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Title: Method for net-shaping using aerogels

Abstract

A method of net-shaping using aerogel materials is provided by first forming a sol, aging the sol to form a gel, with the gel having a fluid component and having been formed into a medium selected from the group consisting of a powder, bulk material, or granular aerobeads, derivatizing the surface of the gel to render the surface unreactive toward further condensation, removing a portion of the fluid component of the final shaped gel to form a partially dried medium, placing the medium into a cavity, wherein the volume of said medium is less that the volume of the cavity, and removing a portion of the fluid component of the medium. The removal, such as by heating at a temperature of approximately less than 50.degree. C., applying a vacuum, or both, causes the volume of the medium to increase and to form a solid aerogel. The material can be easily removed by exposing the material to a solvent, thereby reducing the volume of the material. In another embodiment, the gel is derivatized and then formed into a shaped medium, where subsequent drying reduces the volume of the shaped medium, forming a net-shaping material. Upon further drying, the material increases inmore » volume to fill a cavity. The present invention is both a method of net-shaping and the material produced by the method.« less

Inventors:
 [1];  [1];  [1];  [2];  [3]
  1. (Albuquerque, NM)
  2. (Indianapolis, IN)
  3. (Tulsa, OK)
Issue Date:
Research Org.:
SANDIA CORP
OSTI Identifier:
873840
Patent Number(s):
6258305
Assignee:
Sandia Corporation (Albuquerque, NM) SNL
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; net-shaping; aerogels; aerogel; materials; provided; forming; sol; aging; form; fluid; component; formed; medium; selected; consisting; powder; bulk; material; granular; aerobeads; derivatizing; surface; render; unreactive; condensation; removing; portion; final; shaped; partially; dried; placing; cavity; volume; removal; heating; temperature; approximately; 50; degree; applying; vacuum; causes; increase; solid; easily; removed; exposing; solvent; reducing; embodiment; derivatized; subsequent; drying; reduces; increases; fill; produced; material produced; easily removed; bulk material; fluid component; material increases; aerogel material; aerogel materials; /264/

Citation Formats

Brinker, C. Jeffrey, Ashey, Carol S., Reed, Scott T., Sriram, Chunangad S., and Harris, Thomas M. Method for net-shaping using aerogels. United States: N. p., 2001. Web.
Brinker, C. Jeffrey, Ashey, Carol S., Reed, Scott T., Sriram, Chunangad S., & Harris, Thomas M. Method for net-shaping using aerogels. United States.
Brinker, C. Jeffrey, Ashey, Carol S., Reed, Scott T., Sriram, Chunangad S., and Harris, Thomas M. Mon . "Method for net-shaping using aerogels". United States. https://www.osti.gov/servlets/purl/873840.
@article{osti_873840,
title = {Method for net-shaping using aerogels},
author = {Brinker, C. Jeffrey and Ashey, Carol S. and Reed, Scott T. and Sriram, Chunangad S. and Harris, Thomas M.},
abstractNote = {A method of net-shaping using aerogel materials is provided by first forming a sol, aging the sol to form a gel, with the gel having a fluid component and having been formed into a medium selected from the group consisting of a powder, bulk material, or granular aerobeads, derivatizing the surface of the gel to render the surface unreactive toward further condensation, removing a portion of the fluid component of the final shaped gel to form a partially dried medium, placing the medium into a cavity, wherein the volume of said medium is less that the volume of the cavity, and removing a portion of the fluid component of the medium. The removal, such as by heating at a temperature of approximately less than 50.degree. C., applying a vacuum, or both, causes the volume of the medium to increase and to form a solid aerogel. The material can be easily removed by exposing the material to a solvent, thereby reducing the volume of the material. In another embodiment, the gel is derivatized and then formed into a shaped medium, where subsequent drying reduces the volume of the shaped medium, forming a net-shaping material. Upon further drying, the material increases in volume to fill a cavity. The present invention is both a method of net-shaping and the material produced by the method.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {1}
}

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