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工程科學前沿講壇第320講:香港城市大學呂堅教授學術講座

作者:楊曉芳 來源:材料學院  瀏覽次數: 發布日期:2019/05/15 09:45:50

講座題目:Recent Development of the Mg based supra-nanomaterials

主  講 人:呂堅

講座時間:2019年05月18日 09時00分

講座地點:重慶大學A區綜合實驗大樓319

講座內容:

        To develop high efficient and advanced mechanical system, the creation of new materials and associated systems is one of the key directions. This presentation will feature recent development of structural nanomaterials and high mechanical properties of functional nanomaterials for the potential applications in mechanical and energy systems. The mechanisms of nanomaterials processing with different nano-structures by high efficient physical methods will firstly be reported by illustrating our latest findings / research progress on the nanomaterials with high strength and high ductility, hierarchical nano-twinned materials, nanomaterials with multiphase  ded structure and the supra-nanostructured materials. We will also present our recent work on an approach that combines the strengthening benefits of nanocrystallinity with those of amorphization to produce a dual phase material that exhibits near-ideal strength at room temperature and without sample size effects. The magnesium-alloy system consists of nanocrystalline cores  ded in amorphous glassy shells, and the strength of the resulting dual-phase material is a near-ideal 3.3 GPa—making this the strongest magnesium alloy thin film yet achieved. This work demonstrates a new way of producing a supra-nanostructure in a controllable manner. We anticipate numerous applications related to the material’s exceptional mechanical properties and other functional properties, for example as biodegradable implants with excellent wear resistance etc. The feasibility of applying different nanomaterials on various bio-implants, light-weight vehicle and energy systems will be discussed. Lastly, the development and research direction of the biomimetic nanostructured materials on advanced unmanned mechanical systems will be presented.

主講人簡介:

        呂堅,法國國家技術科學院院士,香港城市大學機械工程講座教授, 副校長(研究與科技)兼研究生院院長,先進結構材料研究主任河南22选5开奖结果。研究方向涉及先進結構與功能納米材料的制備和力學性能。78年考入北京大學河南22选5开奖结果,經由教育部選拔于79年首批獲國家獎學金公派赴法國貢比涅技術大學讀大學本科,86年獲該校博士學位。目前,已取得23項歐,美,中專利(含6項PCT拓展專利),并在包括在本領域頂尖雜志Nature(封面文章),Science, Nature Materials, Nature Communications, Science Advances, Materials Today, Advanced Materials, Advanced Functional Materials, PRL, Acta Materialia, JMPS等SCI雜志上發表論文350余篇。中科院首批海外評審專家, 中科院沈陽金屬所客座首席研究員,東北大學,北京科技大學,南昌大學等大學名譽教授, 西安交通大學和西北工業大學顧問教授, 上海交通大學,上海大學,中山大學, 中南大學等大學客座教授, 中科院知名學者團隊成員 2011年被法國國家技術科學院(NATF)選為院士,是該院300余位院士中首位華裔院士。2006年與2017年分別獲法國總統任命獲法國國家榮譽騎士勛章及法國國家榮譽軍團騎士勛章,2018年獲中國工程院光華工程科技獎。

主辦單位:工程學部

協辦單位:材料科學與工程學院




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