ВПЛИВ ШОРСТКОСТІ НА ФІЗИКО-ХІМІЧНІ ВЛАСТИВОСТІ СТАЛІ А36: ДОСЛІДЖЕННЯ АДГЕЗІЇ ФОСФАТІВ DOI Open Access

Юсеф Наджіх,

Mustapha Adar,

Маджда Медкур

и другие.

Journal of Chemistry and Technologies, Год журнала: 2023, Номер 31(3), С. 581 - 589

Опубликована: Окт. 28, 2023

У цій роботі обговорюється вплив шорсткості поверхні та фізико-хімічних властивостей на початкову адгезію фосфатів до сталі. Зразки сталі, використані в цьому дослідженні, виготовлені з низьколегованої сталі A36. Фосфат був видобутий районі Бен-Гурір-Марокко і використовувався у вигляді гранул, спресованих під різними тисками. Сталеву поверхню обробляли двома методами попередньої обробки – хонінгуванням горизонтальним фрезеруванням. Досліджено цих процедур морфологію поверхні, шорсткість, поверхневу енергію гідрофобність. Вимірюючи кут контакту поверхнях фосфатних гранул підкладок А36, ми змогли визначити деякі фізико-хімічні параметри розрахувавши енергію. Крім того, шорсткість кожного сталевого зразка була досліджена за допомогою вимірювача металургійного мікроскопа. Отримані результати показали, що фосфатована поверхня піддається впливу дисперсійних сил має гідрофільний характер. Для поверхонь різних зі А36 добре досліджено шорсткості, отримано мінімальну як для (хонінгування горизонтального фрезерування), так визначеної шорсткості. Цей результат може бути використаний підготовки мінімальною поверхневою енергією мінімізації енергії руйнування і, отже, адгезії засмічення фосфатами

Inadequacy of Peak Detachment Force in Describing Ice Adhesion Strength: the Critical Role of Shear Force–Time Evolution in Icephobicity Assessment DOI
Navid Mostofi Sarkari, Luca Stendardo,

Zoé Roche

и другие.

Advanced Engineering Materials, Год журнала: 2025, Номер unknown

Опубликована: Апрель 1, 2025

Icephobicity encompasses a multifaceted definition that necessitates evaluations across various scales, from single droplets to larger ice specimens. The predominant method for evaluating icephobicity performance is adhesion strength (IAS) testing. Multiple geometries and scales testing are proposed. conventional key parameter derived this test analysis the peak detachment force value, which subsequently converted IAS (stress). Recent studies raise questions regarding approach challenge its adequacy comprehensive assessment. To achieve more profound understanding of phenomena involved, study utilizes three distinct benches, all in horizontal shear geometry but under varying conditions. findings indicate values do not necessarily reflect actual behavior. However, versus time evolution (obtained force–time plots) can provide valuable insights into icephobicity, including viscoelastic response coatings underlying failure mechanisms. beneficial aspects additionally validated context investigating coating durability through consecutive (icing/ice detachment) cycles, wherein methodologies, such as wetting morphological parameters, fail capture deterioration.

Язык: Английский

Процитировано

0

Passive Ice Protection Systems for Unmanned Aerial Vehicles Applications: A Review DOI Creative Commons

Lorenzo Facco,

Riccardo Parin, Maria Basso

и другие.

Small, Год журнала: 2025, Номер unknown

Опубликована: Апрель 21, 2025

Abstract Unmanned aerial vehicles (UAVs) are promising platforms for operations in alpine regions due to their compact size, advanced camera systems, and ability take off land confined areas. In such conditions, one of the most significant challenges UAVs is operating icing environments, as ice accretion can compromise aerodynamics propellers potentially lead fto a loss control vehicle failure. To date, active de‐icing solutions, electrothermal have been employed aeronautical sector; however, these systems energy‐intensive. This review addresses passive protection from material science prospective, by focusing on coatings which mitigate formation without energy consumption. A comprehensive description strategies design an icephobic surface presented state‐of‐the‐art analyzed, superhydrophobic surfaces, elastomers, liquid infused gels, polyelectrolytes, sol gel coatings, metal‐organic frameworks. key focus devoted characterizations assessing mitigation i.e., contact angle hysteresis measurements, correlation between durability number cycles. The relevant solutions described final part this review.

Язык: Английский

Процитировано

0

The Influence of Anisotropic Microstructures on the Ice Adhesion Performance of Rubber Surfaces DOI Open Access
Fangyuan Zhang, Xiaosen Wang, Shilin Zhang

и другие.

Coatings, Год журнала: 2025, Номер 15(5), С. 612 - 612

Опубликована: Май 21, 2025

Anti-icing and de-icing technologies are crucial in modern aviation, with optimising ice adhesion performance on material surfaces being a key challenge. This study proposes straightforward method for fabricating hydrophobic silicone rubber using mesh to construct microstructures. The influence of microstructure size anisotropy surface wettability is systematically investigated. experimental results demonstrate that introducing microstructures significantly enhances the hydrophobicity surfaces, achieving maximum static contact angle 149.3 ± 1.3°. For identical shapes, dimensional variations affect roughness functional performance. Although structure most significant dimension (600#-SR) exhibits highest roughness, smaller structures (e.g., 1400#-SR) superior lower strength, likely due enhanced air entrapment reduced effective solid–liquid solid–ice areas. Furthermore, anisotropic microstructures, marked directional difference strength observed: lowest X direction 38.6 kPa, compared 63.3 kPa Y direction. Fine-tuning configuration effectively minimises enables targeted optimisation properties. research offers theoretical support developing innovative, energy-efficient materials anti-icing properties provides new insights crafting solutions tailored various needs.

Язык: Английский

Процитировано

0

A stress-based criterion for interpreting size-dependent ice debonding behavior DOI

Tianhui Hao,

Lin Zhao, Yongpeng Lei

и другие.

International Journal of Mechanical Sciences, Год журнала: 2025, Номер 300, С. 110436 - 110436

Опубликована: Май 27, 2025

Язык: Английский

Процитировано

0

Experimental study on the low-temperature performance and evaluation methods of crack sealants for asphalt pavements in seasonal frozen regions DOI Creative Commons

Rongsen He,

Liang Xu, Wang We

и другие.

Scientific Reports, Год журнала: 2025, Номер 15(1)

Опубликована: Май 27, 2025

Язык: Английский

Процитировано

0

Effect of lubricant loading in slippery liquid-infused surface for persistent anti-icing performance DOI

Jiaqi Deng,

Yi Guo, Haoyang Yu

и другие.

Progress in Organic Coatings, Год журнала: 2024, Номер 197, С. 108797 - 108797

Опубликована: Сен. 11, 2024

Язык: Английский

Процитировано

2

Experimental debate on the overlooked fundamental concepts in surface wetting and topography vs. ice adhesion strength relationships DOI
Navid Mostofi Sarkari, A. Peralta, Merve Kübra Aktan

и другие.

Journal of Colloid and Interface Science, Год журнала: 2024, Номер 682, С. 825 - 848

Опубликована: Ноя. 22, 2024

Язык: Английский

Процитировано

2

Review on Icephobicity of Materials Surface Enhanced by Interface Action Force DOI Creative Commons
Lingfeng Zhao, Yizhou Shen, Jie Tao

и другие.

Advanced Materials Interfaces, Год журнала: 2024, Номер unknown

Опубликована: Дек. 1, 2024

Abstract In response to the hazards of icing in energy, transportation, and aerospace sectors, extensive research has been conducted on anti‐icing materials based solid‐liquid/ice interface theory, as well reliable chemical electro‐thermal de‐icing systems. However, there is an urgent need for modernizing systems address diverse application scenarios. Gaining insights into influence action forces water droplet behavior can proactively prevent detrimental occurrences. Nevertheless, under severe conditions where ice formation inevitable, leveraging induce cracking expansion facilitates its rapid detachment despite potential challenges associated with complete removal. A comprehensive review elucidating mechanisms through which impact water/ice formations encompasses various approaches toward designing mechanically‐driven

Язык: Английский

Процитировано

1

Discontinuity-Enhanced Icephobic Surfaces for Low Ice Adhesion DOI
Pablo F. Ibáñez-Ibáñez, Luca Stendardo, Catalina Ospina

и другие.

Опубликована: Янв. 1, 2024

Язык: Английский

Процитировано

0

Slip-Resistant Connections with Hot-Dip Galvanized Faying Surface Under Freeze-Thaw Cycles and/or Low Temperature DOI Open Access

Alezaundra Garcia,

Miguel A. Serrano, Carlos López-Colina Pérez

и другие.

Materials, Год журнала: 2024, Номер 18(1), С. 84 - 84

Опубликована: Дек. 28, 2024

In some occasions, outdoor steel structures like wind towers, bridges, winter sports facilities, and so on are subjected to extreme environmental conditions with the presence of ice and/or below-zero temperatures. Sometimes in these situations, surface protection structure is usually designed using hot-dip galvanizing improve its durability. special circumstances, structure’s connections also exposed adverse climatic agents. International standards codes such as Eurocode 3 or EN1090-2 do not provide indications for cases. this experimental research, 24 specimens non-slip joints galvanized faying surfaces HV M16 M20 bolts have been studied. Twelve were fourteen twelve-hour freeze-thaw cycles, temperature oscillation periodic immersion water. Next, six a slip test under monotonic load at −20 ± 0.5 °C other room temperature. The results compared kept cycles same period time. main conclusion piece research that short-term resistance behavior reduced cases

Язык: Английский

Процитировано

0