Journal ArticleDOI
Easy-to-use mullite and spinel sols as bonding agents in a high-alumina based ultra low cement castable
S. Mukhopadhyay,Santonu Ghosh,Manoj K. Mahapatra,R. Mazumder,Prasenjit Barick,Sapna Gupta,S. Chakraborty +6 more
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TLDR
In this article, the preparation of colloidal suspensions of mullite and magnesium-aluminate spinel via a cheaper precursor of alumina sol was dealt with and the results confirm that the mullite sol excels while the spinel sol degrades the refractory castable quality.About:
This article is published in Ceramics International.The article was published on 2002-01-01. It has received 57 citations till now. The article focuses on the topics: Mullite & Spinel.read more
Citations
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Journal ArticleDOI
Nano-bonded refractory castables
M. Nouri-Khezrabad,Mariana A. L. Braulio,Victor C. Pandolfelli,Farhad Golestani-Fard,Hamid Reza Rezaie +4 more
TL;DR: In this paper, a comparison of different binding systems for refractory castables is shown and the benefits of replacing CAC or hydratable alumina by colloidal binders is discussed.
Journal ArticleDOI
Effect of preformed and in situ spinels on microstructure and properties of a low cement refractory castable
S. Mukhopadhyay,P. K. Das Poddar +1 more
TL;DR: In this paper, two types of magnesium-aluminate spinels, one commercially available as preformed powder and the other prepared from cheaper precursors by the sol-gel route as a semidried reactive mass, were characterized in terms of particle size distribution, XRD phase evolution and chemical composition.
Journal ArticleDOI
X-ray Linear Dichroism in cubic compounds: the case of Cr3+ in MgAl2O4
Amélie Juhin,Christian Brouder,Marie-Anne Arrio,Delphine Cabaret,Philippe Sainctavit,Etienne Balan,Etienne Balan,Amélie Bordage,Ari P. Seitsonen,Georges Calas,Sigrid Griet Eeckhout,Pieter Glatzel +11 more
TL;DR: In this paper, the angular dependence of the pre-edge of a cubic crystal was measured by means of x-ray absorption near-edge structure spectroscopy and compared to calculations based on density functional theory and ligand field multiplet (LFM) theory.
Journal ArticleDOI
The influence of compound additive on magnesium oxychloride cement/urban refuse floor tile
TL;DR: In order to improve the physical performances of the magnesium oxychloride cement floor tile, phosphate, stearic acid-styrene acrylic acids copolymer emulsion were adopted as mentioned in this paper.
Journal ArticleDOI
Microstructures of refractory castables prepared with sol–gel additives
Santonu Ghosh,Rabindranath Majumdar,B.K. Sinhamahapatra,R.N. Nandy,M. Mukherjee,S. Mukhopadhyay +5 more
TL;DR: In this article, several kinds of inorganic sol and gel materials were applied to high alumina based low and ultra low cement refractory castable compositions and these were fired at elevated temperature.
References
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Book
Introduction to the Principles of Ceramic Processing
TL;DR: In this paper, the authors present an introductory text book for an introductory course in ceramic engineering, "Introduction to Principles of Ceramic Processing", which introduces the student and engineer to porcelain, enamels, abrasives and refractories.
Journal ArticleDOI
Defect reactions and the controlling mechanism in the sintering of magnesium aluminate spinel
Ching-Jui Ting,Hong-Yang Lu +1 more
TL;DR: In this article, a Brouwer defect equilibrium diagram is constructed that assumes intrinsic defects of the Schottky type, and the densification rate derived from sintering kinetics is compared with the compositions investigated when the concentration is converted to the activity of the two oxide components in MgAl2O4.
Journal ArticleDOI
Gelation of Aluminum Hydroxide Sols
A. C. Pierre,Donald R. Uhlmann +1 more
TL;DR: On etudie la gelification des sols colloidaux de Al(OH) 3 obtenus a partir de butoxyde secondaire d'aluminium en fonction des conditions de preparation (pH, temperature, duree de vieillissement).
Journal ArticleDOI
Characterization and sintering of MgAl spinel prepared by spray-pyrolysis technique
Yoko Suyama,Akio Kato +1 more
TL;DR: In this article, a spray-pyrolysis technique was used to extract magnesium, aluminate spinel powders from a corresponding nitrate solution, which were characterized by poor crystallinity, large specific surface area, and hollow spheres 1-20μm in size.
Journal ArticleDOI
Chemistry-crystallization relations in molecular mullite gels
TL;DR: In this article, it was shown that aluminosilicate gels are phase-separated prior to crystallization by a hydrothermal reaction known as dealumination.
Related Papers (5)
Effect of preformed and in situ spinels on microstructure and properties of a low cement refractory castable
S. Mukhopadhyay,P. K. Das Poddar +1 more
Microstructural analysis of corroded alumina-spinel castable refractories
Microstructural evolution in self-forming spinel/calcium aluminate-bonded castable refractories
M. Fuhrer,A. Hey,W.E. Lee +2 more