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 »
- Inventors:
-
- Albuquerque, NM
- Indianapolis, IN
- Tulsa, OK
- Publication Date:
- Research Org.:
- Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
- OSTI Identifier:
- 873840
- Patent Number(s):
- US 6258305
- Assignee:
- Sandia Corporation (Albuquerque, NM)
- 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. 2001.
"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 = {},
url = {https://www.osti.gov/biblio/873840},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon Jan 01 00:00:00 EST 2001},
month = {Mon Jan 01 00:00:00 EST 2001}
}