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41. Pentavalent Uranium Oxide via Reduction of [UO^d2^]^u2+^ Under Hydrothermal Reaction Conditions
Topic: Ceramics
Published: 5/23/2008
Authors: Nebebech Belai, Mark Frisch, Eugene Ilton, Bruce D Ravel, Christopher Cahill
Abstract: The synthesis, crystal structure and spectroscopic characterization of [UV(H2O)2(UVIO2)2O4(OH)](H2O)4, a mixed-valent UV/UVI oxide material, are reported. The hydrothermal reaction of UO22+ with Zn and hydrazine at 120 °C for three days yields 1 in t ...

42. Deprotecting Thioacetyl-Terminated Terphenyldithiol for Assembly on Gallium Arsenide
Topic: Ceramics
Published: 5/8/2008
Authors: D Krapchetov, H Ma, AKY Jen, Daniel A Fischer, Y-L Loo
Abstract: We characterize the assembly of terphenyldithiol (TPDT) on gallium arsenide from ethanol (EtOH) and tetrahydrofuran (THF) as a function of ammonium hydroxide (NH4OH) concentration. NH4OH facilitates the conversion of thioacetyl end groups of the TPDT ...

43. Stability Phase-Fields in the and Pyrochlore Formation in Sections of the Bi^d2^O^d3^-Al^d2^O^d3-^Nb^d2^O^d5^
Topic: Ceramics
Published: 5/8/2008
Authors: Terrell A Vanderah, J Guzman, Juan C Nino
Abstract: Bismuth niobate-based ceramic materials are of interest for embedded elements such as capacitors, resonators, and filters because they exhibit high relative dielectric permittivities and tend to be processible at temperatures in the 1000 C to 1200 ...

44. Close Proximity Self-Aligned Shadow Mask for Sputter Deposition Onto a Membrane or Cavity
Topic: Ceramics
Published: 5/5/2008
Authors: Ravi Kummamuru, L Hu, Lawrence P. Cook, M Y Efremov, E A Olson, Martin L Green, L H Allen
Abstract: In this paper we report fabrication of a shadow mask designed for sputtering into cavities or on the back surface of freestanding silicon nitride (SiNx) membranes. Sputter deposition through a shadow mask typically results in spreading of the deposit ...

45. Pyrochlore Formation, Phase Relations, and Properties in the CaO-TiO^d2^-(Nb,Ta)^d2^O^d5^ Systems
Topic: Ceramics
Published: 4/23/2008
Authors: Terrell A Vanderah, Robert S. Roth, I E Grey, W G Mumme, P Bordet, Juan C Nino
Abstract: Ceramic dielectric materials based on complex titanates, niobates, and tantalates are important for a variety of components in communications systems. As part of ongoing studies of phase equilibria in this class of electroceramics, a determination o ...

46. Crystal Structure, Stoichiometry, and Dielectric Relaxation in Bi^d3.32^Nb^d7.09^O^d22.7^ and Structurally Related Ternary Phases
Topic: Ceramics
Published: 4/17/2008
Authors: I E Grey, Terrell A Vanderah, W G Mumme, Robert S. Roth, J Guzman, Juan C Nino, Igor Levin
Abstract: Ceramic materials which exhibit high relative dielectric permittivities and are processible at temperatures in the 1000 C to 1200 C range are of interest for embedded elements such as capacitor, resonators, and filters. Complex titanates, niobates ...

47. Effect of Ionic Substitution on the Structure and Dielectric Properties of Hafnia: A First Principles Study
Topic: Ceramics
Published: 4/15/2008
Author: Eric J Cockayne

48. Contact Fatigue of Silicon
Topic: Ceramics
Published: 4/1/2008
Authors: Sanjit Bhowmick, J Melendez-martinex, Brian Ronald Lawn

49. Dental Enamel as a Dietary Indicator in Mammals
Topic: Ceramics
Published: 4/1/2008
Authors: Peter Lucas, Paul Constantino, Bernard Wood, Brian Ronald Lawn

50. Determination of B-cation Chemical Short-Range Order in Perovskites from the Total Pair-Distribution Function
Topic: Ceramics
Published: 4/1/2008
Author: Victor Lvovich Krayzman

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