Geopolymer Porous Nanoceramics for Structural Smart and Thermal Shock Resistant Applications

Abstract

We have continued our work to understand and elucidate the microstructure of geopolymers and geopolymer composites, as fabricated and upon conversion to ceramics with heating. The microstucture consisted of nanoporous, nanparticular precipitates and contains 40% nanoporosity of average diamter 6.8nm in the case of K-based geopolymer. The room temperature compressive strengths were systematically investigated as a function of Group I charge balancing cations (Na, K and Cs and mixtures of Na-K). Potential applications were explored in the area of refractory adhesives between metal, corrosiion resistant coatings on steel, glass and ceramics, porous membrances and foams, ceramic armore composites, iron-based geopolymer analogues, geopolymer composites reinforced with chopped polypropylene or basalt fibers and polycrystalline ceramics or glass-ceramics. The basic sciencxe of amorphous geopolymer structure was probed down to the Angstrom level by state of the air Pair Distribution Function analysis (PDF) of X-ray synchrotron data.

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Document Details

Document Type
Technical Report
Publication Date
Feb 02, 2011
Accession Number
ADA547557

Entities

People

  • Waltraud M. Kriven

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Ceramic Matrix Composites
  • Chemistry
  • Composite Materials
  • Compressive Strength
  • Distribution Functions
  • Material Degradation Processes
  • Materials
  • Materials Laboratories
  • Materials Processing
  • Materials Science
  • Mechanical Properties
  • Microstructure
  • Silicates
  • Strategic Materials
  • Technical Ceramics
  • Thermal Shock
  • X Rays

Fields of Study

  • Materials science

Readers

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