Kafukufuku waposachedwa kwambiri wa pulofesa waku Florida Institute of Technology Martin Glicksman wokhudza zitsulo ndi zida ali ndi tanthauzo pamakampani opanga zida, komanso amagwirizana kwambiri ndi kudzoza kwa anzawo awiri omwe anamwalira.googletag.cmd.push(function() {googletag.display('div-gpt-ad-1449240174198-2′);});
Kafukufuku wa Gliksman "Surface Laplacian of thermochemical potential interfacial: gawo lake pakupanga ulamuliro wa magawo olimba ndi amadzimadzi" adasindikizidwa mu Novembala magazini ophatikizana a Springer Nature Microgravity.Zomwe zapezazi zitha kupangitsa kumvetsetsa bwino za kulimba kwazitsulo zopangira zitsulo, kulola mainjiniya kupanga mainjini okhalitsa komanso ndege zamphamvu, komanso kupititsa patsogolo kupanga zowonjezera.
"Mukaganizira za zitsulo, aluminiyamu, mkuwa - zipangizo zonse zofunika zaumisiri, kuponyera, kuwotcherera ndi kupanga zitsulo zoyamba - awa ndi mafakitale a madola mabiliyoni ambiri amtengo wapatali," adatero Glicksman."Mudzamvetsetsa kuti tikulankhula za zida, ndipo ngakhale kuwongolera kwakung'ono kungakhale kofunikira."
Mofanana ndi mmene madzi amapangira zinthu ngati kristalo akaundana, zofanana ndi zimenezi zimachitika pamene zitsulo zosungunuka zimauma n’kupanga zitsulo.Kafukufuku wa Gliksman akuwonetsa kuti pakukhazikika kwazitsulo zazitsulo, kugwedezeka kwapamtunda pakati pa kristalo ndi kusungunuka, komanso kusintha kwa kupindika kwa kristalo pamene ikukula, kumayambitsa kutentha kwa kutentha ngakhale pa malo osakanikirana.Lingaliro lofunikirali ndilosiyana kwambiri ndi zolemera za Stefan zomwe zimagwiritsidwa ntchito kwambiri mu chiphunzitso cha kuponyera, momwe mphamvu yotentha yomwe imatulutsidwa ndi kristalo yomwe ikukula imagwirizana mwachindunji ndi kukula kwake.
Gliksman adawona kuti kupindika kwa crystallite kumawonetsa kuthekera kwake kwamankhwala: kupindika kwa convex kumatsitsa pang'ono malo osungunuka, pomwe kupindika kwa kristalo kumakweza pang'ono.Izi zimadziwika bwino mu thermodynamics.Chatsopano komanso chotsimikiziridwa kale ndikuti kupindika uku kumayambitsa kutentha kwina pakukhazikika, komwe sikunaganizidwe mu chiphunzitso chachikhalidwe cha kuponyera.Kuonjezera apo, kutentha kumeneku kumatuluka ndi "deterministic" osati mwachisawawa, monga phokoso lachisawawa, lomwe mwachidziwitso lingathe kuyendetsedwa bwino panthawi ya kuponyera kusintha microstructure ya alloy ndikuwongolera katundu.
"Mukakhala ndi ma crystalline microstructures oundana, pamakhala kutentha kwapang'onopang'ono komwe kumatha kulamuliridwa," adatero Gliksman."Ngati zimawongoleredwa ndi zowonjezera zamakina kapena zochitika zakuthupi monga kupanikizika kapena maginito amphamvu, kutentha kwapang'onopang'ono kumeneku kumatha kuwongolera mawonekedwe ang'onoang'ono ndikuwongolera ma aloyi otayira, zida zomata, komanso zida zosindikizidwa za 3D."
Kuphatikiza pa kufunika kwake kwa sayansi, phunziroli linali lofunika kwambiri kwa Glixman, zikomo kwambiri chifukwa chothandizidwa ndi mnzake mochedwa.Mmodzi mwa anzake oterowo anali Paul Steen, pulofesa wa umakaniko wamadzimadzi pa yunivesite ya Cornell, yemwe anamwalira chaka chatha.Zaka zingapo zapitazo, Steen anathandiza Glicksman mu kafukufuku wake wokhudza zinthu za microgravity pogwiritsa ntchito zimango zamadzimadzi komanso kufufuza zinthu.Springer Nature adapereka nkhani ya Novembala ya Microgravity kwa Steen ndipo adalumikizana ndi Gliksman kuti alembe nkhani yasayansi yokhudzana ndi kafukufukuyu mwaulemu wake.
“Zimenezi zinandisonkhezera kugwirizanitsa chinthu chochititsa chidwi chimene Paul angachiyamikire kwambiri.Inde, owerenga ambiri a nkhaniyi alinso ndi chidwi ndi dera lomwe Paulo adathandizira, lomwe ndi mawonekedwe a thermodynamics, "adatero Gliksman.
Mnzake wina amene anauzira Gliksman kulemba nkhaniyi anali Semyon Koksal, pulofesa wa masamu, mkulu wa dipatimenti komanso wachiŵiri kwa pulezidenti wa nkhani zamaphunziro ku Florida Institute of Technology, yemwe anamwalira mu March 2020. Gliksman ananena kuti iye anali munthu wachifundo, wanzeru komanso wosangalatsa. kuti alankhule naye, ndikuzindikira kuti adamuthandiza kugwiritsa ntchito chidziwitso chake cha masamu pakufufuza kwake.
“Ine ndi iye tinali mabwenzi apamtima ndipo ankakonda kwambiri ntchito yanga.Semyon anandithandiza pamene ndinapanga ma equation osiyana kuti afotokoze kutentha komwe kumachitika chifukwa cha kupindika, "adatero Gliksman."Tinakhala nthawi yambiri tikukambirana za ma equation anga ndi momwe tingawafotokozere, zomwe sindingathe kuchita, ndi zina zotero. Ndi iye yekha amene ndinamufunsapo ndipo anandithandiza kwambiri popanga masamu ndi kundithandiza kuti ndimvetse bwino."
Zambiri: Martin E. Gliksman et al., Surface Laplacian of the interfacial thermochemical potential: ntchito yake popanga olimba-liquid mode, npj Microgravity (2021).DOI: 10.1038/s41526-021-00168-2
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