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Showing 1 to 20 of 58 for “"Barium Titanate"”.
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Barium Titanate-Based Magnetoelectric Nanocomposites
Barium Titanate (BaTiO3 or BTO) has attracted an ever increasing research interest because of its wide range of potential applications. Nano-sized or nanostructured BTO has found applications in new, useful smart devices, such as sensors and piezoelectric devices. Not only limited to one material, …
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Investigation of Rare-Earth Doped Barium Titanate
Made available in DSpace on 2014-12-05T22:57:02Z (GMT). No. of bitstreams: 1 5904576.pdf: 2919994 bytes, checksum: 7cdf26d7ea08f532595247cdf679a0ef (MD5) Previous issue date: 1959
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Dispersions of barium titanate in organic liquids
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1982.
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Ferroelectric Barium Titanate Nanowires: Synthesis, Properties, and Device Applications
With the assistance of nanomanipulation and electron beam deposition techniques, a nanoscale energy converter device was fabricated using an individual BaTiO3 nanowire. In this device, due to the piezoelectric effect, voltage response was generated from the BaTiO3 nanowire by a periodically varying …
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The dynamic behavior of domain walls in barium titanate
Thesis (Ph.D.) Massachusetts Institute of Technology. Dept. of Physics, 1954.
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Infrared absorption studies on barium titanate and related crystals
Thesis (Ph.D.) Massachusetts Institute of Technology. Dept. of Physics, 1956.
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Degradation mechanisms of barium titanate based thick film capacitors
… including degradation, of high K (≅ 500) barium titanate based thick film capacitors were studied. It was found that a gold conductor made from Au metallo-organic paste is not compatible with the porous high K dielectric material. The leakage current of a thick film capacitor made from …
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Electrical transport properties of barium titanate-based capacitor ceramics
Electrical conduction mechanisms in BaTiO₃-based ferroelectric capacitor ceramics with an emphasis on the X7R type were studied. Dominant charge carriers in this material were identified as conduction band electrons below a temperature of 850°C. This was substantiated by the following results: …
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Hydrothermal conversion of diatom frustules into barium titanate based replicas
… replicas to an aqueous basic solution containing barium hydroxide to form barium titanate and barium strontium titanate replicas. The effects of reaction temperature, time, and solution composition on extent of conversion were examined. The conventional method of converting titanium dioxide to …
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Self-Assembled Barium Titanate Nanoscale Films by Molecular Beam Epitaxy
… during growth. Historically, the growth of barium titanate (BaTiO3) by molecular beam epitaxy has relied on a growth technique called shuttered RHEED. Shuttered RHEED controls the stoichiometry of barium titanate through the precise deposition of alternating layers of BaO and TiO2. While …
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Intrinsic degradation mechanisms of barium titanate based multilayer ceramic capacitors
A study was conducted into the intrinsic degradation behavior of X7R and Z5U capacitors. The major goals of this research were: 1) to determine current-voltage, activation energy and leakage current characteristics for such capacitors. 2) to investigate how these characteristics change with …
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Electrical conduction transport mechanisms of barium titanate- based multilayer ceramic capacitors
The major objectives of this study were to examine electrical conduction properties of BaTiO3-based multilayer ceramic ( MLC ) capacitors in order to gain a better understanding of the conduction transport mechanisms inside the devices. The experiments involved mainly leakage current versus time …
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Grain size effect on structure and properties for chemically-prepared barium titanate
Many reports exist in the literature which indicate that BaTiO$\sb3,$ when prepared as a powder with small particle size $({<}1\mu$m) or as a polycrystalline ceramic with small grain size, displays dramatic deviations in crystal structure and electrical properties, compared with forms involving …
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Growth and characterization of high-purity and iron-doped photorefractive barium titanate
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 1987.
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Characterization of Internal Boundary Layer Capacitors Based Upon Barium-Titanate and Strontium-Titanate
The properties of polycrystalline electrical ceramics are greatly influenced by the electrical and mechanical boundary conditions existing at grain and phase boundaries. The dielectric properties of internal boundary layer capacitor are directly related to their microstructure, in which …
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