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首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Description and interpretation of the two phase flow behaviour of melts with suspended crystals
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Description and interpretation of the two phase flow behaviour of melts with suspended crystals

机译：描述和解释具有悬浮晶体的熔体的两相流动行为

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摘要

New phenomenological flow equations, sigma(epsilon) and eta(epsilon), are developed for the non-Newtonian flow behaviour of suspended particles in a non-Newtonian fluid with 'shear-thinning effect'. These can also be used for glass-ceramic melts (crystals in high-viscous glass melts) based on the superposition of recently developed flow equations for the non-Newtonian flow behaviour of single-phase glass melts. The viscosity decrease of two-phase systems is a two-step decrease in contrast to the one-step decrease of one-phase fluids. This difference is shown experimentally and described well by these new equations. The measured values of two different glass-ceramic melts from the lithium disilicate systems were fitted by the equations with coefficients of regression, R(2) = 0.87 to 0.96.
机译：针对具有“剪切变稀效应”的非牛顿流体中悬浮颗粒的非牛顿流动行为，开发了新的现象流动方程，即sigma（ε）和eta（epsilon）。基于最近开发的单相玻璃熔体非牛顿流动特性的流动方程的叠加，这些也可用于玻璃陶瓷熔体（高粘度玻璃熔体中的晶体）。与单相流体的单步下降相比，两相系统的粘度下降是两步下降。实验表明了这种差异，这些新方程很好地描述了这种差异。来自二硅酸锂体系的两种不同的玻璃陶瓷熔体的测量值通过方程式拟合，其回归系数为R（2）= 0.87至0.96。

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