Results 211 to 220 of about 8,331 (256)

Ammonium Salts as Curing Agents to Obtain Ionic Epoxy Resins With a Thermoplastic‐to‐Thermoset Transition

Advanced Materials, EarlyView.
Ionic epoxy networks are prepared using ammonium salts as hardeners, leading to a two‐stage curing process with a thermoplastic‐like intermediate. This uncommon behavior enables extrusion and fabrication of thermoplastic prepregs that can be cured into thermoset composites.
Izabela Kurowska, Leire Unanue, Itxaso Calafel, Dorleta Otaegui, Jorge L. Olmedo‐Martínez, Lourdes Irusta, Daniel Vinagre, Nora Aranburu, Nerea Casado, Ibon Odriozola, David Mecerreyes   +10 more
wiley   +1 more source

Energetic Offset in Organic Solar Cells‐ Importance, Confusion and Outlook

Advanced Materials, EarlyView.
Energetic offsets in organic solar cells (OSCs) remain a subject of debate due to measurement‐ and lab‐dependent discrepancies. This Perspective clarifies the physical origins of these variations and identifies temperature‐dependent electro‐optical methods as a reliable approach to obtain consistent offset values.
Nakul Jain, Xian'e Li, Mats Fahlman, Olle Inganäs, Koen Vandewal, Feng Gao   +5 more
wiley   +1 more source

Flexible Ag2Se‐Based Thermoelectrics: Fundamentals, Processing, and Device Applications

Advanced Materials, EarlyView.
Ag2Se‐based thermoelectrics are reviewed from fundamental transport mechanisms to flexible device integration. Crystal structure, defect chemistry, and band features are correlated with performance optimization strategies and scalable fabrication routes.
Jie Qin, Yuchen Yang, Huangshui Ma, Yong Du, Min Hong, Qinfei Ke   +5 more
wiley   +1 more source

Topology and Material Optimization in Ultra‐Soft Magneto‐Active Structures: Making Advantage of Residual Anisotropies

Advanced Materials, EarlyView.
Residual magnetization induces pronounced mechanical anisotropy in ultra‐soft magnetorheological elastomers, shaping deformation and actuation even without external magnetic fields. This study introduces a computational‐experimental framework integrating magneto‐mechanical coupling into topology optimization for designing soft magnetic actuators with ...
Carlos Perez‐Garcia, Rogelio Ortigosa, Jesús Martínez‐Frutos, Daniel Garcia‐Gonzalez   +3 more
wiley   +1 more source

2D MOF with Intrinsic Porosity for Colorimetric Volatile Organic Compounds (VOCs) Detection

Advanced Materials, EarlyView.
An uncommon 2D MOF with intrinsic in‐plane porosity that can be mechanically exfoliated undergoes a distinct and reversible colour change upon exposure to various volatile organic compounds. ABSTRACT In this work, we report an uncommon 2D metal–organic framework (MOF) with intrinsic in‐plane porosity that undergoes a distinct and reversible colour ...
Sergio R. Gamarra, Alberto Fernández‐Alarcón, Joaquín Calbo, Enrique Ortí, Guillermo Mínguez Espallargas   +4 more
wiley   +1 more source

Three-Point Bending Test of Fiber Posts

Journal of Endodontics, 2001
Five different types of fiber posts (carbon fiber Composipost radio-opaque, quartz fiber Aestheti-Plus, carbon fiber Carbotech, glass fiber Light post, and silica fiber Snowpost) were submitted to a three-point bending test after being stored for 1 yr under three different conditions: dry storage at room temperature, storage in 37 degrees C water, and ...
Mannocci, F, Sherriff, M, Watson, T F
openaire   +4 more sources

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Influence of support friction on three-point bend test

International Journal of Pressure Vessels and Piping, 1992
Abstract One of the most commonly used tests for the experimental determination of the stress intensity factor is the so-called three-point bend test which has been adopted as a standard test by the American Society for Testing and Materials. It has been verified that the actual boundary conditions, i.e.
Graciela N. Doz, Jorge D. Riera
openaire   +1 more source

Testing of fibre-plastics composites in three-point bending

Composites, 1971
Abstract Bending tests involve a number of variables which can significantly affect their results and need to be considered particularly carefully when they are used to determine the mechanical properties of fibre-plastics composites. Test variables has been critically examined therefore, with particular reference to six different modes of supporting
R.M. Ogorkiewicz, P.E.R. Mucci
openaire   +1 more source

Three- and Four-Point Bend Testing for Electronic Packages

Journal of Electronic Packaging, 2003
This study demonstrates the application of three-point and four-point bending tests for evaluating the reliability of chip scale packages under curvature loads. A three-point bend test is conducted on 0.5-mm-pitch chip-scale packages (CSPs) mounted on FR4 (Flame Retardant) substrates.
Santosh Shetty, Tommi Reinikainen
openaire   +1 more source

A three point bend test for fibre-reinforced composites

Fibre Science and Technology, 1974
Abstract The effect of fabrication and testing variables on the three point bend testing of glass fibre-reinforced polyester resin composites has been investigated. The volume fraction of fibres in the composites, the specimen span-to-depth ratio and the overhang of the specimen beyond the outer loading nose were varied.
A.W. Christiansen, J. Lilley, J.B. Shortall   +2 more
openaire   +1 more source