Article
Materials Science, Multidisciplinary
Mustafa Okumus, Feyzullah Kaya
Summary: In this study, AlCoCuNiTi high entropy alloy was synthesized through high-energy ball-milling and sintering methods. The microstructural, thermal, and microhardness properties were investigated. The results showed the formation of intermetallic and solid solution phases, a decrease in crystallite size, an increase in lattice strain and dislocation density with prolonged milling time. As the milling time increased, the particle size decreased, leading to a more homogeneous structure. The addition of Ti and the increase in milling time and sintering temperature contributed to an increase in microhardness.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Chemistry, Physical
Florin Ciuprina, Denis Mihaela Panaitescu, Laura Enache, Celina Maria Damian, Ramona Marina Grigorescu, Augusta Raluca Gabor, Cristian Andi Nicolae, Cristina Lavinia Nistor, Roxana Trusca
Summary: This paper studies the control, improvement, and correlation of the mechanical and dielectric properties of SEBS and SEBS-MA by using graphite as filler in various concentrations. The results show that the real permittivity increases exponentially with the concentration of graphite, and the dielectric losses are low with high stability at high graphite content. Additionally, an increase in graphite content also leads to an increase in the mechanical stiffness of the composites.
Article
Materials Science, Ceramics
Runwu Yang, Jie Xu, Mingyue Wei, Jiatong Zhu, Xuanyu Meng, Ping Zhang, Jinlong Yang, Feng Gao
Summary: The rattler effect caused by Yb3+ doping can effectively reduce the thermal conductivity of rare-earth zirconate ceramics. Ceramics with dual-phase structure exhibit enhanced hardness, high coefficient of thermal expansion, and potential as promising thermal barrier coatings due to the active resonant scattering center role of Yb3+.
CERAMICS INTERNATIONAL
(2022)
Article
Agricultural Engineering
Wissam Bessa, Djalal Trache, Mehdi Derradji, Ahmed Fouzi Tarchoun
Summary: This paper investigates a new class of composites using treated alfa fibers to enhance the properties of bisphenol-A aniline benzoxazine resin, showing significant improvements in mechanical, thermal, and thermomechanical features. The addition of treated alfa fibers not only improved the fiber-matrix adhesion but also enhanced the glass transition temperature of the composites.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Article
Polymer Science
Seira Morimune-Moriya, Takashi Nishino
Summary: Strong, tough, transparent, and highly heat-resistant nanocomposites made of nanodiamond (ND) and poly (methyl methacrylate) (PMMA) were prepared via a simple water-based process. The nanocomposites exhibited a remarkable increase in mechanical and thermal properties at low ND contents, with an improvement in Young's modulus, tensile strength, and toughness. The incorporation of ND also led to higher thermal degradation temperature and glass transition temperature, exceeding the theoretical values and demonstrating the successful impartation of excellent properties of ND to the nanocomposites.
Review
Polymer Science
Antonio Benjamim Mapossa, Afonso Henrique da Silva Junior, Carlos Rafael Silva de Oliveira, Washington Mhike
Summary: The extensive use of non-biodegradable plastic products has caused significant environmental issues. Biodegradable polymers offer a solution but face challenges, which researchers are addressing by incorporating bentonite clay into polymeric matrices. However, achieving complete dispersion of nanoclays remains a challenge. Various methods are used to prepare polymer-clay nanocomposites for versatile industrial applications. Combining bentonite clay with other fillers can reduce production costs. This work reviews the development, challenges, and future directions of bentonite clay-based composites with biodegradable polymers.
Article
Materials Science, Composites
A. N. M. Masudur Rahman, Xueping Zhang, Xiaohong Qin, M. M. Alamgir Sayeed, Sayed Rashedul Islam
Summary: Researchers are focusing on improving the structural integrity of biodegradable matrices by incorporating plant fibers. They have developed a unique woven fabric using okra fiber and used it to produce PLA biocomposites. The study found that adding 20% of the okra woven fabric to the PLA resulted in the best mechanical and thermal properties of the composites.
POLYMER COMPOSITES
(2023)
Article
Materials Science, Composites
Hemlata
Summary: The study focuses on summarizing the synergistic effect of basalt fiber on mechanical, thermal, and morphological behavior of PP/bamboo composite. Different levels of basalt fibers (5, 10, 15, and 20 wt%) were used to replace 40 wt% of bamboo fiber, while maintaining a constant fiber content of 40 wt%. PP/bamboo composite and PP/bamboo/basalt hybrid composites were fabricated through melt compounding and injection molding. The addition of silanized basalt fiber in the composite improved tensile and flexural properties, while reducing impact strength. The inclusion of both bamboo and basalt fiber increased the crystallinity of neat PP and enhanced the viscoelastic properties.
POLYMER COMPOSITES
(2023)
Article
Polymer Science
Guillaume Pino, Cian Cummins, Daniele Mantione, Nils Demazy, Alberto Alvarez-Fernandez, Stefan Guldin, Guillaume Fleury, Georges Hadziioannou, Eric Cloutet, Cyril Brochon
Summary: Our study reports the synthesis of high chi value BCPs which enable sub-10 nm line-space structures for a low degree of polymerization. These BCPs are a valuable addition to the toolbox for next-generation nanomanufacturing needs.
Article
Biochemistry & Molecular Biology
Khadidja Taleb, Isabelle Pillin, Yves Grohens, Salima Saidi-Besbes
Summary: This study investigates the use of different nanofillers to enhance PLA properties, and the resulting nanocomposites show improvements in thermal stability and mechanical properties, but at the cost of reduced ductility. Characterization of the composite materials reveals a significant reduction in permeability compared to unfilled PLA.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Materials Science, Ceramics
Yunxuan Zhou, Yang Lin, Fei Zhang, Yehua Jiang, Shizhong Wei, Liujie Xu, Xiaoyu Chong, Zulai Li, Jing Feng
Summary: Transition metal carbides are promising high-temperature structural ceramics due to their high melting point, high hardness, and high strength. This study focuses on a new class of (Fe, Mo, W)6C carbides and investigates their mechanical properties by optimizing the atomic composition at different Wyckoff positions. The results show that the (Fe, Mo, W)6C eta carbides have higher fracture toughness and weaker mechanical anisotropy compared to other carbides, making them potentially suitable for high-temperature applications. The thermal expansion coefficients of the (Fe, Mo, W)6C eta carbides are also predicted.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Composites
J. Yusuf, S. M. Sapuan, Umer Rashid, R. A. Ilyas, M. R. Hassan
Summary: The efficient inclusion of GNPs as nano-fillers in green polymer matrices produced from biomass carbon significantly improves mechanical and thermal properties. The study successfully dispersed GNPs in green epoxy using a solution blending technique and ultrasonic bath, resulting in nanocomposites with optimal dispersion. The addition of low wt% of GNPs also enhanced the thermal stability and mechanical performance of the green nanocomposites.
POLYMER COMPOSITES
(2023)
Article
Chemistry, Applied
Fatima Fneich, Julien Ville, Bastien Seantier, Thierry Aubry
Summary: Foams were produced from nanocellulose-based hydrogel precursors through freeze-drying, and the study revealed a strong correlation between the mechanical and thermal properties of the foams and the rheological properties of their hydrogel precursors. The research indicates that tuning the rheological properties of the hydrogel precursors can allow for control over the mechanical and thermal properties of the foams.
CARBOHYDRATE POLYMERS
(2021)
Article
Materials Science, Composites
Nasmi Herlina Sari, Paryanto Dwi Setyawan, Senthil Muthu Kumar Thiagamani, Suteja, Roby Tamimi, Sanjay Mavinkere Rangappa, Suchart Siengchin
Summary: In this study, the researchers improved the mechanical and thermal characteristics of polymer composites by using pumice powder treatment on corn husk waste fibers. The results showed that the SBA/CHF composites had enhanced interfacial adhesion, leading to improved mechanical and thermal properties. The composite with a volume fraction of 5:30 exhibited the highest values among all composites, indicating the strong SBA/CHF interface bonds. The morphological study further revealed the influence of CHF and SBA on the composite properties.
POLYMER COMPOSITES
(2022)
Article
Materials Science, Textiles
Mohd Azlin Mohd Nor, Salit Mohd Sapuan, Mohd Zuhri Mohamed Yusoff, Edi Syams Zainudin
Summary: The study investigates the mechanical, thermal, and morphological properties of biodegradable woven kenaf reinforced polylactic acid composites. The results show that the addition of woven kenaf improves the tensile, flexural, and impact strength of the composites. However, it slightly reduces the flexural modulus. The thermogravimetric analysis demonstrates that the addition of woven kenaf enhances the heat resistance of the composites.
FIBERS AND POLYMERS
(2022)
Article
Materials Science, Characterization & Testing
Juciklecia S. Reinaldo, Laurenice Martins Pereira, Erik dos Santos Silva, Marcelo M. Ueki, Edson N. Ito
Article
Materials Science, Multidisciplinary
Erik dos Santos Silva, Lourdes Aparecida Ribeiro, Maria Carolina Burgos Costa do Nascimento, Edson Noriyuki Ito
MATERIALS RESEARCH-IBERO-AMERICAN JOURNAL OF MATERIALS
(2014)
Article
Materials Science, Composites
Tiago Nunes Lima, Thatiana Cristina Pereira de Macedo, Marcelo Massayoshi Ueki
Summary: The effects of maleic anhydride and organophilic montmorillonite on the properties and morphology of SEBS/PP blend were studied. The addition of clay changed the morphology of the blend, and the maleic anhydride group increased the interaction between the clay and polymer.
JOURNAL OF THERMOPLASTIC COMPOSITE MATERIALS
(2022)
Proceedings Paper
Polymer Science
Felipe Pedro da Costa Gomes, Juciklecia da Silva Reinaldo, Antonio Henrique Venancio Rodrigues, Thatiana Cristina Pereira de Macedo, Bismarck Luiz Silva, Edson Noriyuki Ito
MACROMOLECULAR SYMPOSIA
(2020)
Proceedings Paper
Polymer Science
Thatiana Cristina Pereira de Macedo, Juciklecia da Silva Reinaldo, Laurenice Martins Pereira, Jose Kaio Max Alves do Rego, Marcelo Massayoshi Ueki, Igor Zumba Damasceno, Edson Noriyuki Ito
MACROMOLECULAR SYMPOSIA
(2019)
