Results 91 to 100 of about 712 (189)

Coexisting polarization mechanisms in ferroelectric uniaxial tetragonal tungsten bronze Ca_0.3Ba_0.7Nb_2O_6

open access: yes
Using a broad band dielectric spectroscopy approach (1 to 10^14 Hz) we prove that the tungsten bronze Ca0.3Ba0.7Nb2O6 (CBN-30) displays a ferroelectric phase transition of mixed displacive and order-disorder character, and its paraelectric phase does not
Kadlec, C.   +8 more
core  

Tetragonal Tungsten Bronze Framework as Potential Anode for Na-Ion Batteries

open access: yes, 2016
Na-ion batteries (NIBs) are becoming more promising owing to potentially better rate performance than Li-ion batteries apart from resource abundance. However, activation of Na-storage electrochemistry remarkably depends on the modification or expansion ...
Dongguang Yin   +17 more
core   +1 more source

Effect of sodium substitution by yttrium on the structural, dielectric and electrical properties of Ba2Na(1-3x)YxNb5O15 ceramics. [PDF]

open access: yesHeliyon, 2023
Yahakoub EH   +6 more
europepmc   +1 more source

The compressibility of sodium tungsten bronzes

open access: yes, 1981
The linear compressibility of cubic sodium tungsten bronze NaxWO3 (x = 0.72) is (-8.56 ± 0.54) . 1012 Pa-1; the linear compressibility of type I tetragonal bronze (x = 0.46) is (-20.2 ± 1.3) . 1012 Pa-1 parallel to the a axis and (+4.17 ± 1.9) .
Jiří Vondrák, Jozef Zámečník
core   +1 more source

Cation Defect Mediated Phase Transition in Potassium Tungsten Bronze

open access: yes
Applying in situ transmission electron microscopy, the phase instability in potassium tungsten bronze (KxWO3, 0.18 x < 0.57) induced by heating was investigated.
Peili Zhao (10356090)   +7 more
core   +2 more sources

Submillimeter-Long WS2 Nanotubes: The Pathway to Inorganic Buckypaper. [PDF]

open access: yesNano Lett, 2023
Kundrát V   +9 more
europepmc   +1 more source

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