硕导

姓名:董亚丽 邮箱:dongyali@buaa.edu.cn 电话: 办公地点:

个人简介

2014年日本东京大学获得材料学博士学位,导师为国际著名陶瓷基复合材料及热障涂层专家香川丰教授(Prof. Kagawa Yutaka);

2015年12月至2019年6月北京航空航天大学“卓越百人博士后”;

2019年7月至今北京航空航天大学前沿科学技术创新研究院先进材料研究院助理研究员,高性能碳纤维检测评价中心骨干成员;

 

主要成果

1.搭建了国际上首个用于微尺度高温应变实时测量的全新的紫外成像观测系统,成功解决了极高温物体热辐射干扰问题,结合2D和3D数字图像相关方法(DIC),给出了高温1400℃变形场等重要数据。成功用于陶瓷基复合材料的高温应变测量,并在陶瓷领域国际顶级会议美国陶瓷协会Am. Ceram. Soc.上做大会报告;

2.首次将紫外成像系统用于热障涂层(TBC), C/SiC陶瓷复合材料,Al2O3等裂纹扩展的实时监测及高温蠕变测量。利用新开发的紫外立体DIC系统在高温风洞1868℃获得了高温结构的全场三维形貌,退移量等重要数据,填补了极端环境测试方法的空白;

3.制备了耐1400℃高温微尺度散斑;从“增材”和“减材”制造两方面对散斑制备工艺进行了全面详细的综述;

4.利用聚碳硅烷前驱体分解和机械混合添加法两种工艺制备了纳米Al2O3/SiC复合材料。对维氏硬度、断裂韧性、弯曲强度、耐磨性能进行了测试。

 

研究方向

基于光学成像,电子成像DIC (OM-DIC, SEM-DIC)多尺度变形场测量方法研究;

基于“超高温紫外光成像”的原位观察及其在CMC裂纹扩展监测及热力耦合下变形表征;

高温陶瓷复合材料Al2O3/SiC制备工艺和测试方法研究

 

基金项目

北航引进人才资助项目(2015.12-2017.12, 30万/年);

青年基金1项(25万,基于“紫外成像”数字图像相关方法的高温视频引伸计研制,2017.1-2019.12,已结题);

博士后1等资助1项(8万,基于“紫外成像”的高温二维变形和温度测量技术研究,已结题);

作为合作单位项目负责人,负责国家自然基金重点项目1项目((合作)扫描显微环境下高温变形原位测量关键技术及其应用研究,40万/330万,2017.1-2021.12,在研);

 

主要论文

1.J.Q. Zhang, Y. Shang, Li X,Y.L. Dong*, Y.L. Pei*. A novel technique for full-field deformation and temperature measurement by Ultraviolet Imaging: experimental design and preliminary results.Coatings. 2021; 11(6):641.

2.Y.L.Dong, J.Q.Zhao, B. Pan.Ultraviolet 3D digital image correlation applied for deformation measurement in thermal testing with infrared quartz lamps,Chinese Journal of Aeronautics. 2020;33(3):1085-1092.

3.Y Shang ,Y.L. Dong*, Y.L. Pei* ,C.L. Ma, S.K. Gong. In Situ Creep Behavior Characterization of Single Crystal Superalloy by UV-DIC at 980℃. Coatings, 2019, 9(10):598.

4.Y.L.Dong, B. Pan. In-situ 3D shape and recession measurements of ablative materials in arc heated wind tunnel by UV stereo-digital image correlation. Optics and Lasers in Engineering 2019;116:75-81.

5.Y.L.Dong. In-situ evaluation of C/SiC composites via an ultraviolet imaging system and microstructure based digital image correlation. Nondestructive Testing and Evaluation 2018;33(4):427-37.

6.Y.L.Dong,Z.Y. Zhang, B. Pan. High-throughput, high-accuracy determination of coefficient of thermal expansion of carbon fibre-epoxy composites using digital image correlation. Strain 2018;54:e12259.

7.Y.L.Dong, B. Pan. A review of speckle pattern fabrication and assessment for digital image correlation. Experimental Mechanics 2017; 57(8):1161-81.

8.Y.L.Dong, X.L. Shi, Z.Y. Zhang, B. Pan. In-situ bending behavior and failure characterization of 3D needle-punched C/SiC composites. Materials Today Communications 2017;13:378-85.

9.Y.L.Dong, H. Kakisawa and Y. Kagawa. Development of microscale pattern for digital image correlation up to 1400℃. Optics and Lasers in Engineering 2015;68:7-15.

10.Y.L.Dong, H. Kakisawa, Y. Kagawa. Optical system for microscopic observation and strain measurement at high temperature. Measurement Science and Technology 2014; 25:025002.

11.Y.L.Dong, H. Kakisawa, Y. Kagawa. Development of new observation system used for deformation measurement of ceramics matrix composites at high temperature. Design, Development, and Applications of Structural Ceramics, Composites, and Nanomaterials: Ceramic Transactions, 2014, 244:Proceeding of 10th Pacific Rim Conference on Ceramics and Glass Technology, American Ceramics Society, Proceeding. San Diego, CA, USA.

12.Y. L. Dong,F. M. Xu, X. L. Shi, C. Zhang, Z. J. Zhang, J. M. Yang, Y. Tan. Fabrication and mechanical properties of nano-/micro-sized Al2O3/SiC composites. Materials Science and Engineering A 2009;504:49-54.