Mechanical degradation of basalt fiber at elevated temperatures (300∼360 °C) studied through semi-quantitative analysis of X-ray photoelectron spectrometry

IF 3.2 3区材料科学 Q1 MATERIALS SCIENCE, CERAMICS

Journal of Non-crystalline Solids Pub Date : 2024-10-30 DOI:10.1016/j.jnoncrysol.2024.123269

Zhaotian Wang , Xin Liu , Hongjie Luo , Lu Zhang , Hao Jiang

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Abstract

This work conducted a semi-quantitative analysis of structural variations in the surfaces and interiors of basalt fibers at 300 °C∼360 °C using X-ray photoelectron spectrometry. The proportions of non-bridging oxygen (NBO) of fiber surfaces are significantly higher than those in the interiors, due to the surface oxidation that occurs during the fiber manufacturing process. After heat treatment, the NBO contents of the interiors significantly exceeded those of the surfaces, indicating that the oxidation of the fibers is intrinsic and independent of environmental oxygen. Tensile tests showed that the structural variation of the fiber interior affects the fiber modulus, while that of the surface affects the growth of surface flaws, which manifests as the reduction of breaking elongation. This study presents an analytical method that contributes to a deeper understanding of the mechanisms underlying the mechanical degradation of those basaltic fibers at elevated temperatures.

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通过 X 射线光电子能谱半定量分析研究玄武岩纤维在高温（300∼360 °C）下的机械降解情况

这项研究利用 X 射线光电子能谱仪对 300 °C∼360 °C 下玄武岩纤维表面和内部的结构变化进行了半定量分析。由于纤维在制造过程中会发生表面氧化，因此纤维表面的非桥接氧（NBO）比例明显高于内部。热处理后，内部的非桥接氧含量明显超过表面，这表明纤维的氧化是内在的，与环境中的氧气无关。拉伸试验表明，纤维内部的结构变化会影响纤维模量，而表面的结构变化则会影响表面缺陷的增长，表现为断裂伸长率的降低。这项研究提出了一种分析方法，有助于更深入地了解这些玄武岩纤维在高温下机械降解的内在机理。

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来源期刊

Journal of Non-crystalline Solids 工程技术-材料科学：硅酸盐

CiteScore

6.50

自引率

11.40%

发文量

576

审稿时长

35 days

期刊介绍： The Journal of Non-Crystalline Solids publishes review articles, research papers, and Letters to the Editor on amorphous and glassy materials, including inorganic, organic, polymeric, hybrid and metallic systems. Papers on partially glassy materials, such as glass-ceramics and glass-matrix composites, and papers involving the liquid state are also included in so far as the properties of the liquid are relevant for the formation of the solid. In all cases the papers must demonstrate both novelty and importance to the field, by way of significant advances in understanding or application of non-crystalline solids; in the case of Letters, a compelling case must also be made for expedited handling.