scholarly journals Tailoring the Composition of Eu3+-Doped Y3NbO7 Niobate: Structural Features and Luminescent Properties Induced by Spark Plasma Sintering

2017 ◽  
Vol 56 (8) ◽  
pp. 4495-4503 ◽  
Author(s):  
Ka-Young Kim ◽  
U-Chan Chung ◽  
Brice Mutulet ◽  
François Weill ◽  
Alain Demourgues ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Luminescent Properties ◽  
Structural Features ◽  
Plasma Sintering ◽  
Spark Plasma

Microstructural Characterization of Fine-Grained Pb(Zr0.52Ti0.48)O3 Ceramics Fabricated by a Spark Plasma Sintering

2006 ◽  
Vol 317-318 ◽  
pp. 155-158
Author(s):  
Sang Mo Koo ◽  
Seung Hwan Shim ◽  
Jong Won Yoon ◽  
Kwang Bo Shim
Keyword(s):  
Spark Plasma Sintering ◽  
Microstructural Characterization ◽  
Structural Features ◽  
Fine Grained ◽  
Domain Structures ◽  
Plasma Sintering ◽  
Transmission Electron ◽  
Fine Microstructure ◽  
Spark Plasma

The dense Pb(Zr0.52Ti0.48)O3 (PZT) piezoelectric ceramics have been prepared at a low temperature by a spark plasma sintering (SPS) method without excess PbO addition and their structural features including domains were systematically investigated. The fine microstructure consisting of submicrometer-sized grains as well as relative density reaching 99% was achieved by sintering at 950°C which is 400°C lower than that of pressureless sintering (PLS). Transmission electron microscopy (TEM) results confirmed that the sintered specimen contained very dense domain structures inside each grain, showing the nanoscaled single-domains even at the small grains (below 100 nm). The SPS-processed PZT exhibited better piezoelectric properties than those of the PLS-processed one, which is attributed to its fine-microstructural feature.

Fabrication and Luminescent Properties of Translucent Ce3+:Lu2SiO5 Ceramics by Spark Plasma Sintering

2011 ◽  
Vol 295-297 ◽  
pp. 1300-1304 ◽  
Author(s):  
Ting Lin ◽  
Ling Cong Fan ◽  
Zhi Bin Xu ◽  
Ying Shi ◽  
Jian Jun Xie ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
High Performance ◽  
Sol Gel ◽  
Radiation Detection ◽  
Luminescent Properties ◽  
Annealed Sample ◽  
Plasma Sintering ◽  
Polycrystalline Ceramics ◽  
Spark Plasma ◽  
Gel Processing

The spark plasma sintering (SPS) technique was employed to investigate the fabrication of cerium-doped lutetium orthosilicate (Ce:Lu2SiO5, LSO) polycrystalline scintillation ceramics starting from nanosized Ce:LSO powders synthesized by sol-gel processing. Fully-densed polycrystalline Ce:LSO ceramics with fine grains were fabricated on optimal sintering conditions of 1350°C for 5 min under pressure of 50 MPa. Translucent monolithic Ce:LSO ceramic sample was obtained with excellent luminescent characteristics after being annealed in air at 1000°C for 15 hrs. Under 360 nm UV excitation, a broad emission peak centered at 425 nm was detected for Ce:LSO ceramic, with a short decay time of only 9.67 ns. The luminescence intensity of annealed sample(doped by 0.5mol% Ce3+) is 3 times greater than that of BGO crystal under X-ray excitation. The good luminescent characteristics make Ce:LSO polycrystalline ceramics a promising scintillator candidate with high performance for radiation detection in future.

Luminescent properties of MgAl2O4 ceramics doped with rare earth ions fabricated by spark plasma sintering technique

2018 ◽  
Vol 44 (17) ◽  
pp. 20768-20773 ◽  
Author(s):  
D. Valiev ◽  
O. Khasanov ◽  
E. Dvilis ◽  
S. Stepanov ◽  
E. Polisadova ◽  
...  
Keyword(s):  
Rare Earth ◽  
Spark Plasma Sintering ◽  
Luminescent Properties ◽  
Rare Earth Ions ◽  
Plasma Sintering ◽  
Spark Plasma

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
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