaehana kristal trigonal.
2. ʻO ka paʻakikī kiʻekiʻe: ʻO Sapphire kekahi o nā mea paʻakikī loa i ʻike ʻia, me ka paʻakikī o Mohs o 9. ʻO ia ka mea e ʻoi loa ai ka ʻōpala a me ka pale ʻana i ka abrasion, e hāʻawi ana i kona kūpaʻa a me ka lōʻihi o ka noi.
3. Hoʻouna māmā: ʻO ka Sapphire ka hoʻouna māmā maikaʻi loa, ʻoi aku ma nā wahi ʻike ʻia a kokoke i ka infrared.Hiki iā ia ke hoʻouna i ka mālamalama mai kahi o 180 nm a i 5500 nm, e kūpono ana i kahi ākea o nā noi optical a me optoelectronic.
4. Nā waiwai wela a me nā mīkini: He mau mea wela a me mechanical maikaʻi ka Sapphire, kahi hoʻoheheʻe kiʻekiʻe, haʻahaʻa haʻahaʻa hoʻonui hoʻonui, a me ka maikaʻi o ka wela.Hiki iā ia ke pale i nā wela kiʻekiʻe, ke koʻikoʻi mechanical a me ke kaʻa kaʻa wela, e kūpono ia no ka wela kiʻekiʻe a me nā noi mana kiʻekiʻe.
5. Paʻa kemika: Loaʻa i ka Sapphire ke kūpaʻa kemika kiʻekiʻe a hiki ke pale aku i ka hapa nui o nā waikawa, alkalis a me nā mea hoʻoheheʻe organik.Mālama kēia hiʻohiʻona i kona lōʻihi a me ka hilinaʻi i nā ʻano ʻino like ʻole.
6. Nā waiwai hoʻoheheʻe uila: ʻO Sapphire kahi mea hoʻolale uila maikaʻi loa, he mea maikaʻi ia no nā noi e koi ana i ka hoʻokaʻawale uila a i ʻole ka insulation.
7. Hoʻohana: Hoʻohana nui ʻia nā substrates Sapphire i nā optoelectronics, semiconductors, light-emitting diodes, laser diodes, optical windows, watch crystals a me ka noiʻi ʻepekema.
Hoʻohanohano nui ʻia nā substrate Sapphire no kā lākou hui pū ʻana o ka optical, mechanical, thermal and chemical properties.ʻO kāna mau waiwai koʻikoʻi e kūpono i nā noi noi e koi ana i ka lōʻihi kiʻekiʻe, ka mālamalama optical kiʻekiʻe, ka insulation uila a me ke kū'ē i nā mea kaiapuni.
