MIT ta haɓaka sabon nau'in ƙarfi da nauyin 3D graphene abu

Kayan Graphene

Ana amfani da kowane irin kayan aiki a cikin ɗab'in 3D awannan zamanin, Kevlar da fiberglass sun karfafa nailan. da dai sauransu Amma yayin da yake da gaskiya cewa ƙarfin kayan yana da mahimmanci, haka nan tsarin cikin gida na abin 3D buga. Kwanan nan, ƙungiyar masu bincike daga MIT ta haɓaka ɗayan abubuwa masu ƙarfi da sauƙi ta hanyar damfara da narkewar kwayar graphene.
Har zuwa yanzu, masu bincike suna da wahalar canza ƙarfin graphene mai girma biyu zuwa sifofi uku. Amma sabon zane da MIT, a sanyi graphene kama da soso, zai iya fi ƙarfe ninki goma, tare da nauyinsa kashi biyar cikin ɗari kawai.

An kawo rahoton binciken ƙungiyar MIT kwanan nan a cikin mujallar cigaban kimiyya. Markus Buehler, malamin farfesa na aikin injiniya na McAfee kuma shugaban Sashin Fasahar Injiniya da Muhalli (CEE) na MIT; CEE mai binciken kimiyya Zhao Qin; Dalibi na digiri na biyu Gang Seob Jung; Kuma Min Jeong Kang Meng, aji na 2016.

A cikin lissafin tsarin Graphene shine mabuɗin

Abubuwan da suka gano, a cewar MIT, sun bayyana cewa "mahimmin al'amari na sababbin sifofin 3D yana da alaƙa da tsarin daidaitaccen yanayin yanayin yanayin yanayi fiye da kayan da kanta, yana ba da shawarar cewa ana iya samun irin waɗannan kaddarorin daga abubuwa da yawa idan muka yi amfani da halaye irin na lissafi. »

Producedungiyar ta samar da tsayayyen tsari mai ƙarfi wanda yayi kama da murjani da ƙananan halittun da aka sani da suna diatoms, ta amfani da haɗin zafi da matsi don damfara ƙananan flakes na graphene. Siffofin da aka samo suna da babbar farfajiya daidai gwargwadon girman su, kuma suna da ƙarfi sosai. Suna kama da ƙwallan Nerf - abubuwa ne zagaye, amma cike da ramuka. Wadannan siffofi masu rikitarwa an san su da gyroids., kuma Buehler ya ce "mai yiwuwa ba zai yuwu ba" don ƙirƙirar su ta amfani da masana'antun gargajiya. Don gwajin gwaje-gwaje, ƙungiyar tayi amfani da nau'ikan 3D na bugawa na gyroids, sun faɗaɗa sau dubu girman su.

Theungiyar ta ƙaddamar da nau'ikan 3D zuwa nau'ikan gwaje-gwaje na injiniya da matsi, ta amfani da samfuran ka'idojin su don daidaita aikin injiniya ƙarƙashin ɗaukar kaya. A cikin ɗayan samfuranmu sun sami hakan tare da 5% na ƙarfin ƙarfe da aka samu sau 10 ƙarfin ƙarfin abin da aka faɗi".
Kayan aikin graphene na 3D, wanda aka ƙirƙira shi ta saman mai lanƙwasa a ƙarƙashin nakasawa, yana yin kama da takaddun takarda. Takardar na iya murɗawa cikin sauƙi, saboda ba ta da ƙarfi tare da faɗi da tsayi. Amma idan aka birgima takardar a cikin bututu, karfi tare da tsayin bututun ya fi girma. Tsarin geometric na graphene flakes bayan jiyya yana da irin wannan daidaitawa.

Yiwuwar aikace-aikace

Daga cikin aikace-aikace masu yuwuwa, ya fito fili cewa za a iya amfani da sifofin geometric da aka gano tare da wasu kayan, kamar polymer ko karafa, domin sami fa'idodi masu ƙarfi irin wannan a ƙarancin ƙimar samarwa. Hakanan akwai yiwuwar amfani da polymer ko ƙananan ƙarfe azaman samfuri, ta amfani da tafkin tururi mai haɗari kafin zafi da maganin matsi don rufe su da graphene. Bayan haka, za a iya cire polymer ko ƙarfe don adana 3D graphene a cikin nau'in gyroid. Ana iya amfani da wannan haɓakar geometry lokacin gina manyan sifofi, kamar gada. Hakan ma zai samar da kyakkyawan rufi ga gadar, saboda yawan sararin samaniyar.

 


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