نتایج جستجو برای: calcium titanate

تعداد نتایج: 170772  

Journal: :journal of medical signals and sensors 0
shahram rahmati mohammad basir basiriani mohammad rafienia jaber yaghini keyvan raeissi

osseointegration has been the concern of implantology for many years. researchers have used various ceramic coatings for this purpose; however, piezoelectric ceramics (e.g., barium titanate [bto]) are a novel fi eld of interest. in this regard, bto (batio3 , bto) coating was fabricated by electrophoretic deposition on ti6al4v medical alloy, using sol-gel-synthesized nanometer bto powder. struct...

Journal: :Chemical communications 2009
Gang Liu Lianzhou Wang Chenghua Sun Zhigang Chen Xiaoxia Yan Lina Cheng Hui-Ming Cheng Gao Qing Max Lu

Nitrogen-doped titania nanosheets with visible light response were synthesized by exfoliating a layered titanate with homogeneous nitrogen doping.

Journal: :Physical review letters 2011
F Y Bruno J Garcia-Barriocanal M Varela N M Nemes P Thakur J C Cezar N B Brookes A Rivera-Calzada M Garcia-Hernandez C Leon S Okamoto S J Pennycook J Santamaria

We report on the magnetic coupling of La0.7Sr0.3MnO3 layers through SrTiO3 spacers in La0.7Sr0.3MnO3/SrTiO3 epitaxial heterostructures. Combined aberration-corrected microscopy and electron-energy-loss spectroscopy evidence charge transfer to the empty conduction band of the titanate. Ti d electrons interact via superexchange with Mn, giving rise to a Ti magnetic moment as demonstrated by x-ray...

Journal: :Physical review letters 2004
D P Almond C R Bowen

The frequency dependent ac conductivity and permittivity of porous lead zirconate titanate ceramic with the pore volume filled with water are shown to match the simulated electrical response of a large network of randomly positioned resistors and capacitors. Anomalous power law dispersions in conductivity and permittivity are shown to be an electrical response characteristic of the microstructu...

Journal: :Journal of the American Chemical Society 2002
Jeffrey J Urban Wan Soo Yun Qian Gu Hongkun Park

We report the solution-based synthesis of single-crystalline nanorods composed of barium titanate (BaTiO3) and strontium titanate (SrTiO3), which yields well-isolated nanorods with diameters ranging from 5 to 60 nm and lengths reaching up to >10 mum. Electron microscopy and diffraction measurements show that these nanorods are composed of single-crystalline cubic perovskite BaTiO3 and SrTiO3 wi...

Journal: :Physical chemistry chemical physics : PCCP 2016
A Anto Jeffery A Pradeep Michael Rajamathi

Amine intercalated titanates were synthesized by direct exchange of potassium ions of K2Ti4O9 by alkyl ammonium ions of various alkyl chain lengths. These intercalated solids exfoliate well in alcohols of different alkyl chain lengths and non-polar solvents such as toluene and hexane to yield colloidal dispersions of titanate nanosheets. The longer the alkyl chain of the intercalated amine the ...

Journal: :Fizika tverdogo tela 2022

It is shown that microstructure, dielectric and piezoelectric properties change in films based on lanthanum-substituted bismuth titanate (BLT) depending the alloying impurity material, which leads to changes coercive voltage, internal displacement field control coefficient. Keywords: lead-free ferroelectric films, titanate, electrophysical properties, capacitance-voltage characteristics, piezor...

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