Journal ArticleDOI
Role of different rare earth oxides on the reaction sintering of magnesium aluminate spinel
TLDR
In this paper, the effect of three rare earth oxides, viz., La2O3, CeO2 and YbO3 on reaction sintering of magnesium aluminate spinel having molar ratio of MgO:Al 2O3 = 1:2 from its solid oxide precursors was investigated in static and dynamic heating conditions.About:
This article is published in Ceramics International.The article was published on 2019-06-15. It has received 21 citations till now. The article focuses on the topics: Spinel & Sintering.read more
Citations
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Hierarchical hollow manganese-magnesium-aluminum ternary metal oxide for fluoride elimination.
TL;DR: The synthesis of a novel hierarchical hollow manganese-magnesium-aluminum ternary metal oxide via a green hydrothermal strategy coupled with a calcination process serves as a robust adsorbent for fluoride elimination.
Journal ArticleDOI
Preparation and properties of MgAl2O4 spinel ceramics by double-doped Sm2O3–(Y2O3, Nb2O5 and La2O3)
TL;DR: In this article, a series of MgAl2O4 spinel ceramics with high-density have been fabricated by solid-state reaction sintering, and the role of different composite oxide additives including Sm2O3, Y2O5O12, SmAlO3 and SmAl11LaO19 was investigated.
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Thermodynamics and kinetics of REEs in CaO–SiO2–CaF2–Ce2O3 system: A theoretical basis toward sustainable utilization of REEs in REE-Bearing slag
TL;DR: In this article, the phase equilibria of rare earth elements (REEs) in REE-bearing slag were investigated, and the exact initial crystallization temperature of cefluosil (Ce9.33-xCax(SiO4)4O5-0.5xF2) in the system was 1450 K and the ceffluosil crystals were in a hollow hexagonal prism shape.
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The effect of SnO2 additive on the densification, microstructure and mechanical properties of MgAl2O4–CaAl12O19 composites
TL;DR: In this article, MgAl2O4-CaAl12O19 (MA-CA6) composites with SnO2 additive by solid-state reaction sintering at 1200-1600°C were prepared.
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Sintering mechanism and properties of MgAl2O4–CaAl12O19 composites with ZnO addition
TL;DR: In this paper, the effects of ZnO addition on the physical and mechanical properties, microstructure, and phase composition of MgAl2O4-CaAl12O19 (MA-CA6) composites were investigated.
References
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Journal ArticleDOI
Kinetic Analysis of Solid-State Reactions: The Universality of Master Plots for Analyzing Isothermal and Nonisothermal Experiments
TL;DR: In this paper, the concept of generalized time, introduced by Ozawa, has been used to define master plots for the analysis of solid-state reactions, regardless of the type of temperature program used for recording the experimental data.
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Theoretical studies on the impedance-humidity characteristics of ceramic humidity sensors
TL;DR: In this paper, a general equation is derived to calculate the impedance of the model sensor at a certain relative humidity using the Kelvin equation, and an analytical model is proposed to clarify the relationship between the impedance-humidity characteristics and the pore size distribution.
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Mechanism of Solid‐state Reaction Between Magnesium Oxide and Aluminum Oxide and Between Magnesium Oxide and Ferric Oxide
TL;DR: Inert marker experiments have shown that the solid-state reactions forming MgAl2O4 and MgFe3+, and A13+ ions through the relatively rigid oxygen lattice of the spinel or ferrite as mentioned in this paper.
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Thermodynamic Assessment of the System MgO–Al2O3
TL;DR: In this paper, the system MgO-Al2O3 was assessed with the CALPHAD technique using a computerized optimization procedure called PARROT, which resulted in a consistent thermodynamic description for most available experimental data points on the phase diagram as well of the thermodynamic properties.
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Coupled thermodynamic-phase diagram assessment of the rare earth oxide-aluminium oxide binary systems
Ping Wu,Arthur D. Pelton +1 more
TL;DR: In this article, a critical assessment of binary R 2 O 3 -Al O 3 systems (RLa, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu) has been carried out through the technique of coupled thermodynamic-phase diagram analysis.