Spark plasma synthesis from mechanically activated powders: a versatile route for producing dense nanostructured iron aluminides

2004 ◽  
Vol 50 (5) ◽  
pp. 691-696 ◽  
Author(s):  
S Paris ◽  
E Gaffet ◽  
F Bernard ◽  
Z.A Munir
Keyword(s):  
Iron Aluminides ◽  
Plasma Synthesis ◽  
Spark Plasma ◽  
Spark Plasma Synthesis

Spark Plasma Synthesis/Sintering of Dense Ceramic, Intermetallic and Composite Materials

2006 ◽  
Vol 45 ◽  
pp. 1411-1416
Author(s):  
Antonio Mario Locci ◽  
Roberta Licheri ◽  
Roberto Orrù ◽  
A. Cincotti ◽  
Giacomo Cao
Keyword(s):  
Mechanical Load ◽  
Plasma Synthesis ◽  
Simultaneous Application ◽  
Plasma Sintering ◽  
Pulsed Dc ◽  
Spark Plasma ◽  
One Step ◽  
Powder Particles ◽  
Dc Current ◽  
Spark Plasma Synthesis

Spark Plasma Sintering (SPS) represents a very attractive technique for the obtainment of dense materials including nanostructured ones. SPS basically consists in the simultaneous application of a pulsed DC current and an uniaxial mechanical load through a powder compact. Other than providing rapid Joule heating and likely enhancing mass transport through electromigration, the imposed pulsed high current is also reported to generate a plasma within the voids surrounding the powder particles, thus facilitating the removal of oxides surface layers that may hinder the sintering process. Selected results obtained through SPS in our laboratory for the preparation of a wide variety of materials, i.e. TiC-TiB2, MgB2, and NbAl3, will be presented in this work. Specifically, all the chosen examples are related to the use of the SPS technique for obtaining the desired material by simultaneously performing synthesis and consolidation stages in one-step.

Reactive Spark Plasma Synthesis of Porous Bioceramic Wollastonite

2020 ◽  
Vol 65 (2) ◽  
pp. 263-270 ◽  
Author(s):  
E. K. Papynov ◽  
O. O. Shichalin ◽  
I. Yu. Buravlev ◽  
A. S. Portnyagin ◽  
A. A. Belov ◽  
...  
Keyword(s):  
Plasma Synthesis ◽  
Porous Bioceramic ◽  
Spark Plasma ◽  
Spark Plasma Synthesis

Effect of ball milling on simultaneous spark plasma synthesis and densification of TiC–TiB2 composites

2006 ◽  
Vol 434 (1-2) ◽  
pp. 23-29 ◽  
Author(s):  
Antonio M. Locci ◽  
Roberto Orrù ◽  
Giacomo Cao ◽  
Zuhair A. Munir
Keyword(s):  
Ball Milling ◽  
Plasma Synthesis ◽  
Spark Plasma ◽  
Spark Plasma Synthesis

scholarly journals Synthesis of dense nanometric MoSi2 through mechanical and field activation

2001 ◽  
Vol 16 (5) ◽  
pp. 1439-1448 ◽  
Author(s):  
R. Orrù ◽  
J. Woolman ◽  
G. Cao ◽  
Z. A. Munir
Keyword(s):  
Crystallite Size ◽  
Electric Current ◽  
Ball Mill ◽  
Planetary Ball Mill ◽  
Plasma Synthesis ◽  
Product Phase ◽  
Spark Plasma ◽  
Spark Plasma Synthesis ◽  
Nanometric Size ◽  
Milled Powders

The effect of mechanical and field activation on the synthesis of dense nanometric MoSi2 was investigated. Powders of Mo and Si, milled separately or comilled in a planetary ball mill, were reacted in a spark plasma synthesis (SPS) apparatus under different electric current conditions. Milled powders reacted faster and required less current than unmilled powders. Mixtures of powders which were milled separately (to nanometric size) reacted in the SPS to produce micrometric α–MoSi2. Similar results were obtained for samples comilled to produce nanometric reactants which did not contain detectable amounts of the product phase. When products form during milling, they contain both the α and β modifications of MoSi2. The product after the SPS reaction was nanometric MoSi2 with a crystallite size of 140 nm.

scholarly journals Reactive spark plasma synthesis of CaZrTi2O7 zirconolite ceramics for plutonium disposition

2018 ◽  
Vol 500 ◽  
pp. 11-14 ◽  
Author(s):  
Shi-Kuan Sun ◽  
Martin C. Stennett ◽  
Claire L. Corkhill ◽  
Neil C. Hyatt
Keyword(s):  
Plasma Synthesis ◽  
Spark Plasma ◽  
Spark Plasma Synthesis

Diffusion-Controlled Formation of Ti2O3 during Spark-Plasma Synthesis

2013 ◽  
Vol 52 (8) ◽  
pp. 4458-4463 ◽  
Author(s):  
I. Veremchuk ◽  
I. Antonyshyn ◽  
C. Candolfi ◽  
X. Feng ◽  
U. Burkhardt ◽  
...  
Keyword(s):  
Plasma Synthesis ◽  
Diffusion Controlled ◽  
Spark Plasma ◽  
Spark Plasma Synthesis
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