Reaction process and densification process of mixed ceramics

1995 ◽  
Vol 15 (2) ◽  
pp. 173-184 ◽  
Author(s):  
Koji Watari ◽  
Masaki Yasuoka ◽  
Maria Cecilia Valecillos ◽  
Shuzo Kanzaki
Keyword(s):  
Reaction Process ◽  
Densification Process ◽  
Mixed Ceramics

Researches on the Synthesis and Biological Activity of 1,2,4-tiadizoles-3,5-disubstituted using Ditiazolium Salts as Precursors

2008 ◽  
Vol 59 (1) ◽  
pp. 101-105
Author(s):  
Irina Zarafu ◽  
Lucia Veronica Ivan ◽  
Iuliana Harasim
Keyword(s):  
Biological Activity ◽  
Comparative Study ◽  
Anticancer Activity ◽  
Reaction Process ◽  
Physical Analysis ◽  
Ultrasound Exposure ◽  
Medium Activity ◽  
Antibacterial And Anticancer Activity

3,5-disubstituted-1,2,4-tiadiazoles with substituted-styril and heterocycle-vinyl were obtained by extending the method which implies the use of 3,5-disubstituted-1,2,4-ditiazolium salts as precursors [1-4]. A comparative study of the reaction process in the case of perchlorates, diacide phosphates, tribromides and 3,5-distyrile-dithiazolium triiodides, taken as etalon, was perfomed. Good yields were obtained when using perchlorates, phosphates and triiodides. The reaction was made by heating the reaction mixture and by ultrasound exposure. The structure of the compounds was confirmed by chemical and physical analysis and the data obtained were identical to those of 3,5-disubstituted-1,2,4-tiadiazoles obtained by another methods [5,6]. The biological (antibacterial and anticancer) activity of the synthesized compounds was tested and the results indicated a medium activity.

scholarly journals Studies on the Densification Process of Kaolin-Feldspar Bodies

1973 ◽  
Vol 81 (929) ◽  
pp. 7-16 ◽  
Author(s):  
Eung Sang LEE ◽  
Kenya HAMANO
Keyword(s):  
Densification Process

Iodine-Mediated Sulfenylation of Imidazo[1,2-a]pyridines with Ethyl Arylsulfinates

Synlett ◽  
2021 ◽  
Author(s):  
Dong Tang ◽  
Jian Sun ◽  
Yangxiu Mu ◽  
Zafar Iqbal ◽  
Jing Hou ◽  
...  
Keyword(s):  
Reaction Process ◽  
Mild Conditions ◽  
Plausible Mechanism

AbstractA simple iodine-mediated approach is reported for the synthesis of sulfenylated imidazo[1,2-a]pyridines through the reaction of imidazo[1,2-a]pyridines with ethyl arylsulfinates under mild conditions. The reaction scope was investigated, and a plausible mechanism is proposed to elucidate the reaction process and activation mode. The results indicate that ethyl sulfinates are efficient sulfur sources for the construction of C–S bonds.

Direct Detection and Visualization of the H+ Reaction Process in a VO2 Cathode for Aqueous Zinc-Ion Batteries

2021 ◽  
pp. 7076-7084
Author(s):  
Shiyong Zuo ◽  
Jun Liu ◽  
Weixin He ◽  
Sahar Osman ◽  
Zhengbo Liu ◽  
...  
Keyword(s):  
Direct Detection ◽  
Zinc Ion ◽  
Reaction Process

Solid-state reaction process for high-quality organometallic halide perovskite thin film

2021 ◽  
Vol 227 ◽  
pp. 111014
Author(s):  
Chien-Chung Hsu ◽  
Sheng-Min Yu ◽  
Kun-Mu Lee ◽  
Chuan-Jung Lin ◽  
Hao-Chien Cheng ◽  
...  
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Solid State Reaction ◽  
Reaction Process ◽  
High Quality ◽  
Halide Perovskite

Impedance Analysis of Layer Structured NBT–CBT Mixed Ceramics

1998 ◽  
Vol 12 (11) ◽  
pp. 433-441 ◽  
Author(s):  
P. S. Rama Sastry ◽  
T. Bhimasankaram ◽  
G. S. Kumar ◽  
G. Prasad
Keyword(s):  
Comparative Study ◽  
Complex Impedance ◽  
Impedance Analysis ◽  
Equivalent Circuits ◽  
Impedance Spectra ◽  
Ceramic System ◽  
Different Temperatures ◽  
Mixed Ceramics ◽  
Mixed Ceramic ◽  
Complex Impedance Spectra

Complex impedance spectra of ferroelectric mixed ceramic system ( Na 0.5 Bi 0.5)1-x Ca x Bi 4 Ti 4 O 15 with x=0, 0.1, 0.3, 0.5, 0.7 and 1 was studied as a function of frequency and temperature in the range 1 KHz to 10 MHz and 30°C to 620°C respectively. Equivalent circuits involving resistive and capacitive elements at different temperatures, activation energies of relaxations and conduction were evaluated using impedance plots. A comparative study of impedance and conductivity facilities an insight in understanding the electrical nature of these electroceramics.

Simulations and process analysis of the carbonation–calcination reaction process with intermediate hydration

Fuel ◽  
2012 ◽  
Vol 92 (1) ◽  
pp. 94-106 ◽  
Author(s):  
William Wang ◽  
Shwetha Ramkumar ◽  
Danny Wong ◽  
Liang-Shih Fan
Keyword(s):  
Process Analysis ◽  
Reaction Process
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