Results 41 to 50 of about 3,368 (210)
Lithium doped potassium sodium niobate ceramics with (K0.50−x/2Na0.50−x/2Lix)NbO3 composition where x = 0.04 and 0.07 were fabricated by solid state calcination and pressureless sintering methods.
Ebru Mensur-Alkoy, Ayse Berksoy-Yavuz
doaj +1 more source
Photorefractive light needles in glassy nanodisordered KNTN [PDF]
We study the formation of 2D self-trapped beams in nanodisordered potassium-sodium-tantalate-niobate (KNTN) cooled below the dynamic glass transition. Supercooling is shown to accelerate the photorefractive response and enhance steady-state anisotropy ...
A. J. Agranat +5 more
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Phase and morphology evolution of (Na1-xKx)NbO3 powders related to calcinations and K2CO3 content [PDF]
Sodium-potassium niobate ((Na1-xKx)NbO3) powders with x = 0.2, 0.4, 0.6 and 0.8 were prepared following the conventional mixed oxide method and characterized by TG-DTA, XRD and SEM techniques.The effects of calcination temperature, dwell time and K2CO3 ...
Steven J. Milne +3 more
doaj
The effect of sintering condition on structure, microstructure, and ferroelectric properties of (K0.44Na0.52Li0.04) (Nb0.86Ta0.10Sb0.04)- O3 (KNL–NTS) has been investigated.
J. A. Cortés +6 more
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Composition and temperature dependence of structure and piezoelectricity in (1−x)(K1−yNay)NbO3-x(Bi1/2Na1/2)ZrO3 lead-free ceramics [PDF]
Lead-free piezoceramics with the composition (1-x)(K1-yNay)NbO3-x(Bi1/2Na1/2)ZrO3 (KNyN-xBNZ) were prepared using a conventional solid state route. X ray diffraction, Raman spectroscopy and dielectric measurements as a function of temperature indicated ...
Feteira, Antonio +7 more
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Aging solitons in photorefractive dipolar glasses [PDF]
We study experimentally the aging of optical spatial solitons in a dipolar glass hosted by a nanodisordered sample of photorefractive potassium-sodium-tantalate-niobate (KNTN).
A. J. Agranat +5 more
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Suppression of Antiferroelectric State in NaNbO3 at High Pressure from In Situ Neutron Diffraction
We report direct experimental evidence of antiferroelectric to paraelectric phase transition under pressure in NaNbO3 using neutron diffraction at room temperature.
Chaplot, S. L. +4 more
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We report investigation of structural phase transitions in technologically important material sodium niobate as a function of temperature on heating over 300-1075 K.
D. Vanderbilt +8 more
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Progress on the doping and phase boundary design of potassium–sodium niobate lead-free ceramics [PDF]
Potassium–sodium niobate (K,Na)NbO3/(KNN) lead-free ceramics have drawn vast amount of attention as one of the effective alternatives to lead-based ones. In recent years, the author’s group concentrated their work on KNN-based ceramics.
Jie Xing +4 more
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We study and demonstrate the frequency conversion of UV radiation, resonant with 369.5 nm transition in Yb+ ions to the C-band wavelength 1580.3 nm and vice-versa using a reverse proton-exchanged waveguide in periodically poled lithium niobate.
Boes, Andreas +6 more
core +1 more source

