Results 51 to 60 of about 54,764 (351)

NanoMOF‐Based Multilevel Anti‐Counterfeiting by a Combination of Visible and Invisible Photoluminescence and Conductivity

Advanced Functional Materials, EarlyView.
This study presents novel anti‐counterfeiting tags with multilevel security features that utilize additional disguise features. They combine luminescent nanosized Ln‐MOFs with conductive polymers to multifunctional mixed‐matrix membranes and powder composites. The materials exhibit visible/NIR emission and matrix‐based conductivity even as black bodies.
Moritz Maxeiner, Ruben Maile, Murat Cuvalli, Andreas Wolf, Ayisha Komal, Robert Oestreich, Christoph Janiak, Karl Mandel, Alexander Knebel, Klaus Müller‐Buschbaum   +9 more
wiley   +1 more source

MnI‐Functionalized Covalent Organic Framework as Efficient Electrocatalyst for CO2 Reduction in a Catholyte‐Free Zero‐Gap Electrolyzer

Advanced Functional Materials, EarlyView.
This work demonstrates the successful integration of a phenanthroline‐based 2D COF with MnI catalytic sites into a catholyte‐free membrane‐electrode‐assembly cell for CO2 electroreduction. The crystalline COF actively suppresses Mn⁰–Mn⁰ dimerization, achieving a turnover frequency of 617 h⁻¹ at 2.8 V (full‐cell potential), and enabling stable operation.
Laura Spies, Marcos Eduardo G. Carmo, Gonçalves J. Marrenjo, Stephan Reuther, Patrick Ganswindt, Antonio Otavio T. Patrocinio, Thomas Bein, Osmando F. Lopes, Jenny Schneider   +8 more
wiley   +1 more source

Pengaruh Persentase Berat Sic Terhadap Sifat Mekanis Paduan Al-si- Mg-tib Yang Diperkuat Serbuk Sic [PDF]

, 2014
Tujuan dari penelitian ini adalah untuk menjawap permasalahan pada pembuatan MMC dengan proses pengecoran, yaitu sulitnya percampuran matriks Al cair dan partikel SiC, dispersi SiC yang tidak homogen, serta permukaan SiC yang tidak terbasahi oleh matriks
Mujiono, M. (Mujiono), Nugroho, S. (Sri), Sulardjaka, S. (Sulardjaka)   +2 more
core  

Printed Integrated Logic Circuits Based on Chitosan‐Gated Organic Transistors for Future Edible Systems

Advanced Functional Materials, EarlyView.
Edible electronics needs integrated logic circuits for computation and control. This work presents a potentially edible printed chitosan‐gated transistor with a design optimized for integration in circuits. Its implementation in integrated logic gates and circuits operating at low voltage (0.7 V) is demonstrated, as well as the compatibility with an ...
Giulia Coco, Valerio Francesco Annese, Valerio Galli, Ilaria Penna, Debora Russo, Marina Veronesi, Rita Scarpelli, Stefania Sabella, Mario Caironi   +8 more
wiley   +1 more source

Novel Combined Feeding Approach to Produce Quality Al6061 Composites for Heat Sinks

High Temperature Materials and Processes, 2019
This elementary work aims to address agglomeration and non-uniform dispersion of reinforcement particles in stir casting using Al6061 alloy (AA 6061) as a matrix and Aluminium oxide (Al2O3) as reinforcement particles.
Asokan Manivannan, Rathinasabapathy Sasikumar, Khadar Shaik Dawood Abdul, Khan Mohammed Sadique   +3 more
doaj   +1 more source

Demonstration of an All‐Optical AND Gate Mediated by Photochromic Molecules

Advanced Functional Materials, EarlyView.
A logic AND gate that runs on photons is demonstrated. It relies on two spatially separated photochromic molecules that work in tandem. Abstract The realization of a photonic logic AND gate, i.e. a logic AND gate that runs on photons rather than electrons, and where all steps are controlled by light, is demonstrated. In a proof‐of‐principle experiment,
Heyou Zhang, Max Gießübel, Pankaj Dharpure, Andrea Albert, Vira Niestierkina, Paul Mulvaney, Mukundan Thelakkat, Jürgen Köhler   +7 more
wiley   +1 more source

Microstructure, mechanical response and fractography of AZ91E/Al2O3 (p) nano composite fabricated by semi solid stir casting method

Journal of Magnesium and Alloys, 2017
The present study confers to the fabrication and its characterization of magnesium alloy (AZ91E) based nano composites with nano Al2O3 particulate reinforcements. A novel Semi Solid stir casting technique was adopted for the fabrication of the composite.
Sameer Kumar D., Suman K.N.S., Tara Sasanka C., Ravindra K., Palash Poddar, Venkata Siva S.B.   +5 more
doaj   +1 more source

Characterization of AMCs Produced by Stir Casting Technique

IOP Conference Series: Materials Science and Engineering, 2021
Abstract Stir casting is the simplest and cheapest method to manufacture composite materials. The objective of the research work is to produce Aluminum Matrix Composites with LM5 as matrix material and Fly Ash as reinforcement material at 0, 5, 10 % by weight, using stir casting technique and to study the mechanical properties such as ...
M Saleem, Nishant Kumar raj, Yogesh kumar, Pranav Kumar   +3 more
openaire   +1 more source

Octanol/Water Partitioning Coefficients of PCB Mixtures for Environmental Fate and Transport [PDF]

, 2013
Polychlorinated biphenyls (PCBs) are a human and environmental toxin introduced to the environment from the 1920’s to the 1970’s from manufacturing items such as transformers and capacitors.
Cicilio, Phylicia
core   +1 more source

Fabrication of metal matrix composites under intensive shearing [PDF]

, 2008
Current processing methods for metal matrix composites (MMC) often produces agglomerated reinforced particles in the ductile matrix and also form unwanted brittle secondary phases due to chemical reaction between matrix and the reinforcement. As a result
Barekar, NS, Fan, Z, Hari Babu, N, Patel, JB, Tzamtzis, S   +4 more
core   +1 more source