Ceramics and Cermets Based on Nonoxide Refractory Compounds

Grigor'ev, O. N.

doi:10.1007/s11106-013-9485-y

Cited by 7 publications

(2 citation statements)

References 20 publications

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“…Many cermet B 4 C matrix composites have been reported, 24 including titanium, 25 copper, 26 and aluminum‐reinforced refractory carbides 27 . These incorporations facilitate structural ductility, resist fractures, plastic deformation, and material creep 28 . Most importantly, they toughen resulting composites by interacting any propagating cracks with tougher secondary phases and deflecting them around the occluded phases 29 .…”

Section: Introductionmentioning

confidence: 99%

Synthesis, structure, and properties of polymer‐derived, metal‐reinforced boron carbide cermet composites

Dyatkin

Laskoski

Edelen

et al. 2020

Int J Applied Ceramic Tech

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We report on a novel polymer‐derived synthesis approach that yields boron carbide monoliths and metal‐reinforced B4C cermets. This single‐step approach relies on a preceramic powder blend of boron and an acetylenic resin with a high char yield. At low temperatures below 1500°C and without applied pressures, preceramic precursor reaction bond together and form nanocrystalline refractory B4C matrices. Resulting near net shape boron, carbide monoliths exhibit small crystal grain sizes, maintain chemical purity, and exhibit morphological homogeneity. We reinforce the refractory carbide with five different metals and demonstrate the influence of each on the density, hardness, oxidation stability, and electronic conductivity of resulting cermet composites. We assess the optimal synthesis and reinforcement strategies that tailor these nanostructured materials for inexpensive and high‐performing engineering applications.

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Section: Introductionmentioning

confidence: 99%

Synthesis, structure, and properties of polymer‐derived, metal‐reinforced boron carbide cermet composites

Dyatkin

Laskoski

Edelen

et al. 2020

Int J Applied Ceramic Tech

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“…The development of high-strength structural ceramics for diferent purposes, especially for the use in extreme operating conditions in various fields of technology is one of the traditional areas of research at the I.M. Frantsevich Institute for Problems of Materials Science of the National Academy of Sciences of Ukraine [1].…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Composition and Process of Preparation of Hot-pressed Ceramics with Increased Characteristics Based on Boron Carbide

Volkogon¹,

Avramchuk²,

Kovalchuk³

et al. 2020

J. Nano- Electron. Phys.

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The optimal composition and conditions for obtaining hot-pressed ceramics based on powders of technical boron carbide, which has high physical and mechanical properties and can be effectively used in extreme operating conditions, are determined. The influence of activating impurities in the form of oxides in the composition of the initial charge on the formation of the composite material structure in the process of hot pressing is experimentally established. X-ray diffraction analysis of heterophase ceramics which is formed is carried out and it is shown that in the process of hot pressing of ceramics, borides of the corresponding oxides are formed, refining of ceramics with the emergence of secondary structures takes place, and heterogeneous state of the formed ceramics provides a high level of structural characteristics. It is established that the use of activating impurities in the form of Cr2O3, TiO2 and SiO2 oxides provides the possibility of using industrial technical powders of boron carbide with high free carbon content in the production of ceramics with fine-grained structure and high mechanical properties (Gzg  600-800 MPa) in a wide temperature range.

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Corrosion Resistance of Ultrahigh-Temperature Zirconium Boride Ceramics Under Concentrated Solar Radiation

Mosina

Neshpor

Grigoriev

et al. 2015

Powder Metall Met Ceram

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Ceramics and Cermets Based on Nonoxide Refractory Compounds

Cited by 7 publications

References 20 publications

Synthesis, structure, and properties of polymer‐derived, metal‐reinforced boron carbide cermet composites

Synthesis, structure, and properties of polymer‐derived, metal‐reinforced boron carbide cermet composites

Optimization of the Composition and Process of Preparation of Hot-pressed Ceramics with Increased Characteristics Based on Boron Carbide

Corrosion Resistance of Ultrahigh-Temperature Zirconium Boride Ceramics Under Concentrated Solar Radiation

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