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Your search keyword '"E. A. Lantsev"' showing total 5 results
Start Over Author "E. A. Lantsev" Journal inorganic materials
5 results on '"E. A. Lantsev"'

3. Hydrolytic Stability of Y2.5Nd0.5Al5O12-Based Garnet Ceramics under Hydrothermal Conditions

Author

Maksim Boldin, V. N. Chuvil’deev, A. V. Nokhrin, A. I. Orlova, E. A. Lantsev, and L. S. Alekseeva

Subjects
Materials science, General Chemical Engineering, Metals and Alloys, chemistry.chemical_element, Spark plasma sintering, Yttrium, Neodymium, Hydrothermal circulation, Autoclave, Inorganic Chemistry, Hydrolysis, chemistry, Chemical engineering, visual_art, Materials Chemistry, visual_art.visual_art_medium, Ceramic, Leaching (metallurgy)
Abstract

We have studied the hydrolytic stability of Y2.5Nd0.5Al5O12-based garnet ceramics produced by spark plasma sintering. The ceramics have been tested under hydrothermal conditions in an autoclave and, for comparison, in static mode at room temperature. The mechanisms of yttrium and neodymium leaching from the ceramics have been identified.

Published
2021

4. Preparation of Fine-Grained CeO2–SiC Ceramics for Inert Fuel Matrices by Spark Plasma Sintering

Author

A. I. Orlova, N. V. Sakharov, Maksim Boldin, A. V. Nokhrin, V. N. Chuvil’deev, E. A. Lantsev, and L. S. Alekseeva

Subjects
010302 applied physics, Inert, Materials science, General Chemical Engineering, Composite number, Metallurgy, Metals and Alloys, Spark plasma sintering, Sintering, chemistry.chemical_element, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Inorganic Chemistry, Cerium, Fracture toughness, Thermal conductivity, chemistry, visual_art, 0103 physical sciences, Materials Chemistry, visual_art.visual_art_medium, Ceramic, 0210 nano-technology
Abstract

High-density (95.3–95.8%) CeO2–xα-SiC (x = 10, 20 vol %) composite ceramics have been produced for the first time by spark plasma sintering (SPS) as promising mineral-like materials for inert fuel matrices. The SPS of CeO2–SiC ceramics has been shown to be a three-stage process. The addition of α-SiC particles shifts characteristic temperatures of CeO2 sintering to higher values. SPS leads to an increase in the hardness, fracture toughness, and thermal conductivity of cerium dioxide-based ceramics.

Published
2020

5. Preparation of Fine-Grained Y2.5Nd0.5Al5O12 + MgO composite ceramics for Inert Matrix Fuels by Spark Plasma Sintering

Author

A. V. Nokhrin, Maksim Boldin, L.S. Golovkina, E. A. Lantsev, V. N. Chuvil’deev, A. I. Orlova, A. A. Murashov, and N. V. Sakharov

Subjects
010302 applied physics, Materials science, Aqueous solution, Precipitation (chemistry), General Chemical Engineering, Diffusion, Composite number, Metals and Alloys, Spark plasma sintering, Sintering, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Inorganic Chemistry, Magnesium nitrate, chemistry.chemical_compound, Chemical engineering, chemistry, visual_art, 0103 physical sciences, Materials Chemistry, visual_art.visual_art_medium, Ceramic, 0210 nano-technology
Abstract

We have studied the feasibility of preparing high-density (98.6–99.5%) Y2.5Nd0.5Al5O12 (YAG)–xMgO (x = 5, 10, 20 vol %) composite ceramics by spark plasma sintering. YAG–MgO powder materials have been prepared via MgO precipitation from an aqueous solution of magnesium nitrate, Mg(NO3)2, on the surface of garnet particles. The sintering rate of the YAG–MgO composites has been shown to be controlled by volume diffusion at low temperatures and by grain-boundary diffusion at elevated temperatures.

Published
2018

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