Alumina hmoov: hmoov khawv koob los txhim kho kev ua haujlwm ntawm cov khoom
Hauv lub hoobkas ua haujlwm, Lao Li txhawj txog ib pawg khoom uas nyob ntawm nws xub ntiag: tom qab tua cov khoom nocov khoom siv ceramic, yeej ib txwm muaj cov kab nrib me me ntawm qhov chaw, thiab txawm tias qhov kub ntawm lub qhov cub raug kho li cas los xij, nws tsis muaj txiaj ntsig dab tsi. Lao Wang tuaj txog, saib nws ib pliag, thiab khaws ib lub hnab hmoov dawb ntawm tes: "Sim ntxiv qee qhov no, Lao Li, tej zaum nws yuav ua haujlwm." Lao Wang yog tus kws tshaj lij hauv lub Hoobkas. Nws tsis tham ntau, tab sis nws ib txwm nyiam xav txog ntau yam khoom siv tshiab. Lao Li coj lub hnab tsis muaj lub siab xav, thiab pom tias daim ntawv lo hais tias "hmoov alumina".
Alumina hmoovLub npe no zoo li ib txwm muaj, ib yam li cov hmoov dawb hauv chav kuaj mob. Ua li cas nws thiaj li yog "hmoov khawv koob" uas daws tau cov teeb meem nyuaj? Tab sis Lao Wang taw tes rau nws nrog kev ntseeg siab thiab hais tias: "Tsis txhob saib tsis taus nws. Nrog nws lub peev xwm, nws yeej daws tau ntau yam mob taub hau."
Vim li cas Lao Wang thiaj li nyiam cov hmoov dawb uas tsis pom tseeb no heev? Qhov laj thawj yog qhov yooj yim xwb - thaum peb hloov tsis tau tag nrho lub ntiaj teb khoom siv, peb yuav sim ntxiv qee cov "hmoov khawv koob" los hloov qhov kev ua tau zoo tseem ceeb. Piv txwv li, thaum cov khoom siv ceramic ib txwm tsis tawv txaus thiab yooj yim tawg; cov hlau tsis tiv taus kev oxidation kub siab; thiab cov yas muaj kev coj ua thermal tsis zoo, cov hmoov alumina maj mam tshwm sim thiab dhau los ua "lub pob zeb tseem ceeb" los daws cov teeb meem tseem ceeb no.
Lao Wang tau ntsib teeb meem zoo sib xws. Xyoo ntawd, nws yog tus saib xyuas ib qho khoom siv ceramic tshwj xeeb uas yuav tsum tau ua kom nws tawv, tawv, thiab tiv taus kub heev.Cov ntaub ntawv ceramic ib txwm muajraug hlawv, thiab lub zog txaus, tab sis lawv yuav tawg yooj yim thaum kov, zoo li ib daim iav tawg yooj yim. Nws coj nws pab neeg mus nyiaj ntau hnub thiab hmo ntuj hauv chav kuaj mob, kho cov mis thiab hlawv lub qhov cub tom qab lub qhov cub, tab sis qhov tshwm sim yog tias lub zog tsis txog tus qauv lossis qhov tawg yooj yim siab dhau, ib txwm tawm tsam ntawm ntug ntawm qhov tawg yooj yim.
"Cov hnub ntawd ua rau kuv lub hlwb kub hnyiab heev, thiab kuv cov plaub hau poob ntau heev." Lao Wang tom qab ntawd rov qab hais dua. Thaum kawg, lawv tau sim ntxiv ib feem tshwj xeeb ntawm cov hmoov alumina uas muaj cov khoom siv siab uas tau ua tiav rau hauv cov khoom siv ceramic. Thaum lub qhov cub qhib dua, muaj ib qho txuj ci tseem ceeb tshwm sim: cov khoom siv ceramic tshiab uas raug hlawv ua lub suab tob thiab zoo thaum khob. Thaum sim tsoo nws nrog lub zog, nws tiv taus lub zog thiab tsis tawg yooj yim - cov alumina tau sib npaug hauv lub matrix, zoo li yog ib lub network khov kho uas tsis pom tau raug woven sab hauv, uas tsis tsuas yog txhim kho qhov nyuaj xwb, tab sis kuj tseem nqus tau lub zog cuam tshuam ntsiag to, txhim kho qhov brittleness zoo heev.
Vim li casalumina hmoovmuaj "khawv koob" zoo li no? Lao Wang kos ib daim me me rau ntawm daim ntawv: "Saib seb, daim me me alumina no muaj qhov tawv heev, sib piv rau sapphire ntuj, thiab tiv taus kev hnav zoo tshaj plaws." Nws nres ib pliag, "Qhov tseem ceeb tshaj plaws, nws tiv taus qhov kub siab, thiab nws cov khoom siv tshuaj lom neeg ruaj khov zoo li Mount Tai. Nws tsis hloov nws qhov xwm txheej hauv hluav taws kub siab, thiab nws tsis yooj yim khoov nws lub taub hau hauv cov kua qaub thiab alkalis muaj zog. Tsis tas li ntawd, nws kuj yog tus coj cua sov zoo, thiab cua sov khiav ceev heev hauv nws."
Thaum cov yam ntxwv zoo li ywj pheej no tau raug qhia meej rau hauv lwm cov ntaub ntawv, nws zoo li tig pob zeb mus ua kub. Piv txwv li, ntxiv nws rau hauv cov khoom siv ceramics tuaj yeem txhim kho lub zog thiab kev tawv ntawm cov khoom siv ceramics; kev qhia nws rau hauv cov khoom siv hlau sib xyaw ua ke tuaj yeem txhim kho lawv qhov kev tiv taus hnav thiab muaj peev xwm tiv taus qhov kub siab; txawm tias ntxiv nws rau hauv lub ntiaj teb yas tuaj yeem tso cai rau cov yas kom sai sai coj cua sov mus.
Hauv kev lag luam hluav taws xob,alumina hmoovkuj ua "khawv koob". Niaj hnub no, lub xov tooj ntawm tes lossis lub khoos phis tawj laptop twg tsis txhawj txog qhov cua sov sab hauv thaum lub sijhawm ua haujlwm? Yog tias qhov cua sov tsim los ntawm cov khoom siv hluav taws xob precision tsis tuaj yeem dissipated sai, qhov kev ua haujlwm yuav qeeb ntawm qhov zoo tshaj plaws, thiab lub nti yuav raug puas tsuaj ntawm qhov phem tshaj plaws. Cov kws ua haujlwm ntse sau cov hmoov alumina thermal conductivity siab rau hauv cov silicone thermal conductive tshwj xeeb lossis cov yas engineering. Cov ntaub ntawv no muaj cov hmoov alumina tau txuas nrog cov khoom tseem ceeb ntawm lub zog tsim cua sov, zoo li "kev kub thermal conduction txoj kev", uas sai thiab ua tau zoo coj cov cua sov nce siab ntawm lub nti mus rau lub plhaub cua sov dissipation. Cov ntaub ntawv xeem qhia tau hais tias nyob rau hauv tib qho xwm txheej, qhov kub ntawm cov khoom siv siv cov khoom siv thermal conductive uas muaj cov hmoov alumina tuaj yeem txo qis ntau dua kaum lossis txawm tias kaum ob degrees piv rau cov ntaub ntawv ib txwm muaj, kom ntseeg tau tias cov khoom siv tseem tuaj yeem khiav tau zoo thiab ruaj khov nyob rau hauv cov txiaj ntsig zoo.
Lao Wang feem ntau hais tias: "Lub 'khawv koob' tiag tiag tsis yog nyob rau hauv cov hmoov nws tus kheej, tab sis nyob rau hauv peb txoj kev nkag siab txog qhov teeb meem thiab nrhiav qhov tseem ceeb uas tuaj yeem siv qhov kev ua tau zoo." Lub peev xwm ntawm alumina hmoov tsis yog tsim los ntawm tsis muaj dab tsi, tab sis los ntawm nws tus kheej cov yam ntxwv zoo tshaj plaws, thiab tau koom ua ke rau hauv lwm cov ntaub ntawv, yog li nws tuaj yeem siv nws lub zog ntsiag to thaum lub sijhawm tseem ceeb thiab tig kev lwj mus ua khawv koob.
Thaum tsaus ntuj nti, Lao Wang tseem tab tom kawm cov qauv khoom tshiab hauv chaw ua haujlwm, thiab lub teeb ci ntsa iab rau nws lub cev. Nws ntsiag to sab nraum lub qhov rais, tsuas yogalumina hmoov Hauv nws txhais tes muaj ib lub teeb dawb me me ci ntsa iab hauv qab lub teeb, zoo li ntau lub hnub qub me me. Cov hmoov zoo li qub no tau muab ntau txoj haujlwm sib txawv hauv ntau hmo zoo sib xws, sib xyaw ua ke ntsiag to rau hauv ntau yam khoom siv, txhawb nqa cov plag tsev tawv dua thiab tiv taus kev hnav, ua kom ntseeg tau tias cov khoom siv hluav taws xob raug cai ua haujlwm ntev thiab nyob ntsiag to, thiab tiv thaiv kev ntseeg tau ntawm cov khoom tshwj xeeb hauv qhov chaw kub heev. Qhov tseem ceeb ntawm kev tshawb fawb txog cov ntaub ntawv yog nyob rau hauv yuav ua li cas siv lub peev xwm ntawm cov khoom ib txwm muaj thiab ua rau lawv ua lub hauv paus tseem ceeb rau kev tawg los ntawm cov teeb meem thiab txhim kho kev ua haujlwm zoo.
Lub sijhawm tom ntej koj ntsib teeb meem hauv kev ua haujlwm ntawm cov khoom siv, nug koj tus kheej: Koj puas muaj ib daim "hmoov alumina" uas tos kom sawv los tsim lub sijhawm tseem ceeb ntawd? Xav txog nws, qhov no puas yog qhov tseeb?