Article
Construction & Building Technology
Bo-Han Xu, Chuan-Kui Jing, Abdelhamid Bouchair
Summary: Embedment strength is an important parameter in determining the load-carrying capacity of timber joints with dowel-type fasteners. The existing design standards may underestimate the embedment strength for fully threaded bolts, and do not address the embedment strength for glued-in rods. New empirical expressions for embedment strength in timber for fully threaded bolts and glued-in rods were proposed based on experimental results.
JOURNAL OF MATERIALS IN CIVIL ENGINEERING
(2021)
Article
Materials Science, Multidisciplinary
Cristina Cazan, Alexandru Enesca, Luminita Isac, Luminita Andronic, Mihaela Cosnita
Summary: This study investigates the properties of composites made from polymeric waste, organic fillers, and inorganic fillers, before and after accelerated aging for indoor or outdoor applications. The researchers evaluated the effects of moisture, temperature, UV radiation, and salt fog on the mechanical properties of the composites. Structural and molecular changes were observed through different analytical techniques. The durability performance of the waste composites was tested before and after accelerated aging. The mechanical properties of the composites depended on the interface between the different components and the characteristics of accelerated aging.
ACS APPLIED POLYMER MATERIALS
(2023)
Article
Engineering, Manufacturing
Bright Asante, Hanzhou Ye, Martin Nopens, Goran Schmidt, Andreas Krause
Summary: Geopolymer wood composites (GWC) serve as a green alternative to Portland cement wood composites in construction, and the wood's initial moisture content affects the material properties of GWC. The study found that using wood with higher moisture content resulted in more structurally bound water in the GWC, while using dry wood led to higher density, compressive strength, and lower porosity in the composites.
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING
(2022)
Article
Materials Science, Multidisciplinary
Junbo Sun, Yufei Wang, Kefei Li, Xupei Yao, Binrong Zhu, Jiaqing Wang, Qianqian Dong, Xiangyu Wang
Summary: Conductive fillers play an important role in the design of electrically conductive cementitious composites, and the chemical components of the fillers influence the strength and electrical resistance of the materials. This study investigates the interfacial properties of graphite particles, steel slags, and ground granulated blast furnace slag in the composites at the molecular level, and proposes a hybrid mixing design to balance the mechanical and conductive performance.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Construction & Building Technology
Magdalena Dolezelova, Lenka Scheinherrova, Jitka Krejsova, Martin Keppert, Robert Cerny, Alena Vimmrova
Summary: The study showed that the type and surface quality of fillers significantly affect the shape and size of gypsum crystals in composites. Mortars with rough particles had higher strength, with expanded clay filler having the highest strength and waste polyurethane foam having the best thermal conductivity.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Liwen You, Benjamin Liu, Hongyang Hua, Hailong Jiang, Chuan Yin, Fei Wen
Summary: Dielectric capacitors with two-dimensional fillers have attracted significant attention due to their ability to significantly enhance energy storage capability even at low filler concentrations. This review provides a comprehensive overview of two-dimensional filler-based composites, including ceramics, metal oxides, carbon compounds, MXenes, and other materials, and discusses current challenges and future perspectives.
Article
Materials Science, Multidisciplinary
Sadaf Bashir Khan, Nan Li, Shenggui Chen, Jiahua Liang, Chuang Xiao, Xiaohong Sun
Summary: In this study, we aimed to improve the mechanical strength and durability of photosensitive resins (PSR) by using TiO2 nanoparticles. Our experimental results show that larger nanoparticles decrease the mechanical durability of PSR, while reducing the size of nanoparticles to 20 nm increases mechanical resilience, leading to improved flexural and tensile strength of PSR.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Materials Science, Ceramics
Zhaowen Ren, Wancheng Zhou, Yuchang Qing, Shichang Duan, Haijun Pan, Yingying Zhou, Ning Li
Summary: SiCf/SiOC composites were prepared with different content of SiO2 fillers, showing that the fillers can enhance the density of matrix, reduce microcracks, and improve flexural strength and complex permittivity initially. However, excessive addition of SiO2 fillers led to a decrease in complex permittivity and flexural strength. Composites with 10 g SiO2 fillers demonstrated good reflection loss and effective absorption bandwidth at 3.21 GHz, along with a flexural strength of 171.71 MPa.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Composites
Femiana Gapsari, Mudjib A. Sulaiman, Thesya Marlia Putri, Hans Juliano, Ludfi Djakfar, Rinawati P. Handajani, Sugeng P. Budio, Pitojo T. Juwono, Praveenkumara Jagadeesh, Sanjay Mavinkere Rangappa, Suchart Siengchin
Summary: This study analyzed the influence of calcium carbonate filler loadings on the properties of pine fiber reinforced polyester composites. The results showed that the fillers improved the physical, mechanical, thermal, and morphological properties of the composites. The fillers enhanced the strength, hardness, and thermal resistance of the composites through filling air gaps and enhancing interfacial bonding.
POLYMER COMPOSITES
(2022)
Article
Materials Science, Characterization & Testing
Wenchao Zhang, Min Jiang, Feng Guan, Shiyu Liu, Liangjun Wang, Yanpeng Li, Dong Yue, Jialong Li, Xiaoxu Liu, Yu Feng
Summary: In this study, high-temperature sintering was used to substitue Al3+ for Si4+ in SiO2 to create hole traps, resulting in acceptor-doped fillers Si1-0.75xAlxO2 (SA (x mol%)). Polyimide (PI) dielectric materials containing these SA fillers with different contents were synthesized through in-situ polymerization. The hole traps in the fillers modulated the electrical behavior of the polymer dielectric, significantly increasing the dielectric constant and breakdown strength by modulating the polarization behavior and capture carriers. The dielectric constant of the 1.25 vol% SA (1.5 mol%)/PI composite reached 3.60 at 1 Hz, while the breakdown strength E-b reached 581.5 kV/mm. This work provides a new synthesis strategy for achieving high insulation and high polarization in polymer dielectrics simultaneously.
Article
Polymer Science
Basheer A. Alshammari, Asma M. Alenad, Fahad S. Al-Mubaddel, Abdullah G. Alharbi, Abdulaziz Salem Al-shehri, Hanan A. Albalwi, Fehaid M. Alsuabie, Hassan Fouad, Abdel-Hamid I. Mourad
Summary: The main objective of this study is to develop hybrid high-density polyethylene (HDPE) micro- and nanocomposites and investigate their thermal, mechanical, and morphological characteristics based on the number and content of fillers. The research findings reveal that the types, sizes, quantities, and dispersion states of fillers have a significant influence on the mechanical properties of the prepared composites.
Article
Materials Science, Composites
Lu Jing, Weili Li, Chang Gao, Menglu Li, Weidong Fei
Summary: A novel structure design of lamellar-structured MgO and BiFeO3/MgO fillers is proposed, and a series of PVDF-based composites are fabricated. The composites exhibit significantly improved breakdown strength and high energy storage performance due to the large heterojunction electric field produced by BFO and MgO.
COMPOSITES SCIENCE AND TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Wei-Zong Bao, Jie Chen, Jun-Zhi Li, Bo-Hua Yu, Chu-Yuan Liu, Ping Jiang, Zu-Jia Liu, Kai-Tao Hu, Dmitri V. Louzguine-Luzgin, Guo-Qiang Xie
Summary: Cu-based composites with multiscale configuration were fabricated via a ball milling-spark plasma sintering-aging process for electrical contact applications. The Cu alloy matrix was synergistically strengthened by micro-scale metallic glass particles and nanoscale intracrystalline precipitation phases. The annealing technique decomposed solute atoms in the Cu alloy, ensuring excellent electrical properties of the matrix conductive network. After annealing at 400 degrees C for 10.0 h, the composite with multiscale configuration achieved an outstanding combination of ultimate compressive strength of (1114 +/- 15) MPa and electrical conductivity of 33.0% +/- 1.1% International Annealed Copper Standard (IACS). Investigation of the strengthening and conductivity mechanisms suggested that the precipitation of the Cr-rich phase within the matrix crystals played a critical role in the enhancement of strength and conductivity. The positive role of nanocrystals precipitated at the edges of metallic glass particles on the interfacial bonding of composites was also addressed.
Article
Chemistry, Physical
Veena Phunpeng, Karunamit Saensuriwong, Thongchart Kerdphol
Summary: The aim of this study was to develop composite materials with better mechanical properties for UAV parts. The vacuum infusion process and specific fiber ply orientations were found to significantly improve the flexural strength, with the combination of [0 degrees/90 degrees](4s) ply orientation and 10 wt% graphite filler showing the most remarkable improvement. In comparison to the hand lay-up process, the vacuum infusion process demonstrated more significant flexural strength. The hybrid composite materials offer a higher strength-to-weight ratio and can be applied in various fields beyond UAV parts.
Article
Chemistry, Physical
Bo Li, Clive A. Randall, Evangelos Manias
Summary: This study explores the dielectric response of a composite material consisting of ethylene-propylene-diene elastomer and carbon black nanofillers. It reveals that the dielectric relaxation is primarily determined by electron displacement within carbon black clusters, contradicting widely assumed interfacial polarization mechanisms. The dielectric response of the composites can be quantitatively correlated with the morphology of the carbon black clusters via a set of scaling laws.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Materials Science, Characterization & Testing
S. Basavarajappa, S. Manjunath Yadav, Chakrasali Chandrakumar, K. V. Arun
Article
Materials Science, Composites
K. V. Arun, Raghavendra Dilip Kamat, S. Basavarajappa
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
(2010)
Article
Materials Science, Composites
K. V. Arun, M. H. Divakar
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
(2010)
Article
Materials Science, Composites
K. V. Arun, S. Manjunathyadav, Chandradharappa, S. Basavarajappa, M. Krishna
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
(2010)
Article
Materials Science, Composites
K. V. Arun, D. Sujay Kumar, M. C. Murugesh
JOURNAL OF REINFORCED PLASTICS AND COMPOSITES
(2012)
Article
Engineering, Manufacturing
N. Jagannatha, S. Hiremath Somashekhar, K. Sadashivappa, K. V. Arun
MACHINING SCIENCE AND TECHNOLOGY
(2012)
Article
Polymer Science
S. Basavarajappa, Ajith G. Joshi, K. V. Arun, A. Praveen Kumar, M. Prasanna Kumar
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
(2010)
Article
Polymer Science
S. Basavarajappa, S. Manjunath Yadav, Santosh Kumar, K. V. Arun, S. Narendranath
POLYMER-PLASTICS TECHNOLOGY AND ENGINEERING
(2011)
Article
Environmental Sciences
D'Souza Nishitha, Vignesh Akshitha, Kumar Arun, Vadakkeveedu Narayan Amrish, Yerabham Praveenkumarreddy, Neloy Khare, Harikripa Narayana Udayashankar, Busnur Rachotappa Manjunatha, Keshava Balakrishna
Summary: The spatio-temporal behavior of dissolved organic carbon (DOC), inorganic carbon (DIC) and silica (DSi) along the salinity gradient in three south-west Indian monsoonal estuaries indicates that these estuaries act as net sources of organic carbon and inorganic carbon, while serving as net sinks for silica.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Proceedings Paper
Materials Science, Multidisciplinary
S. Manjula, K. Arun
Summary: This study focuses on the impact and bending behavior of spring steel with different edge and corner crack configurations, revealing that spring steel with corner cracks can be effectively used at 100 degrees Celsius. Different crack configurations have different effects on strength and impact energy, and the presence of edge and corner cracks will reduce the strength and service life of the spring steel, potentially leading to catastrophic failure.
MATERIALS TODAY-PROCEEDINGS
(2021)
Proceedings Paper
Engineering, Mechanical
Sudha Gyarahalli Shadaksharappa, Arun Kumbar Veerappa
INTERNATIONAL CONFERENCE ON EMERGING TRENDS IN MECHANICAL ENGINEERING (ETIME-2019)
(2020)
Proceedings Paper
Materials Science, Multidisciplinary
G. S. Sudha, K. V. Arun
MATERIALS TODAY-PROCEEDINGS
(2020)
Article
Orthopedics
Bijjawara Mahesh, Bidre Upendra, Shekarappa Vijay, Kumar Arun, Reddy Srinivasa
ASIAN SPINE JOURNAL
(2016)
Article
Engineering, Manufacturing
K. V. Arun, Sujay D. Kumar, M. C. Murugesh
INTERNATIONAL JOURNAL OF MANUFACTURING MATERIALS AND MECHANICAL ENGINEERING
(2014)
