Main Administration
 
   Search   (Help)
  Go!
 
   Contact OCMS
 
   Abstract Help
 
   NEW Personal
     Scheduler
 
 
Instructions: Enter any of the following in the search box and then click "Go!": Any part of Conference, symposium, session, or abstract name/title; author first name or last name or both; any part of organization name; abstract presentation date.
 
 
 
 
 
Abstract Summary
 
 
 
Conference:   105th Annual Meeting & Exposition  
   Instructions
and
Links

 
Symposium:   20. Ceramic Matrix Composites
Session:   Geopolymer Composites - 1:00:00 PM - 5:00:00 PM 4/28/2003
Abs. Title:   Functional Low-Silica Activity Geopolymer Matrices for Ceramic Composites  
Abstract #:   7633  
 
 
 
 
Type:   Oral
Submitted:   4/11/2003 1:24:17 PM
Status:   Accepted
Scheduled?   Yes
Abstract:   Ceramatec, Inc. is currently performing a Phase I STTR project in collaboration with the University of Wisconsin-Madison to develop functional ceramic composite systems with good mechanical properties and high-temperature hydrothermal stability, typical of operating conditions expected in aircraft and stationary turbines and engines. The basic strategy is to select specific synthetic, geomimetic aluminosilicates with low silica activity, a prerequisite for high-temperature hydrothermal stability, as geopolymer precursors. Initial studies have targeted the effects of the extent of dissolution (alkali concentration), type of geopolymer precursor (starting aluminosilicate and activating alkali), secondary phase inclusions, and firing temperature on room-temperature compressive strength and hydrothermal stability of geopolymers. It has been demonstrated that the mean compressive strength can be improved by over a factor of 3 by optimization of the relative concentrations of the aluminosilicate and alkali in the reactant mixture, and geopolymer matrices with mean compressive strengths as high as »99 MPa have been fabricated. Initial studies on hydrothermal stability of the new geopolymer compositions have shown that the stability is strongly dependent on the specific alkali cation introduced into the gel phase during the geopolymerization reaction. It has also been shown that the mean compressive strength of the matrix is a strong function of the particle size and firing temperature.
 
 Abstract Author(s)
 
 
 1   Primary and Presenting   Balakrishnan Nair - 1007473
Organization   Ceramatec, Inc.
Phone #   801-956-1000
Fax #   801-972-1925
Professional Title   Principal Investigator
Street Address   2425 S. 900 West

City   Salt Lake City
State   UT
Country   United States
Postal Code   84119
 
 
 2   Co-Author   Duane Doyle - 1012036
Organization   Ceramatec, Inc.
Phone #  
Fax #  
Professional Title  
Street Address  

City   Salt Lake City
State   UT
Country   United States
Postal Code   84119
 
 
 3   Co-Author   Daniel Tinberg - 1012037
Organization   University of Wisconsin
Phone #  
Fax #  
Professional Title  
Street Address   Dept. of Materials Science & Engineering

City   Madison
State   WI
Country   United States
Postal Code   53706
 
 
 4   Co-Author   Reid Cooper - 1000298
Organization   University of Wisconsin-Madison
Phone #   (608) 262-1133
Fax #   (608) 262-8353
Professional Title   Professor
Street Address   1509 University Ave.
1509 University Ave.
City   Madison
State   WI
Province  
Country   United States
Postal Code   53706
 
 
   

 
Main Menu      Symposia List      Session List      Abstract List
 

Instructions:    To modify the text of this abstract or add or delete authors, click the 'Modify Abstract' button. To list the abstracts in the current session, the sessions in the current symposium, or the symposia in the current conference, click the appropriate link above these instructions.