Mechanical properties of spark plasma sintered Nb–Al compacts strengthened by dispersion of Nb2N phase and additions of Mo and W

Mechanical Behavior of Ti<SUB>3</SUB>AlC<SUB>2</SUB> Prepared by Pulse Discharge Sintering Method

“…In these synthesis methods, four reactions were used to synthesize bulk 16) is a recent innovation and its versatility allows quick densification to near theoretical density in a number of metallic, ceramic and other engineering components. 17,18) However, the knowledge concerning the synthesis of Ti 3 AlC 2 samples by PDS technique is rare. Moreover, the flexural strength of this material at high temperature was never reported in the open literature.…”

High-Temperature Friction and Wear Properties of X-BaSO<SUB>4</SUB> (X: Al<SUB>2</SUB>O<SUB>3</SUB>, NiAl) Composites Prepared by Spark Plasma Sintering

“…In our previous study, the formation of spotty Al 2 O 3 phase was also observed in Nb 3 Al, NbAl 2 , Nb 3 Si 5 Al 2 and Cr-doped Nb(Si,Al) 2 powder compacts prepared by SPS. 14,15,18,19) In addition, the grain boundaries of the BaSO 4 and BaCrO 4 powder particles remained in the specimens A and D. The relative densities of the specimens were as follows: 91.0% for specimen A, 99.1% for specimen B, 95.3% for specimen C and 90.0% for specimen D.…”

“…In the present study, X-BaSO 4 (X: Al 2 O 3 , Ni-Cr alloy and NiAl) composites were prepared by spark plasma sintering (SPS), [12][13][14][15][16][17][18][19] and their microstructure and high-temperature tribological properties were examined using a scanning electron microscope (SEM) and another type of ball-on-disk oscillation tribometer. The SPS process, which is also called pulse electric current sintering, [20][21][22][23][24] is a method used to produce dense alloy and ceramic powder compacts much more easily at a much shorter sintering time than hot pressing and hot isostatic pressing.…”

Synthesis of High-Purity Ti<SUB>3</SUB>SiC<SUB>2</SUB> through Pulse Discharge Sintering of TiH<SUB>2</SUB>/SiC/C Powder Mixture

“…15,32) Pulse discharge sintering (PDS) technique, 34) is a recent innovation and its versatility allows quick densification to nearly theoretical density in a number of metallic, ceramic and other engineering components. 35,36) In our previous work, PDS had been successfully employed to synthesize fully-dense single-phase Ti 3 SiC 2 in a short time. 5,6,25) The main purpose of the present work is to focus on the following issues: (1) the possibility of synthesizing single-phase dense Ti 3 SiC 2 with TiH 2 /SiC/C powder mixture without preliminary dehydrogenation by PDS process, (2) understanding of the mechanism of the Ti 3 SiC 2 synthesis and dehydrogenation reactions during the process, (3) comparison of the present process with that employing Ti/ SiC/C powder mixture.…”