Results 51 to 60 of about 173,582 (292)

3D‐Printed Porous Hydroxyapatite Formed via Enzymatic Mineralization

Advanced Functional Materials, EarlyView.
Bone combines lightness, strength, and the ability to heal, inspiring new materials design. This work introduces a room‐temperature, enzyme‐mediated 3D printing method to create porous hydroxyapatite scaffolds. The process avoids energy‐intensive sintering, preserves bioactivity, and allows control over porosity and mineralization.
Francesca Bono, Anna Puiggalí‐Jou, Greta Cocchi, Mariangela Miccoli, Katharina Maniura‐Weber, Marcy Zenobi‐Wong, Esther Amstad   +6 more
wiley   +1 more source

Revealing the Hidden Role of Cd in p‐Type Mg3Sb2: Enhanced Thermoelectric Performance by Grain Boundary Segregation Engineering

Advanced Functional Materials, EarlyView.
The hidden role of Cd segregation at grain boundaries is revealed in p‐type Mg3Sb2 by atom probe tomography and other advanced characterizations. Grain boundary Cd enrichment suppresses the SbMg+ hole‐killer formation and lowers potential barriers, enhancing electrical conductivity.
Zhou Li, Deming Dong, Xiaoyu Yang, Jun Qian, Mengruizhe Kong, Han Wan, Ni Ma, Wei Bai, Pengfei Nan, Binghui Ge, Jiming Song, G. Jeffrey Snyder, Yuan Yu   +12 more
wiley   +1 more source

Interlayer Mechanical Behavior in CRTS II Slab Ballastless Tracks Under Vertical Loading

Applied Sciences
Reliable in situ quantification of interlayer mechanics in CRTS-II ballastless track slabs remains limited by the poor instrumentability of the CA mortar layer. This study implements a quasi-distributed fiber-optic sensing scheme by encapsulating FBGs in
Xiao Guo, Xiaonan Xie, Xuebing Zhang, Li Wang, Ping Xiang   +4 more
doaj   +1 more source

Resistance of Alkali-Activated Slag Concrete to Chloride-Induced Corrosion

Advances in Materials Science and Engineering, 2015
The corrosion resistance of steel in alkali-activated slag (AAS) mortar was evaluated by a monitoring of the galvanic current and half-cell potential with time against a chloride-contaminated environment.
Joon Woo Park, Ki Yong Ann, Chang-Geun Cho   +2 more
doaj   +1 more source

Influences of Fly Ash, Slag and Silica Fume on Electrochemical Chloride Removal Treatment with Simultaneous Migration of Silicate Ion

International Journal of Electrochemical Science, 2018
The paper aims to investigate the effects of fly ash (FA), slag (SL) and silica fume (SF) on the electrochemical chloride removal treatment with simultaneous migration of silicate ion, which was to alienate the Cl- from the reinforcement and inject SiO32-
Hongyou Shan, Zhuyin Wang, Jinxia Xu, Linhua Jiang   +3 more
doaj   +1 more source

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

Advanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez, Melanie Guillén‐Soler, Carlos Herreros‐Lucas, Alejandro López‐Moreno, José Manuel Vila‐Fungueiriño, Antonio Luis Llamas‐Saiz, Karol Strutyński, Manuel Melle‐Franco, María del Carmen Giménez‐López   +8 more
wiley   +1 more source

Crack-healing and rheological properties of high content fly ash/slag/silica fume green and sustainable cement-based materials incorporating crystalline admixture and calcium alginate biomass hydrogel

Case Studies in Construction Materials
Cracking is an important factor affecting the durability of concrete. Rheological properties are important performance indicators of the workability of fresh concrete.
Peng He, Feng Yu, Jianying Yu, Honglei Xie, Zhen Wang, Zhixin Yang, Shijiang Zhang   +6 more
doaj   +1 more source

Hydration of portland cement, natural zeolite mortar in water and sulphate solution

Materiales de Construccion, 2003
The objective of this paper is to characterise sulphate resistance of mortars made from ordinary Portland cement ( PC ) and Portland-pozzolan cement with 35 wt.% of zeolite addition (zeolite-blended cement-ZBC ).
I. Janotka, S. C. Mojumdar
doaj   +1 more source

One‐Dimensional Materials Supported in Two‐Dimensional Van der Waals Metal–Organic Frameworks with Optical Anisotropy Switching via Twist‐Engineering

Advanced Materials, EarlyView.
We introduce a molecular strategy to assemble one‐dimensional (1D) materials into two‐dimensional (2D) van der Waals metal–organic frameworks (MOFs). Crystals of [FeX(pzX)(bpy)] (X = Cl, F) form anisotropic 2D layers that can be mechanically exfoliated into thin sheets.
Eleni C. Mazarakioti, Carla Boix‐Constant, Iván Gómez‐Muñoz, Diego López‐Alcalá, Sergio Revuelta, Marco Ballabio, Vasileios Balos, José J. Baldoví, Enrique Cánovas, Josep Canet‐Ferrer, Guillermo Mínguez Espallargas, Samuel Mañas‐Valero, Eugenio Coronado   +12 more
wiley   +1 more source

Cross-sectional temperature analysis method of slab track based on detailed evaluation of solar radiation and long-wave radiation

Nihon Kikai Gakkai ronbunshu
In some slab tracks in cold regions, freeze-thaw cycle causes frost damage to the slab track filling layer. To evaluate this phenomenon, we proposed a weakly coupled analysis method of heat balance calculation on the slab track surface and heat ...
Fumihiro URAKAWA, Tsutomu WATANABE, Takatada TAKAHASHI, Shota FUCHIGAMI   +3 more
doaj   +1 more source