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您的检索式：作者名="Chaobin Fan"
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| 1 | Numerical Analysis of Residual Strength in the Perforated Casing of Ultra Deep Wells显示文摘A three-dimensional model for the numerical simulation of casing-cement behavior is used to investigate residual strength in the perforated casing of ultra deep wells.The influence of the hole diameter,hole density and phase angle on the residual strength of the casing under non-uniform stress and fracturing conditions is revealed through the consideration of different perforation parameters.It is shown that the residual strength of the casing increases with the hole diameter and periodically changes with the hole density;the phase angle is the main factor that affects the residual strength of the perforated casing,and the perforation should be avoided in the direction of the minimum principal stress to reduce stress concentration at the perforation hole.Moreover,as shown by a companion orthogonal experiment,the descending order of influence of the different influential parameters is:phase angle,hole diameter,hole density and the thickness of casing. | Yanxian Wu Shouming Zhong Zhigang Guan Lin Song Kun Li Jiarui Sun Yuqiang Xu Maochuan Tu Chaobin Fan Jinbin Yang | 2023 | Fluid Dynamics & Materials Processing2023，19，1： | 0 |
| 2 | New design for highly durable infrared-reflective coatings显示文摘The fundamental challenge in designing durable infrared-reflective coatings is achieving the ideal combination of both high reflectivity and durability.Satisfying these competing demands is traditionally achieved by deposition of durable layers on highly reflective metals.We overturn the traditional logic of‘first reflectivity and then durability’and propose an alternative of‘first durability and then reflectivity’:First,a transition-metal compound is selected as a durable base;then its reflectivity is improved by incorporating silver/gold to form an alloy or by overcoating a multilayer stack.Two validation experiments prove that the new strategy works extremely well:the coatings thus obtained have infrared reflectivities close to that of aluminum,and their hardness and acid and salt corrosion resistances are 27–50,400–1500 and 7500–25000 times that of aluminum.The traditional mirror coating(e.g.,Al/SiO2 films)is more suitable for moderate environments,while our mirror coating that was obtained by the new strategy(e.g.,an Ag-doped hafnium nitride film)is more suitable for harsh environments,such as ones with dust,windblown sand,moisture,acid rain or salt fog.This work opens up new opportunities for highly durable infrared-reflective coatings and rejuvenates the study of transition metal compounds in a completely new area of optics. | Chaoquan Hu Jian Liu Jianbo Wang Zhiqing Gu Chao Li Qian Li Yuankai Li Sam Zhang Chaobin Bi Xiaofeng Fan Weitao Zheng | 2017 | Light(Science & Applications)2017，6，1： | 0 |
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