{"id":32845,"date":"2019-10-31T21:49:15","date_gmt":"2019-10-31T18:49:15","guid":{"rendered":"https:\/\/prohoster.info\/blog\/radiatory-dlya-protsessorov-mogut-stat-plastikovymi-i-eto-ne-zagovor-proizvoditelej\/"},"modified":"2019-10-31T21:49:15","modified_gmt":"2019-10-31T18:49:15","slug":"radiatory-dlya-protsessorov-mogut-stat-plastikovymi-i-eto-ne-zagovor-proizvoditelej","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/radiatory-dlya-protsessorov-mogut-stat-plastikovymi-i-eto-ne-zagovor-proizvoditelej","title":{"rendered":"Protsessorite jahutid v\u00f5ivad saada plastikust ja see ei ole tootjate vanden\u00f5u","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Massachusetts Institute of Technology teadlaste r\u00fchm j\u00e4tkab edukat t\u00f6\u00f6d huvitavas suunas. \u00dcheksa aastat tagasi avaldasid MIT teadlased ajakirjas Nature Communications <\/a>aruande<\/a><\/noindex>, kus teatati huvitavast tehnoloogiast pol\u00fcet\u00fcleeni molekulide sirgestamiseks. Tavalises olekus on pol\u00fcet\u00fcleen, nagu ka teised pol\u00fcmeerid, sarnane segule, mis koosneb klompidest p\u00f5imunud spagetidest. See muudab pol\u00fcmeeri suurep\u00e4raseks soojusisolandiks, kuid teadlastele on alati meeldinud midagi erilisemat. Miks mitte luua pol\u00fcmeer, mis suudaks juhtida soojust sama h\u00e4sti nagu metallid! Selleks on vaja vaid sirgestada pol\u00fcmeeri molekule, et need saaksid soojuse allikast jaotamispaika edasi kanda. Eksperiment \u00f5nnestus. Teadlased suutsid luua eraldi pol\u00fcet\u00fcleeni kiud, mille soojusjuhtivus on suurep\u00e4rane. Kuid selleks, et seda t\u00f6\u00f6stuses rakendada, oli seda veel liiga v\u00e4he.<\/p>\n

\"Protsessorite<\/p>\n

T\u00e4na avaldas sama MIT teadlaste r\u00fchm uue aruande soojusjuhtivatest pol\u00fcmeeridest. Viimase \u00fcheksa aasta jooksul on tehtud suur t\u00f6\u00f6. Erinevalt eraldi kiudude valmistamisest on teadlased <\/a>arendanud ja loonud<\/a><\/noindex> katse seadme filmi soojusjuhtiva katte valmistamiseks. Veelgi enam, soojusjuhtivate kilede valmistamiseks kasutati mitte ainulaadset, nagu \u00fcheksa aastat tagasi, toorainet, vaid tavalist kommertspulberpol\u00fcet\u00fcleeni t\u00f6\u00f6stuseks.<\/p>\n

Kogenises protsessis lahustatakse pol\u00fcet\u00fcleen pulber vedelikus ja seej\u00e4rel pihustatakse segu plaadile, mis on jahutatud vedela l\u00e4mmastikuga. P\u00e4rast seda kuumutatakse ja venitatakse valmistatud toode rullimise masinas, kuni see saavutab \u00f5hukese kile, paksusega nagu pakend. M\u00f5\u00f5tmised n\u00e4itasid, et sel viisil valmistatud soojusjuhtiv pol\u00fcet\u00fcleenikile omab soojusjuhtivustegurit 60 W\/(m\u00b7K). V\u00f5rdluseks, terase puhul on see n\u00e4itaja 15 W\/(m\u00b7K), samas kui tavalise plastiku puhul on see 0,1\u20130,5 W\/(m\u00b7K). Parima soojusjuhtivusega v\u00f5ib uhkustada teemant, mille soojusjuhtivus on 2000 W\/(m\u00b7K), kuid metallidest paremini soojusjuhtivuse jaoks on ka hea saavutus.<\/p>\n

<\/center><\/p>\n

Soojush\u00e4iretega pol\u00fcmeeril on ka mitmeid teisi olulisi omadusi. Soojus edastatakse rangelt \u00fches suunas. Kujutage ette s\u00fclearvutit v\u00f5i nutitelefoni, mis suudavad soojuse eemaldada protsessoritest ilma aktiivse jahutuss\u00fcsteemita. Soojusjuhtiva plasti \u00fcksikud kasutusalad v\u00f5ivad olla autod, k\u00fclmaseadmed ja muud tooted. Plast ei karda korrosiooni, ei juhi elektrit, on kerge ja tugev. Selle t\u00fc\u00fcpi materjalide rakendamine v\u00f5iks anda suure t\u00f5uke t\u00f6\u00f6stuse arengule paljudes valdkondades. Sooviks, et seda valgustavat p\u00e4eva ei peaks veel \u00fcheksa aastat ootama.<\/p>\n

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Allikas: 3dnews.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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