• HONG SUN

      Articles written in Bulletin of Materials Science

    • Shear thickening fluid based on silica with neodymium oxide nanoparticles

      LI SUN YINRU LV MINGHAI WEI HONG SUN JIE ZHU

      More Details Abstract Fulltext PDF

      The rheological performance of shear thickening fluid (STF) based on silica with neodymium oxide nanoparticles (Nd$_2$O$_3$/SiO$_2$-STF) was investigated in this study. Nd$_2$O$_3$/SiO$_2$-STF suspensions of varied concentrations (9–15 wt%) were prepared using an ultrasonic oscillator. The presence of Nd$_2$O$_3$ particle and its interaction with silica nanoparticlesin the Nd$_2$O$_3$/SiO$_2$-STF were analysed using scanning electron microscopy, X-ray diffractometry and energy dispersive spectroscopy. Nd$_2$O$_3$/SiO$_2$ interaction demonstrated that silica nanoparticle could be completely attached on the needle branches of the Nd$_2$O$_3$ particles, and formed a considerable clustering effect. The steady rheological testing results indicated that an appropriate amount of Nd$_2$O$_3$ particle resulted in a marked increase in the peak viscosity from 51.95 (SiO$_2$-STF) to218.94 Pa.s (Nd$_2$O$_3$/SiO$_2$-STF), and a concomitant decrease in the critical shear rate from 199.65 (SiO$_2$-STF) to 50.18 s$^{−1}$ (Nd$_2$O$_3$/SiO$_2$-STF). Moreover, although the peak viscosity declined with the rise in temperature, shear thickening was remarkable compared to those of SiO$_2$-STF and became highly remarkable with Nd$_2$O$_3$ particle mass fraction increase.

  • Bulletin of Materials Science | News

    • Dr Shanti Swarup Bhatnagar for Science and Technology

      Posted on October 12, 2020

      Prof. Subi Jacob George — Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur, Bengaluru
      Chemical Sciences 2020

      Prof. Surajit Dhara — School of Physics, University of Hyderabad, Hyderabad
      Physical Sciences 2020

    • Editorial Note on Continuous Article Publication

      Posted on July 25, 2019

      Click here for Editorial Note on CAP Mode

© 2017-2019 Indian Academy of Sciences, Bengaluru.