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Documents in the NTIS Technical Reports collection are the results of federally funded research. They are directly submitted to or collected by NTIS from Federal agencies for permanent accessibility to industry, academia and the public.  Before purchasing from NTIS, you may want to check for free access from (1) the issuing organization's website; (2) the U.S. Government Printing Office's Federal Digital System website; (3) the federal government Internet portal; or (4) a web search conducted using a commercial search engine such as
Accession Number ADA564033
Title Nanostructured Ceramics Obtained Under Extreme Conditions of Pressure and Temperature.
Publication Date Nov 2011
Media Count 15p
Personal Author M. R. Gallas
Abstract In this project we introduced a new approach to obtain nanostructured organic-inorganic ceramic materials using the sol-gel method combined with high-pressure technique to produce ceramics with multifunctional properties. We investigated hybrid nanostructured materials, exploring alumina, zirconia and silica systems using carbon nanotubes (CNTs) as nanofibers reinforcements. The main challenge in CNTs- reinforced ceramic nanocomposites is the uniform dispersion of CNTs into the ceramic matrix and to obtaining a good interface between the CNTs and the matrix. This step is fundamental and we were able to achieve that. It was produced powders of nanocomposite materials of CNT/ alumina and CNT/zirconia. This materials and its applications are the subject of two PhD Thesis, that should be finished by the middle of 2012. several works were already published on this matter and some were presented in International Meetings.
Keywords Alumina
Aluminum compounds
Carbon nanotubes
Ceramic matrix composites
Foreign reports
High pressure
Homogeneous dispersion
Sol gel
Zirconium compounds

Source Agency Non Paid ADAS
NTIS Subject Category 71D - Ceramics, Refractories, & Glass
71F - Composite Materials
Corporate Author Universidade Federal do Rio Grande do Sul, Porto Alegre (Brazil). Inst. de Fisica.
Document Type Technical report
Title Note Final rept. Sep 2008-Sep 2011.
NTIS Issue Number 1302
Contract Number FA9550-08-1-0426

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