Results 61 to 70 of about 55,446 (258)

Production of Green Cement from Slag Enhanced by Egyptian Metakaolin Materials

Journal of Building Materials and Structures, 2020
New geopolymer-based materials offer excellent perspectives for the future; they should not be regarded as competitive materials for Portland cement, which has been the reference construction material for so long, but as alternative materials with a ...
Abdeen El Nagar
doaj   +1 more source

Alternative activators in alkali-activated cements

, 2023
Universitat Politècnica de ...
Payá, J., Monzó, J., Borrachero, M. V., Soriano, L., Tashima, M. M.   +4 more
openaire   +1 more source

Reversible Hydration Tuning of Polar Order and Large Nonlinear Optical Response in a 2D van der Waals Crystal, LiInP2S6

Advanced Materials, EarlyView.
Hydration‐induced symmetry breaking transforms layered LiInP2S6${\rm LiInP}_2{\rm S}_6$ from a nonpolar to a chiral‐polar phase, producing a giant enhancement of non‐resonant second‐harmonic generation. The reversible tuning of polar order through molecular intercalation establishes a strategy for dynamically controlling nonlinear optical ...
Jadupati Nag, Saugata Sarker, Michael J. Waters, Safdar Imam, Himirkanti Sarkar, Anthony Richardella, James M. Rondinelli, Mercouri G. Kanatzidis, Venkatraman Gopalan   +8 more
wiley   +1 more source

Development and engineering application validation of alkali-activated full-component shield tunnel spoil regenerated solid-waste grouting material

Journal of Materials Research and Technology
To address the issues of high disposal costs and low resource recovery efficiency of shield tunnel spoil (STS), this study proposes an Alkali-Activated Full-Component Shield Tunnel Spoil Regenerated Solid-Waste Grouting Material (AFS-RSWGM).
Zhiran Yang, Yu Zhou, Li Wang, Shizhuo Zou, Jinfei Chai, Yufei Fang, Shichao Jiang, Hui Ma   +7 more
doaj   +1 more source

Reconfigurable Ferroelectric‐Like Two‐Dimensional Electron Gas at Room Temperature

Advanced Materials, EarlyView.
We demonstrate the realization of a novel ferroelectric‐like two‐dimensional electron gas (2DEG) based on the epitaxial interface between SrO‐terminate SrTiO3 and ferroeletric KNb0.5Na0.5O3${\rm KNb}_{0.5}{\rm Na}_{0.5}{\rm O}_3$ thin films. We show nonvolatile control of the transport properties enabling spatially reconfigurable devices in which ...
Martando Rath, Yu Chen, Daniela Stornaiuolo, Aravind Raji, Alexandre Gloter, Antonio Cassinese, Andrea Rubano, Alessia Sambri, Domenico Paparo, Emiliano Di Gennaro, Jérôme Lecourt, Wilfrid Prellier, Francesco Rosa, Nicholas B. Brookes, Giacomo Ghiringhelli, Daniele Preziosi, Marco Salluzzo   +16 more
wiley   +1 more source

Reaction products, structure and properties of alkali-activated metakaolin cements incorporated with supplementary materials – a review

Journal of Materials Research and Technology, 2019
Incorporation of mineral blending and/or modifying additions which are single- or multi-component materials is one of the main trends in the development of both Portland clinker-based and non-clinker cements.
Nailia R. Rakhimova, Ravil Z. Rakhimov
doaj   +1 more source

Establishing Atomic Coherence in Twisted Oxide Membranes Containing Volatile Elements

Advanced Materials, EarlyView.
Twisted oxide membranes containing volatile elements often suffer from amorphous interfacial dead layers that suppress coupling. An oxygen‐annealing strategy establishes atomically coherent and chemically bonded interfaces in twisted NaNbO3 membranes, enabling coherent oxide moiré architectures in volatile‐element‐containing systems.
Young‐Hoon Kim, Reza Ghanbari, Min‐Hyoung Jung, Yang Zhang, Young‐Min Kim, Ruijuan Xu, Miaofang Chi   +6 more
wiley   +1 more source

Feasibility of storable microcapsules with core-to-shell ratio designs on the setting time and mechanical properties of alkali-activated slag: Toward concrete canvas application environment

Journal of Materials Research and Technology
The rapid dissolution time of solid alkali activator sodium silicate significantly affects the storage performance of alkali-activated slag concrete canvas.
Tao Sun, Wanting Li, Ziyan Wang, Gaoshang Ouyang   +3 more
doaj   +1 more source

Hydrophobic MFI‐Type Zeolites via Alkali‐Cation‐Induced Defect Healing: Implications for Adsorbent and Catalyst Design

Advanced Materials, EarlyView.
Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler, Pau Ferri, Francisco Javier Escobar‐Bedia, Álvaro Mayoral, Alejandro Vidal‐Moya, Richard Kendra, Chen Lei, Miguel Palomino, Fernando Rey, Lukáš Grajciar, Christopher James Heard, Pedro Serna, Mercedes Boronat, Cristina Martínez, Manuel Moliner   +14 more
wiley   +1 more source

Alkali Activation of Oil Shale Ash Based Ceramics

E-Journal of Chemistry, 2012
Timahdit oil shale was subjected to firing transformation via ceramics processing followed by alkali activation to synthesis a materials combining the mechanical properties of ceramics and Zeolites.
A. Hamadi, K. Nabih
doaj   +1 more source