Results 11 to 20 of about 1,652 (235)

Reaction of water on calcium aluminates

open access: yesBureau of Standards Journal of Research, 1928
The four calcium aluminates (CaO.Al2O3, 3CaO.5Al2O3, 5CaO.3Al2O3, 3CaO.Al2O2) have been made, and the mechanism of their reacion with water has been studied.
Wells, L. S.
core   +3 more sources

Marginal microleakage of newly synthesized nanostructured materials based on calcium aluminate after application in interradicular perforations [PDF]

open access: yesStomatološki glasnik Srbije, 2023
Introduction Marginal seal or adequate marginal adaptation of material along the cavity walls should be able to prevent leakage of tissue fluid and consequently bacterial microleakage, terefore, it is considered as significant factor for long term ...
Josipović Renata   +7 more
doaj  

Liquid Inclusion Collision and Agglomeration in Calcium-Treated Aluminum-Killed Steel

open access: yesFrontiers in Materials, 2021
This work addresses conflicting results in the literature regarding liquid inclusion agglomeration. To assess whether liquid calcium aluminates do agglomerate in liquid steel, laboratory experiments were performed: melting electrolytic iron, deoxidizing ...
Mauro E. Ferreira   +2 more
doaj   +1 more source

Formation and evolution of inclusions in the refining process of X80 pipeline steel

open access: yes工程科学学报, 2023
To further meet the requirements for using pipeline steel in extreme environments and to improve its safety in service, the inclusion control level in pipeline steel urgently needs improvement.
Hua-jun ZHONG   +5 more
doaj   +1 more source

Structure and non-stoichiometry of calcium aluminates [PDF]

open access: yesPhilosophical Magazine A, 1983
Abstract Lattice imaging of reaction-sintered ceramic compounds in the CaO‒Al2O3 system showed 00.1 syntactic intergrowths in the matrix CaO. 6Al2O3 phase. The structure of these intergrowths could be interpreted in terms of the concepts used to describe various magnetoplumbite phases (Braun 1957).
Schmid, H., Jonghe, L.C. De
openaire   +2 more sources

Prediction of Inclusion Types From BSE Images: RF vs. CNN

open access: yesFrontiers in Materials, 2021
The analysis of non-metallic inclusions is crucial for the assessment of steel properties. Scanning electron microscopy (SEM) coupled with energy dispersive spectroscopy (EDS) is one of the most prominent methods for inclusion analysis.
Mohammad Abdulsalam   +3 more
doaj   +1 more source

Early age reaction of slag in composite cement: Impact of sulphates and calcite

open access: yesCement, 2023
Ground granulated blast furnace slag (GGBS) is an important supplementary cementitious material (SCM) for producing low carbon and durable concrete. There are however questions around the early age reactivity of GGBS and the factors that influence this ...
Sam Adu-Amankwah   +4 more
doaj   +1 more source

EXTRA-FURNACE STEEL PROCESSING BY RECYCLED SECONDARY ALUMINUM WASTE

open access: yesЛитьë и металлургия, 2018
The paper presents the results of research on the use of recycled aluminum waste (RAW) during extra-furnace steel processing in ladle refining furnace.
I. V. Tribushevskiy   +3 more
doaj   +1 more source

Analysis of structural-phase state of monoaluminate calcium [PDF]

open access: yesИнженерно-строительный журнал, 2014
Calcium aluminates have a decisive influence on the hydraulic activity of cement, in this regard, detailed study of them is an urgent task. The aim of this study is to determine the phase composition and detailed analysis of the structural-phase state of
Yu.A. Abzaev   +6 more
doaj   +1 more source

Rehydration of katoite as a layered double hydroxide: an in situ study

open access: yesRILEM Technical Letters, 2021
Calcium aluminate layered double hydroxides (Ca-Al LDHs) constitute a considerable part of cementitious waste fines. Although cementitious waste fines have proven to be recyclable by thermal treatment at moderate temperatures (400–700 °C), understanding ...
Antonia Alana Lima Pacheco   +5 more
doaj   +1 more source

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