Study of Li+ conduction in Li1.3Al0.3−xScxTi1.7(PO4)3 (x=0.01, 0.03, 0.05 and 0.07) NASICON ceramic compound

2016 ◽  
Vol 494 ◽  
pp. 20-25 ◽  
Author(s):  
Dharmesh H. Kothari ◽  
D.K. Kanchan
Keyword(s):  
2007 ◽  
Vol 353-358 ◽  
pp. 1765-1768
Author(s):  
Hong Fei Sun ◽  
Can Ming Wang ◽  
Qiang Song ◽  
Qiong Qiong Yan

Abrasion mechanism of thermocouple cannula is studied in this article. For different working position and condition, different material should be selected to ensure the working characteristics of thermocouple cannula. Several protection methods were introduced to prolong the sevice life of thermocouple cannula. 1. M-Al series intermetallic compound coating protection method. 2. Metal/ceramic compound coating protection method. 3. Development of new abrasion-resisting material for high temperature according to some special work conditions of thermocouple cannula. With the adoption of those new technologies, thermocouple cannula’s service life can be prolonged to 3~5 times of that untreated.


2014 ◽  
Vol 51 ◽  
pp. 105-108 ◽  
Author(s):  
T. Groń ◽  
E. Filipek ◽  
M. Piz ◽  
H. Duda
Keyword(s):  

2017 ◽  
Vol 28 (14) ◽  
pp. 10630-10639 ◽  
Author(s):  
F. Ben Bacha ◽  
K. Guidara ◽  
M. Dammak ◽  
M. Megdiche

2013 ◽  
Vol 327 ◽  
pp. 108-111
Author(s):  
Zhe Chen ◽  
Li Qiang Zhang ◽  
Zhi Ying Zhao ◽  
Miao Miao Wang ◽  
Zhen Hui Shan ◽  
...  

Pure Ca2.6Bi0.4Co4O9Ceramic compound were successfully prepared by adopting a facile solution combustion synthesis method. The crystallinity, morphology were characterized by XRD, FE-SEM. The thermoelectric properties of Bi-doped Ca3Co4O9were also systematically investigated. The results indicate the prepared samples are p-type semiconductors. Both the electrical conductivity and the Seebeck coefficient increase with the increasing of temperatures. Bi substitutions at Ca site enhanced carrier mobility and resulted in a marked increase in thermoelectric properties. The power factor of as-prepared Ca2.6Bi0.4Co4O9sample can reach 2.67×10-4W/mK2at 1000 K. The synthesized Ca2.6Bi0.4Co4O9ceramic materials have potential application for high-temperature thermoelectric energy conversion.


2016 ◽  
Vol 42 (12) ◽  
pp. 14148-14154 ◽  
Author(s):  
Elzbieta Filipek ◽  
Agnieszka Paczesna ◽  
Mateusz Piz
Keyword(s):  

2006 ◽  
Vol 47 ◽  
pp. 31-36
Author(s):  
Alberto Ubaldini ◽  
V.P.S. Awana ◽  
S. Balamurugan ◽  
E. Takayama-Muromachi

The ruthenocuprates family is a very interesting class of materials, because of the coexistence of superconductivity and magnetic ordering. Ruthenocuprates include RuSr2RECu2O8 and RuSr2(RE,Ce)2Cu2O10- (RE = rare earth elements or Y). It is possible to synthesize samples of these phases with Gd, Eu or Sm with normal synthesis conditions. For the others high-pressure high-temperature (HPHT) synthesis is required. We had successfully synthesized the RuSr2Tb1.5Ce0.5Cu2O10 by HPHT technique, starting from RuO2, SrO2, Tb4O7, CeO2, CuO and Cu. Around 300 mg of the mixture was allowed to react in a flat-belt-typehigh- pressure apparatus at 6GPa and 1200 °C – 1550 °C. The optimised temperature of synthesis was found to be in the range between 1350 °C – 1450 °C. The as-synthesized compound crystallized with a structure belonging to the space group I4/mmm. DC magnetic susceptibility versus temperature plot for RuSr2Tb1.5Ce0.5Cu2O10 in an applied field of 10 Oe demonstrated magnetic transition at 150 K but the superconducting transition was not clearly observed. To our knowledge this is the first successful synthesis of the Tb based Ru-1222 phase.


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