通过引入纳米级添加剂诱导冰断裂的延展模式并大幅提高其断裂能量

IF 0.6 4区 材料科学 Q4 CRYSTALLOGRAPHY Crystallography Reports Pub Date : 2024-09-27 DOI:10.1134/S1063774524601473
Yu. I. Golovin, V. M. Vasyukov, V. V. Rodaev, A. A. Samodurov, D. Yu. Golovin, A. I. Tyurin, S. S. Razlivalova, V. M. Buznik
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引用次数: 0

摘要

冰的强度低、脆性大,但其他特性却非常吸引人,这限制了它作为建筑材料在地球寒冷气候地区(北极、南极和各大洲的高海拔地区)以及多个国家计划的月球和火星宜居殖民地建设中的广泛应用。我们通过实验研究了通过在冰及其纳米复合材料的成分中引入聚乙烯醇和二氧化硅纳米颗粒来提高冰及其纳米复合材料的承载能力和断裂能的可能性。研究了改善这些机械特性的效果的浓度依赖性。随着冰复合材料中添加剂含量的增加,从纯冰的脆性断裂模式过渡到韧性模式的基本可能性和定量规律已经确定,其断裂能也随之大幅增加(两到三个数量级)。
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Induction of Ductile Modes of Ice Fracture and Drastic Enhancement of Its Fracture Energy by Means of Introduction of Nanoscale Additives

The low strength and high brittleness of ice, with all attractiveness of its other properties, limit its wide application as a construction material in cold climate regions on the Earth (Arctic, Antarctic, and high-altitude regions on all continents) as well as in construction of habitable colonies on the Moon and Mars, planned by several countries. We experimentally investigated the possibility of increasing the bearing capacity and fracture energy of ice and nanocomposites on its basis by introduction of polyvinyl alcohol and SiO2 nanoparticles into their composition. The concentration dependences of the effects improving these mechanical characteristics have been studied. The fundamental possibility and quantitative laws of the transition from the brittle fracture mode in pure ice to the ductile mode with an increase in the content of additives in ice composites and, as a consequence, dramatic (by two to three orders of magnitude) increase in their fracture energy have been established.

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来源期刊
Crystallography Reports
Crystallography Reports 化学-晶体学
CiteScore
1.10
自引率
28.60%
发文量
96
审稿时长
4-8 weeks
期刊介绍: Crystallography Reports is a journal that publishes original articles short communications, and reviews on various aspects of crystallography: diffraction and scattering of X-rays, electrons, and neutrons, determination of crystal structure of inorganic and organic substances, including proteins and other biological substances; UV-VIS and IR spectroscopy; growth, imperfect structure and physical properties of crystals; thin films, liquid crystals, nanomaterials, partially disordered systems, and the methods of studies.
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