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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
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Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 331 to 340 of 2246 (0.023 seconds)Spelling suggestions: "subject:"[een] CERAMICS"" "subject:"[enn] CERAMICS""
| 331 |
Chemical processing and structural simulations of electronic materials in the barium-oxide - titanium-dioxide system.Phule, Pradeep Prabhakar. January 1989 (has links)
Novel low temperature wet chemical processes for the synthesis of gels and ultrafine powders of BaTiO₃ and BaTi₄O₉ were developed. Under acidic conditions a titanyl acylate precursor was obtained by molecular modification of titanium isopropoxide. In the sol-gel process, amorphous BaTiO₃ gels obtained under acidic conditions were heat treated at ≈950-1000°C yielding fine (≈ 1-3 μm), high purity (99.9%) stoichiometric (Ba/Ti = 0.99) BaTiO₃ powders. In the sol-precipitation process, ultrafine (≈ 10 nm) crystalline BaTiO₃ powders were directly precipitated at low temperatures (<100°C) from a stoichiometric titanium acylate- barium acetate sol (pH > 13.5). Precursor powders obtained by hydrolytic decomposition of barium and titanium alkoxides were heat treated at 1100°C to obtain high purity, homogeneous, single phase BaTi₄O₉ powders. Atomistic pathways for the evolution of crystalline phases from amorphous gels and powders were investigated. The microstructure and electrical properties of sintered BaO-TiO₂ ceramics were studied and correlated with the powder processing conditions. The structures of crystalline and amorphous forms of some materials in the BaO-TiO₂ system were simulated using molecular dynamics computer techniques to develop a fundamental understanding of structure-property relationships for BaTiO₃ and TiO₂ containing glasses.
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| 332 |
Hybrid polyorganosiloxane - silicate materialsSoubhi, S. January 1982 (has links)
No description available.
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| 333 |
Sol-gel routes into high Tâ†c ceramic superconductorsTweed, Jonathan Daryl January 1997 (has links)
No description available.
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| 334 |
The effect of Batch Redox number on glass meltingHulme, R. January 1988 (has links)
No description available.
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| 335 |
Cracking of laminated glass initiated by low velocity impactsCoward, David Paul January 2001 (has links)
No description available.
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| 336 |
Studies of glass structure by neutron scatteringHulme, Robert Alexander January 1991 (has links)
No description available.
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| 337 |
Routes to improving inter-grain contact in high temperature superconductorsBoardman, C. J. January 1994 (has links)
No description available.
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| 338 |
An investigation into the interface development in solid state reaction bonded platinum/yttria - stabilised tetragonal zirconia polycrystal compositesPharaoh, Mark Wilson January 1989 (has links)
No description available.
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| 339 |
The evidence of oriental ceramic and earthenware distributions in Brunei Darussalam as an aid in understanding protohistoric BruneiPengiran Haji Osman/Othman, Pengiran Karim January 1997 (has links)
No description available.
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| 340 |
The chemistry of a novel silver controlled release glassCarpenter, Christopher Neil January 1996 (has links)
No description available.
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