Results 41 to 50 of about 23,023 (234)

Evaluation of Pelletized Artificial Geopolymer Aggregate Manufactured From Volcano Ash [PDF]

open access: yes, 2013
This paper introduced the new pelletized artificial geopolymer aggregate made from volcano ash. This is one of the effort to diminish the high quantity of volcano mud from East Java, Indonesia, that become a major issue since May 29, 2006 when it ...
Nizar, I. Khairul   +11 more
core  

Physical Origin of Temperature Induced Activation Energy Switching in Electrically Conductive Cement

open access: yesAdvanced Science, EarlyView.
The temperature‐induced Arrhenius activation energy switching phenomenon of electrical conduction in electrically conductive cement originates from structural degradation within the biphasic ionic‐electronic conduction architecture and shows percolation‐governed characteristics: pore network opening dominates the low‐percolation regime with downward ...
Jiacheng Zhang   +7 more
wiley   +1 more source

Peroxodisulfate‐Enhanced Leaching of Deep‐Sea Manganese Crusts and Sulfides

open access: yesChemie Ingenieur Technik, EarlyView.
Ammonium peroxodisulfate enables efficient leaching of deep‐sea manganese crusts and massive sulfides while offering electrolytic recycling. High leaching yields for V, Mn, Co, Mo, Sn, and W, along with complete leaching of As and Sb, highlight its potential as a powerful and sustainable oxidant for marine resource processing.
Bastian Hansel   +5 more
wiley   +1 more source

Characterization of geopolymer ceramic reinforced Sn-0.7Cu composite solder: effect of milling time and speed [PDF]

open access: yes, 2019
Link to publisher's homepage at https://iopscience.iop.org/The effect on the addition of optimally ball milled kaolin and fly ash geopolymer ceramic as reinforcement on the morphology and electrical properties of Sn-0.7Cu composite solder were explored ...
Nur Syahirah, Mohamad Zaimi   +5 more
core   +1 more source

Harnessing metallurgical slags for water treatment: Advances in organic pollutant degradation with and without hydrogen generation, and in heavy metal removal

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Valorization of ferrous and non‐ferrous metallurgical slags for water treatment: modification routes and applications in advanced oxidation, electrochemical processes, and adsorption within a circular economy framework. Abstract The removal of recalcitrant organic pollutants and heavy metals from water remains a critical challenge for safe drinking ...
Flor‐Tania Escárcega‐Olivares   +2 more
wiley   +1 more source

Tailoring phosphate mining waste into high‐performance geopolymers: A sustainable process for selective CO2/N2 separation

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Overview of the synthesis, structural features, and CO2 capture performance of geopolymer‐based adsorbents prepared from phosphate mining waste, including granular and spherical materials with high surface area, CO2 capture capacity, and CO2/N2 selectivity.
Alisson Lopes Freire   +7 more
wiley   +1 more source

Desenvolvimento de geopolímeros a partir de cinzas pesadas oriundas da queima do carvão mineral e metacaulim sintetizado a partir de resíduo da indústria de papel [PDF]

open access: yes, 2012
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia QuímicaA presente pesquisa concentrou-se no estudo e desenvolvimento de um material com propriedades cimentícias.
Boca Santa, Rozineide Aparecida Antunes
core  

Mechanical properties and thermal conductivity of lightweight foamed geopolymer concretes

open access: yes, 2019
Link to publisher's homepage at https://iopscience.iop.org/Foamed geopolymer concretes have a better performance in the thermal insulation properties compared to normal geopolymer concretes.
Siti Fatimah Azzahran, Abdullah   +4 more
core   +1 more source

3D concrete printing of eco-friendly geopolymer containing brick waste

open access: yes, 2023
This study investigates alkali-activated brick waste powder as the binder for developing 3D printable geopolymer mixes. The brick waste was used as a partial replacement to fly ash in geopolymer binders.
Jay Sanjayan   +5 more
core   +1 more source

Aerogel Fiber: A One‐Dimensional Programmable Porous Matter for Next Thermal Management Materials

open access: yesInterdisciplinary Materials, EarlyView.
Aerogel fibers are redefined as one‐dimensional programmable porous matter, where thermal transport is governed by multiscale pathway engineering. By reconstructing and decoupling transport pathways from molecular to textile scales, these systems integrate insulation, radiative cooling, and adaptive thermal regulation.
Lizhi Ren   +6 more
wiley   +1 more source

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