Results 1 to 10 of about 177,387 (215)

Corrosion mechanisms of Al2O3-SiC-C refractory castables by iron and slag based on post-mortem analysis of industrial samples

Open Ceramics, 2023
The Al2O3-SiC-C or ASC castables are used in the main runners of blast furnaces. Most of the papers published to date focus on laboratory corrosion tests because access to the post-mortem samples of ASC castables is difficult.
Sina Darban, Laurent Cassayre, Simon Chiartano, Laurie Lacarrière, Martin Cyr, Cédric Patapy, Pascal Prigent   +6 more
doaj   +2 more sources

Analysis of the Formed Protective Layer Inhibiting Alkali Corrosion in Aluminosilicate Refractory Castables

Ceramics, 2022
This article analyzes the mechanism of the protective layer formation under the action of alkali in a refractory castable when ground quartz sand (GQS) is used as an admixture to produce refractory conventional castables (CC) and medium cement castables (
Valentin Antonovič, Rimvydas Stonys, Povilas Zdanevičius, Romualdas Mačiulaitis, Renata Boris, Jurgita Malaiškienė   +5 more
doaj   +2 more sources

Rheology of refractory concrete: An article review

Boletín de la Sociedad Española de Cerámica y Vidrio, 2022
Ceramic engineers have investigated the rheology of the refractory concrete to keep the balance between the desired characteristics of castables and its flow demeanor.
Ibrahim M.I. Bayoumi, Emad M.M. Ewais, Ahmed A.M. El-Amir   +2 more
doaj   +1 more source

Evaluation of the combined addition of aluminum lactate and calcium carbonate to alumina-based castables [PDF]

Cerâmica, 2021
Calcium aluminate cement (CAC) can induce the development of high green mechanical strength to refractory castables in a short period of time (24 h). However, the production of this hydraulic binder is energy-intensive and releases a large content of ...
L. B. Consonni, A. P. da Luz, V. C. Pandolfelli   +2 more
doaj   +1 more source

Physical and mechanical properties of low, ultralow and no cement refractory castables containing MgO nanoparticles developed in situ by means of polymeric resins [PDF]

Cerâmica, 2019
The introduction of MgO nanoparticles developed in situ in the matrix of high-alumina low cement, ultra-low and no cement refractory castables was made by means of a low viscosity containing aqueous polymeric resin, produced by the Pechini method.
J. A. Alves Júnior, J. B. Baldo
doaj   +1 more source

Investigation of the milling route for the development of colloidal suspensions to be used as binder in refractory castables

Open Ceramics, 2023
Refractories castables bonded with CAC (calcium aluminate cement) have a limitation when they are used at high temperature in micro-silica containing system and/or in acidic corrosive environments.
S. Abdelouhab, C. Lang, C. Delmotte, V. Vandeneede, M. Thiesen, L. Ibarra, O. Krause, E. Brochen, C. Dannert   +8 more
doaj   +1 more source

Fundamental Investigations on the High-Temperature Corrosion of Spinel-Forming Alumina Castables by Steel Slags

Applied Sciences, 2022
This study investigated the effect of the CaO/SiO2 mass ratio of steel slag on the corrosion behavior of spinel-forming alumina-based castables with a content of MgO (3–7 wt.%).
Jakub Ramult, Klaudia Wiśniewska-Tobiasz, Ryszard Prorok, Dominika Madej   +3 more
doaj   +1 more source

Investigation of the role of impurities typical in secondary raw materials on the behaviour of high alumina castables - Part II: Influence on thermomechanical behaviour

Open Ceramics, 2023
The present work investigated the effect of relatively small additions of impurities originating in secondary raw materials on the thermomechanical properties of alumina castables bonded with active alumina.
Jacek Podwórny, Karolina Dudek, Magdalena Kujawa, Robert Kusiorowski, Erwan Brochen, Christian Dannert, Olaf Krause, Laura Erbar, Katharina Sarnow   +8 more
doaj   +1 more source

Synthesis of in-situ high-content carbon-containing calcium aluminate cement and its effect on the properties of Al2O3-SiC-C castables

Journal of Asian Ceramic Societies, 2021
The in-situ high-content carbon-containing calcium aluminate cement (HCCAC) with the carbon content of 20.1 wt.% was prepared by the soft chemistry method with citric acid, calcium carbonate, and alumina as raw materials.
Yunfei Zang, Guoqing Xiao, Donghai Ding, Jianying Gao, Changkun Lei, Jianjun Chen, Jiyuan Luo, Shoulei Yang   +7 more
doaj   +1 more source

The Effect of Chelate Compounds on the Hydration Process of MgO–Al₂O₃ Phase System under Hydrothermal Conditions

Applied Sciences, 2021
In refractory castables during heat treatment, there is a dynamic change from a hydraulic bond to a ceramic bond. During heating, the emission of water takes place; this changes the conditions inside the material to something similar to the hydrothermal ...
Ryszard Prorok, Jakub Ramult, Wieslawa Nocun-Wczelik, Dominika Madej   +3 more
doaj   +1 more source