Viscous flow behavior of selenium
Viscous flow behavior of selenium
复制标题
硒的粘性流动行为
DOI：
10.1016/0022-3093(73)90069-0
复制
发表时间：
1973
影响因子：
3.5
通讯作者：
D. Uhlmann
中科院分区：
文献类型：
--
作者：
M. Cukierman;D. Uhlmann
在可避免结晶的温度范围内测定了99.99%纯硒的粘度。在高粘度区采用弯曲梁粘度计测量，在低粘度区采用旋转圆筒仪测量。还测定了在31.5 ° C和29.6°C的温度下粘度的应力依赖性。发现非牛顿流的临界应力在数百psi的范围内，这明显小于在类似粘度范围内的氧化物液体的临界应力。
The viscosity of 99.99% pure selenium has been determined over the available range of temperature where crystallization could be avoided. A bending beam viscosimeter was used to obtain data in the high viscosity region, and a rotating cylinder instrument was employed for the low viscosity range. Also determined was the stress dependence of the viscosity at temperatures of 31.5 and 29.6°C. The critical stress for non-Newtonian flow was found to lie in the range of hundreds of psi, which is appreciably smaller than that for oxide liquids in a similar range of viscosity.