Extraction ntawmTus phab ntsa
Tus phab ntsaZoo li ib daim Tin nyob rau hauv chav tsev kub, thiab yog tias koj xav tuav nws hauv koj xib teg, nws tam sim ntawd melts rau hauv cov nyiaj hlaws. Ameslikas, lub ntsiab lus melting ntawm gallium yog tsawg heev, tsuas yog 29.8c. Txawm hais tias lub ntsiab lus melting ntawm gallium yog tsawg heev, nws qhov cub npau npau yog heev, ncav kom siab li 2070c. Cov neeg siv cov khoom ntawm gallium los tsim cov kub ntsuas rau ntsuas ntsuas kub siab. Cov thermometers no tau muab tso rau hauv cov raging steel ua kom sov, thiab lub iav plhaub yog yuav luag yaj. Lub gallium sab hauv tseem tsis tau rhaub. Yog tias cov ntsuas kub siab yog siv los tsim lub plhaub ntawm tus pas ntsuas kub, nws tuaj yeem ntsuas qhov ntsuas kub txuas ntxiv ntawm 1500c. Yog li, tib neeg feem ntau siv hom ntsuas kub no los ntsuas qhov ntsuas kub ntawm cov tshuaj tiv thaiv refaces thiab atomic reactors.
Gallium muaj zoo casting cov khoom, thiab vim nws "kub shrinkage thiab txias nthuav dav", nws yog siv los tsim cov khoom txhuas, ua kom meej. Nyob rau hauv lub atomic zog kev lag luam, gallium yog siv los ua cov cua sov hloov nruab nrab hloov cov cua sov los ntawm cov reactors. Gualium thiab ntau hlau, xws li bismuth, txhuas, cadmium, thiab lwm yam, daim ntawv fusible alloy nrog lub taw tes melted qis dua 60c. Ntawm lawv, Gallium Steel Alloy muaj 25% (Melting point 16c) thiab Gallium Tin alloy muaj nyob rau hauv Circuit Court 20C) tuaj yeem siv hauv Circuit Court Fuses thiab ntau yam kev nyab xeeb khoom. Sai li qhov ntsuas kub yog siab, lawv yuav cia li yaj thiab disconnect, ua si ib lub luag haujlwm nyab xeeb.
Hauv kev koom tes nrog iav, nws muaj cov nyhuv ntawm kev txhim kho qhov ntsuas hluav taws xob kom tsis txhob siv cov iav tshwj xeeb kho tshiab. Vim tias gallium muaj lub zog muaj zog tshwj xeeb los cuam tshuam lub teeb thiab tuaj yeem ua kom zoo rau iav, nrog rau kev siv ntau dua, nws yog qhov tsim nyog rau kev siv ua ib lub reaffor. Gallium tsom iav tuaj yeem sib haum rov qab ntau dua 70% ntawm lub teeb emitted.
Qee cov tebchaw ntawm gallium yog tam sim no inextricably ua rau txiav-edge science thiab thev naus laus zis. Gallium arsenide yog ib qho tshiab nrhiav tau semiconductor cov khoom siv nrog kev ua tau zoo heev nyob rau xyoo tas los no. Siv nws ua hluav taws xob hluav taws xob tuaj yeem txo qis cov ntim ntawm cov khoom siv hluav taws xob thiab ua tiav miniaturization. Cov neeg kuj tau ua lasers siv gallium arsenide raws li kev tivthaiv raws li kev sib xyaw, uas yog hom tshiab ntawm laser nrog kev ua haujlwm siab thiab loj me. Gallium thiab phosphorus tebchaw - gallium phosphide - gallium phosphide yog lub teeb ci ntsa iab uas muaj peev xwm emit liab lossis ntsuab teeb. Nws tau ua rau hauv ntau tus kws txheeb cais ib txwm muaj thiab siv rau cov khoos phis tawm hauv hluav taws xob kom tso cov txiaj ntsig xam xam.
Lub Sijhawm Post: Lub Tsib Hlis-16-2023