Experimental study on freeze–thaw damage characteristics of coal samples of different moisture contents in liquid nitrogen

Abstract In this study, the surface crack-propagation law and pore damage characteristics of coal samples of different water contents after they undergo leaching in liquid nitrogen are investigated using a 4 K scientific-research camera, HC-U7 non-metal ultrasonic detector, nuclear magnetic resonanc...

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Bibliographic Details
Main Authors: Xiaoqi Wang, Xiaohan Qi, Heng Ma, Ke Gao, Shengnan Li
Format: Article
Language:English
Published: Nature Portfolio 2022-11-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-022-21961-3