Journal Article10.1016/0955-2219(90)90048-K
Boron carbide ― a comprehensive review
1.3K
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.
read more
Abstract: Boron carbide, which has a 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—fast-breeders, lightweight armors and high-temperature thermoelectric conversion.
The contents of this review are: (1) introduction; (2) preparations—industrial preparative routes, powders, sintering (additives, pressureless, hot pressing, HIP); laboratory methods of synthesis (CVD, PVD, plasma, crystal growth); (3) analytical characterization; (4) phase diagram—a peritectic, nearly pure boron, and a wide phase homogeneity range (B4C-B10·5C); (5) rhombohedral crystal structure—a comprehensive model of the whole solid solution is proposed; (6) chemical properties; (7) physical properties—density, mechanical (strength, hardness, toughness) and thermo-electrical properties; (8) main industrial applications; (9) conclusion.
read more
Chat with Paper
AI Agents for this Paper
Find similar papers on Google Scholar, PubMed and Arxiv
Write a critical review of this paper
Analyze citations of this paper to find unaddressed research gaps
Citations
Sintering of B4C by Pressureless Liquid Phase Sintering
TL;DR: The effect of three different sintering additive systems on densification of boron carbide powder was investigated in this paper, where the authors showed that the best densification result was achieved with Al2O3:Y2O 3 additive system, showing 920 % of theoretical density, low porosity and 152 % of linear shrinkage.
8
The study of diffuse interface propagation of dynamic failure in advanced ceramics using the phase-field approach
TL;DR: In this article , a phase-field approach is used by carefully selecting the interfacial energy allowing a monolithic numerical solution method capturing strong coupling between mechanics and damage, and the results are important for modeling anisotropic fracture in advanced ceramics and designing materials with desired dynamic failure characteristics.
8
Potential Semiconducting and Superconducting Metastable Si3C Structures under Pressure
TL;DR: In this paper, a cubic Si0.75C0.25 alloy was computed to be a semiconductor with a direct band gap of about 1.3 eV, within the desired values.
7
Enhanced strength and ductility of superhard boron carbide through injecting electrons
Yi He,Yidi Shen,Bin Tang,Qi An +3 more
TL;DR: In this article, the authors employed density functional theory (DFT) to examine the deformation and failure mechanism under neutral, injected-electron and injected-hole states and found that both strength and ductility of B4C can be enhanced by injecting electrons.
7
Preparation of homogeneous B4C ceramics with high toughness by tape casting
TL;DR: The homogeneous B 4 C ceramics were successfully prepared through tape casting, laminating, and hot pressing as discussed by the authors, and they exhibited a shear thinning behavior.
7
References
Boron and Refractory Borides
Vlado I. Matkovich
- 01 Jan 1977
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.
1K
Boron carbide structure by Raman spectroscopy
TL;DR: Comparison of boron carbide Ramen spectra with the Raman spectra of {alpha}-rhombohedralboron, borons phosphide, and bor on arsenide has confirmed the following structural model derived from theoretical considerations and electrical and thermal transport data.
321
Processing of boron carbide-aluminum composites
TL;DR: In this paper, the authors established reliable criteria for fabricating B4C-AI particulate composites based on fundamental capillarity thermodynamics, reaction thermodynamics and densification kinetics.