“…Magnesium diboride MgB 2 is an attractive superconductor with the critical transit point of Тc = 39- [112], (f) TaB 2 [115], (g) ZrB 2 [116], (h) TiN-TiB 2 [118], (i) SiC; (j) AlN-TiN [120], (k) β-Si 6-z Al z O z N 8-z [123]; (l) Y-SiAlON [124].…”
Section: Shs-ceramicsmentioning
confidence: 99%
“…rapid SHS reaction occurs at high heating rates [112]. Figure 9. Typical microstructures of SHS-ceramics: (a) NbSi 2 –Si 3 N 4 [108], (b) TaSi 2 –SiC–Si 3 N 4 [109], (c) ZrSi 2 –SiC [110], (d) WSi 2 –SiC [111], (e) B 4 C–TiB 2 [112], (f) TaB 2 [115], (g) ZrB 2 [116], (h) TiN–TiB 2 [118], (i) SiC; (j) AlN–TiN [120], (k) β-Si 6-z Al z O z N 8-z [123]; (l) Y-SiAlON [124]. Figure 10. Two schemes for synthesis ceramics: (a) RSPS; (b) SHS + SPS.…”
Section: Shs-ceramicsmentioning
confidence: 99%
“…Typical microstructures of SHS-ceramics: (a) NbSi 2 –Si 3 N 4 [108], (b) TaSi 2 –SiC–Si 3 N 4 [109], (c) ZrSi 2 –SiC [110], (d) WSi 2 –SiC [111], (e) B 4 C–TiB 2 [112], (f) TaB 2 [115], (g) ZrB 2 [116], (h) TiN–TiB 2 [118], (i) SiC; (j) AlN–TiN [120], (k) β-Si 6-z Al z O z N 8-z [123]; (l) Y-SiAlON [124]. …”
Self-propagating high-temperature synthesis (SHS) or combustion synthesis (CS) is a rapidly developing research area. SHS materials are being used in various fields, including mechanical and chemical engineering, medical and bioscience, aerospace and nuclear industries. The goal of the present paper is to provide a comprehensive state-of-the-art review and to analyse a critical mass of knowledge in the field of SHS materials and coatings. We also briefly discuss the history and scientific foundations of SHS along with an overview of the technological aspects for synthesis of different materials, including powders, ceramics, metal-ceramics, intermetallides, and composite materials. Application of CS in the field of surface engineering is also discussed focusing on two main routes for applying SHS to coating deposition: (i) single-step formation of the desired coatings and (ii) use of SHSderived powders, targets or electrodes in the coating deposition processes.
“…Magnesium diboride MgB 2 is an attractive superconductor with the critical transit point of Тc = 39- [112], (f) TaB 2 [115], (g) ZrB 2 [116], (h) TiN-TiB 2 [118], (i) SiC; (j) AlN-TiN [120], (k) β-Si 6-z Al z O z N 8-z [123]; (l) Y-SiAlON [124].…”
Section: Shs-ceramicsmentioning
confidence: 99%
“…rapid SHS reaction occurs at high heating rates [112]. Figure 9. Typical microstructures of SHS-ceramics: (a) NbSi 2 –Si 3 N 4 [108], (b) TaSi 2 –SiC–Si 3 N 4 [109], (c) ZrSi 2 –SiC [110], (d) WSi 2 –SiC [111], (e) B 4 C–TiB 2 [112], (f) TaB 2 [115], (g) ZrB 2 [116], (h) TiN–TiB 2 [118], (i) SiC; (j) AlN–TiN [120], (k) β-Si 6-z Al z O z N 8-z [123]; (l) Y-SiAlON [124]. Figure 10. Two schemes for synthesis ceramics: (a) RSPS; (b) SHS + SPS.…”
Section: Shs-ceramicsmentioning
confidence: 99%
“…Typical microstructures of SHS-ceramics: (a) NbSi 2 –Si 3 N 4 [108], (b) TaSi 2 –SiC–Si 3 N 4 [109], (c) ZrSi 2 –SiC [110], (d) WSi 2 –SiC [111], (e) B 4 C–TiB 2 [112], (f) TaB 2 [115], (g) ZrB 2 [116], (h) TiN–TiB 2 [118], (i) SiC; (j) AlN–TiN [120], (k) β-Si 6-z Al z O z N 8-z [123]; (l) Y-SiAlON [124]. …”
Self-propagating high-temperature synthesis (SHS) or combustion synthesis (CS) is a rapidly developing research area. SHS materials are being used in various fields, including mechanical and chemical engineering, medical and bioscience, aerospace and nuclear industries. The goal of the present paper is to provide a comprehensive state-of-the-art review and to analyse a critical mass of knowledge in the field of SHS materials and coatings. We also briefly discuss the history and scientific foundations of SHS along with an overview of the technological aspects for synthesis of different materials, including powders, ceramics, metal-ceramics, intermetallides, and composite materials. Application of CS in the field of surface engineering is also discussed focusing on two main routes for applying SHS to coating deposition: (i) single-step formation of the desired coatings and (ii) use of SHSderived powders, targets or electrodes in the coating deposition processes.
“…ere have been many research studies concerning the fabrication of h-BN and ceramic composite containing h-BN by combustion synthesis in recent years [12][13][14]. e present work attempted to prepare h-BN by combustion synthesis.…”
Hexagonal boron nitride (h-BN) powders were fabricated by the combustion synthesis with B/KNO3/HMX (octogen) mixtures as reactants. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) were adopted to investigate the phase composition and the chemical composition of the products, respectively. The morphology and resistance to oxidation were studied by scanning electron microscopy (SEM) and thermogravimetry (TGA), respectively. The characterization results showed that the h-BN which was produced through this method has high purity and exhibits excellent resistance to oxidation. The purity of h-BN is improved with the increasing content of HMX in reactants with boron carbide (B4C) and boron oxide (B2O3) as main impurity, but conversely, the yields are obviously decreased. Taking the comprehensive consideration of the purity and the yields together, the optimal molar ratio of B/KNO3/HMX is 10 : 1 : 4. In addition, the experimental results indicated that the crystalline grain size grows with the increasing content of HMX. The method explored in this study does not need expensive processing facilities and equipment, which is a preferable approach for the laboratory to prepare h-BN of high purity.
“…h-BN has a wide rang of applications, arising from its excellent proprieties such as low dielectric dissipation fraction, a very high sublimation temperature of about 3000 • C and good machinability [3]. In our study, we utilized BNNTs and BNNPs, h-BN with different morphologies, as the reinforcements, to fabricate composites with high flexure strength and low dielectric constant.…”
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