The Grain Growth Kinetics of 0.5 mol% B2O3-1 mol% TiO2-doped ZnO Ceramics

2014 ◽  
pp. 637-644
Author(s):  
Gökhan Harda ◽  
Berat Yüksel
Keyword(s):  
Grain Growth ◽  
Growth Kinetics ◽  
Doped Zno ◽  
Grain Growth Kinetics ◽  
Kinetics Of ◽  
Zno Ceramics

scholarly journals Grain growth kinetics for B2O3-doped ZnO ceramics

2015 ◽  
Vol 33 (2) ◽  
pp. 220-229 ◽  
Author(s):  
Berat Yuksel ◽  
T. Osman Ozkan
Keyword(s):  
Activation Energy ◽  
Grain Growth ◽  
Growth Kinetics ◽  
Liquid Phase Sintering ◽  
Growth Exponent ◽  
Second Phase ◽  
Growth Activation ◽  
Doped Zno ◽  
Grain Growth Kinetics ◽  
Zno Ceramics

AbstractGrain growth kinetics in 0.1 to 2 mol % B2O3-added ZnO ceramics was studied by using a simplified phenomenological grain growth kinetics equation Gn = K0 · t · exp(-Q/RT) together with the physical properties of sintered samples. The samples, prepared by conventional ceramics processing techniques, were sintered at temperatures between 1050 to 1250 °C for 1, 2, 3, 5 and 10 hours in air. The kinetic grain growth exponent value (n) and the activation energy for the grain growth of the 0.1 mol % B2O3-doped ZnO ceramics were found to be 2.8 and 332 kJ/mol, respectively. By increasing B2O3 content to 1 mol %, the grain growth exponent value (n) and the activation energy decreased to 2 and 238 kJ/mol, respectively. The XRD study revealed the presence of a second phase, Zn3B2O6 formed when the B2O3 content was > 1 mol %. The formation of Zn3B2O6 phase gave rise to an increase of the grain growth kinetic exponent and the grain growth activation energy. The kinetic grain growth exponent value (n) and the activation energy for the grain growth of the 2 mol % B2O3-doped ZnO ceramics were found to be 3 and 307 kJ/mol, respectively. This can be attributed to the second particle drag (pinning) mechanism in the liquid phase sintering.

Grain growth kinetics of Er2O3 doped ZnO-V2O5 based varistor ceramics

2019 ◽  
Vol 45 (18) ◽  
pp. 24835-24850 ◽  
Author(s):  
Samarpita Roy ◽  
Tapatee Kundu Roy ◽  
Debdulal Das
Keyword(s):  
Grain Growth ◽  
Growth Kinetics ◽  
Doped Zno ◽  
Grain Growth Kinetics ◽  
Kinetics Of

Grain-growth kinetics of nanostructured gold

2006 ◽  
Vol 515 (1) ◽  
pp. 353-356 ◽  
Author(s):  
O. Yevtushenko ◽  
H. Natter ◽  
R. Hempelmann
Keyword(s):  
Grain Growth ◽  
Growth Kinetics ◽  
Nanostructured Gold ◽  
Grain Growth Kinetics ◽  
Kinetics Of

scholarly journals Grain growth kinetics and magnetic properties of a V-doped ZnO dilute magnetic oxide

2020 ◽  
Vol 46 (2) ◽  
pp. 2116-2121 ◽  
Author(s):  
Sion F. Olive-Méndez ◽  
Ricardo López Antón ◽  
José T. Holguín-Momaca
Keyword(s):  
Magnetic Properties ◽  
Grain Growth ◽  
Growth Kinetics ◽  
Magnetic Oxide ◽  
Doped Zno ◽  
Grain Growth Kinetics ◽  
Dilute Magnetic Oxide

Grain-Growth Kinetics of Nanocrystalline Iron Studied In Situ by Synchrotron Real-Time X-ray Diffraction

2000 ◽  
Vol 104 (11) ◽  
pp. 2467-2476 ◽  
Author(s):  
H. Natter ◽  
M. Schmelzer ◽  
M.-S Löffler ◽  
C. E. Krill ◽  
A. Fitch ◽  
...  
Keyword(s):  
Real Time ◽  
Grain Growth ◽  
Growth Kinetics ◽  
X Ray Diffraction ◽  
X Ray ◽  
Nanocrystalline Iron ◽  
Grain Growth Kinetics ◽  
Kinetics Of
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