Boron

Boron yog qhia nyob rau hauv lub sij hawm nrog lub cim B, atomic tooj 5, thiab atomic mass ntawm 10.81. Elemental boron, uas muaj semi-metallic thiab semi-conductive zog, muaj nyob rau hauv pawg 3A ntawm lub sij hawm. Boron muaj nyob rau hauv cov xwm li ob isotopes - B10 thiab B11. Feem ntau, borates muaj nyob rau hauv cov xwm txheej li B10, isotope 19.1-20.3% ntawm lub sijhawm thiab B11 isotope 79-80.9% ntawm lub sijhawm.

Elemental boron, uas tsis pom nyob rau hauv cov xwm txheej, tsim cov ntawv cog lus nrog ntau yam hlau thiab tsis yog xim hlau los tsim cov tebchaw nrog cov khoom sib txawv. Yog li ntawd, borate compounds tuaj yeem siv rau hauv ntau qhov kev lag luam sib txawv nyob ntawm qhov sib txawv ntawm cov tshuaj sib txawv. Feem ntau, boron tebchaw coj tus cwj pwm tsis yog xim hlau, tab sis cov boron ntshiab muaj hluav taws xob conductivity. Crystallized boron zoo ib yam li zoo li, muaj cov khoom siv kho qhov muag zoo li, thiab yuav luag nyuaj li pob zeb diamond. Ntshiab boron tau tshawb pom thawj zaug hauv xyoo 1808 los ntawm Fabkis chemists JL Gay - Lussac thiab Baron LJ Thenard thiab Askiv chemist H. Davy.

Lub hom phiaj yog npaj los ntawm kev sib cog lus ntawm Boron hmoov kom puv ntom. Yog li cov ntaub ntawv compacted yog xaiv tau sintered thiab tom qab ntawd tsim rau hauv cov hom phiaj xav tau.

Cov Khoom Siv Tshwj Xeeb nplua nuj yog ib qho chaw tsim khoom ntawm Sputtering Target thiab tuaj yeem tsim cov khoom siv siab huv Boron Sputtering raws li cov neeg siv khoom tshwj xeeb. Yog xav paub ntxiv, thov hu rau peb.