Journal ArticleDOI
Conditions of preparation of zirconium silicides
TLDR
In this paper, a study was made of conditions under which the zirconium suicides were produced by the silicothermic reduction of ZIRconium dioxide in a vacuum, and it was shown that lower-silicon phases Zr5Si3 and Zr2Si cannot be produced by this technique.Abstract:
1.
A study was made of conditions under which the zirconium suicides ZrSi2, ZrSi, Zr5Si3, and Zr2Si are produced by the silicothermic reduction of zirconium dioxide in a vacuum.
2.
It has been established that silicothermic reduction in graphite furnaces can yield only the suicides ZrSi2 and ZrSi. The lower-silicon phases Zr5Si3 and Zr2Si cannot be produced by this technique.
3.
At temperatures in excess of 1700°C, owing to the low thermodynamic stability of the lower suicides and the occurrence of several secondary reactions, the principal reaction products are silicon, which vigorously evaporates, and zirconium carbide.read more
Citations
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Journal ArticleDOI
Size controlled mechanochemical synthesis of ZrSi2.
David T. Restrepo,Sandra M. Hick,Carolin Griebel,Juan Alarcón,Kyle E. Giesler,Yan Chen,Nina Orlovskaya,Richard G. Blair +7 more
TL;DR: Mechanochemical metathesis reactions were utilized to synthesize nanocrystalline ZrSi(2) ranging from 9-30 nm in size, requiring the input of mechanical energy.
Journal ArticleDOI
In situ nano-sized ZrC/ZrSi composite powder fabricated by a one-pot electrochemical process in molten salts
TL;DR: In this paper, the authors investigated the pathway from the precursor of ZrSiO4/carbon to ZrC/ZrSi composites by time-dependent electrochemical reduction experiments.
Journal ArticleDOI
A novel preparation of Zr–Si intermetallics by electrochemical reduction of ZrSiO4 in molten salts
TL;DR: In this article, a method of controllably preparing Zr-Si intermetallics by the electrochemical reduction of ZrSiO4 and SiO2 mixed powders in molten CaCl2-NaCl at 800 °C is developed.
Journal ArticleDOI
Development of ZrB2-Based Single Layer Absorber Coating and Molten Salt Corrosion of Bulk ZrB2–SiC Ceramic for Concentrated Solar Power Application
TL;DR: In this article, a single layer ZrB2-SiC-based ceramic absorber coating on stainless substrate was developed, and another aim was to explore the degradation of ZRB2SiC bulk ceramic in molten solar salt.
Journal ArticleDOI
Exothermic reaction waves in ZrSiO4/Mg/diluent systems
TL;DR: An experimental study of thermal behavior in exothermic wave propagation in ZrSiO 4 ǫ+4Mg+k SH systems (where SH is a sodium halide) was conducted using a thermocouple technique.
References
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Journal ArticleDOI
The Vapor‐Phase Deposition of Refractory Materials I. General Conditions and Apparatus
TL;DR: In this paper, conditions and apparatus for applying coatings of the refractory metals, carbides, nitrides, borides, silicides, and oxides by vapor phase deposition are described.