Extraction ntawmGallium
Galliumzoo li ib daim ntawm tin nyob rau hauv chav tsev kub, thiab yog hais tias koj xav tuav nws nyob rau hauv koj xibtes, nws tam sim ntawd melts mus rau hauv nyiaj hlaws dai. Keeb kwm, lub melting point ntawm gallium yog tsawg heev, tsuas yog 29.8C. Txawm hais tias lub melting point ntawm gallium yog tsawg heev, nws cov boiling point yog siab heev, ncav cuag li 2070C. Cov neeg siv cov khoom ntawm gallium los tsim cov ntsuas kub rau ntsuas kub. Cov ntsuas kub no tau muab tso rau hauv lub tshuab hluav taws xob ua kom sov, thiab lub plhaub iav yuav luag yaj. Lub gallium sab hauv tseem tsis tau boiled. Yog tias qhov kub-kub quartz iav siv los tsim lub plhaub ntawm tus pas ntsuas kub gallium, nws tuaj yeem ntsuas qhov kub ntawm 1500C. Yog li, tib neeg feem ntau siv hom ntsuas kub no los ntsuas qhov ntsuas kub ntawm cov tshuaj tiv thaiv furnaces thiab atomic reactors.
Gallium muaj cov khoom zoo casting, thiab vim nws "kub shrinkage thiab txias expansion", nws yog siv los tsim cov hlau lead alloys, ua kom pom tseeb. Hauv kev lag luam atomic zog, gallium yog siv los ua cov cua sov hloov nruab nrab kom hloov cov cua sov los ntawm cov reactors. Gallium thiab ntau cov hlau, xws li bismuth, lead, tin, cadmium, thiab lwm yam, tsim fusible alloy nrog lub melting point qis dua 60C. Ntawm lawv, gallium hlau alloy uas muaj 25% (melting point 16C) thiab gallium tin alloy muaj 8% tin (melting point 20C) tuaj yeem siv rau hauv Circuit Court fuses thiab ntau yam khoom siv kev nyab xeeb. Sai li qhov kub thiab txias, lawv yuav cia li yaj thiab txiav, ua lub luag haujlwm kev nyab xeeb.
Hauv kev koom tes nrog iav, nws muaj cov txiaj ntsig ntawm kev txhim kho qhov ntsuas qhov ntsuas ntawm iav thiab tuaj yeem siv los tsim cov iav tshwj xeeb kho qhov muag. Vim tias gallium muaj lub peev xwm tshwj xeeb muaj peev xwm los cuam tshuam lub teeb thiab tuaj yeem ua raws li iav zoo, tiv taus qhov kub thiab txias, nws yog qhov tsim nyog rau kev siv los ua lub teeb pom kev zoo. Gallium iav tuaj yeem cuam tshuam rov qab ntau dua 70% ntawm lub teeb tawm.
Qee qhov sib txuas ntawm gallium tam sim no inextricably khi rau kev tshawb fawb thiab thev naus laus zis. Gallium arsenide yog cov khoom siv semiconductor uas tau tshawb pom tshiab nrog kev ua tau zoo hauv xyoo tas los no. Siv nws los ua ib qho khoom siv hluav taws xob tuaj yeem txo qhov ntim ntawm cov khoom siv hluav taws xob thiab ua kom tiav miniaturization. Tib neeg kuj tau ua lasers siv gallium arsenide ua ib feem, uas yog ib hom tshiab ntawm laser nrog high efficiency thiab me me. Gallium thiab phosphorus compounds - Gallium phosphide yog ib qho khoom siv hluav taws xob semiconductor uas tuaj yeem tawm teeb liab lossis ntsuab. Nws tau raug ua rau ntau hom lus Arabic thiab siv hauv tshuab hluav taws xob los tso saib cov txiaj ntsig suav.
Post lub sij hawm: May-16-2023