Journal of Sol-Gel Science and Technology, Journal Year: 2024, Volume and Issue: unknown
Published: Dec. 28, 2024
Language: Английский
Ceramics International, Journal Year: 2025, Volume and Issue: unknown
Published: April 1, 2025
Language: Английский
Citations
0
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown
Published: April 25, 2025
Element-hybrid phenolic aerogel composites are often utilized as lightweight thermal protection materials for aerospace craft. Zr-phenolic (Zr-PR) aerogels have been extensively studied due to their exceptional high-temperature resistance. However, the phase transformation of ZrO2, pyrolysis product Zr-PR, caused volume changes and internal stresses, greatly limiting application Zr-PR. In this work, a small amount nano-Y2O3 particles was directly doped into Zr-PR form nanoscale mosaic structure. This composite exhibited properties low density (0.51 g/cm3) conductivity (<0.151 W/(m K)); moreover, it showed significant improvement in oxidative ablation resistance with 33% reduction linear rate. The research indicated that doping effectively addressed adverse effects associated ZrO2 by situ rapidly forming (<60s) dense yttria-stabilized zirconia (YSZ) barrier layer on surface, which significantly delayed thermal-oxidative composites. Additionally, pyrolytic carbon (PyC) surface can abundant multilayered graphene structures catalytic graphitization effect produced solid-solution reaction YSZ, further enhanced oxidation work provides simple efficient approach improve performance composites, broadening extreme environments.
Language: Английский
Citations
0
ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: unknown
Published: April 26, 2025
With the development of building energy efficiency, battery thermal management, aerospace, and other fields, performance requirements insulation materials are increasing. Aerogels porous with three-dimensional nanostructures extremely low density conductivity. In recent years, aerogels have attracted much attention in due to their excellent properties. This paper reviews design, preparation, application aerogels. First, preparation methods oxides, carbides, nitrides, polymer introduced. Then, progress various scenarios is analyzed. addition, challenges prospects future research on for discussed.
Language: Английский
Citations
0
Ceramics International, Journal Year: 2025, Volume and Issue: unknown
Published: May 1, 2025
Language: Английский
Citations
0
Polymer Degradation and Stability, Journal Year: 2025, Volume and Issue: unknown, P. 111427 - 111427
Published: May 1, 2025
Language: Английский
Citations
0
Coatings, Journal Year: 2024, Volume and Issue: 14(6), P. 678 - 678
Published: May 28, 2024
In recent years, organic superhydrophobic coatings have emerged as a promising direction for the protection of metal substrates due to their excellent liquid-repelling properties. Nonetheless, these face challenges such poor mechanical robustness and short service lives, which limited development garnered attention from numerous researchers. Over time, researchers gained deeper understanding published many related articles. Nevertheless, lack logical organization systematic summarization research focus in this field hinders its advancement. Therefore, main purpose review is clarify design principles working mechanisms coatings, well summarize synthesize latest on different aspects including liquid-repellent performance, wear resistance, adhesion, antibacterial properties, self-healing By employing decoupling study each performance aspect separately, aims provide references extending life coatings.
Language: Английский
Citations
2
Advanced Materials, Journal Year: 2024, Volume and Issue: unknown
Published: Nov. 13, 2024
Ceramic aerogels hold significant potential for thermal insulation, yet their mechanical stretchability and stability fall short in extreme environments. Here, the study presents a programmable shape-morphing strategy aimed at engineering binary network topology structure within ceramic to effectively dissipate stress block heat transfer. The special design, which includes kirigami lamellated bearing loading randomly assembled energy pre-storage transfer tensile stress, achieves unexpected properties stability. resulting robust meta-aerogels demonstrate remarkable structural with topology-derived of up 85% strain, excellent resilience 500 cycles 50% 1000 60% buckling compressive temperature-invariant recovery capability; simultaneously, low conductivity 33.01 mW m
Language: Английский
Citations
2
ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(44), P. 60783 - 60799
Published: Oct. 22, 2024
Ceramic aerogels prepared by the route of polymer-derived ceramics (PDCs) have been significant attention in high-temperature insulation. However, application ceramic was seriously confined due to structural damage and shrinkage cracking precursors during pyrolysis. In this investigation, precursor microsphere with outstanding antishrinkage properties were storing strain curled molecular chains using polysilazane (PSZ) as precursor. Meanwhile, different chain structures modulating solvent interactions cross-linked structures. Different formed, impact on analyzed. The resistance, thermal insulation, mechanical tested compared. Furthermore, mechanism insulation investigated through multiscale simulations combined fractal theory. stress transfer at interfaces skeleton mechanisms investigated. An idea for solving problem pyrolytic preparation provided investigation. addition, insights into influence structure provided.
Language: Английский
Citations
1
Journal of Porous Materials, Journal Year: 2024, Volume and Issue: 31(5), P. 1753 - 1762
Published: May 16, 2024
Language: Английский
Citations
0
Applied Thermal Engineering, Journal Year: 2024, Volume and Issue: 259, P. 124908 - 124908
Published: Nov. 10, 2024
Language: Английский
Citations
0