Innovative multi-stage spark plasma sintering to obtain strong and tough ultrafine-grained ceramics

2010 ◽  
Vol 62 (7) ◽  
pp. 435-438 ◽  
Author(s):  
K. Madhav Reddy ◽  
Nitish Kumar ◽  
Bikramjit Basu
Keyword(s):  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Multi Stage ◽  
Ultrafine Grained ◽  
Spark Plasma

Spark plasma sintering for high-speed diffusion bonding of the ultrafine-grained near-α Ti–5Al–2V alloy with high strength and corrosion resistance for nuclear engineering

2019 ◽  
Vol 54 (24) ◽  
pp. 14926-14949 ◽  
Author(s):  
Vladimir Nikolaevich Chuvil’deev ◽  
Aleksey Vladimirovich Nokhrin ◽  
Vladimir Ilyich Kopylov ◽  
Maksim Sergeevich Boldin ◽  
Mikhail Mikhaylovich Vostokov ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Spark Plasma Sintering ◽  
Diffusion Bonding ◽  
High Speed ◽  
High Strength ◽  
Nuclear Engineering ◽  
Plasma Sintering ◽  
Ultrafine Grained ◽  
Spark Plasma

Properties of Ultrafine-Grained Tungsten Prepared by Ball Milling and Spark Plasma Sintering

2016 ◽  
Vol 821 ◽  
pp. 399-404 ◽  
Author(s):  
Monika Vilémová ◽  
Barbara Nevrlá ◽  
Zdenek Pala ◽  
Lenka Kocmanová ◽  
Marek Janata ◽  
...  
Keyword(s):  
Ball Milling ◽  
Spark Plasma Sintering ◽  
Ball Mill ◽  
Planetary Ball Mill ◽  
Coarse Grained ◽  
First Wall ◽  
Fine Grained ◽  
Plasma Sintering ◽  
Ultrafine Grained ◽  
Spark Plasma

Tungsten is currently considered as the most suitable plasma facing material for the first wall of a nuclear fusion reactor. First wall will be subjected to harsh conditions that will gradually deteriorate properties of the wall material. Some studies point out that fine-grained tungsten could be more resistant to the structure and property changes than coarse-grained tungsten. However, tailoring of tungsten microstructure is very laborious. Due to its high melting point, tungsten is very often processed mechanically and subsequently sintered into a compact body. In this study, preparation of ultrafine-grained tungsten by mechanical processing in a planetary ball mill was examined. Three types of tungsten samples were compared. One was made from coarse grained tungsten powder consolidated by SPS (spark plasma sintering). Other two samples were prepared from the powder processed in a planetary ball mill with and without addition of Y2O3. After ball milling, the powders were consolidated by SPS, i.e. fast sintering process that allows preserving fine-grained structure of the powder material. Properties of the samples such as hardness and thermal conductivity were examined and correlated with the processing history and microstructure.

Sliding-wear resistance of ultrafine-grained SiC densified by spark plasma sintering with 3Y2O3+5Al2O3 or Y3Al5O12 additives

2013 ◽  
Vol 69 (8) ◽  
pp. 598-601 ◽  
Author(s):  
Esther Ciudad ◽  
Estíbaliz Sánchez-González ◽  
Oscar Borrero-López ◽  
Fernando Guiberteau ◽  
Mats Nygren ◽  
...  
Keyword(s):  
Wear Resistance ◽  
Spark Plasma Sintering ◽  
Sliding Wear ◽  
Plasma Sintering ◽  
Ultrafine Grained ◽  
Spark Plasma

Multi-stage spark plasma sintering to study the densification mechanisms of boron carbide

2020 ◽  
Vol 93 ◽  
pp. 105351 ◽  
Author(s):  
Yingjie Zhang ◽  
Mei Zhang ◽  
Zhihui Zhou ◽  
Minbo Wang ◽  
Siyao Xie ◽  
...  
Keyword(s):  
Boron Carbide ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Multi Stage ◽  
Spark Plasma
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