Cov khoom ntawm 99 feem pua alumina ceramics
Jul 07, 2022
Tso lus
99% alumina ceramic khoom hardness, siab zog, qis coefficient ntawm expansion, thiab rwb thaiv tsev, hnav tsis kam, corrosion kuj, nyob rau hauv machinery manufacturing, aerospace, precision instruments, petrochemical thiab lwm yam kev lag luam muaj ntau yam kev siv.
Alumina ceramic feem feem ntau yog tsim los ntawm isostatic nias sintering. Vim hais tias sintering feem ntau coj deformation thiab shrinkage, ntxiv xov yog feem ntau yuav tsum tau los xyuas kom meej qhov loj thiab cov duab raug ntawm qhov chaw.
Txawm li cas los xij, cov ntaub ntawv alumina ceramic feem ntau muaj cov qauv loj elastic, siab hardness, brittleness thiab muaj zog tawg rhiab heev. Yog li, qhov nyuaj machining feem ntau yog tshwm sim hauv machining hardness thiab brittleness.
Kev ua haujlwm nyuaj ntawm alumina ceramics: AL203 feem ntau muaj , , peb siv lead ua morphology, ntawm cov uas -Al203 siv lead ua morphology yog qhov ruaj khov tshaj plaws, ntawm 1300 degree I3 thiab muaju yuav luag tag nrho hloov mus rau hauv cov muaju.
Nyob rau hauv daim ntawv siv lead ua ntawm -Al203, cov atomic bonds tsim los ntawm txhuas ion thiab oxygen ion feem ntau covalent bonds, ionic bonds los yog lawv cov sib tov bonds, yog li cov interatomic binding zog yog siab heev thiab muaj zog directivity.