Journal ArticleDOI
Synthesis and consolidation of boron carbide: a review
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TLDR
In this article, all the techniques on synthesis and consolidation of boron carbide are discussed in detail and critically reviewed, including hot pressing and hot isostatic pressing are the main processes employed for densification.Abstract:
Boron carbide is a strategic material, finding applications in nuclear industry, armour for personnel and vehicle safety, rocket propellant, etc. Its high hardness makes it suitable for grinding and cutting tools, ceramic bearing, wire drawing dies, etc. Boron carbide is commercially produced either by carbothermic reduction of boric acid in electric furnaces or by magnesiothermy in presence of carbon. Since many specialty applications of boron carbide require dense bodies, its densification is of great importance. Hot pressing and hot isostatic pressing are the main processes employed for densification. In the recent past, various researchers have made attempts to improve the existing methods and also invent new processes for synthesis and consolidation of boron carbide. All the techniques on synthesis and consolidation of boron carbide are discussed in detail and critically reviewed.read more
Citations
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Boron Carbide: Structure, Properties, and Stability under Stress
TL;DR: A comprehensive review of the recent advances in understanding of structural and chemical variations in boron carbide and their influence on electronic, optical, vibrational, mechanical and ballistic properties is provided in this article.
Journal ArticleDOI
Review on ultra-high temperature boride ceramics
TL;DR: In this paper, the authors comprehensively review the various routes/techniques, including the advanced ones, as adopted for the synthesis and densification of the di-borides, and discuss the effects of sinter-additives and reinforcements on the densification, microstructure and various properties, including elevated temperature properties.
Journal ArticleDOI
Mechanical and electronic properties of diborides of transition 3d–5d metals from first principles: Toward search of novel ultra-incompressible and superhard materials
TL;DR: In this article, a review of the recent advances in theoretical understanding and predictions of the mechanical properties (including elastic (reversible) deformations, which are related to compressibility, as well as the effects of plastic (irreversible)-deformation, which is related to hardness of materials) as obtained by means of ab initio calculations for a broad family of metal diborides MB 2 (AlB 2 -like dibors and the recently discovered dibborides of heavy 4 d and 5 d metals with “puckered” boron
Journal ArticleDOI
Central composite design (CCD)-Response surface methodology (RSM) of effective electrospinning parameters on PVP-B-Hf hybrid nanofibrous composites for synthesis of HfB2-based composite nanofibers
Raziyeh Ghelich,Mohammad Reza Jahannama,Hossein Abdizadeh,Fatemeh Sadat Torknik,Mohammad Reza Vaezi +4 more
TL;DR: In this article, a five-level-five-factor central composite (circumscribed) design (CCD) approach-based response surface methodology (RSM) analysis was applied to statistically specify the effect of important process variables, such as initial PVP polymer concentration (6−14 wt %), applied voltage (10−22kV), flow rate (4−16 μlit/min), nozzle-collector distance (10 −18 cm), and molar ratio of boron to hafnium (2.2−5.8)
Journal ArticleDOI
Influence of spark plasma sintering parameters on densification and mechanical properties of boron carbide
TL;DR: In this paper, the porosity of boron carbide was measured and the effect of porosity on mechanical properties (hardness, fracture toughness, and elastic modulus) was investigated.
References
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Journal ArticleDOI
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Journal ArticleDOI
Boron carbide ― a comprehensive review
TL;DR: Boron carbide has high melting point, outstanding hardness, good mechanical properties, low specific weight, great resistance to chemical agents and high neutron absorption cross-section (10BxC, x>4) is currently used in high-technology industries as discussed by the authors.
BookDOI
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TL;DR: Theoretical interest in the properties of Boron and its properties can be found in this article, where the electronic structure of the Hexaborides and the Diborides is discussed.
BookDOI
Carbide, nitride and boride materials synthesis and processing
TL;DR: In this paper, the authors present an overview of safety issues in non-oxide materials and their application in the development of complex composites and solid solutions, including a discussion of the safety issues of carbide and nitride powders.