scholarly journals Synthesis of antiferroelectric (Bi0.534Na0.5)0.94Ba0.06TiO3 ceramics with high phase transition temperature and broad temperature range by a solid-state reaction method

2013 ◽  
Vol 58 (23) ◽  
pp. 2893-2897 ◽  
Author(s):  
XiaoJuan Li ◽  
ZengZhe Xi ◽  
Wei Long ◽  
PinYang Fang
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Solid State ◽  
Phase Transition Temperature ◽  
Solid State Reaction ◽  
Solid State Reaction Method ◽  
Broad Temperature Range ◽  
Reaction Method ◽  
Temperature Range ◽  
High Phase

Superconducting Compound Hg0.8Sb0.2Ba2Ca2Cu3O8+δ Compared with Hg0.8Sb0.2Ba2Ca1Cu2O6+δ to Evaluate Transition Temperature

2020 ◽  
Vol 18 (11) ◽  
pp. 14-18
Author(s):  
Abbas K. Saadon ◽  
Kareem A. Jasim ◽  
Auday H. Shaban
Keyword(s):  
High Temperature ◽  
Transition Temperature ◽  
Solid State ◽  
Solid State Reaction ◽  
Hot Spot ◽  
Solid State Reaction Method ◽  
X Ray Diffraction ◽  
Reaction Method ◽  
X Ray ◽  
Superconducting Compound

The high temperature superconductor’s compounds are one of the hot spot field of science, due to their applications in industries. Hg0.8Sb0.2Ba2Ca2Cu3O8+δ and Hg0.8Sb0.2Ba2Ca1Cu2O6+δ, were manufactured using a doable-step of solid state reaction method. The samples were sintered at 800 ° C. The transition temperatures Tc are found from electrically resistively by using four probe techniques. The resistivity become zero when the transition temperature Tc(offset) have 131 and 119 K, and the onset temperature Tc(onset) have 139 K for Hg0.8Sb0.2Ba2Ca2Cu3O8+δ and 132 K for Hg0.8Sb0.2Ba2Ca1Cu2O6+δ. Analysis of X-ray diffraction showed a tetragonal structure with lattice parameters changes for all samples.

Photoresponsive character in double-doped La2/3(Ca2/3Sr1/3)1/3MnO3 thin film

2005 ◽  
Vol 83 (7) ◽  
pp. 699-704 ◽  
Author(s):  
Y. Wang ◽  
R Ren ◽  
C Chen ◽  
D Ren ◽  
K Jin ◽  
...  
Keyword(s):  
Thin Film ◽  
Phase Transition ◽  
Solid State ◽  
Room Temperature ◽  
Rf Magnetron Sputtering ◽  
Solid State Reaction Method ◽  
Metallic State ◽  
Reaction Method ◽  
Temperature Range ◽  
Cw Laser

A Ca, Sr double-doped La2/3(Ca2/3Sr1/3)1/3MnO3 thin film with a thickness of about 60~nm was deposited on (100) LaAlO3 substrates using the RF magnetron sputtering method from the bulk compound prepared using the solid-state reaction method. The experimental results show that a phase transition from the ferromagnetic metallic state to the paramagnetic insulating state occurs at 341 K (near to Tp, the highest peak temperature). The R–T curve deviation of the thin film with the application of CW laser is dramatic in the low-temperature range and Δ R/R is positive. At 276 K, the Δ R/R reaches the maximum, about 41 %, and the temperature of the photo-induced resistance maximum of this double-doped thin film appears near to room temperature range, which offers a new method for the application of CMR photo-electric devices.PACS Nos.: 78.66.–w, 81.07–b

Thermopower of Sr1-xLaxMnO3 (x = 0.1-1.0)

2013 ◽  
Vol 770 ◽  
pp. 343-345
Author(s):  
Nattayaporn Boonmeethongyoo ◽  
Tosawat Seetawan
Keyword(s):  
Steady State ◽  
Solid State ◽  
Solid State Reaction ◽  
Solid State Reaction Method ◽  
Reaction Method ◽  
Temperature Range ◽  
Air Atmosphere ◽  
Steady State Method ◽  
State Method

The polycrystalline of Sr1xLaxMnO3 (x = 0.11.0) samples were synthesized by solid state reaction method and general sintering. The Sr1xLaxMnO3 powders were calcined and sintered by furnace at 900 K and 1173 K for 3 hours in air atmosphere, respectively. Thermopower of the samples were measured by steady state method at temperature range of 290-520 K in air. The thermopower all samples were increased with increasing the La content substitution.

Critical behavior study near the paramagnetic to ferromagnetic phase transition temperature in Pr0.6−xErxCa0.1Sr0.3MnO3 (x = 0, 0.02 and 0.06) manganites

RSC Advances ◽  
2016 ◽  
Vol 6 (81) ◽  
pp. 78017-78027 ◽  
Author(s):  
H. Omrani ◽  
M. Mansouri ◽  
W. Cheikhrouhou Koubaa ◽  
M. Koubaa ◽  
A. Cheikhrouhou
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Solid State ◽  
Critical Behavior ◽  
Solid State Reaction Method ◽  
Ferromagnetic Phase ◽  
Conventional Solid State Reaction ◽  
Reaction Method ◽  
Behavior Study ◽  
Ferromagnetic Phase Transition

The aim of the present work is to study the critical behavior of Pr0.6−xErxCa0.1Sr0.3MnO3 (x = 0, 0.02 and 0.06) manganites, synthetized by the conventional solid-state reaction method, around the paramagnetic (PM)–ferromagnetic (FM) phase transition.

Solid-state-reaction synthesis of VO2 nanoparticles with low phase transition temperature, enhanced chemical stability and excellent thermochromic properties

RSC Advances ◽  
2015 ◽  
Vol 5 (130) ◽  
pp. 108015-108022 ◽  
Author(s):  
Nan Shen ◽  
Bingrong Dong ◽  
Chuanxiang Cao ◽  
Zhang Chen ◽  
Hongjie Luo ◽  
...  
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Solid State ◽  
Phase Transition Temperature ◽  
Chemical Stability ◽  
Solid State Reaction ◽  
Reaction Synthesis ◽  
Thermochromic Properties

Solid-state-reaction synthesis of VO2 nanoparticles at 500 °C with different time.

Synthesis of Bi0.5(Na0.7K0.2Li0.1)0.5TiO3 Powders through Molten Salt Method

2008 ◽  
Vol 47-50 ◽  
pp. 197-200
Author(s):  
Tian He ◽  
Qun Lv ◽  
Hai Tang Yang ◽  
Jin Hui Dai ◽  
Tao Liu
Keyword(s):  
Solid State ◽  
Molten Salt ◽  
Solid State Reaction ◽  
Solid State Reaction Method ◽  
Processing Route ◽  
Molten Salt Method ◽  
Powder Synthesis ◽  
Reaction Method ◽  
Temperature Range

The Bi0.5(Na0.7K0.2Li0.1)0.5TiO3 powder synthesis through molten salt method was investigated in the temperature range of 650 ~ 700°C for 2 ~ 4h. The XRD results indicated that the optimal synthesizing temperature for molten salt method was 700°C, significantly lower than that for conventional processing route of solid state reaction method, where a calcining temperature of 850°C was needed. The SEM results revealed better crystallization of the powders obtained through molten salt method, compared with those through the conventional processing route of solid state reaction method.

Effect of CaZrO3 on phase structure and electrical properties of KNN-based lead-free ceramics

RSC Advances ◽  
2015 ◽  
Vol 5 (25) ◽  
pp. 19647-19651 ◽  
Author(s):  
Yang Zhang ◽  
Lingyu Li ◽  
Wangfeng Bai ◽  
Bo Shen ◽  
Jiwei Zhai ◽  
...  
Keyword(s):  
Phase Transition ◽  
Solid State ◽  
Electrical Properties ◽  
Solid State Reaction ◽  
Solid State Reaction Method ◽  
Lead Free ◽  
Polymorphic Phase Transition ◽  
Conventional Solid State Reaction ◽  
Reaction Method ◽  
Lead Free Ceramics

(1 − x)[0.93(K0.5Na0.5)NbO3–0.07LiNbO3]–xCaZrO3 (KNN–LN–xCZ) lead-free piezoelectric ceramics have been prepared by the conventional solid state reaction method and investigated to differentiate the effects of polymorphic phase transition.

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