Synthesis of High-Density Pellets of Uranium Dioxide by Spark Plasma Sintering in Dies of Different Types

Spark Plasma Sintering of WC-Based 10wt%Co Hard Alloy: A Study of Sintering Kinetics and Solid-Phase Processes

“…For WC alloys, the SPS method, compared to traditional sintering methods, demonstrates the smallest grain size, the highest hardness, the lowest fracture toughness [ 54 ]. The application of the SPS technology makes it possible to reduce the sintering temperatures by 200 °C, which preserves the WC grain size, uses alternative molds [ 55 ], and provides reactive synthesis [ 56 ]. Considerable experience has been accumulated in using traditional and modern methods of sintering WC-Co nanopowders produced by plasma chemical synthesis [ 57 ].…”

“…Hard alloys produced by SPS [ 60 ] and a combination of mechanochemistry and SPS [ 61 ] are being synthesized. SPS has proven to be a perfect method for consolidation of various applications [ 36 , 55 , 62 , 63 , 64 ], porosity reduction for materials where high density is a critical property [ 65 ], including hard alloys and high-temperature materials [ 66 , 67 , 68 ], and coating [ 69 , 70 , 71 ]. The issue of controlling the grain growth of ceramic materials during sintering in various media remains relevant [ 50 , 72 , 73 , 74 ].…”

Ethanol-Induced Flash Sintering of ZnO Ceramics at Room Temperature

“…With the development of current-or electric field-assisted sintering techniques, such as spark plasma sintering (SPS) and micro-wave sintering (MWS), it becomes possible to obtain ceramic materials at a faster speed and lower energy consumption [1][2][3]. Since being first reported by Raj et al [4] in 2010, flash sintering (FS) has been broadly applied to sinter many kinds of ceramics, including YSZ [5][6][7], Al 2 O 3 [8,9], BaTiO 3 [10,11], SiC [12], and ZnO [13,14].…”

Study of the Hydrolytic Stability of Fine-Grained Ceramics Based on Y2.5Nd0.5Al5O12 Oxide with a Garnet Structure under Hydrothermal Conditions

“…In the present work, the hydrolytic stability of ceramics based on Y 2.5 Nd 0.5 Al 5 O 12 (YAG/Nd) oxide with a garnet structure obtained by the spark plasma sintering (SPS) method at elevated temperatures and pressures was studied. The SPS process is based on high-rate heating of powders in vacuum or in an inert ambient by simultaneously applying a strong millisecond electric DC pulses and a constant pressure to a graphite mold containing the powder [20,[28][29][30][31][32][33][34][35][36][37]. An opportunity to reduce the sintering time drastically (as a compared to conventional sintering process) while preserving a high density of obtained material is an important advantage of SPS process, especially relevant for the radioactive materials.…”