State of the art of lightweight aggregates used in lightweight refractories for working lining of high-temperature furnaces

Journal of Iron and Steel Research International, Год журнала: 2024, Номер 31(6), С. 1320 - 1343

Опубликована: Июнь 1, 2024

Язык: Английский

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In-situ formed silicon oxycarbide nanowires into porous SiC(rGO) PDCs enable balanced enhancement of robustness and thermal management

Composites Part B Engineering, Год журнала: 2024, Номер 287, С. 111828 - 111828

Опубликована: Сен. 10, 2024

Язык: Английский

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Light-weight high strength porous thermal insulation materials based on dolomite-granite waste

Ceramics International, Год журнала: 2024, Номер unknown

Опубликована: Окт. 1, 2024

Язык: Английский

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Controllable preparation and multifunctional application of high-strength porous anorthite ceramics

Ceramics International, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 1, 2024

Язык: Английский

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Thermal decomposition and non‐isothermal kinetics of microcrystalline magnesite

International Journal of Applied Ceramic Technology, Год журнала: 2025, Номер unknown

Опубликована: Фев. 4, 2025

Abstract The thermal decomposition (TD) of magnesite is crucial for its high‐value applications, and understanding reaction mechanisms requires establishing accurate kinetic models. This research investigates the TD kinetics microcrystalline under varying heating rates (HRs) using thermogravimetry differential scanning calorimetry (TG–DSC) analysis. Kinetic parameters were derived Coats–Redfern (CR), Kissinger–Akahira–Sunose (KAS), Flynn–Wall–Ozawa (FWO) methods. influence HRs on process resulting MgO morphology was analyzed. results demonstrated that as increased, rate curves shifted to higher temperatures, necessitating elevated temperatures similar levels decomposition. mean activation energy () calculated be 162.45 kJ/mol, with a strong linear correlation between pre‐exponential factor, suggesting robust compensation. followed two‐dimensional phase boundary mechanism cylindrical symmetry. “Original shape pseudomorphs” found significantly affect microstructure, particle size variation, behavior products. These findings provide important insights industrial processing magnesite.

Язык: Английский

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High-strength and damage-resistant ceramic nanowire Bouligand Architectures

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 162817 - 162817

Опубликована: Апрель 1, 2025

Язык: Английский

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Transpiration cooling performance of carbon fiber oxidation-induced Mullite/Al2O3 porous ceramic composite for hypersonic vehicles

International Communications in Heat and Mass Transfer, Год журнала: 2025, Номер 165, С. 108991 - 108991

Опубликована: Апрель 29, 2025

Язык: Английский

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Effect of zirconia content and mesoscopic distribution on properties of MgO-MgAl2O4-ZrO2 refractory raw material derived from Mg resources in salt lakes

Journal of environmental chemical engineering, Год журнала: 2025, Номер unknown, С. 116900 - 116900

Опубликована: Май 1, 2025

Язык: Английский

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Controlled Fabrication of Porous SiOC Ceramic Bulks via Precursor Conversion Combined with the Emulsion Method

Ceramics International, Год журнала: 2025, Номер unknown

Опубликована: Июнь 1, 2025

Язык: Английский

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Preparation and Properties of Lightweight Aggregates from Discarded Al2O3-ZrO2-C Refractories

Materials, Год журнала: 2024, Номер 17(16), С. 3968 - 3968

Опубликована: Авг. 9, 2024

Refractory materials are an important pillar for the stable development of high-temperature industry. A large amount waste refractories needs to be further disposed every year, so it is great significance carry out research on recycling used refractories. In this work, lightweight composite aggregate was prepared by using discarded Al2O3-ZrO2-C as main raw material, and performance improved adjusting calcination temperature introducing light calcined magnesia additives. The results showed that cold compressive strength thermal shock resistance aggregates were significantly with increasing temperature. Moreover, introduction can effectively improve apparent porosity, strength, at 1400 °C. Consequently, work provides a useful reference resource utilization refractories, while expected applied in field insulation.

Язык: Английский

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