Structural, dielectric and magnetic properties of double perovskite-La2CoNiO6 ceramics synthesised by wet chemical route

2021 ◽  
Vol 18 (5/6/7/8) ◽  
pp. 622
Author(s):  
Jashandeep Singh ◽  
Amit Kumar ◽  
Uttam Kumar Goutam ◽  
Ram Janay Choudhary ◽  
Ashok Kumar
2010 ◽  
Vol 93 (11) ◽  
pp. 3798-3802 ◽  
Author(s):  
Fransiska Cecilia Kartawidjaja ◽  
Zi Yi Lim ◽  
Serene Lay Geok Ng ◽  
Yu Zhang ◽  
John Wang

2020 ◽  
Vol 21 ◽  
pp. 100417 ◽  
Author(s):  
Mohd Talha ◽  
Pankaj Goyal ◽  
Yucong Ma ◽  
Yuanhua Lin ◽  
Ekemini Ituen

Author(s):  
Pratibha L. Gai ◽  
M. A. Saltzberg ◽  
L.G. Hanna ◽  
S.C. Winchester

Silica based ceramics are some of the most fundamental in crystal chemistry. The cristobalite form of silica has two modifications, α (low temperature, tetragonal form) and β (high temperature, cubic form). This paper describes our structural studies of unusual chemically stabilized cristobalite (CSC) material, a room temperature silica-based ceramic containing small amounts of dopants, prepared by a wet chemical route. It displays many of the structural charatcteristics of the high temperature β-cristobalite (∼270°C), but does not undergo phase inversion to α-cristobalite upon cooling. The Structure of α-cristobalite is well established, but that of β is not yet fully understood.Compositions with varying Ca/Al ratio and substitutions in cristobalite were prepared in the series, CaO:Al2O3:SiO2 : 3-x: x : 40, with x= 0-3. For CSC, a clear sol was prepared from Du Pont colloidal silica, Ludox AS-40®, aluminium nitrate nonahydrate, and calcium nitrate hexahydrate in proportions to form a final composition 1:2:40 composition.


2021 ◽  
Vol 602 ◽  
pp. 412574
Author(s):  
Tahira Akhter ◽  
Muhammad Asif Yousuf ◽  
Muhammad Asghar ◽  
Ibrahim A. Alsafari ◽  
Akmal Jamil ◽  
...  

Rare Metals ◽  
2009 ◽  
Vol 28 (2) ◽  
pp. 122-126 ◽  
Author(s):  
Xianming Wu ◽  
Runxiu Li ◽  
Shang Chen ◽  
Zeqiang He

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