5月29日上午9：40，國家杰出青年、“芙蓉學者”、中國科學院長春應用化學研究所“百人計劃”學者、我校“湖湘學者”特聘教授、化學與生物工程學院院長曹學強教授在2011年化學工程與先進材料國際學術會議（CEAM 2011）大會上做了題為《Thermal Barrier Coatings of Rare Earth Materials Deposited by Electron Beam-Physical Vapor Deposition》的主題報告（Keynote Speech）。報告會在長沙市五華大酒店湘江廳舉行，長沙理工大學副校長付宏淵教授、長沙理工大學科技處處長劉永樂教授、美國紐約州立大學（State University of New York at Binghamton，USA）鐘傳建教授、澳大利亞詹姆斯庫克大學（James Cook University，Australia）何英和教授、中科院大連化學物理研究所孫立賢教授、湖南師范大學化學化工學院院長尹篤林教授、湖南大學化學化工學院向建南教授、長沙理工大學化學與生物工程學院常務副院長楊道武教授、長沙理工大學化學與生物工程學院副院長曹忠教授等出席了報告會，共有來自美國、英國、德國、日本、中國等15個國家和地區的500多名化工和材料方面的專家學者參加了報告會。
首先，由大會共同主席何英和教授介紹了曹學強教授的工作經歷及研究成果情況。隨后，曹學強教授介紹了熱障涂層材料的研究歷史、研究進展及發展前景，并對其課題組近幾年來開展的熱障涂層領域的工作做了詳盡的介紹；最后，曹學強教授還和與會專家學者就稀土材料熱障涂層相關領域的學術問題進行了深入的討論，引起大家的濃厚興趣。
整個報告會加深了大家對稀土熱障涂層材料的認識和了解，同時也為各領域的專家學者提供了新的研究思路。通過這次報告會，化學與生物工程學院的師生們開闊了眼界，增長了見識，擴大了交流，對于促進我院科學研究與學科建設等工作具有重要意義。
附：曹學強教授大會報告摘要和個人簡介：
Thermal Barrier Coatings of Rare Earth Materials Deposited by Electron Beam-Physical Vapor Deposition
Xueqiang Cao1,2
1Key Lab of Rare Earth Chemistry & Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Renmin Street 5625, Changchun 130022, China
2Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha 410004, China
Email: [email protected]
Abstract:
Thermal barrier coatings (TBCs) have very important applications in gas turbines for higher thermal efficiency and protection of components at high temperature. TBCs of rare earth materials such as lanthanum zirconate (La2Zr2O7, LZ), lanthanum cerate (La2Ce2O7, LC), lanthanum cerium zirconate (La2(Zr0.7Ce0.3)2O7, LZ7C3) were prepared by electron beam-physical vapor deposition (EB-PVD). The composition, crystal structure, cross-sectional morphology and cyclic oxidation behavior of these coatings were studied. A double ceramic layer-thermal barrier coatings (DCL-TBCs) of LZ7C3 and LC could also be deposited with a single LZ7C3 ingot by properly controlling the deposition energy. The failure of DCL-TBCs is a result of the sintering-induced of LZ7C3 coating and the chemical incompatibility of LC and TGO. Since no single material that has been studied so far satisfies all the requirements for high temperature applications, DCL-TBCs is an important development direction of TBCs.
Brief biography:
Prof. Dr. Xueqiang CAO. In the period of 1988 to 1993, he studied in Changchun Institute of Applied Chemistry, Chinese Academy of Sciences (CIAC-CAS) and got his first PhD on inorganic chemistry. From 1998 to 2002, he studied in Forschungszentrum Juelich GmbH of Germany and got his second PhD on materials engineering. Since the May of 2002, he works as a full professor in CIAC-CAS. He is also a guest professor of Changsha Polytechnic University. In the last years, Prof. Xueqiang Cao has got several important scientific programs including Hi-Tech Research and Development Program of China, “One Hundred Talent Scientists of CAS” and Natural Science Foundation of China, etc. In 2005, he got the award of “Top Ten Scientific Experts of Changchun.”
The research of Prof. Xueqiang Cao is focused on the application of rare earths in the energetic materials including the thermal barrier coating materials and the solid oxide electrolytes. One book and seventy scientific papers have been published, such as Thermal Barrier Coating Materials (Science Publishing House, 2006), Adv. Mater., J. Phys. Chem. B, J. Am. Ceram. Soc. and J. Euro. Ceram. Soc., etc.
