Application of Sound Waves During the Curing of an Acrylic Resin and Its Composites Based on Short Carbon Fibers and Carbon Nanofibers DOI Open Access
Braian Buitrago, Joana L. Rodrigues, Pedro Costa

и другие.

Materials, Год журнала: 2024, Номер 17(21), С. 5369 - 5369

Опубликована: Ноя. 2, 2024

Research into particulate polymer composites is of significant interest due to their potential for enhancing material properties, such as strength, thermal stability, and conductivity while maintaining low weight cost. Among the various techniques preparing particle-based composites, ultrasonic wave stimulation one principal laboratory-scale methods dispersion discontinuous phase. Nevertheless, there a scarcity empirical evidence substantiate impact stimulating materials with natural sound frequencies within acoustic spectrum, ranging from 20 Hz kHz, during formation process. The present work investigates effect stimuli 56, 111, 180 on properties an acrylic-based its carbon-based composites. results indicated that stimulus frequency affects cure time studied systems, notable reduction 31% 21% in times neat carbon-nanofiber-based respectively, after applying Hz. Additionally, higher reduced porosity samples, increased degree phase, altered composite materials’ thermal, optical, electrical behavior.

Язык: Английский

Recent Advances and Challenges for Biological Materials in Micro/Nanocarrier Synthesis for Bone Infection and Tissue Engineering DOI
Qinglin Xia,

Shuyan Zhou,

Jingya Zhou

и другие.

ACS Biomaterials Science & Engineering, Год журнала: 2025, Номер unknown

Опубликована: Март 11, 2025

Roughly 1.71 billion people worldwide suffer from large bone abnormalities, which are the primary cause of disability. Traditional grafting procedures have several drawbacks that impair their therapeutic efficacy and restrict use in clinical settings. A great deal work has been done to create fresh, more potent strategies. Under these circumstances, a crucial technique for regeneration major lesions emerged: tissue engineering (BTE). BTE involves biomaterials can imitate natural design bone. To yet, no biological material able fully meet parameters perfect implantable material, even though varieties created investigated regeneration. Against this backdrop, researchers focused interest over past few years on subject nanotechnology nanostructures regenerative medicine. The ability nanoengineered particles overcome current constraints strategies─such as decreased cell proliferation differentiation, insufficient mechanical strength materials, production extrinsic factors required effective osteogenesis revolutionized field engineering. effects nanoparticles characteristics application materials main topics our review, summarizes most recent vitro vivo research context BTE.

Язык: Английский

Процитировано

1

Ultrasonic Melt Processing: Progress, Applications, and Future Directions DOI Open Access
Shuang Yang, Yu Weng,

Zhao Qin

и другие.

Materials, Год журнала: 2025, Номер 18(3), С. 522 - 522

Опубликована: Янв. 23, 2025

Ultrasonic melt processing (UMP) has garnered significant attention from both academic and industrial communities as a promising solution to critical challenges in the metal casting industry. This technique offers clean, environmentally friendly, energy-efficient approach improving quality achieving structural refinement. However, due opaque nature of metals, understanding fundamental mechanisms governing interactions among ultrasonic bubbles, acoustic streaming, remains still challenging. review traces evolution UMP research, its inception mid-20th century recent advancements, with particular emphasis on application state-of-the-art synchrotron X-ray imaging computational modeling. These approaches have been instrumental unraveling complex, multiscale dynamics occurring across temporal spatial scales. Key findings various metallic alloy systems are critically reviewed, focusing new insights into cavitation growing solid phases different alloys. Additionally, discusses resulting phenomena, including grain refinement, fragmentation, mitigation solidification defects, detail. The concludes by identifying research gaps emerging trends, underscoring indispensable role situ studies robust theoretical frameworks advancing UMP. developments poised reshape future innovation materials science engineering.

Язык: Английский

Процитировано

0

Review of Layered Double Hydroxide (LDH) Nanosheets in Corrosion Mitigation: Recent Developments, Challenges, and Prospects DOI Open Access
Jiannong Cao,

Yangmin Wu,

Wenjie Zhao

и другие.

Materials, Год журнала: 2025, Номер 18(6), С. 1190 - 1190

Опубликована: Март 7, 2025

Layered double hydroxides (LDHs) are a typical class of two-dimensional nanomaterials that present numerous possibilities in both scientific and practical applications. LDHs, with layered structure unique interlayer ion-exchange properties, can be utilized to prepare various functional coatings, showing great potential the field marine corrosion protection. In this review, preparation approaches properties LDHs first briefly introduced. Subsequently, protection types based on LDH-based composite coatings for highlighted, including physical barriers, self-healing, chloride trapping effects, hydrophobic respectively. Furthermore, critical factors influencing anti-corrosion performance discussed detail. Finally, remaining challenges future prospects LDH-modified proposed. This review provides distinctive perspective fabricating LDH-enhanced corrosion-resistant materials, contributing toward development multifunctional, intelligent diverse

Язык: Английский

Процитировано

0

Impact of Dry Chemical-Free Mechanical Pressing on Deagglomeration of Submicron-Sized Boron Carbide Particles DOI Creative Commons

M. El-Kady,

Timo Sörgel

Nanomaterials, Год журнала: 2025, Номер 15(8), С. 611 - 611

Опубликована: Апрель 16, 2025

Submicron particles are widely used in industrial applications due to their unique physical and mechanical properties that enhance the performance of composite materials. In particular, boron carbide valued for exceptional hardness high wear resistance especially valuable protective coatings aerospace applications. However, these can agglomerate, significantly impairing effectiveness. When this occurs during development materials, negatively affected. paper, a chemical-free method using non-destructive, open-system dry deagglomeration technique is developed, leaving primary unaltered, while breaking up strong adhesions between resulting from manufacturing process. This was tested as-received submicron particles, with an average particle diameter d50 = 300 nm, its effect on size distribution presented. Furthermore, X-ray diffraction true density measurements were carried out raw powder. state poured into experimental mold without dispersing agent or atmosphere. Static pressure applied 141 MPa produce tablets at room temperature, finding 70 yielded best results terms homogeneity, dispersibility, reproducibility. order break apart densified pressed tablets, ultrasonication before running wet dispersed state. Using tri-laser light scattering technique, it determined followed Gaussian curve, indicating suitable regain uniform properties. It also shown applying ultrasound powder alone failed cause complete strongly adhering particles. These findings suggest there no significant alteration surface chemistry, lack any chemically supported mechanisms such as charge adsorption surfactants. static exerts immediate impact all mold, clear economical advantage shorter processing time over other methods shear mixing.

Язык: Английский

Процитировано

0

Application of Sound Waves During the Curing of an Acrylic Resin and Its Composites Based on Short Carbon Fibers and Carbon Nanofibers DOI Open Access
Braian Buitrago, Joana L. Rodrigues, Pedro Costa

и другие.

Materials, Год журнала: 2024, Номер 17(21), С. 5369 - 5369

Опубликована: Ноя. 2, 2024

Research into particulate polymer composites is of significant interest due to their potential for enhancing material properties, such as strength, thermal stability, and conductivity while maintaining low weight cost. Among the various techniques preparing particle-based composites, ultrasonic wave stimulation one principal laboratory-scale methods dispersion discontinuous phase. Nevertheless, there a scarcity empirical evidence substantiate impact stimulating materials with natural sound frequencies within acoustic spectrum, ranging from 20 Hz kHz, during formation process. The present work investigates effect stimuli 56, 111, 180 on properties an acrylic-based its carbon-based composites. results indicated that stimulus frequency affects cure time studied systems, notable reduction 31% 21% in times neat carbon-nanofiber-based respectively, after applying Hz. Additionally, higher reduced porosity samples, increased degree phase, altered composite materials’ thermal, optical, electrical behavior.

Язык: Английский

Процитировано

0