Self-propagating high temperature synthesis of SiAlON

Kheirandish, Alireza; Nekouee, Kh. A.; Khosroshahi, R. Azari; Ehsani, N.

doi:10.1016/j.ijrmhm.2015.11.010

Cited by 24 publications

(5 citation statements)

References 8 publications

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“…The formation of β‐SiAlON initially consists of the production of O‐SiAlON and X‐SiAlON, followed by the transformation of these polymorphs into β‐SiAlON 6 . O‐SiAlON (Si 2−x A1 x O 1+x N 2−x where 0 < x ≤ 0.4) itself exhibits good oxidation resistance to 1600°C and is being considered as a most promising material, especially as a thermal barrier coating for high temperature applications 7,8 . X‐SiAlON has a similar structure to that of mullite and a narrow solid solution range between Si 3 N 4 and mullite 9 with the composition ranging from SiAlO 2 N to Si 16.9 Al 22.7 O 48.8 N 11.6 10 .…”

Section: Introductionmentioning

confidence: 99%

“…6 O-SiAlON (Si 2−x A1 x O 1+x N 2−x where 0 < x ≤ 0.4) itself exhibits good oxidation resistance to 1600 • C and is being considered as a most promising material, especially as a thermal barrier coating for high temperature applications. 7,8 X-SiAlON has a similar structure to that of mullite and a narrow solid solution range between Si 3 N 4 and mullite 9 with the composition ranging from SiAlO 2 N to Si 16.9 Al 22.7 O 48.8 N 11.6 . 10 X-SiAlON possesses good oxidation resistance because it has the highest oxygen content among the other compounds and Si 3 N 4 in the quaternary system.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of SiAlON‐type compounds by carbothermal reduction and nitridation of nanoparticulate geopolymers

et al. 2023

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Various types of SiAlON compounds were synthesized by heating of carbon‐mixed, geopolymer compositions of M2O•Al2O3•4.5SiO2•12H2O + 9C. A fixed molar ratio of carbon to silica of 2 and charge‐balancing cations Na+, K+, or Cs+ were used to prepare the geopolymer‐carbon precursor resins. After curing, the precursors were ground to powders and then fired at 1400 to 1600°C for 2 h under flowing nitrogen. In contrast to previous studies, powdered forms of the precursors and moderate carbon ratios were used in these syntheses. X‐ray diffraction results indicated that phase‐pure β‐ or O‐SiAlON powders were synthesized, in the case of potassium at 1400 or 1500°C (for β‐SiAlON) and sodium cations at 1400°C (for O‐SiAlON), respectively. In the cases of cesium, high purity β‐SiAlON with some corundum and pollucite were synthesized. Furthermore, depending on the cation type and temperatures, tailored compositions of SiAlON or other compounds (mainly Al2O3) were formed by other reactions between precursors in this systematic study.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis of SiAlON‐type compounds by carbothermal reduction and nitridation of nanoparticulate geopolymers

et al. 2023

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“…This adiabatic container helps to keep the produced heat from a chemical reaction and causes the required energy to continue the reaction and achieving the final considered composition [10,11]. Besides, due to the simplicity and lower costs, and lower time in this method, it attracts much attention and diverse studies had been conducted on copper-based nanocomposites [12][13][14], titanium-based composites [15], aluminum-based composites [16] and even synthesizing of high entropy alloys [17,18]. Also, this method had a high potential to use in the mass production of considered composites.…”

Section: Introductionmentioning

confidence: 99%

Thermodynamically study of phase formation of Ni-Ti-Si nanocomposites produced by self-propagating high-temperature synthesis method

et al. 2021

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Understanding the phase formation mechanisms in self-propagating high-temperature synthesis from the thermodynamical aspect of view is important. In this study, the phase formation of the ternary system of nickel-titanium-silicon was studied by using the HSC software V6.0, and phase formation is predicted by calculating the adiabatic temperature of exothermic reaction between reagents. Then, by using X-ray diffractometer analysis, the results of the simulation were evaluated by experimental achievements. Results showed a good correlation between thermodynamical calculation and prediction with experimental. It could be concluded that the equilibrium mechanism is the dominant mechanism in phase formation in the SHS synthesis method. NiTiSi solid solution phase is obtained from the reaction between Ti5Si3 and Ni2Si and Ni.

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“…Combustion synthesis (CS) or Self‐propagating high‐temperature synthesis (SHS) is a potent, and low‐cost technique for the synthesis of numerous industrially valuable materials and is used in the fabrication of several ceramic powders for a variety of cutting‐edge uses. Widespread research has been conducted in recent years emphasizing the SHS abilities for environmental protection, materials development, and energy savings 12,17,18 . Oxide powders can be prepared by the combination of metal salt like nitrates, sulfates, and to name but two, in an aqueous solution with one type of fuel or a mixture of fuel.…”

Section: Introductionmentioning

confidence: 99%

A comparative study on citrate sol‐gel and combustion synthesis methods of CoAl₂O₄ spinel

Baseri

Naghizadeh

Rezaie

et al. 2020

Int J Applied Ceramic Tech

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Aluminates are chemicals made up of ceramic materials based on aluminum oxide as the main constituent. Aluminate materials are widely used in high-technology applications due to their unique properties, for instance, in magnetic materials, ceramic catalysis, absorbent materials, and so forth. 1-4 Spinel is a ceramic oxide with three elements which its general chemical formula is AB 2 O 4 where, in normal spinels, A stands for a bivalent metal cation (A 2+) which occupies a tetrahedral site and B represents a trivalent (B 3+) metal cation which occupies an octahedral site of a cubic lattice. In the same time, in inverse spinels, bivalent cation (A 2+) occupies an octahedral site and a trivalent (B 3+) cation occupies both octahedral and tetrahedral site. 4-6 Nowadays, cobalt aluminate (CoAl 2 O 4) are used as a color pigment in digital ceramic printing, cobalt and gibbsite precursor, catalyst, and color filter. 1-6 Moreover, this kind of spinel is one of the great interests among spinels due to its significant properties such as thermal and chemical stability, 6 optical host matrix, 4 high ability of cation diffusion, 4-7 catalytic application, to name but four. 8-10 Cobalt aluminate conventionally was synthesized by mixing alumina and cobalt oxide, and calcination of the mixture at ~1200°C for an extended period. This type of synthesis requires a long distance diffusion of metal ion that could lead to inhomogeneous and nonstoichiometry spinel. 3 Many novel synthesis methods, like combustion synthesis, 2,11-13 sol-gel, 14,15 low-temperature combustion synthesis (LCS), 3,16 reverse micelle processing, 5 polymeric precursors method, 4 etc. are used to solve these drawbacks. Combustion synthesis (CS) or Self-propagating high-temperature synthesis (SHS) is a potent, and low-cost technique for the synthesis of numerous industrially valuable materials and is used in the fabrication of several ceramic powders for

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Self-propagating high temperature synthesis of SiAlON

Cited by 24 publications

References 8 publications

Synthesis of SiAlON‐type compounds by carbothermal reduction and nitridation of nanoparticulate geopolymers

Synthesis of SiAlON‐type compounds by carbothermal reduction and nitridation of nanoparticulate geopolymers

Thermodynamically study of phase formation of Ni-Ti-Si nanocomposites produced by self-propagating high-temperature synthesis method

A comparative study on citrate sol‐gel and combustion synthesis methods of CoAl₂O₄ spinel

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Self-propagating high temperature synthesis of SiAlON

Cited by 24 publications

References 8 publications

Synthesis of SiAlON‐type compounds by carbothermal reduction and nitridation of nanoparticulate geopolymers

Synthesis of SiAlON‐type compounds by carbothermal reduction and nitridation of nanoparticulate geopolymers

Thermodynamically study of phase formation of Ni-Ti-Si nanocomposites produced by self-propagating high-temperature synthesis method

A comparative study on citrate sol‐gel and combustion synthesis methods of CoAl2O4 spinel

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A comparative study on citrate sol‐gel and combustion synthesis methods of CoAl₂O₄ spinel