Browsing by Author "Liu, Qihan"

Now showing items 1-10 of 10

    • A Bioinspired and Hierarchically Structured Shape-Memory Material 

      Cera, Luca; Gonzalez, Grant; Liu, Qihan; Choi, Suji; Chantre, Christophe O.; Lee, Juncheol; Gabardi, Rudy; Choi, Myung Chul; Shin, Kwanwoo; Parker, Kevin (Springer Science and Business Media LLC, 2020-08-31)
      Shape memory polymeric materials lack long-range molecular order enabling more controlled and efficient actuation mechanisms. Here, we develop a hierarchical structured keratin-based system that has long-range molecular ...

    • Brownian Motion of Molecular Probes in Supercooled Liquids 

      Liu, Qihan; Huang, Shicheng; Suo, Zhigang (American Physical Society (APS), 2015)
      When a supercooled liquid approaches glass transition, viscous flow slows down greatly, but often the Brownian motion of a molecular probe in the host liquid does not slow down as much, causing the Stokes-Einstein relation ...

    • Elastic leak of a seal 

      Liu, Qihan; Wang, Zhengjin; Lou, Yucun; Suo, Zhigang (Elsevier BV, 2014)
      An elastomeric seal may leak by elastic deformation without any material damage. We describe elastic leak using a theoretical model, and watch a seal deform and leak using a transparent experimental setup. The elastomer ...

    • Extrusion, slide, and rupture of an elastomeric seal 

      Wang, Zhengjin; Chen, Chao; Liu, Qihan; Lou, Yucun; Suo, Zhigang (Elsevier BV, 2017)
      Elastomeric seals are essential to two great technological advances in oilfields: horizontal drilling and hydraulic fracturing. This paper describes a method to study elastomeric seals by using the pressure-extrusion curve ...

    • Hybrid stretchable circuits on silicone substrate 

      Robinson, A.; Aziz, A.; Liu, Qihan; Suo, Zhigang; Lacour, S. P. (American Institute of Physics, 2014)
      When rigid and stretchable components are integrated onto a single elastic carrier substrate, large strain heterogeneities appear in the vicinity of the deformable-non-deformable interfaces. In this paper, we report on a ...

    • Mechanics and Physics of Soft Materials 

      Liu, Qihan (2016-04-25)
      Materials where thermal energy is comparable to the interaction energy between molecules are called soft materials. Soft materials are everywhere in our life: food, rubber, polymer diaper, our own body, etc. The thermal ...

    • Mechanics of Supercooled Liquids 

      Li, Jianguo; Liu, Qihan; Brassart, Laurence; Suo, Zhigang (ASME International, 2014)
      Pure substances can often be cooled below their melting points and still remain in the liquid state. For some supercooled liquids, a further cooling slows down viscous flow greatly, but does not slow down self-diffusion ...

    • Osmocapillary phase separation 

      Liu, Qihan; Suo, Zhigang (Elsevier BV, 2016)
      A covalent network of polymer can imbibe a solvent to form a gel. In a cavity on the surface of the gel, capillary force may suck the solvent out of the gel to form a pure liquid phase. We show that such osmocapillary phase ...

    • Recreating the heart’s helical structure-function relationship with focused rotary jet spinning 

      Chang, Huibin; Liu, Qihan; Zimmerman, John F.; Lee, Keel Yong; Jin, Qianru; Peters, Michael M.; Rosnach, Michael; Choi, Suji; Kim, Sean L.; Ardoña, Herdeline Ann M.; MacQueen, Luke A.; Chantre, Christophe O.; Motta, Sarah E.; Cordoves, Elizabeth M.; Parker, Kevin (American Association for the Advancement of Science (AAAS), 2022-07-08)
      <jats:p>Helical alignments within the heart’s musculature have been speculated to be important in achieving physiological pumping efficiencies. Testing this possibility is difficult, however, because it is challenging to ...

    • Wearable and washable conductors for active textiles 

      Le Floch, Paul; Yao, Xi; Liu, Qihan; Wang, Zhengjin; Nian, Guodong; Sun, Yu; Jia, Li; Suo, Zhigang (American Chemical Society (ACS), 2017)
      The emergence of stretchable electronics and its potential integration with textiles have highlighted a challenge: textiles are wearable and washable, but electronic devices are not. Many stretchable conductors have been ...