J L Hu, P Wang, Y H Jia, Z Ch Fang, F Q Huang, J Guo, B Zhang
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引用次数: 0
摘要
为了现场高精度测量熔体扩散,本文提出了一种多切片滑动射线摄影技术。该技术结合了多滑动单元技术和 X 射线射线摄影技术,并继承了两者的优点。它不仅能将扩散过程可视化,而且适用于低吸收对比度甚至无吸收对比度体系的扩散系数测量。此外,通过引入同位素,原则上可以同时高精度地测量自扩散和相互扩散。本文报告了与该技术的设计和实验有关的细节。在 Al80Cu20 熔体中进行的测量证明了该技术的可靠性和有效性。
A liquid metal diffusion measurement technique integrating the x-ray radiography and multi-slice sliding cell.
For measuring melt diffusion with in situ and high accuracy, this paper proposes a multi-slice sliding radiography technique. This technique combines the multi-sliding cell technique and x-ray radiography and inherits the advantages of both. It not only visualizes the diffusion process but is also suitable for the diffusion coefficient measurement of systems with low or even no absorption contrast. In addition, by introducing isotopes, self-diffusion and interdiffusion can, in principle, be measured simultaneously with high precision. The details related to the design of this technique and the experiments are reported in this paper. Reliability and validity of this technique are demonstrated by its measurements in Al80Cu20 melt.
期刊介绍:
Review of Scientific Instruments, is committed to the publication of advances in scientific instruments, apparatuses, and techniques. RSI seeks to meet the needs of engineers and scientists in physics, chemistry, and the life sciences.