Results 11 to 20 of about 596 (233)

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

Phase Transformations and Properties Evolution of Alumina-Based Refractory Castables Containing ZnO and SiO2

Materials Research, 2022
Although most of the studies presented in the literature are focused on MgAl2O4 formation and its role on alumina-based refractories performance, ZnO has been reported as a promising spinel inducer. Aiming to investigate the influence of ZnAl2O4 (ZA) and
D. S. Fini, C. L. C. de Mauro, B. P. Bezerra, A. P. Luza   +3 more
doaj   +1 more source

Influence of lithium carbonate and superplasticizer as admixtures on low calcium dialuminate cement castable submitted to thermal shock

Journal of Asian Ceramic Societies, 2021
The purpose of this study was to investigate the hot properties of low calcium dialuminate cement castable as binder with varying amount of Li2CO3 and castament FS20 superplasticizer as admixtures. Thermal damage test was carried out through quenching in
Arlin Bruno Tchamba, George Elambo Nkeng, Nangah Che Randy, Marcel Guidana, Ngouloure N M Zenabou, Yannick Tchedele Langollo, Daniel Ducho, Thomas A. Bier   +7 more
doaj   +1 more source

Thermomechanical Characterization of Monolithic Refractory Castables [PDF]

Advances in Science and Technology, 2010
This paper deals with the characterization of the thermomechanical behavior of monolithic refractory castables in a wide temperature range, up to 1200°C. Different test types are considered: tensile tests, compression tests, bending tests and tests on more complex shapes and geometries.
Cutard, Thierry, Donval, Nicolas, Mazzoni, Aurélien, Michel, Claire, Nazaret, Fabien   +4 more
openaire   +2 more sources

Corrosion of bauxite‐based refractory castables and matrix components in hydrogen containing atmosphere

International Journal of Ceramic Engineering & Science, 2022
For the transformation to a CO2 neutral industry, fuel of traditionally fossil‐fired furnaces is substituted by the subsequently addition of hydrogen.
T. Leber, S. Madeo, T. Tonnesen, R. Telle   +3 more
doaj   +1 more source

Investigation of fracture behavior of typical refractory materials up to service temperatures

International Journal of Ceramic Engineering & Science, 2022
In service, refractory linings experience thermal stresses typically exceeding their mechanical strength. However, this does not lead to the catastrophic failure of modern well‐designed refractory linings. They rather undergo a more or less stepwise wear
Erwan Brochen, Christian Dannert, Juliane Paul, Olaf Krause   +3 more
doaj   +1 more source

Deflocculants for refractory castables (review)

Scientific research on refractories and technical ceramics, 2020
Review and analysis of foreign studies aimed at researching the influence of various deflocculants on properties of refractоry castables have been executed. Technological efficiency of deflocculants application had been shown:– ADS/W brands comparison to polyacrylate and sodium threepolyphosphate in alumina-cement-based mixture in terms mass`s humidity
S. V. Chaplianko, V. V. Nikichanov
openaire   +1 more source

Corrosion Mechanism of A Density-Reduced Steel Ladle Lining Containing Porous Spinel-Calcium Aluminate Aggregates

Ceramics, 2020
Refractory monolithics for steel ladle linings are typically products with low porosities and high bulk densities. They achieve high temperature, penetration, and corrosion resistance.
Christoph Wöhrmeyer, Jianying Gao, Christopher Parr, Magali Szepizdyn, Rose-Marie Mineau, Junhui Zhu   +5 more
doaj   +1 more source

Influence of deflocculants on the cement hydrate phase formation and technological properties of CAC-bonded castables during the first heating process

Open Ceramics, 2023
The mechanism of growth and decomposition of calcium aluminate cement hydrate phases (CAH phases), which determine the drying behaviour of calcium aluminate bonded castables are not well understood.
B. Noll, T. Stein, O. Krause, R. Simmat
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