scholarly journals Defects and microstructure of highly conducting Al-doped ZnO ceramics obtained via spark plasma sintering

2020 ◽  
Vol 40 (15) ◽  
pp. 5529-5534 ◽  
Author(s):  
Haoxian Chen ◽  
Qianying Sun ◽  
Tian Tian ◽  
Liaoying Zheng ◽  
Maud Barré ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Doped Zno ◽  
Zno Ceramics

scholarly journals Improvement in the thermoelectric properties of porous networked Al-doped ZnO nanostructured materials synthesized via an alternative interfacial reaction and low-pressure SPS processing

2020 ◽  
Vol 7 (21) ◽  
pp. 4118-4132
Author(s):  
Raymond V. Rivera Virtudazo ◽  
Bhuvanesh Srinivasan ◽  
Quansheng Guo ◽  
Rudder Wu ◽  
Toshiaki Takei ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Nanostructured Materials ◽  
Interfacial Reaction ◽  
Thermoelectric Properties ◽  
High Performance ◽  
Low Pressure ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Doped Zno ◽  
Zno Ceramics

This work presents a novel, simpler and faster bottom-up approach to produce relatively high performance thermoelectric Al-doped ZnO ceramics from nanopowders produced by interfacial reaction followed by consolidation with Spark Plasma Sintering.

scholarly journals Fabrication of ZnO Ceramics with Defects by Spark Plasma Sintering Method and Investigations of Their Photoelectrochemical Properties

Nanomaterials ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 2506
Author(s):  
Liren Zheng ◽  
Mu Liu ◽  
Haipeng Zhang ◽  
Zhaoke Zheng ◽  
Zeyan Wang ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Oxygen Vacancies ◽  
Photoelectrochemical Properties ◽  
Interstitial Zinc ◽  
Photoelectric Properties ◽  
Oxygen Defects ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Sintering Method ◽  
Zno Ceramics

ZnO, as an important semiconductor material, has attracted much attention due to its excellent physical properties, which can be widely used in many fields. Notably, the defects concentration and type greatly affect the intrinsic properties of ZnO. Thus, controllable adjustment of ZnO defects is particularly important for studying its photoelectric properties. In this work, we fabricated ZnO ceramics (ZnO(C)) with different defects through spark plasma sintering (SPS) process by varying sintering temperature and using reduction environment. The experimental results indicate that the changes of color and light absorption in as-prepared ZnO originate from the different kinds of defects, i.e., oxygen vacancies (VO), interstitial zinc (Zni), and Zinc vacancies (VZn). Moreover, with the increase in calcination temperature, the concentration of oxygen defects and interstitial zinc defects in the ceramics increases gradually, and the conductivity of the ceramics is also improved. However, too many defects are harmful to the photoelectrochemical properties of the ceramics, and the appropriate oxygen defects can improve the utilization of visible light.

scholarly journals Thermoelectric properties of ZnO ceramics densified through spark plasma sintering

2020 ◽  
Vol 46 (4) ◽  
pp. 5229-5238 ◽  
Author(s):  
P.M. Radingoana ◽  
S. Guillemet-Fritsch ◽  
J. Noudem ◽  
P.A. Olubambi ◽  
G. Chevallier ◽  
...  
Keyword(s):  
Spark Plasma Sintering ◽  
Thermoelectric Properties ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Zno Ceramics

Elaboration of translucent ZnO ceramics by spark plasma sintering under low temperature

2017 ◽  
Vol 71 ◽  
pp. 151-156 ◽  
Author(s):  
Debao Lin ◽  
Lingcong Fan ◽  
Ying Shi ◽  
Jianjun Xie ◽  
Fang Lei ◽  
...  
Keyword(s):  
Low Temperature ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Zno Ceramics

Influence of electric current on microstructure and electrical property of Al-doped ZnO ceramic consolidated by spark plasma sintering

2020 ◽  
Vol 46 (17) ◽  
pp. 26539-26547
Author(s):  
Shuang Yang ◽  
Fei Chen ◽  
Qiang Shen ◽  
Lianmeng Zhang ◽  
Ao Huang ◽  
...  
Keyword(s):  
Electrical Property ◽  
Electric Current ◽  
Spark Plasma Sintering ◽  
Plasma Sintering ◽  
Spark Plasma ◽  
Doped Zno
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