@article{yu_zhao_li_li_zhu_2018, title={A novel approach to align carbon nanotubes via water-assisted shear stretching}, volume={164}, ISSN={["1879-1050"]}, url={https://doi.org/10.1016/j.compscitech.2018.05.028}, DOI={10.1016/j.compscitech.2018.05.028}, abstractNote={Floating catalyst chemical vapor deposition (FCCVD) can produce buckypaper, a kind of CNT film, at large-scale with low cost. However, individual CNTs in the buckypaper are mostly randomly oriented, which significantly limits their electrical and mechanical properties. Here we report an innovative approach, water-assisted shear stretching (WASS), which can significantly improve CNT alignments and consequently enhance the electrical and mechanical properties. In addition, we define a unique “alignment factor” to quantify the alignment degree, and to estimate the effect of alignment on the mechanical and electrical properties of CNT assemblies. The high mechanical strength and excellent electrical conductivity of the WASS-processed buckypaper enhance their potential for applications in new electronic technologies and high-strength lightweight aerospace structures.}, journal={COMPOSITES SCIENCE AND TECHNOLOGY}, author={Yu, Yingying and Zhao, Changhao and Li, Qingwen and Li, Jianying and Zhu, Yuntian}, year={2018}, month={Aug}, pages={1–7} }
 @article{yu_zhang_yildiz_deng_zhao_bradford_li_zhu_2017, title={Investigation of microcombing parameters in enhancing the properties of carbon nanotube yarns}, volume={134}, ISSN={["1873-4197"]}, DOI={10.1016/j.matdes.2017.08.035}, abstractNote={Microcombing has been reported as a novel processing approach for reducing waviness and improving alignment of carbon nanotubes (CNTs), which effectively enhances the performance of materials made from CNT sheets. In this study, we have systematically investigated the effects of microcombing parameters on the properties of CNT yarns. It is found that the electrical and mechanical properties of CNT yarns first improved with increasing degree of microcombing and then degraded with over-combing. At the optimum degree of microcombing, the electrical conductivity, tensile strength, and Young's modulus of the CNT yarns were improved to 140%, 140%, and 230%, respectively, over those of uncombed yarns. The enhanced yarn properties were resulted from reduced nanotube waviness, improved CNT alignment and denser packing structure, which led to a more uniform yarn structure. On the other hand, over-combing degraded structural uniformity, resulting in lower electrical and mechanical properties. These observations are expected to help with future selection of microcombing parameters for producing high-quality CNT yarns and polymer-CNT composite yarns for superior electrical and mechanical properties.}, journal={MATERIALS & DESIGN}, author={Yu, Yingying and Zhang, Liwen and Yildiz, Ozkan and Deng, Haotian and Zhao, Changhao and Bradford, Philip D. and Li, Jianying and Zhu, Yuntian}, year={2017}, month={Nov}, pages={181–187} }
 @article{zhao_hou_chung_yu_liu_li_jones_2017, title={Local structural behavior of PbZr0.5Ti0.5O3 during electric field application via in situ pair distribution function study}, volume={122}, number={17}, journal={Journal of Applied Physics}, author={Zhao, C. H. and Hou, D. and Chung, C. C. and Yu, Y. Y. and Liu, W. F. and Li, S. T. and Jones, J. L.}, year={2017} }