Accession Number : ADA256153


Title :   Ultrastructure Processing and Environmental Stability of Advanced Structural and Electronic Materials


Descriptive Note : Final rept. 1 Apr 1988-31 Jul 1992


Corporate Author : FLORIDA UNIV ALACHUA ADVANCED MATERIALS RESEARCH CENTER


Personal Author(s) : Hench, Larry L


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a256153.pdf


Report Date : 31 Aug 1992


Pagination or Media Count : 119


Abstract : The goals of this Multi-Investigator Research Program (MIRP) are: (1) achieve an understanding of the science of ultrastructure processing, and (2) apply the science of ultrastructure processing to produce new optical, electronic, optoelectronic, and structural materials. Ultrastructure processing refers to the manipulation and control of chemistry based processes to attain a new generation of high performance materials. Problem areas to benefit from ultrastructure processing include: advanced optical and opto-electronic systems, non-linear optical matrices, laser hosts, controlled particulates, transpiration cooled optics, effects of energetic particle beams, electronic behavior of high band gap semiconductors. Six projects are pursued. A cumulative list of the 60 papers published and 11 patents submitted during this contract is presented. A few papers from each project published during 1991-92 are presented. Project A: Sol-Gel Processing Science. Three papers describe the physical chemical factors and structural evolution and characterization of the sol-gel processing of large Si02 monoliths. Real time monitoring of the drying behavior of large silica gels is reported. A third paper reports on sol-gel derived titania-silica glasses with FTIR and structural characterization. glass, surfaces, optics, ultrastructure, infrared reflection spectroscopy, microstructure, gels, gel- glass transformation, processing, composites, silica, noise, powders, superlattices, metal organic precursors, drying, thermal.


Descriptors :   *PROCESSING , *COMPOSITE MATERIALS , *CERAMIC MATERIALS , *SILICA GLASS , *SILICA GELS , CONTROL , ELECTRONICS , METALS , OPTICS , MICROSTRUCTURE , CONTRACTS , AIR FORCE RESEARCH , ELECTROOPTICS , MONITORING , TIME , PHOTONICS , LASERS , REFLECTION , GLASS , SEMICONDUCTORS , OPTICAL MATERIALS , SUPERLATTICES , BIOCHEMISTRY , EYEGLASSES , PATENTS , PARTICLE BEAMS , TRANSFORMATIONS , PAPER , DRYING , GELS , BENEFITS , NOISE , BEHAVIOR , PARTICULATES , TRANSPIRATION , PARTICLES , CHEMISTRY , SURFACES , REAL TIME , SPECTROSCOPY , CHEMICALS , STRUCTURAL PROPERTIES , MATERIALS , POWDERS , PRECURSORS


Subject Categories : Inorganic Chemistry
      Electrooptical and Optoelectronic Devices
      Ceramics, Refractories and Glass
      Laminates and Composite Materials
      Optics


Distribution Statement : APPROVED FOR PUBLIC RELEASE