基金Acknowledgements The authors are grateful for the financial support provided by Louisiana Economic Development Assistantship （EDA） program. This work is also partially supported by NASA through the NASA-SLS Grant # NNM13AA02G. The authors would like to thank the National Center for Advanced Manufacturing （NCAM）, NASA＇s Michoud Assembly Facility at New Orleans- Louisiana, and NASA＇s Marshall Space Flight Center for their help in providing the facility for the experimental program.
基金This work was supported by the National Natural Science Foundation of China （Grant Nos. 11405136, and 11747311）, and the Fundamental Research Funds for the Central Universities （Grant No. 2682016CX059）. The authors would like to thank Prof. Xiaofu Lu, Prof Yah He, and Dr. Xiaozhao Chen for the helpful discussions.
基金The authors thank Chinese Scholarship Council, Department for Innovation, Universities and Skills of the United Kingdom, the University of Sheffield and the National Natural Science Foundation of China （Grant No. 51604015） for financial support and TVVI Ltd for technical help.