Band gap tuning of oxygen vacancy-induced Al2O3-TiO2 ceramics processed by spark plasma sintering

2021 ◽  
Author(s):  
Mahdi Hajihashemi ◽  
Morteza Shamanian ◽  
Fakhreddin Ashrafizadeh
Keyword(s):  
Oxygen Vacancy ◽  
Band Gap ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Band Gap Tuning

Tailoring band gap and thermal diffusivity of nanostructured phase-pure ZnAl 2 O 4 by direct spark plasma sintering synthesis

2017 ◽  
Vol 256 ◽  
pp. 45-52 ◽  
Author(s):  
Sanna Sommer ◽  
Espen Drath Bøjesen ◽  
Anders Bank Blichfeld ◽  
Bo Brummerstedt Iversen
Keyword(s):  
Thermal Diffusivity ◽  
Band Gap ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Phase Pure ◽  
Spark Plasma

Transparent nanocrystalline MgO by rapid and low-temperature spark plasma sintering

2004 ◽  
Vol 19 (9) ◽  
pp. 2527-2531 ◽  
Author(s):  
Rachman Chaim ◽  
Zhijian Shen ◽  
Mats Nygren
Keyword(s):  
Grain Size ◽  
Low Temperature ◽  
Oxygen Vacancy ◽  
Spark Plasma Sintering ◽  
Color Centers ◽  
Reducing Atmosphere ◽  
Plasma Sintering ◽  
Average Grain Size ◽  
Spark Plasma ◽  
Nanocrystalline Mgo

We investigated superfast densification of nanocrystalline MgO powders by spark plasma sintering (SPS) between 700 °C and 825 °C under applied pressures of 100and 150 MPa. Fully-dense transparent nanocrystalline MgO with a 52-nm average grain size was fabricated at 800 °C and 150 MPa for 5 min. In-line transmissionsof 40% and 60% were measured compared to MgO single crystal, for the yellowand red wavelengths, respectively. Densification occurs by particles sliding over each other; the nanometric grain size and pores lead to the optical transparency. The light brownish color of the nanocrystalline MgO is due to the oxygen vacancy color centers, originating from the reducing atmosphere of the SPS process.

Spark Plasma Sintering Treatment for Introduction of Oxygen Vacancy in Pt Dispersed SrTiO 3 for Increasing Photocatalytic Water Splitting Activity

ChemCatChem ◽  
2019 ◽  
Vol 11 (24) ◽  
pp. 6270-6274 ◽  
Author(s):  
Yoonyoung Kim ◽  
Motonori Watanabe ◽  
Atsushi Takagaki ◽  
Junko Matsuda ◽  
Tatsumi Ishihara
Keyword(s):  
Oxygen Vacancy ◽  
Water Splitting ◽  
Spark Plasma Sintering ◽  
Photocatalytic Water Splitting ◽  
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

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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