Alumina poda: mashiripiti poda yekuvandudza mashandiro echigadzirwa
Mumusangano wefekitori, Lao Li ainetsekana nezve batch rezvigadzirwa pamberi pake: mushure mekupfura iyi batch yezvigadzirwa.ceramic substrates, pasi paigara pakatsemuka, uye pasinei nokuti tembiricha yechoto yakagadziridzwa sei, yaisabatsira. Lao Wang akauya, akaitarisa kwechinguva, ndokutora bhegi rehupfu chena padyo: "Edza kuwedzera chimwe cheizvi, Lao Li, pamwe zvichashanda." Lao Wang inyanzvi yehunyanzvi mufekitori. Haatauri zvakanyanya, asi anogara achida kufunga nezvemhando dzakasiyana siyana itsva. Lao Li akatora bhegi nehafu-mwoyo, ndokuona kuti label yaiti "alumina powder".
Alumina powder? Iri zita rinonzwika sechinhu chakajairika, kungofanana nehupfu chena murabhoritari. Inogona sei kuva "magic powder" inogona kugadzirisa matambudziko akaoma? Asi Lao Wang akanongedza pazviri nechivimbo ndokuti: “Usazvirerutsa.
Sei Lao Wang achiyemura iyi isingaonekwi chena poda zvakanyanya? Chikonzero chiri nyore-apo isu hatigone kushandura zviri nyore nyika yese, isu tinogona zvakare kuedza kuwedzera imwe "magic poda" kushandura yakakosha kuita. Semuyenzaniso, kana zvechinyakare maceramics asina kuoma zvakakwana uye ari nyore kutsemuka; simbi hadzina kumirisana nepamusoro-tembiricha oxidation; uye mapurasitiki ane hurombo hwekupisa conductivity, alumina poda chinyararire inooneka uye inova "touchstone" kugadzirisa matambudziko aya akakosha.
Lao Wang akambosangana nematambudziko akafanana. Gore iroro, aive nebasa rechikamu chakakosha checeramic chaida kuti ive yakaoma, yakaoma, uye isingachinji kune tembiricha yakakwira.Yakajairika ceramic zvinhuvanodzingwa, uye simba racho rakakwana, asi vanotsemuka zvisingaite pakubata, sechidimbu chegirazi chisina kusimba. Akatungamira boka rake kuti ritsungirire mazuva asingaverengeke nehusiku murabhoritari, achidzokorodza fomula uye honi yekupfutidza mushure memoto, asi mhedzisiro yaive yekuti simba rakanga risiri kusvika pachiyero kana brittleness yaive yakanyanya kukwirira, ichingogara ichinetsekana pamucheto wehutete.
"Mazuva iwayo aipisa uropi, uye ndakarasa bvudzi rakawanda." Lao Wang akazoyeuka. Pakupedzisira, vakaedza kuwedzera imwe chikamu chepamusoro-kuchena alumina poda yakange yakanyatsogadziriswa mu ceramic raw materials. Pakavhurwa honi zvakare, chishamiso chakaitika: zvikamu zvichangobva kupiswa zveceramic zvakaita ruzha rwakadzama uye runonakidza pakagogodzwa. Paaiedza kuipwanya nechisimba, yaipikisa simba racho zvakasimba uye isingachatyoki nyore nyore - zvidimbu zvealumina zvakapararira zvakaenzana mumatrix, sekunge inetiweki isingaoneki yakasimba yakarukwa mukati, iyo isina kungovandudza zvakanyanya kuoma, asiwo chinyararire yakabata simba rinokonzera, richivandudza zvikuru brittleness.
Sei achidaroalumina powdervane “mashiripiti” akadaro? Lao Wang akadhirowa chidimbu chidiki pabepa: "Tarisa, iyi diki alumina ine kuomarara kwakanyanya, inofananidzwa nesafire yechisikigo, uye yekutanga-kirasi kusapfeka." Akambomira kuti, “Zvinotonyanya kukosha ndezvokuti, inoshingirira tembiricha yakakwira, uye zvinhu zvayo zvemakemikari yakatsiga seGomo reTai. Haichinji hunhu hwayo mumoto unopisa zvikuru, uye haikotamise musoro wayo nyore mumaasidhi akasimba nemaalkali. Uyezve, igadziriso yakanaka yokupisa, uye kupisa kunomhanya zvikuru mukati maro.”
Kana izvi zvinoratidzika kunge zvakazvimiririra zvanyatsopinzwa mune zvimwe zvinhu, zvinoita sekushandura matombo kuita goridhe. Semuenzaniso, kuwedzera kune makeramics kunogona kuvandudza kusimba uye kuoma kwekeramics; kuisuma kune simbi-based composite zvinhu zvinogona kuwedzera zvakanyanya kusaga kwavo uye kugona kutsungirira tembiricha yakakwira; kunyange kuiwedzera kune nyika yepurasitiki inogona kubvumira mapurasitiki kuti akurumidze kuitisa kupisa kure.
Muindasitiri yemagetsi,alumina powderanoitawo “mashiripiti”. Mazuva ano, ndeipi yepamusoro-soro yefoni kana laptop komputa isinganetseki nekudziya kwemukati panguva yekushanda? Kana kupisa kunokonzerwa nemagetsi emagetsi hakugone kuparara nokukurumidza, kushanda kuchanonoka pane zvakanakisisa, uye chip ichakuvadzwa zvakanyanya. Mainjiniya anozadza nehungwaru yakakwira yekupisa conductivity alumina poda mune yakakosha thermal conductive silicone kana mapurasitiki einjiniya. Izvi zvinhu zvine alumina poda zvakanamirwa zvakanamirwa kune epakati zvikamu zvechizvarwa chekupisa, senge yakavimbika "thermal conduction highway", iyo inokurumidza uye nemazvo inotungamira kupisa kuri kupisa pa chip kugoko rekupisa kupisa. Test data inoratidza kuti pasi pemamiriro akafanana, iyo yakakosha tembiricha yezvigadzirwa zvinoshandisa thermal conductive zvinhu zvine alumina poda inogona kudzikiswa zvakanyanya neanopfuura gumi kana kunyange gumi nemaviri edhigirii zvichienzaniswa neyakajairwa zvinhu, kuve nechokwadi chekuti michina inogona kuramba ichimhanya zvakadzikama uye zvakadzikama pasi pesimba rekuita.
Lao Wang aiwanzoti: "Mashiripiti" chaiwo haasi muupfu pachawo, asi mumanzwisisiro atinoita dambudziko uye kuwana pfungwa inokosha inogona kuwedzera kushanda." Iko kugona kwealuminium poda haina kusikwa kubva pasina, asi kunobva kune yayo yakasarudzika midziyo, uye yakanyatsobatanidzwa mune zvimwe zvinhu, kuitira kuti igone kuita chinyararire simba rayo panguva yakaoma uye kushandura kuora kuita mashiripiti.
Husiku, Lao Wang aive achiri kudzidza mafomula matsva muhofisi, uye mwenje wairatidza chimiro chake chaakatarisisa. Kunze kwefafitera kwakanga kwakanyarara, kwaingova chetealumina powder muruoko rwake makanga muchipenya kuchena kusina kusimba pasi pechiedza, senyeredzi duku dzisingaverengeki. Iyi inoratidzika sehupfu yakapihwa mishoni dzakasiyana muhusiku husingaverengeki hwakafanana, ichibatanidza chinyararire mumidziyo yakasiyana-siyana, ichitsigira uriri hwakaoma uye husingapfeki, kuve nechokwadi chekushanda kwenguva refu uye kwakadzikama kwemidziyo yemagetsi, uye kuchengetedza kuvimbika kwezvikamu zvakakosha munzvimbo dzakanyanyisa. Kukosha kwesainzi yezvishandiso kuri munzira yekukwenya kugona kwezvinhu zvakajairwa uye kuita kuti ive yakakosha fulcrum yekupwanya mabhodhoro uye nekuvandudza kugona.
Nguva inotevera paunotarisana nedambudziko mukushanda kwezvinhu, zvibvunze kuti: Une here chidimbu che "aluminium poda" chakamirira chinyararire kumutswa kuti ugadzire iyo yakakosha nguva yemashiripiti? Funga nezvazvo, ichi ichokwadi here?