Results 1 to 10 of about 42,604 (255)

Study on the Curing and Foaming of Surfactant-Modified Geopolymer Gels Based on Ash and Slag Waste from Coal Combustion

open access: yesGels, 2023
This study explores the influence of temperature–time conditions, surfactants, and varied waste compositions on the curing of geopolymer gels, a foam formation with the properties of porous geopolymers. Findings reveal that a 6 h curing period leads to a
Elena A. Yatsenko   +7 more
doaj   +1 more source

Recycling Ash and Slag Waste from Thermal Power Plants to Produce Foamed Geopolymers

open access: yesEnergies, 2023
Ash and slag waste (ASW) from coal combustion creates significant environmental and economic challenges. A promising method of ASW recycling is alkali activation with geopolymer material formation.
Elena A. Yatsenko   +6 more
doaj   +1 more source

Review and perspective of high-k dielectrics on silicon

open access: yesJournal of Telecommunications and Information Technology, 2023
The paper reviews recent work in the area of high-k dielectrics for application as the gate oxide in advanced MOSFETs. Following a review of relevant dielectric physics, we discuss challenges and issues relating to characterization of the dielectrics ...
Stephe Hall   +4 more
doaj   +1 more source

Additive Effects of Dietary Supplementation with Zeolite and Methyl-Sulfonyl-Methane on Growth Performance and Interleukin Levels of Broiler Chickens

open access: yesThe Journal of Poultry Science, 2023
Silicate minerals are common additives in poultry feed. To assess their effects, we added zeolite (ZEO) and methyl-sulfonyl-methane (MSM) to broiler chicken diets.
Chun Ik Lim, Kyeong Seon Ryu
doaj   +1 more source

SiC synthesis using natural Mg-silicates [PDF]

open access: yesScience of Sintering, 2012
The silicon carbide powders are prepared by carbothermal reduction of domestic mineral resources (white and brown sepiolite), at relatively low temperatures (1200 - 1600oC).
Devečerski A.   +5 more
doaj   +1 more source

Utilization of 29Si MAS-NMR to Understand Solid State Diffusion in Energy Storage Materials

open access: yesFrontiers in Chemical Engineering, 2022
The properties of many solid-state materials arise from critical interfaces tied to the structure, morphology, and composition of the materials under study.
Fulya Dogan, Baris Key, John T. Vaughey
doaj   +1 more source

COMPUTER MODELLING METHODS FOR PREDICTING PERFORMANCE OF CATHODE MATERIALS FOR LITHIUM-ION BATTERIES

open access: yesФизико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2014
Electrical conductivity, in particular ionic conductivity, is one of the major obstacles for further improvement of lithium-ion batteries and is expected to remain so in the foreseeable future.
M.Yu.. Arsent'ev   +4 more
doaj   +1 more source

Dental Pulp Response to Different Types of Calcium-Based Materials Applied in Deep Carious Lesion Treatment—A Clinical Study

open access: yesJournal of Functional Biomaterials, 2022
Dental pulp vitality preservation in dental caries treatment is a major goal in odontotherapy. The main objective of this study was to compare dental pulp tissue responses to vital therapies in deep carious lesions, using different calcium-based ...
Antoanela Covaci   +5 more
doaj   +1 more source

Optimization of the structure and properties of foam-glass ceramics

open access: yesИнженерно-строительный журнал, 2019
The basic properties of foam-glass ceramics — a porous inorganic material are optimized in the study. This material is used for thermal insulation of various engineering structures: foundations of buildings, roads and railways, pipelines, etc.
Konstantin Ivanov
doaj   +1 more source

The layer silicate Cs2SnIVSi6O15

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2022
Single crystals of Cs2SnSi6O15, dicaesium tin(IV) hexasilicate, were serendipitously obtained from a CsCl/NaCl flux at 923 K, starting from mixtures of CaO, SnO and TeO2 in a closed silica ampoule. The crystal structure of Cs2SnSi6O15 is constructed from
Michael Ketter, Matthias Weil
doaj   +1 more source

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