Spark plasma sintering of ultra refractory compounds

2008 ◽  
Vol 43 (19) ◽  
pp. 6414-6421 ◽  
Author(s):  
Diletta Sciti ◽  
Mats Nygren
Keyword(s):  
Spark Plasma Sintering ◽  
Refractory Compounds ◽  
Plasma Sintering ◽  
Spark Plasma

Production of Products of Various Shapes From Si3N4-Based Refractory Compounds by Spark Plasma Sintering

2015 ◽  
Vol 54 (1-2) ◽  
pp. 8-15 ◽  
Author(s):  
M. V. Zamula ◽  
A. V. Derevyanko ◽  
V. G. Kolesnichenko ◽  
O. B. Zgalat-Lozinskii ◽  
A. V. Ragulya
Keyword(s):  
Spark Plasma Sintering ◽  
Refractory Compounds ◽  
Plasma Sintering ◽  
Spark Plasma

scholarly journals Ultrahigh Temperature Flash Sintering of Binder-Less Tungsten Carbide within 6 s

Materials ◽  
2021 ◽  
Vol 14 (24) ◽  
pp. 7655
Author(s):  
Huaijiu Deng ◽  
Mattia Biesuz ◽  
Monika Vilémová ◽  
Milad Kermani ◽  
Jakub Veverka ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Energy Efficient ◽  
Rapid Change ◽  
Thermal Inertia ◽  
Refractory Compounds ◽  
Flash Sintering ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Ultrahigh Temperature ◽  
Discharge Profile

We report on an ultrarapid (6 s) consolidation of binder-less WC using a novel Ultrahigh temperature Flash Sintering (UFS) approach. The UFS technique bridges the gap between electric resistance sintering (≪1 s) and flash spark plasma sintering (20–60 s). Compared to the well-established spark plasma sintering, the proposed approach results in improved energy efficiency with massive energy and time savings while maintaining a comparable relative density (94.6%) and Vickers hardness of 2124 HV. The novelty of this work relies on (i) multiple steps current discharge profile to suit the rapid change of electrical conductivity experienced by the sintering powder, (ii) upgraded low thermal inertia CFC dies and (iii) ultra-high consolidation temperature approaching 2750 °C. Compared to SPS process, the UFS process is highly energy efficient (≈200 times faster and it consumes ≈95% less energy) and it holds the promise of energy efficient and ultrafast consolidation of several conductive refractory compounds.

Synthesis and Spark Plasma Sintering of Nanosized Refractory Carbide/Nitride Powders

2020 ◽  
Vol 850 ◽  
pp. 279-284
Author(s):  
Ilmārs Zālīte ◽  
Anita Letlena ◽  
Ints Šteins ◽  
Aija Krūmiņa ◽  
Māra Lubāne ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Carbothermal Reduction ◽  
Sol Gel ◽  
Reduction Process ◽  
Ceramic Materials ◽  
Refractory Carbide ◽  
Plasma Chemical ◽  
Refractory Compounds ◽  
Plasma Sintering ◽  
Spark Plasma

In the present study, seven refractory compounds - TiC, NbC, TaC, WC, Ti (C,N), (Ti,Nb)(C,N) and TiN - have been produced by plasma-chemical synthesis and carbothermal reduction process of a precursor prepared by sol-gel method. The phase composition, crystallite size, morphology and specific surface area of the synthesized powders are investigated by XRD, TEM, SEM and BET respectively. Spark plasma sintering (SPS) method (up to 1850 °C, heating rate of 100 °C/min and dwelling time of 5 min.) are used for investigation of compacting of these compounds. Characteristics of the obtained ceramic materials are provided.

Fabrication and Mechanical Properties of ultra fine WC-6wt.%Co by Spark Plasma Sintering Process

2011 ◽  
Vol 49 (01) ◽  
pp. 40-45 ◽  
Author(s):  
Hyun-Kuk Park ◽  
Seung-Min Lee ◽  
Hee-Jun Youn ◽  
Ki-Sang Bang ◽  
Ik-Hyun Oh
Keyword(s):  
Mechanical Properties ◽  
Spark Plasma Sintering ◽  
Sintering Process ◽  
Plasma Sintering ◽  
Spark Plasma

Effect of spark plasma sintering temperature on structure and phase composition of Ti-Al-Nb-based alloys

2017 ◽  
Vol 59 (11-12) ◽  
pp. 1033-1036 ◽  
Author(s):  
Sherzod Kurbanbekov ◽  
Mazhyn Skakov ◽  
Viktor Baklanov ◽  
Batyrzhan Karakozov
Keyword(s):  
Phase Composition ◽  
Spark Plasma Sintering ◽  
Sintering Temperature ◽  
Plasma Sintering ◽  
Spark Plasma

Fabrication of TiB2/TiC Composites by Spark Plasma Sintering

2012 ◽  
Vol 27 (9) ◽  
pp. 961-964 ◽  
Author(s):  
Zhi-Qiang MA ◽  
Ying-Hu JI ◽  
Lian-Jun WANG
Keyword(s):  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma
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