Effect of temperature on gas production from hydrate-bearing sediments by using a large 196-L reactor

Wang, Yunfei; Wang, Ling-Ban; Li, Yang; Gu, Jin-Xiang; Sun, Chang‐Yu; Chen, Guangjin; Wang, Xiaohui; Yuan, Qing; Li, Nan

doi:10.1016/j.fuel.2020.117963

Cited by 16 publications

(1 citation statement)

References 48 publications

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“…It can be seen that the temperature (∼120 °C) and pressure (∼0.33 MPa) in the autoclave are not high and almost stable in the heat-preservation stage, which means that the whole hydrothermal process is easily implemented in industrial application. The preparation of large-scale metal materials can be realized by treating metals in a large volume reactor, such as industrial reactors which have been widely used in petroleum, chemical industry, rubber, and other fields. , Further in consideration of the environment-friendly and cost-effective features of the reagent-free hydrothermal method proposed here, it is expected to find more applications in surface engineering of magnesium alloys, which also bring new insights into conveniently constructing colorful surfaces with mechanical robustness on other metallic materials.…”

Section: Resultsmentioning

confidence: 99%

Constructing Colorful Surfaces with Mechanical Robustness for Magnesium Alloys via a Reagent-Free Method

Лю

Lei

et al. 2020

ACS Appl. Mater. Interfaces

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The colorful and mechanically robust surfaces of metallic materials are important for their applications in electronics, automobile, aerospace, and so on, but it is challenging to prepare them at a reasonable cost. Herein, we propose a simple, environment-friendly, and cost-effective method, reagent-free hydrothermal treatment, to prepare colorful surfaces of magnesium alloys with mechanical robustness. The as-treated surface mainly composes of magnesium (hydr)oxides with a biomimetic microstructure, whose thickness and roughness increase linearly with the hydrothermal time. By adjusting the hydrothermal time, a series of surface colors of magnesium alloys are obtained because of light interference. The as-treated surface with film thickness more than 1.1 μm exhibits high Vickers hardness (∼500 HV), low friction coefficient (∼0.26), and low wear rate (1.06 × 10–5 mm3·N–1·m–1), which is superior to most magnesium alloys after surface treatments. The microstructure of the as-treated surface can be retained after harsh tribological tests, demonstrating attractive mechanical robustness. Furthermore, the method proposed here was extended to the surface treatments of other series of magnesium alloys, which verifies the great potential of this method for large-scale industrial application of colorful metallic materials with mechanical robustness.

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Section: Resultsmentioning

confidence: 99%