Spark Plasma Sintering of Fine-Grain Ceramic–Metal Composites Based on Garnet-Structure Oxide Y2.5Nd0.5Al5O12 with Mo, W, and Ni

2019 ◽  
pp. 459-470
Author(s):  
L. S. Golovkina ◽  
A. I. Orlova ◽  
А. V. Nokhrin ◽  
M. S. Boldin ◽  
E. A. Lantsev ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Garnet Structure ◽  
Metal Composites ◽  
Fine Grain ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Effect of Nano-Y2O3 Addition on Microstructure and Tensile Properties of High-Nb TiAl Alloy Prepared by Spark Plasma Sintering

Metals ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1048
Author(s):  
Yingchao Guo ◽  
Yongfeng Liang ◽  
Junpin Lin ◽  
Fei Yang
Keyword(s):  
Tensile Strength ◽  
Spark Plasma Sintering ◽  
Tial Alloy ◽  
Second Phase ◽  
Fine Grain ◽  
Fine Grain Strengthening ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Y2o3 Addition ◽  
Powder Metallurgy Route

Nano-Y2O3 reinforced Ti-47.7Al-7.1Nb-(V, Cr) alloy was fabricated by a powder metallurgy route using spark plasma sintering (SPS), and the influence of nano-Y2O3 contents on the microstructure and mechanical properties were investigated systematically. The results revealed that the ultimate tensile strength and elongation of the alloy were 570 ± 28 MPa and 1.7 ± 0.6% at 800 °C, 460 ± 23 MPa and 6.1 ± 0.4% at 900 °C with no nano-Y2O3, 662 ± 24 MPa and 5.5 ± 0.5% at 800 °C, and 466 ± 25 MPa and 16.5 ± 0.8% at 900 °C with 0.05 at% nano-Y2O3 addition, respectively. Due to the fine-grain strengthening and the second-phase strengthening, both tensile strength and elongation of the high-Nb TiAl alloy were enhanced with the addition of nano-Y2O3.

Mechanical and magnetic properties of semi-Heusler/light-metal composites consolidated by spark plasma sintering

2017 ◽  
Vol 126 ◽  
pp. 351-357 ◽  
Author(s):  
Martin Koller ◽  
Tomáš Chráska ◽  
Jakub Cinert ◽  
Oleg Heczko ◽  
Jaromír Kopeček ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Spark Plasma Sintering ◽  
Light Metal ◽  
Metal Composites ◽  
Plasma Sintering ◽  
Spark Plasma

High Hardness BaCb-(BxOy/BN) Composites with 3D Mesh-Like Fine Grain-Boundary Structure by Reactive Spark Plasma Sintering

2012 ◽  
Vol 12 (2) ◽  
pp. 959-965 ◽  
Author(s):  
Oleg Vasylkiv ◽  
Hanna Borodianska ◽  
Petre Badica ◽  
Salvatore Grasso ◽  
Yoshio Sakka ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Spark Plasma Sintering ◽  
High Hardness ◽  
Boundary Structure ◽  
3D Mesh ◽  
Fine Grain ◽  
Grain Boundary Structure ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Structural characterization of semi-heusler/light metal composites prepared by spark plasma sintering

2018 ◽  
Vol 8 (1) ◽  
Author(s):  
Jaromír Kopeček ◽  
Kristína Bartha ◽  
Radek Mušálek ◽  
Zdeněk Pala ◽  
Tomáš Chráska ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Structural Characterization ◽  
Light Metal ◽  
Metal Composites ◽  
Plasma Sintering ◽  
Spark Plasma

Fabrication of Dense Nanostructured Bulk Ceramics by Means of Spark-Plasma-Sintering (SPS) Processing

2016 ◽  
Vol 838-839 ◽  
pp. 225-230 ◽  
Author(s):  
Koji Morita ◽  
Byung Nam Kim ◽  
Hidehiro Yoshida ◽  
Keijiro Hiraga ◽  
Yoshio Sakka
Keyword(s):  
Heating Rate ◽  
Spark Plasma Sintering ◽  
Sintering Temperature ◽  
High Heating Rate ◽  
Fine Grained ◽  
Fine Grain ◽  
Plasma Sintering ◽  
High Heating ◽  
Spark Plasma ◽  
Primary Advantage

In order to fabricate fine-grained and dense nanoceramic materials, the effect of spark-plasma-sintering (SPS) conditions was examined in MgAl2O4 spinel as a reference material. The SPS conditions, such as heating rate and loading temperature, strongly affected the microstructures. Although the density can be improved with decreasing the heating rate to less than 10 °C/min, it requires a long processing time. In order to fully utilize the high heating rate that is a primary advantage of the SPS technique, load controlling is very effective to achieve high density with maintaining fine grain size. An increase in the loading temperature during SPS processing can reduce the residual porosity in a spinel even at the widely used high heating rate of 100 °C/min. This suggests that for the SPS processing in ceramics, the load controlling is an important factor as well as the heating rate and sintering temperature.

Spark Plasma Sintering of Diamond- and Nanodiamond-Metal Composites

2019 ◽  
pp. 441-457 ◽  
Author(s):  
Dina V. Dudina ◽  
Boris B. Bokhonov ◽  
Arina V. Ukhina ◽  
Vyacheslav I. Mali ◽  
Alexander G. Anisimov
Keyword(s):  
Spark Plasma Sintering ◽  
Metal Composites ◽  
Plasma Sintering ◽  
Spark Plasma
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