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Chernobyl at 40 years: Looking back at Nuclear News
Sunday, April 26, at 1:23 a.m. local time will mark 40 years since the most severe nuclear accident in history: the meltdown of Unit 4 at the Chernobyl nuclear power plant in Ukraine, then part of the Soviet Union.
In the ensuing four decades, countless books, documentaries, articles, and conference sessions have examined Chernobyl’s history and impact from various angles. There is a similar abundance of outlooks in the archives of Nuclear News, where hundreds of scientists, advocates, critics, and politicians have shared their thoughts on Chernobyl over the years. Today, we will take a look at some highlights from the pages of NN to see how the story of Chernobyl evolved over the decades.
S. X. Zhao, F. Liu, S. G. Qin, J. P. Song, G.-N. Luo
Fusion Science and Technology | Volume 64 | Number 2 | August 2013 | Pages 225-229
Materials Development | Proceedings of the Twentieth Topical Meeting on the Technology of Fusion Energy (TOFE-2012) (Part 1), Nashville, Tennessee, August 27-31, 2012 | doi.org/10.13182/FST13-A18081
Articles are hosted by Taylor and Francis Online.
The first attempt at developing chopped W fiber-reinforced W (Wf/W) composites without an engineered interface or inter-phase employing hot isostatic pressing (HIP) has been made in order to study the feasibility of the powder metallurgy (PM) fabrication methodology. Micro-structures and flexural properties of sintered compacts have been examined by an optical microscope (OM), a scanning electron microscope (SEM) equipped with an electron back scattering diffraction (EBSD) instrument and three-point bending (3PB) tests. There are some chrysan-themum-like grains around each fiber in W matrices. Mechanical properties, namely strength and pseudo-plasticity, of the sintered compacts are far from satisfactory. Abnormal grain growth does not seem to have a preferential growing direction according to EBSD results. Possible causes for the abnormal grain growth and further mechanical property optimizations are hereby presented.
