Abstract

This paper presents a study of the influence of basalt rocks’ phase composition, acidity modulus, and structural parameter NBO/T on the tensile strength and elastic modulus of basalt continuous fibers (BCFs) derived from them. A series of BCF samples based on 14 different basalt deposits was obtained under equal conditions. The tensile strength and elastic modulus of the BCFs from different deposits vary in the ranges of 1495–3380 MPa and 58.2–78.7 GPa, respectively. Using the original method of quantitative phase analysis based on the Rietveld method, the phase compositions of the 14 deposits were defined. All deposits can be used to obtain BCFs. In the studied natural rocks, the main component is tectosilicates; the mass content of framework aluminosilicates is in the range of 16.5–3.3 mass percent. The second main component is inosilicates; the mass content of chain aluminosilicates is in the range of 6.0–58.0 mass percent. The correlations among phase composition, acidity modulus, ratio of non-bridging oxygens to tetrahedral cations, tensile strength, and elastic modulus of the BCFs from the 14 different basalt deposits were calculated. There were strong positive correlation between tectosilicate minerals mass content and elastic modulus [Pearson correlation coefficient (PCC) of 0.7] and strong negative correlation between content of chain and layered aluminosilicates and elastic modulus (PCC of − 0.74).

中文翻译：

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天然玄武岩连续纤维的相组成，结构和力学性能的相关性

摘要

本文研究了玄武岩岩石的相组成，酸度模量和结构参数NBO / T对衍生自它们的玄武岩连续纤维（BCFs）的拉伸强度和弹性模量的影响。在相同条件下获得了一系列基于14种不同玄武岩矿床的BCF样品。来自不同沉积物的BCF的拉伸强度和弹性模量分别在1495-3380 MPa和58.2-78.7 GPa的范围内变化。使用基于Rietveld方法的原始定量相分析方法，确定了14个矿床的相组成。所有存款均可用于获取BCF。在研究的天然岩石中，主要成分是硅硅酸盐。骨架硅铝酸盐的质量含量在16.5-3.3质量百分比的范围内。第二个主要成分是硅酸盐。链状硅铝酸盐的质量含量在6.0-58.0质量％的范围内。计算了14种玄武岩沉积物中BCF的相组成，酸度模量，非桥连氧与四面体阳离子的比率，抗张强度和弹性模量之间的相关性。层状硅酸盐矿物含量与弹性模量之间的正相关性很强[Pearson相关系数（PCC）为0.7]，而链状硅酸盐和层状硅铝酸盐的含量与弹性模量之间的强负相关性（PCC为-0.74）。计算了14种不同玄武岩沉积物中BCF的弹性模量。层状硅酸盐矿物含量与弹性模量之间的正相关性很强[Pearson相关系数（PCC）为0.7]，而链状硅酸盐和层状硅铝酸盐的含量与弹性模量之间的强负相关性（PCC为-0.74）。计算了14种不同玄武岩沉积物中BCF的弹性模量。层状硅酸盐矿物含量与弹性模量之间的正相关性很强[Pearson相关系数（PCC）为0.7]，而链状硅酸盐和层状硅铝酸盐的含量与弹性模量之间的强负相关性（PCC为-0.74）。