Enhanced ferroelectric properties and thermal stability of nonstoichiometric 0.92(Na0.5Bi0.5)TiO3-0.08(K0.5Bi0.5)TiO3 single crystals

2013 ◽  
Vol 103 (21) ◽  
pp. 212906 ◽  
Author(s):  
Haiwu Zhang ◽  
Chao Chen ◽  
Xiangyong Zhao ◽  
Hao Deng ◽  
Long Li ◽  
...  
2005 ◽  
Vol 60 (5) ◽  
pp. 505-510 ◽  
Author(s):  
Tong-Lai Zhang ◽  
Jiang-Chuang Song ◽  
Jian-Guo Zhang ◽  
Gui-Xia Ma ◽  
Kai-Bei Yu

Cobalt(II) and zinc(II) complexes of ethyl carbazate (ECZ), [Co(ECZ)3](NO3)2 and [Zn(ECZ)3] (NO3)2, were synthesized. Single crystals of these two compounds were grown from aqueous solutions using a slow evaporation method. Their structures have been determined by X-ray diffraction analysis. Both of them are monoclinic with space group P21/n. The complexes are further characterized by element analysis and IR measurements. Their thermal stabilities are studied by using TG-DTG, DSC techniques. When heated to 350 °C, only metal oxide was left for both complexes.


1961 ◽  
Vol 32 (6) ◽  
pp. 1156-1164
Author(s):  
Sigmund Weissmann ◽  
Makoto Hirabayashi ◽  
Hiroshi Fujita

2016 ◽  
Vol 49 (3) ◽  
pp. 873-879 ◽  
Author(s):  
Hui Xiang ◽  
Wei Wang ◽  
Hao-Chen Li ◽  
Xiang-Xiang Cui ◽  
Wen-Shuo Fan ◽  
...  

High-quality and large YBa2Cu3O7−δ(YBCO or Y123) single crystals are necessary for both fundamental studies and practical applications. The recently exploited modified melt growth (MMG) procedure realizes a high efficiency of growth and high purity of Y123. However, it was unexpectedly found that the thermal stability of the NdBa2Cu3O7−δ(Nd123) film seed applied in MMG is greatly reduced owing to a change in the liquid property. In order to solve this problem, a new top-seeding mode, buried seeding, is developed to strengthen the film thermal stability, leading to a remarkable enhancement of endurable maximum processing temperature of over 30 K in low supersaturation. Furthermore, the correlation of the thermal stability of the film seed in melt growth with the liquid property and top-seeding modes is clarified. Most importantly, the buried-seeding mode was successfully applied in this work, opening a promising pathway for the effective growth of single crystals of other REBCO (RE = Nd, Sm, Gd) oxides (possessing a higher peritectic temperature than YBCO), as well as other functional oxides.


1998 ◽  
Vol 8 (7) ◽  
pp. 1619-1623 ◽  
Author(s):  
Frédéric Mougel ◽  
Andrée Kahn-harari ◽  
Gérard Aka ◽  
Denis Pelenc

RSC Advances ◽  
2019 ◽  
Vol 9 (60) ◽  
pp. 34888-34895
Author(s):  
Vineetha P ◽  
Roshan Jose ◽  
K. Venkata Saravanan

This work investigates and reports the effect of ZnO addition on the ferroelectric properties of (K0.5Na0.5)(Nb0.7Ta0.3)O3 (KNNT) ceramics prepared by a solid state reaction method.


1991 ◽  
Vol 34 (3) ◽  
pp. 261-267 ◽  
Author(s):  
L. A. Kornienko ◽  
T. Yu. Chubenko ◽  
L. K. Savitskaya ◽  
V. A. Safonov ◽  
S. N. Tyumentsev ◽  
...  

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