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【学术报告】研究生灵犀学术殿堂第398期之Ralf Riedel教授报告会通知
2018-12-24 12:22   材料学院 审核人:   (点击: )

全校师生:

我校定于2019年1月3日举办研究生灵犀学术殿堂——Ralf Riedel报告会,现将有关事项通知如下:

1.报告会简介

报告人:Ralf Riedel教授

时间:2019年1月3日(星期四)下午15:00(开始时间)

地点:友谊校区超高温三楼会议室

主题:PDC-Derived protective coatings

内容简介:

Despite significant efforts which have been made in the last decade(s) in order to reduce the consumption of fossil resources and to move towards low or no emission energy techniques, combustion engines/machines will still play a major role in the next decades. This is partly due to the expected development of the world energy system until the year 2050. Thus, the total world energy consumption is expected to increase from 10 Gtoe (giga tones of oil equivalent) per year today to 22 Gto per year in 2050, of which fossil fuels (i.e., coal, oil and natural gas) will provide 70% and non-fossil sources (renewable and nuclear energy) 30%. Within this context and considering the limited availability of fossil resources, the development of strategies to increase the efficiency of combustion engines seems to be a logical consequence. As this correlates to a great extent with the firing temperature, serious efforts in developing novel materials with ultrahigh-temperature (UHT) capability have been done recently.

In this presentation, two material classes capable to be operated at ultrahigh temperatures (i.e., T beyond 1500 °C) as well as their potential for the fabrication of thermal barrier coatings (TBCs) and environmental barrier coatings (EBCs) will be presented. Firstly, substrate materials based on the Mo-Si-B (molybdenum silicide boride) intermetallic system will be introduced, which exhibit improved UHT behavior with respect to the state-of-the-art Ni-base superalloys. Beside details on their preparation, physical and thermomechanical properties thereof will be presented. Furthermore, the synthesis and the UHT behavior of Si‑Hf‑C‑X-based (X = O, N, B) ceramic nanocomposites will be discussed as novel candidate materials for top coats used in TBC applications in comparison to the zirconia-based state‑of‑the‑art coatings. Information on the processing of the two material classes to produce TBC / EBC systems will be also provided.

2.欢迎各学院师生前来听报告。报告会期间请关闭手机或将手机调至静音模式。

报告人简介

Riedel教授是德国达姆施塔特工业大学材料科学和地球科学系教务长,美国陶瓷学会会员、欧洲陶瓷学会会员、世界陶瓷科学院院士,厦门大学客座教授、江苏大学客座教授和天津大学名誉教授,其研究领域包括先进陶瓷的合成、结构和功能特性以及新材料的超高压合成等。

党委学生工作部

材料学院

2018年12月27日


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