Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
This paper presents the results of research on the microstructure, mechanical, and tribological properties of Cu/0.5 wt.% MWCNT (multi-walled carbon nanotube) sintered composite materials produced by powder metallurgy. The purpose of this research was to investigate the impact of carbon nanotube modifications on the uniformity of their dispersion and the effectiveness of their bonding with the matrix. The MWCNTs were modified by chemical oxidation. Additionally, a modification of the ingredient mixing method utilizing ultrasonic frequencies was employed. The tests were carried out using scanning electron microscopy (SEM), transmission electron microscopy (TEM), Vickers hardness tests, static compression tests, and wear tests using the pin-on-disc method. Furthermore, mechanical properties and strain distribution analyses of the micro-specimens were conducted using the Micro-Fatigue System (MFS). The implemented modifications had a positive effect on the dispersion of MWCNTs in the copper matrix and on the mechanical and tribological properties of the sinters.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10972087 | PMC |
| http://dx.doi.org/10.3390/ma17061427 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Overcoming Conductivity-Stretchability Trade-Off in Soft Conductive Composites through Liquid Metal Junctions.
ACS Appl Mater Interfaces
September 2025
Department of Mechanical Engineering, State University of New York at Binghamton, Binghamton, New York 13902, United States.
Soft conductive composites are significant components of soft and wearable electronics. Existing soft conductive composites encounter difficulties in attaining 10% of copper's electrical conductivity while maintaining high stretchability. In this work, a novel "soft conductive junction" concept is introduced to overcome the conductivity-stretchability trade-off.
View Article and Find Full Text PDF3D-printed copper-containing tailored titanium alloys with corrosion resistance, biocompatibility, and anti-inflammatory properties for enhanced guided bone regeneration.
Front Bioeng Biotechnol
August 2025
Institute of Stomatology and Laboratory of Oral Tissue Engineering, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China.
Introduction: Guided bone regeneration (GBR) serves as a critical technique in dental implantology, relying heavily on barrier membranes for successful alveolar bone augmentation. Titanium mesh, widely utilized in GBR procedures, faces a high exposure rate that leads to infections and compromised clinical outcomes. While 3D-printed personalized meshes have reduced exposure rates, infection risks persist, necessitating the development of bioactive solutions.
View Article and Find Full Text PDFSolid-State Supercapacitors with Enhanced Performance Using Al-Doped Li Ion Perovskite Electrolyte Integrated with Carbon Aerogel Electrode.
ACS Omega
September 2025
Department of Physics, Birla Institute of Technology and Science, Pilani, Pilani Campus, Vidya Vihar, Pilani, Rajasthan 333031, India.
We report the performance of solid-state ceramic supercapacitors (SSCs) based on a novel composite electrolyte comprising aluminum-doped lithium lanthanum titanate perovskite, LiLaTiAlO (Al-doped LLTO), and the ionic liquid 1-ethyl-3-methylimidazolium tetrafluoroborate (EMIM BF). Rietveld refinement of X-ray diffraction data confirms the preservation of the tetragonal perovskite phase after Al substitution, indicating structural stability of the host lattice. X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy further corroborate the successful incorporation of Al without forming secondary phases.
View Article and Find Full Text PDFDual stimulus-responsive dECM cryogel sequentially regulate bone microenvironment for one-step surgical therapy of chronic osteomyelitis.
Mater Today Bio
October 2025
Department of Orthopedic Surgery, The First Affiliated Hospital of Shantou University Medical College, Shantou, Guangdong, 515041, China.
Combining disinfection and bone regeneration in a one-step treatment is of significant clinical importance for chronic osteomyelitis, yet it remains a considerable challenge. To address this, we developed a dual stimulus-responsive decellularized extracellular matrix (dECM) cryogel (GC-dECM@CPN). The cryogel is composed of methacrylate gelatin (GelMA), carboxymethyl chitosan (CMCS), dECM, and temperature-sensitive phase-transition copper peroxide nanoparticles (CPNs).
View Article and Find Full Text PDFA laser-induced catalyst for the electrosynthesis of ammonia.
Nanoscale
September 2025
Department of Chemical Sciences, Ariel University, Ariel, Israel.
Electrocatalytic synthesis of ammonia is a sustainable, cost-effective alternative method for producing renewable electricity and can operate under milder conditions than the traditional Haber-Bosch method. We report direct laser-induced synthesis of copper nanocatalysts embedded in graphitic films for the synthesis of ammonia. Laser-induced metal-embedded graphene (m-LIG) offers many advantages, such as fast and simple synthesis, shape design of the electrodes, and direct printing on any substrate, including thermally sensitive plastics.
View Article and Find Full Text PDF