Hydrothermal solvothermal synthesis potassium sodium niobate lead-free piezoelectric ceramics assisted with microwave
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Materials Science: Materials in Electronics"
DOI: 10.1007/s10854-017-7968-1
Abstract: Potassium–sodium niobate (Na, K)NbO3 (NKN) powders were synthesized successfully by reducing holding time via microwave-assisted hydrothermal solvothermal method (MHSM). The obtained powders were characterized by X-ray diffraction and scanning electron microscope with special emphasis on the… read more here.
Keywords: potassium sodium; hydrothermal solvothermal; sodium niobate; solvothermal synthesis ... See more keywords
Observation of room temperature ferromagnetism and magneto-electric coupling in dual transition element substituted ferroelectric potassium sodium niobate
Sign Up to like & getrecommendations! Published in 2019 at "Ceramics International"
DOI: 10.1016/j.ceramint.2019.06.141
Abstract: Abstract In this work, we established multiferroic and magnetoelectric (ME) coupling characteristics in ferroelectric potassium sodium niobate K0.5Na0.5NbO3 (KNN) ceramics by substitution of dual transition metal (TM) ions such as Fe, Co. Powder X-ray diffraction… read more here.
Keywords: sodium niobate; ferroelectric potassium; potassium sodium; dual transition ... See more keywords
In-situ study of the formation of sodium-niobate-silicate glass-ceramics with dielectric spectroscopy
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Non-crystalline Solids"
DOI: 10.1016/j.jnoncrysol.2020.120553
Abstract: Abstract The dielectric response and the effect of heat treatment on the properties of a potassium-sodium-niobium-silicate glass with a high content of niobium are studied in wide temperature and frequency ranges. Heat treatment of the… read more here.
Keywords: silicate glass; glass; sodium niobate; spectroscopy ... See more keywords
Using simple aqueous precursors for a green synthetic pathway to potassium sodium niobate thin films
Sign Up to like & getrecommendations! Published in 2020 at "Thin Solid Films"
DOI: 10.1016/j.tsf.2020.138270
Abstract: Abstract Potassium sodium niobate (KNN) is a leading candidate for certain applications within the ongoing move towards lead-free ferroelectric and piezoelectric materials. One common synthetic route for synthesizing KNN utilizes sol-gel chemistry, which typically suffers… read more here.
Keywords: thin films; green synthetic; chemistry; sodium niobate ... See more keywords
23Na NMR Spectroscopic Quantification of the Antiferroelectric–Ferroelectric Phase Coexistence in Sodium Niobate
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.0c07202
Abstract: The irreversible field-induced phase transition between the antiferroelectric (P) and ferroelectric (Q) polymorphs of sodium niobate (NaNbO3) ceramics constitutes a focal point in improving the material’s energy storage properties. The coexistence of P and Q… read more here.
Keywords: antiferroelectric ferroelectric; field; ferroelectric phase; sodium niobate ... See more keywords
Enhanced Energy Storage Performance of Sodium Niobate-Based Relaxor Dielectrics by Ramp-to-Spike Sintering Profile.
Sign Up to like & getrecommendations! Published in 2020 at "ACS applied materials & interfaces"
DOI: 10.1021/acsami.0c08737
Abstract: Sodium niobate (NaNbO3)-based lead free ceramics have been actively studied for energy storage applications due to their antiferroelectric and/or relaxor features achieving in modified systems. The P-E loops of NaNbO3-based ceramics are usually hysteretic because… read more here.
Keywords: spike sintering; energy; sodium niobate; energy storage ... See more keywords
The role of cations in hydrothermal synthesis of nonlinear optical sodium niobate nanocrystals.
Sign Up to like & getrecommendations! Published in 2020 at "Nanoscale"
DOI: 10.1039/d0nr03840g
Abstract: The usability of the alkali niobates with their ferroelectric and photorefractive properties could be expanded if the development of synthesis methods would allow to obtain small, preferably monodispersed, crystals in the sub-μm to nanometer regime.… read more here.
Keywords: hydrothermal synthesis; role cations; synthesis; sodium niobate ... See more keywords
Atmosphere-Assisted FLASH Sintering of Nanometric Potassium Sodium Niobate
Sign Up to like & getrecommendations! Published in 2022 at "Nanomaterials"
DOI: 10.3390/nano12193415
Abstract: The request for extremely low-temperature and short-time sintering techniques has guided the development of alternative ceramic processing. Atmosphere-assisted FLASH sintering (AAFS) combines the direct use of electric power to packed powders with the engineering of… read more here.
Keywords: assisted flash; potassium sodium; sodium niobate; flash sintering ... See more keywords