scholarly journals On the Role of the Electrical Field in Spark Plasma Sintering of UO2+x

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Vaclav Tyrpekl ◽  
Mohamed Naji ◽  
Michael Holzhäuser ◽  
Daniel Freis ◽  
Damien Prieur ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Electrical Field ◽  
Plasma Sintering ◽  
Spark Plasma

Effect of Zr and C co-addition on the characteristics of ZrB2-based ceramics: Role of spark plasma sintering temperature

2020 ◽  
Vol 46 (16) ◽  
pp. 24975-24985 ◽  
Author(s):  
Behzad Nayebi ◽  
Nader Parvin ◽  
Jamshid Aghazadeh Mohandesi ◽  
Mehdi Shahedi Asl
Keyword(s):  
Spark Plasma Sintering ◽  
Sintering Temperature ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Co Addition

Enhanced electrical properties of ZnO varistor ceramics by spark plasma sintering: Role of annealing

2020 ◽  
Vol 46 (10) ◽  
pp. 15076-15083 ◽  
Author(s):  
Jie Liang ◽  
Xuetong Zhao ◽  
Jianjie Sun ◽  
Lulu Ren ◽  
Ruijin Liao ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Spark Plasma Sintering ◽  
Zno Varistor ◽  
Plasma Sintering ◽  
Spark Plasma

Enhanced electrical properties of CaCu3Ti4O12 ceramics by spark plasma sintering: Role of Zn and Al co-doping

2019 ◽  
Vol 792 ◽  
pp. 1079-1087 ◽  
Author(s):  
Chao Xu ◽  
Xuetong Zhao ◽  
Lulu Ren ◽  
Jianjie Sun ◽  
Lijun Yang ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Spark Plasma Sintering ◽  
Co Doping ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Role Of Zn

Role of impurities on the spark plasma sintering of ZrCx–ZrB2 composites

2008 ◽  
Vol 28 (3) ◽  
pp. 671-678 ◽  
Author(s):  
F. Goutier ◽  
G. Trolliard ◽  
S. Valette ◽  
A. Maître ◽  
C. Estournes
Keyword(s):  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Fabrication of Cu-Based SiC Composites by Spark Plasma Sintering of Cu-Nitrate Coated SiC Powders

2017 ◽  
Vol 62 (2) ◽  
pp. 1407-1410
Author(s):  
Y.-K. Jeong ◽  
Y.S. Kim ◽  
S.-T. Oh
Keyword(s):  
Spark Plasma Sintering ◽  
Powder Mixture ◽  
Powder Processing ◽  
Sem Analysis ◽  
Homogeneous Microstructure ◽  
Dense Microstructure ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Sic Composites

AbstractAn optimum route to fabricate the Cu-based SiC composites with homogeneous microstructure was investigated. Three methods for developing the densified composites with sound interface between Cu and SiC were compared on the basis of the resulting microstructures. Starting with three powder mixtures of elemental Cu and SiC, elemental Cu and PCS coated SiC or PCS and Cunitrate coated SiC was used to obtain Cu-based SiC composites. SEM analysis revealed that the composite fabricated by spark plasma sintering using elemental SiC and Cu powder mixture showed inhomogeneous microstructure. Conversely, dense microstructure with sound interface was observed in the sintered composites using powder mixture of pre-coated PCS and Cu-nitrate onto SiC. The relationship between powder processing and microstructure was discussed based on the role of coating layer for the wettability

scholarly journals Spray freeze granulation of submicron alumina and its sintering behavior via spark plasma sintering

2015 ◽  
Vol 47 (3) ◽  
pp. 279-288 ◽  
Author(s):  
Wei Liu ◽  
Zhipeng Xie
Keyword(s):  
Spark Plasma Sintering ◽  
Particle Packing ◽  
Industrial Scale ◽  
Sintering Behavior ◽  
Scale Production ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Spray Granulation ◽  
Industrial Scale Production

Spray freeze granulation is an improved method based on spray granulation, solving many limitations of spray granulation. In this work, spray freeze granulation of submicron alumina is performed to explore the possibility of industrial-scale production of dense alumina via spark plasma sintering. Powder pretreatment such as sedimentation and the selection of granules with the appropriate size are employed for the maximum use of the high qualified as-prepared granules and granule sliding, which would provide a guidance for the industrial-scale production. Debound granules were densified via SPS and the corresponding sintering behaviors such as the recorded shrinkage and shrinkage rate were discussed. The comparison of sintering behaviors between granulated and as-received powder are conducted to identify the role of spray freeze granulation in sinterability for dense alumina. The Vickers hardness (Hv) and the fracture toughness (KIC) of the freeze granulated body are higher than the corresponding properties of the as-received body due to the more homogenous microstructure with little agglomeration in the particle packing after freeze granulation.

The crucial role of selenium for sulphur substitution in the structural transitions and thermoelectric properties of Cu5FeS4 bornite

2017 ◽  
Vol 46 (7) ◽  
pp. 2174-2183 ◽  
Author(s):  
V. Pavan Kumar ◽  
T. Barbier ◽  
P. Lemoine ◽  
B. Raveau ◽  
V. Nassif ◽  
...  
Keyword(s):  
Mechanical Alloying ◽  
Spark Plasma Sintering ◽  
Thermoelectric Properties ◽  
Crucial Role ◽  
Structural Transitions ◽  
Plasma Sintering ◽  
Spark Plasma

Bornite Cu5FeS4−xSex (0 ≤ x ≤ 0.6) compounds have been synthesized, using mechanical alloying, combined with spark plasma sintering (SPS).

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