Results 31 to 40 of about 760 (278)

Implementation of industrial waste ferrochrome slag in conventional and low cement castables: Effect of calcined alumina

Journal of Asian Ceramic Societies, 2014
A new class of conventional and low-cement ferrochrome slag-based castables were prepared from 40 wt.% ferrochrome slag and 45 wt.% calcined bauxite. Rest fraction varied between high alumina cement (HAC) acting as hydraulic binder and calcined alumina ...
Pattem Hemanth Kumar, Abhinav Srivastava, Vijay Kumar, Vinay Kumar Singh   +3 more
doaj   +1 more source

Influence of the type of phosphate additive and its concentration on the setting kinetics of CA cement bonded refractory castables with special regard to the resulting pH value

Open Ceramics, 2023
During the hydration of CA cement exists a dormant period, which is responsible for the setting kinetics of CA cement bonded refractory castables. The dormant period is believed to be caused by an Al–O–H passivation layer on the CA cement particles ...
J. Kasper, M. Bastian, C. Dannert
doaj   +1 more source

Binder effect on ZnAl2O4-containing high-alumina refractory castables [PDF]

, 2022
In situ spinel (MgAl2O4, ZnAl2O4, etc.) formation in alumina-based castables has been pointed out as a key issue in the refractory area, as it may enhance the mechanical properties and corrosion resistance of such materials.
Pandolfelli, V.C., Luz, A.P., Borges, O.H., Pinto, V.S.   +3 more
core   +1 more source

Reologia de concretos refratários na presença de diferentes tipos de aditivo e ligante hidráulico Refractory castables rheology in the presence of different sort of additive and hydraulic binders

Cerâmica, 2007
Aditivos químicos podem ser adicionados aos concretos refratários com diferentes propósitos, como por exemplo, visando a dispersão das partículas finas da matriz por meio de mecanismos de dispersão eletrostáticos/eletroestéricos (dispersantes) e para ...
I. R. Oliveira, V. C. Pandolfelli
doaj   +1 more source

CAQ Corner: Immune‐mediated complications

, 2022
Liver Transplantation, EarlyView.
Mary Thomson, John R. Lake
wiley   +1 more source

Effect of silica fume additions on the hydration behaviour of calcium aluminates [PDF]

, 1997
In the recent refractory castables technology, the calcium aluminate cement is being replaced in increasing proportion by very fine matrix components, such as silica fume and colloidal alumina.
Fumo, Daniel A., Segadães, Ana M.
core   +1 more source

The Impact of <i>In Situ</i>-Formed Spinel on the Porosity of No-Cement Refractory Castables [PDF]

, 2017
The paper focuses on the determination of how in-situ formed magnesia-alumina spinel (MA spinel) content in corundum refractory castables influences the final properties and pore size distribution of no-cement refractory castables.
Lenka Nevřivová
core   +1 more source

Low‐Angle Grain Boundaries and Re‐Segregation in Single‐Crystalline Ni‐Base Superalloys

Advanced Engineering Materials, EarlyView.
This work demonstrates that Re‐segregation at low‐angle grain boundaries (LAGBs) in Ni‐base superalloys is influenced by misorientation angle. Advanced microscopy and atom probe tomography reveal that higher misorientation angles increases Re‐segregation.
Alireza B. Parsa, Aparna Saksena, Alesander Kostka, Pascal Thome, Felicitas Scholz, Alexandre Mussi, Christoph Somsen, Baptiste Gault, Jan Frenzel, Gunther Eggeler   +9 more
wiley   +1 more source

Analysis of the Structure and Durability of Refractory Castables Impregnated with Sodium Silicate Glass

Ceramics, 2023
This study examines the impact of the impregnation of fireclay-based conventional (CC) and medium-cement castables (MCCs) with liquid sodium silicate glass under vacuum conditions.
Jurgita Malaiškienė, Valentin Antonovič, Renata Boris, Andrius Kudžma, Rimvydas Stonys   +4 more
doaj   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

Advanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang, Aparajita Pramanik, Sandipan Sen, Shubhashis Dixit, Marcel Muench, R. J. Vikram, Daniel Schliephake, Yolita M. Eggeler, Ankur Chauhan, Martin Heilmaier, Alexander Kauffmann   +10 more
wiley   +1 more source