Effect of Fe<sub>2</sub>O<sub>3</sub> Concentration on the Properties of Basalt Glasses

Chen, Meirong; Liu, Jianxun; Wu, Zhishen

doi:10.1080/15440478.2020.1758277

Cited by 12 publications

(3 citation statements)

References 36 publications

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“…What is important, hematite concentration has a great influence on the thermal and elastic properties of basalt products, e.g. basalt fiber (Chen et al 2022).…”

Section: Ismentioning

confidence: 99%

High temperature transformation of iron-bearing minerals in basalt: Mössbauer spectroscopy studies

2022

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The high temperature decomposition of basalt from Lower Silesia (Poland) was followed by Mössbauer spectroscopy investigation. The Fe content of the sample was ~9.0 at.%. The X-ray diffraction analysis shows that augite (37%) and olivine (12%) are major Fe-bearing mineral components. The sample also contains significant amount of anorthite (22%) and nepheline (17%). The sample was heated at various temperatures between 200°C and 1100°C for three hours. Up to a temperature of 500°C changes in contribution of Fe-bearing minerals are insignificant. Heating in the temperature range from 500°C to 1100°C leads to a systematic increase in contribution of iron oxides at the cost of contribution of silicate minerals, like augite and olivine. Mössbauer spectrum obtained after heating at 1100°C showed hematite as the main iron oxide phase. The ratio of Fe3+/Fetot in the non-heated sample was equal to 0.51 and after heating at 1100°C this ratio amounted to 0.89.

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“…What is important, hematite concentration has a great influence on the thermal and elastic properties of basalt products, e.g. basalt fiber (Chen et al 2022).…”

Section: Ismentioning

confidence: 99%

High temperature transformation of iron-bearing minerals in basalt: Mössbauer spectroscopy studies

2022

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“…4,5,25 The addition of CaO can prevent the growth of spinel, weaken the melt crystallization trend, and improve the tensile strength of BCF by 13.1% with an addition of 3.0% wt. 26 The redox state of iron plays an important role in the crystallization of BCF, 27,28 and more conversion of Fe 3+ to Fe 2+ could reduce the spontaneous crystallization of BCF glasses and increase the tensile strength of BCF. 29,30 It is believed that a smaller ratio of Fe 3+ /(Fe 2+ +Fe 3+ ) is beneficial for increasing the tensile strength of BCF.…”

Section: Introductionmentioning

confidence: 99%

Prediction of tensile strength of basalt continuous fiber from chemical composition using machine learning models

et al. 2023

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Tensile strength is the major mechanical property of basalt continuous fiber and is closely related to their chemical composition. This study constructed a machine learning model framework to predict the tensile strength of basalt continuous fiber. The database included the characteristic variables of oxides and their derived parameters, as well as the target variables of tensile strength. The mean squared error (MSE) were calculated to evaluate the performance of six machine learning models of decision tree, kernel ridge regression, multivariable linear regression, support vector regression, random forest, and k‐nearest neighbors. The k‐nearest neighbors model had a minimum MSE and was tuned using the grid search method with cross‐validation. The optimal hyper‐parameters of the k‐nearest neighbors model were K = 6, p = 10, and the determination coefficient of the model reached the maximum of 0.7110 on the test data. The limitations and implications of the present study were also demonstrated. We finally expected that the constructed framework could achieve higher prediction accuracy for tensile strength at a low cost in the future.Highlights A machine learning framework was built to predict the tensile strength of BCF. Oxides and their derived parameters were used for modeling. K‐nearest neighbors performed best in predicting the tensile strength. The framework was robust, cost‐saving, and efficient.

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“…Basalt fiber (BF) is made by continuously drawing from a platinum-rhodium alloy bushing plate [ 1 , 2 ] where the pure basalt rocks are melting at around 1300–1500 °C. Compared with other inorganic fiber materials such as ordinary glass fiber and mineral wool fiber, basalt fiber has good high-temperature resistance and corrosion durability [ 3 , 4 , 5 , 6 ], and a similar composition to natural soil, so it has been widely used in reinforced construction materials to improve the mechanical properties and chemical stability of construction [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Effect of Seawater Environment on the Structure and Performance of Basalt Continuous Fiber

2021

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Basalt continuous fibers (BFs) have been widely applied in the construction industry including marine applications, however, the corrosion mechanism of BFs in a seawater environment is still not well understood. In this work, we explored the effect of the seawater environment on the weight loss, tensile strength, surface morphology, and microstructure structure of BFs via soaking the BFs in seawater solutions at different temperatures and durations. Results show that the weight loss ratio of BFs decreases at the first stage (around 18 h) of soaking at 80 °C, 85 °C, and 90 °C and then increases for longer soaking durations, while the tensile strength has the opposite change. This enhancement of tensile strength and chemical resistance (at the first stage of seawater soaking) is dominated by the ion-exchange induced ‘blunting’ mechanism, even though the results from a Fourier transform infrared (FT-IR) spectrometer and energy-dispersive spectroscopy (EDS) revealed the damaging of the Si–O–Si tetrahedral structure during the corrosion process. This work revealed the full corrosion process and corresponding mechanism of BFs in a seawater environment.

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Effect of Fe₂O₃ Concentration on the Properties of Basalt Glasses

Cited by 12 publications

References 36 publications

High temperature transformation of iron-bearing minerals in basalt: Mössbauer spectroscopy studies

High temperature transformation of iron-bearing minerals in basalt: Mössbauer spectroscopy studies

Prediction of tensile strength of basalt continuous fiber from chemical composition using machine learning models

Effect of Seawater Environment on the Structure and Performance of Basalt Continuous Fiber

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Effect of Fe2O3 Concentration on the Properties of Basalt Glasses

Cited by 12 publications

References 36 publications

High temperature transformation of iron-bearing minerals in basalt: Mössbauer spectroscopy studies

High temperature transformation of iron-bearing minerals in basalt: Mössbauer spectroscopy studies

Prediction of tensile strength of basalt continuous fiber from chemical composition using machine learning models

Effect of Seawater Environment on the Structure and Performance of Basalt Continuous Fiber

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Effect of Fe₂O₃ Concentration on the Properties of Basalt Glasses