Effective Atomic Diffusion Coefficient Dependence on Applied Pressure During Spark Plasma Sintering

2018 ◽  
Author(s):  
Xinxin Li ◽  
Chao Yang ◽  
Tao Chen ◽  
Zhiqiang Fu ◽  
Yuanyuan Li ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Spark Plasma Sintering ◽  
Applied Pressure ◽  
Atomic Diffusion ◽  
Plasma Sintering ◽  
Spark Plasma

Effective atomic diffusion coefficient dependence on applied pressure during spark plasma sintering

Materialia ◽  
2019 ◽  
Vol 6 ◽  
pp. 100334 ◽  
Author(s):  
X.X. Li ◽  
C. Yang ◽  
T. Chen ◽  
Z.Q. Fu ◽  
Y.Y. Li ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Spark Plasma Sintering ◽  
Applied Pressure ◽  
Atomic Diffusion ◽  
Plasma Sintering ◽  
Spark Plasma

Effects of Applied Pressure on the Atomic Diffusion Coefficient During Spark Plasma Sintering of Crystalline Powders

JOM ◽  
2019 ◽  
Vol 71 (8) ◽  
pp. 2475-2483
Author(s):  
Xinxin Li ◽  
Chao Yang ◽  
Zhao Liu ◽  
Liming Zou ◽  
Zhi Wang ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Spark Plasma Sintering ◽  
Applied Pressure ◽  
Atomic Diffusion ◽  
Plasma Sintering ◽  
Spark Plasma

Determination of atomic diffusion coefficient via isochronal spark plasma sintering

2018 ◽  
Vol 151 ◽  
pp. 47-52 ◽  
Author(s):  
X.X. Li ◽  
C. Yang ◽  
T. Chen ◽  
Z.Q. Fu ◽  
Y.Y. Li ◽  
...  
Keyword(s):  
Diffusion Coefficient ◽  
Spark Plasma Sintering ◽  
Atomic Diffusion ◽  
Plasma Sintering ◽  
Spark Plasma

Microstructure and Mechanical Properties of Spark-Plasma-Sintered SiC-TiC Composites

2005 ◽  
Vol 287 ◽  
pp. 335-339 ◽  
Author(s):  
Kyeong Sik Cho ◽  
Kwang Soon Lee
Keyword(s):  
Mechanical Properties ◽  
Fracture Toughness ◽  
Heating Rate ◽  
Spark Plasma Sintering ◽  
Sintering Temperature ◽  
Applied Pressure ◽  
Argon Atmosphere ◽  
Full Density ◽  
Plasma Sintering ◽  
Spark Plasma

Rapid densification of the SiC-10, 20, 30, 40wt% TiC powder with Al, B and C additives was carried out by spark plasma sintering (SPS). In the present SPS process, the heating rate and applied pressure were kept at 100°C/min and at 40 MPa, while the sintering temperature varied from 1600-1800°C in an argon atmosphere. The full density of SiC-TiC composites was achieved at a temperature above 1800°C by spark plasma sintering. The 3C phase of SiC in the composites was transformed to 6H and 4H by increasing the process temperature and the TiC content. By tailoring the microstructure of the spark-plasma-sintered SiC-TiC composites, their toughness could be maintained without a notable reduction in strength. The strength of 720 MPa and the fracture toughness of 6.3 MPa·m1/2 were obtained in the SiC-40wt% TiC composite prepared at 1800°C for 20 min.

scholarly journals Ultrafast Atomic Diffusion Paths in Fine-Grained Nickel Obtained by Spark Plasma Sintering

2020 ◽  
Vol 51 (7) ◽  
pp. 3425-3434
Author(s):  
Lucía García de la Cruz ◽  
Bernadette Domenges ◽  
Sergiy V. Divinski ◽  
Gerhard Wilde ◽  
Eric Hug
Keyword(s):  
Spark Plasma Sintering ◽  
Atomic Diffusion ◽  
Fine Grained ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Diffusion Paths

scholarly journals Development of Graphene Reinforced Metal Matrix Composite by Spark Plasma Sintering

2018 ◽  
Vol 7 (3.32) ◽  
pp. 76
Author(s):  
Fei Gao ◽  
Yongbum Choi ◽  
Yosuke Dobashi ◽  
Kazuhiro Matsugi
Keyword(s):  
Mechanical Properties ◽  
Thermal Conductivity ◽  
Spark Plasma Sintering ◽  
High Performance ◽  
Volume Fraction ◽  
Applied Pressure ◽  
Ceramic Particle ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Dispersed Aluminum

In order to obtain the high performance materials with high thermal conductivity, high　electrical conductivity, low thermal expansion, good mechanical properties and low density, Graphene has higher thermal conductivity comparison with other ceramic particle. In this study, graphene dispersed aluminum (Al) composites was developed by spark plasma sintering. Volume fraction of graphene were 10, 20 and 30 vol.%. Fabrication conditions of graphene dispersed aluminum (Al) composites were temperature of 813K and applied pressure of 80 MPa. As composite properties are affected by the dispersibility and volume fraction of the graphene particles, the relationship among the dispersibility of dispersant and the thermal conductivity and mechanical properties was investigated.  

Enhanced atomic diffusion of Fe–Al diffusion couple during spark plasma sintering

2016 ◽  
Vol 110 ◽  
pp. 105-108 ◽  
Author(s):  
Ruidi Li ◽  
Tiechui Yuan ◽  
Xiaojun Liu ◽  
Kechao Zhou
Keyword(s):  
Diffusion Couple ◽  
Spark Plasma Sintering ◽  
Atomic Diffusion ◽  
Plasma Sintering ◽  
Spark Plasma

Structures and magnetic properties of Nd–Fe–B bulk nanocomposite magnets produced by the spark plasma sintering method

2004 ◽  
Vol 19 (9) ◽  
pp. 2730-2737 ◽  
Author(s):  
Tetsuji Saito ◽  
Tomonari Takeuchi ◽  
Hiroyuki Kageyama
Keyword(s):  
Magnetic Properties ◽  
Spark Plasma Sintering ◽  
Applied Pressure ◽  
High Coercivity ◽  
Bulk Materials ◽  
Soft Magnetic ◽  
Nanocomposite Magnets ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Sintering Method

We studied the effects of the sintering temperature and applied pressure on Nd–Fe–B bulk nanocomposite magnets produced by the spark plasma sintering (SPS) method. Amorphous Nd4Fe77.5B18.5 melt-spun ribbons were successfully consolidated into bulk form by the SPS method. When sintered at 873 K under applied pressures between 30 and 70 MPa, the bulk materials consisted of nanocomposite materials with a soft magnetic Fe3B phase and hard magnetic Nd2Fe14B phase. The density and magnetic properties of the bulk materials sintered at 873 K were strongly dependent on the applied pressure during sintering. Bulk Nd4Fe77.5B18.5 nanocomposite magnets sintered at 873 K under an applied pressure of 70 MPa showed a high remanence of 9.3 kG with a high coercivity of 2.5 kOe.

Fabrication of YSZ-Carbon Felt Composite Materials by Spark Plasma Sintering Process

2021 ◽  
Vol 904 ◽  
pp. 339-343
Author(s):  
Aunsaya Eksatit ◽  
Kento Ishii ◽  
Masako Uematsu ◽  
Li Hong Liu ◽  
Tetsuo Uchikoshi
Keyword(s):  
Spark Plasma Sintering ◽  
Aqueous Suspension ◽  
Applied Pressure ◽  
Carbon Felt ◽  
Conducting Phase ◽  
Oxide Ion Conductor ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Ion Conducting ◽  
Oxide Ion

Dual-phase membrane composed of oxide ion conductor and electron conductor was fabricated for application to oxygen separation membranes. 8 mol% yttria-stabilized zirconia (8YSZ) and carbon felt were used for the oxide ion conducting phase and the electron conductiing phase, respectively. Carbon felt was impregnated with YSZ aqueous suspension (40 wt%), dried, then sintered by a spark plasma sintering (SPS) process under the applied pressure of 80 MPa at 1200, 1400 and 1600 ° C for 10 min. When sintered at 1600 ° C, the XRD pattern showed small peaks indicating the formation of the zirconium carbide phase, but the microstructure observed by SEM showed that the YSZ was well densified and tightly bonded with carbon felt. This method has been demonstrated to be an effective process for the fabrication of YSZ-Carbon composites with both phases percolation structure.

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