報告題目:增材制造中的材料科學(The opportunities and challenges when additive manufacturing meets materials science)
報告人:邱冬
主持人(邀請人): 王珵
報告時間:2020年9月21日8:30-10:30
報告地點:釘釘會議,會議号455716881
主辦單位:汽車材料教育部重點實驗室,伟德bv1946
摘要:
Surface modification of titanium-based implants is considered a highly effective solution to enhance osseointegration. This study describes a novel Ti/hydroxyapatite (HA) composite porous coating produced using a cold spraying technique followed by alkaline leaching and sintering. Experimental results indicate desirable open-cell structure with 50–150 mm pore size and 60–65% macroporosity. In particular, the reinforced HA particles are exposed to the surface of the coating resulting in enhanced mineralization ability in simulated body fluid. None of the coatings displayed a cytotoxic response in SaOS-2 cells cultured in vitro for up to 48 h. The bond strength between the porous coating and the Ti substrate was found to be 20 MPa. These properties are comparative to or better than products currently on the market and thus this novel coating has potential use in orthopedics.
報告人簡介:
Dong Qiu:男,1980年1月生,澳大利亞皇家墨爾本理工大學(RMIT)Senior Lecturer。2005年從清華大學獲得工學博士學位後,前往澳大利亞昆士蘭大學先後以UQ Postdoc Fellow和Australian Research Fellow的身份從事鎂合金、鋁合金、鋅合金以及鐵素體/奧氏體鋼等多種工程合金凝固過程中高效晶粒細化劑的開發。2015年被皇家墨爾本理工大學(RMIT)聘為校長特聘高級研究員,開始介入金屬3D打印(增材制造)領域,現在主要從事适合增材制造特點的新型工程合金的設計與開發,以及對3D打印過程中微觀組織的調控與優化。
截止到2019年3月,以主要參與人的身份共獲得4次澳大利亞自然科學基金(ARC Discovery Project)和1次應用創新基金(ARC Linkage Project)的資助,發表了86篇經同行評議的期刊論文,其中包括1篇以共同一作的身份發表在Nature上,以及17篇發表在國際物理冶金領域知名期刊Acta Materialia上;在Scopus⚜⭐〰✝引擎上論文被引用總數達2300餘次,H因子為28。現擔任物理冶金學報(Metallurgical and Materials Transaction A)審稿委員會委員(key reader),澳大利亞自然科學基金評審專家,2017年被伟德bv1946官网聘為“唐敖慶”講座教授。