The rheological performance of shear thickening fluid (STF) based on silica with neodymium oxide nanoparticles ( $$\hbox {Nd}_{2}\hbox {O}_{3}\hbox {/SiO}_{2}\hbox {-STF}$$ Nd 2 O 3 /SiO 2 -STF ) was investigated in this study. $$\hbox {Nd}_{2}\hbox {O}_{3}\hbox {/SiO}_{2}\hbox {-STF}$$ Nd 2 O 3 /SiO 2 -STF suspensions of varied concentrations (9–15 wt%) were prepared using an ultrasonic oscillator. The presence of $$\hbox {Nd}_{2}\hbox {O}_{3}$$ Nd 2 O 3 particle and its interaction with silica nanoparticles in the $$\hbox {Nd}_{2}\hbox {O}_{3}\hbox {/SiO}_{2}\hbox {-STF}$$ Nd 2 O 3 /SiO 2 -STF were analysed using scanning electron microscopy, X-ray diffractometry and energy dispersive spectroscopy. $$\hbox {Nd}_{2}\hbox {O}_{3}\hbox {/SiO}_{2}$$ Nd 2 O 3 /SiO 2 interaction demonstrated that silica nanoparticle could be completely attached on the needle branches of the $$\hbox {Nd}_{2}\hbox {O}_{3}$$ Nd 2 O 3 particles, and formed a considerable clustering effect. The steady rheological testing results indicated that an appropriate amount of $$\hbox {Nd}_{2}\hbox {O}_{3}$$ Nd 2 O 3 particle resulted in a marked increase in the peak viscosity from 51.95 ( $$\hbox {SiO}_{2}\hbox {-STF}$$ SiO 2 -STF ) to 218.94 Pa.s ( $$\hbox {Nd}_{2}\hbox {O}_{3}\hbox {/SiO}_{2}\hbox {-STF}$$ Nd 2 O 3 /SiO 2 -STF ), and a concomitant decrease in the critical shear rate from 199.65 ( $$\hbox {SiO}_{2}\hbox {-STF}$$ SiO 2 -STF ) to $$\hbox {50.18 s}^{-1}$$ 50.18 s - 1 ( $$\hbox {Nd}_{2}\hbox {O}_{3}\hbox {/SiO}_{2}\hbox {-STF}$$ 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 $$\hbox {SiO}_{2}\hbox {-STF}$$ SiO 2 -STF and became highly remarkable with $$\hbox {Nd}_{2}\hbox {O}_{3}$$ Nd 2 O 3 particle mass fraction increase.

中文翻译：

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基于二氧化硅和氧化钕纳米粒子的剪切增稠液

基于二氧化硅和氧化钕纳米粒子的剪切增稠液 (STF) 的流变性能 ($$\hbox {Nd}_{2}\hbox {O}_{3}\hbox {/SiO}_{2}\hbox {-STF}$$ Nd 2 O 3 /SiO 2 -STF ) 在本研究中进行了研究。$$\hbox {Nd}_{2}\hbox {O}_{3}\hbox {/SiO}_{2}\hbox {-STF}$$ Nd 2 O 3 /SiO 2 -STF 各种悬浮液使用超声波振荡器制备浓度 (9–15 wt%)。$$\hbox {Nd}_{2}\hbox {O}_{3}$$ Nd 2 O 3 粒子的存在及其与$$\hbox {Nd}_{2}\ 中二氧化硅纳米粒子的相互作用hbox {O}_{3}\hbox {/SiO}_{2}\hbox {-STF}$$ Nd 2 O 3 /SiO 2 -STF 使用扫描电子显微镜、X 射线衍射和能量色散光谱进行分析. $$\hbox {Nd}_{2}\hbox {O}_{3}\hbox {/SiO}_{2}$$ Nd 2 O 3 /SiO 2 相互作用表明二氧化硅纳米粒子可以完全附着在$$\hbox {Nd}_{2}\hbox {O}_{3}$$ Nd 2 O 3 粒子的针状分支，形成了相当大的聚集效应。稳定的流变测试结果表明，适量的$$\hbox {Nd}_{2}\hbox {O}_{3}$$ Nd 2 O 3 颗粒导致峰值粘度从51.95（ $$\hbox {SiO}_{2}\hbox {-STF}$$ SiO 2 -STF ) 至 218.94 Pa.s ( $$\hbox {Nd}_{2}\hbox {O}_{3} \hbox {/SiO}_{2}\hbox {-STF}$$ Nd 2 O 3 /SiO 2 -STF )，并且临界剪切速率从 199.65 ( $$\hbox {SiO}_{ 2}\hbox {-STF}$$ SiO 2 -STF ) 到 $$\hbox {50.18 s}^{-1}$$ 50.18 s - 1 ( $$\hbox {Nd}_{2}\hbox { O}_{3}\hbox {/SiO}_{2}\hbox {-STF}$$ Nd 2 O 3 /SiO 2 -STF）。而且，