The Characterization of Strain vs Field and Crystal Structure for PBNN Piezoelectric Ceramic with Tungsten Bronze Structure

1999 ◽  
Vol 38 (Part 1, No. 3A) ◽  
pp. 1503-1505
Author(s):  
Daren Chen ◽  
textscLi Guorong ◽  
textscYin Qingrui
Keyword(s):  
Crystal Structure ◽  
Piezoelectric Ceramic ◽  
Tungsten Bronze ◽  
Tungsten Bronze Structure

scholarly journals Characterization of K6Ta10.8O30 Microrods with Tetragonal Tungsten Bronze-Like Structure Obtained from Tailings from the Penouta Sn-Ta-Nb Deposit

Nanomaterials ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 2289
Author(s):  
Belén Sotillo ◽  
Lorena Alcaraz ◽  
Félix A. López ◽  
Paloma Fernández
Keyword(s):  
Crystal Structure ◽  
Tungsten Bronze ◽  
X Ray Diffraction ◽  
Tetragonal Tungsten Bronze ◽  
X Ray ◽  
The North ◽  
Recovered Material ◽  
North Of Spain ◽  
Scanning Electron

In this work, a deep characterization of the properties of K6Ta10.8O30 microrods has been performed. The starting material used to grow the microrods has been recovered from mining tailings coming from the Penouta Sn-Ta-Nb deposit, located in the north of Spain. The recovered material has been submitted to a thermal treatment to grow the microrods. Then, they have been characterized by scanning electron microscopy, X-ray diffraction, micro-Raman and micro-photoluminescence. The results of our study confirm that the K6Ta10.8O30 microrods have a tetragonal tungsten bronze-like crystal structure, which can be useful for ion-batteries and photocatalysis.

Crystal structure, ferroelectricity and polar order in a Ba4R2Zr4Nb6O30 (R = La, Nd, Sm) tetragonal tungsten bronze new system

2017 ◽  
Vol 5 (16) ◽  
pp. 4009-4016 ◽  
Author(s):  
Wen Bin Feng ◽  
Xiao Li Zhu ◽  
Xiao Qiang Liu ◽  
Xiang Ming Chen
Keyword(s):  
Crystal Structure ◽  
Tungsten Bronze ◽  
Tungsten Bronze Structure ◽  
Tetragonal Tungsten Bronze ◽  
Polar Order ◽  
System P ◽  
New System

A Pb-free ferroelectric new system Ba4R2Zr4Nb6O30 (R = La, Nd, Sm) with a filled tetragonal tungsten bronze structure and unique properties has been synthesized and characterized.

Processing by both classical and mechanosynthesis routes and characterization of a new solid solution of tungsten–bronze structure ceramics

2006 ◽  
Vol 41 (10) ◽  
pp. 1798-1805 ◽  
Author(s):  
M. Khachane ◽  
A. Moure ◽  
M. Elaatmani ◽  
A. Zegzouti ◽  
M. Daoud ◽  
...  
Keyword(s):  
Solid Solution ◽  
Tungsten Bronze ◽  
Tungsten Bronze Structure

scholarly journals Effects of oxygen-deficiency on crystal structure, dielectric and ferroelectric properties in Sr5SmTi3+2xNb7−2xO30−x with tungsten bronze structure

RSC Advances ◽  
2017 ◽  
Vol 7 (44) ◽  
pp. 27370-27376 ◽  
Author(s):  
Bao Li Deng ◽  
Xiao Li Zhu ◽  
Xiao Qiang Liu ◽  
Xiang Ming Chen
Keyword(s):  
Crystal Structure ◽  
Oxygen Deficiency ◽  
Ferroelectric Properties ◽  
Tungsten Bronze ◽  
Tungsten Bronze Structure

Oxygen-deficient tungsten bronze ceramics Sr5SmTi3+2xNb7−2xO30−x are prepared. The oxygen deficiency results in three orders of incommensurate superlattice and weakened ferroelectricity.

Crystal structure analysis of 4-R-phenyl-2,6-dimethyl-3,5-N-(dimethylcarbamoyl)-1,4-dihydropyridines [R=2-nitro (1), 4-methoxy (2) and 3,4-dichloro (3)]

1998 ◽  
Vol 213 (3) ◽  
Author(s):  
M. Bidya Sagar ◽  
K. Ravikumar ◽  
Y. S. Sadanandam
Keyword(s):  
Crystal Structure ◽  
Calcium Channel ◽  
Structure Analysis ◽  
Crystal Structure Analysis ◽  
Calcium Channel Antagonists

AbstractThe crystallographic characterization of the following three calcium channel antagonists is reported here: 2,6-dimethyl-3,5-dicarbamoyl-4-[2-nitro]-1,4-dihydropyridine (

scholarly journals Heteroleptic [Cu(P^P)(N^N)][PF6] Complexes: Effects of Isomer Switching from 2,2′-biquinoline to 1,1′-biisoquinoline

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 185
Author(s):  
Nina Arnosti ◽  
Marco Meyer ◽  
Alessandro Prescimone ◽  
Edwin C. Constable ◽  
Catherine E. Housecroft
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Nmr Spectra ◽  
Phenyl Ether ◽  
Quantum Yields ◽  
Dynamic Processes ◽  
Electrochemical Behaviors ◽  
Ambient Temperatures ◽  
Π Stacking

The preparation and characterization of [Cu(POP)(biq)][PF6] and [Cu(xantphos)(biq)][PF6] are reported (biq = 1,1′-biisoquinoline, POP = bis(2-(diphenylphosphanyl)phenyl)ether, and xantphos = (9,9-dimethyl-9H-xanthene-4,5-diyl)bis(diphenylphosphane). The single crystal structure of [Cu(POP)(biq)][PF6] 0.5Et2O was determined and compared to that in three salts of [Cu(POP)(bq)]+ in which bq = 2,2′-biquinoline. The P–C–P angle is 114.456(19)o in [Cu(POP)(biq)]+ compared to a range of 118.29(3)–119.60(3)o [Cu(POP)(bq)]+. There is a change from an intra-POP PPh2-phenyl/(C6H4)2O-arene π-stacking in [Cu(POP)(biq)]+ to a π-stacking contact between the POP and bq ligands in [Cu(POP)(bq)]+. In solution and at ambient temperatures, the [Cu(POP)(biq)][PF6]+ and [Cu(xantphos)(biq)]+ cations undergo several concurrent dynamic processes, as evidenced in their multinuclear NMR spectra. The photophysical and electrochemical behaviors of the heteroleptic copper (I) complexes were investigated, and the effects of changing from bq to biq are described. Short Cu···O distances within the [Cu(POP)(biq)]+ and [Cu(xantphos)(biq)]+ cations may contribute to their very low photoluminescent quantum yields.

Sign in / Sign up

Export Citation Format

Share Document