Pob zeb diamond tsim nrog cov tshuaj muaj zog sib txuas muaj cov khoom siv tshwj xeeb thiab elastic. Lub hardness, ntom thiab thermal conductivity ntawm pob zeb diamond yog qhov siab tshaj plaws ntawm cov ntaub ntawv paub. Pob zeb diamond tseem muaj lub siab tshaj plaws modulus ntawm elasticity ntawm txhua yam khoom. Lub coefficient ntawm kev sib txhuam ntawm cov pob zeb diamond zaj duab xis tsuas yog 0.05. Tsis tas li ntawd, pob zeb diamond muaj qhov thermal conductivity siab tshaj plaws, uas nce los ntawm ntau tshaj tsib yog tias cov pob zeb diamond zaj duab xis tau npaj siv cov isotopes ntshiab ntawm carbon. Qhov laj thawj tseem ceeb ntawm kev siv cov isotopes ntawm carbon los npaj pob zeb diamond yog kom txo cov phonon tawg ntawm pob zeb diamond. Raws li cov khoom siv superhard, pob zeb diamond zaj duab xis yog cov khoom siv zoo, uas tuaj yeem coated rau saum npoo ntawm cov cuab yeej txiav thiab pwm los txhim kho lawv lub zog nto thiab ua kom lawv lub neej ua haujlwm. Qhov qis coefficient ntawm kev sib txhuam thiab siab thermal conductivity ntawm pob zeb diamond films yuav siv tau rau high-ceev bearings rau lo lus aviation. Lub siab thermal conductivity, tsis tshua muaj coefficient ntawm kev sib txhuam thiab zoo lub teeb transmittance ntawm pob zeb diamond zaj duab xis kuj ua rau nws feem ntau siv raws li lub fairing khoom ntawm missiles.
(2) Thermal Properties thiab kev siv pob zeb diamond
Niaj hnub no, thermal conductivity ntawm hluavtaws pob zeb diamond zaj duab xis yog nyob ze rau ntawm ntuj pob zeb diamond. Vim tias nws cov thermal conductivity siab thiab siab hluav taws xob tiv taus, pob zeb diamond tuaj yeem siv los ua cov txheej txheem insulating ntawm kev sib txuas hauv hluav taws xob, nrog rau cov thermally conductive insulating txheej ntawm solid-state lasers. Tsis tas li ntawd, pob zeb diamond lub siab thermal conductivity, me me tshav kub muaj peev xwm, tshwj xeeb tshaj yog nyob rau hauv high kub thaum tshav kub dissipation nyhuv yog ib qho tseem ceeb, yog ib tug zoo heev tshav kub dab dej khoom. Nrog rau txoj kev loj hlob ntawm high thermal conductivity pob zeb diamond nyias zaj duab xis deposition technology, nws tau ua daim ntawv thov ntawm pob zeb diamond nyias zaj duab xis thermal deposition ntawm siab zog lasers, microwave li thiab integrated circuits muaj tiag.
Txawm li cas los xij, cov khoom ntawm cov duab dag pob zeb diamond sib txawv heev vim muaj cov txheej txheem kev npaj sib txawv. Piv txwv li, cov khoom siv thermal thauj khoom, uas feem ntau yog qhov sib txawv loj hauv thermal diffusivity thiab thermal conductivity. Tsis tas li ntawd, cov khoom siv pob zeb diamond zaj duab xis qhia tau hais tias muaj zog anisotropy, thiab thermal conductivity ntawm tib zaj duab xis thickness sib npaug zos rau cov zaj duab xis nto yog pom tseeb me dua qhov perpendicular rau zaj duab xis nto. Cov no yog tshwm sim los ntawm kev tswj tsis sib txawv hauv cov txheej txheem ua zaj duab xis. Nws tuaj yeem pom tau tias cov txheej txheem kev npaj ntawm pob zeb diamond nyias zaj duab xis yuav tsum tau txhim kho ntxiv kom nws qhov kev ua tau zoo tshaj plaws tau siv dav.
– Zaj lus no yog tso tawm los ntawmtshuab nqus tsev txheej tshuab manufacturersGuangdong Zhenhua
Post lub sij hawm: May-24-2024