Alan T Berry

Author:

Alan Percival Berry

ISBN #:

0950245410

US Patent:

6649091, Nov 18, 2003

Filed:

Sep 19, 2001

Appl. No.:

09/955022

Inventors:

Joseph V. Ryan - Aurora OH
Celia I. Merzbacher - Alexandria VA
Alan D. Berry - Springfield VA
Debra R. Rolison - Arlington VA
Jeffery W. Long - Alexandria VA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

H01B 108

US Classification:

2525213, 423 22, 423592

Abstract:

An electrically conducting composite is made by providing an aerogel structure of nonconducting material, exposing the aerogel structure to a mixture of RuO and a nonpolar solvent in an inert atmosphere, wherein the mixture is held initially at a first temperature that is below the temperature at which RuO decomposes into RuO in the nonpolar solvent and in the presence of the aerogel, and allowing the mixture to warm to a second temperature that is above the temperature at which RuO decomposes to RuO in the nonpolar solvent and in the presence of the aerogel, wherein the rate of warming is controlled so that as the mixture warms and the RuO begins to decompose into RuO , the newly formed RuO is deposited throughout the aerogel structure as a three-dimensionally networked conductive deposit.

US Patent:

62908804, Sep 18, 2001

Filed:

Dec 1, 1999

Appl. No.:

9/452378

Inventors:

Joseph V. Ryan - Aurora OH
Celia I. Merzbacher - Alexandria VA
Alan D. Berry - Springfield VA
Debra R. Rolison - Arlington VA
Jeffery W. Long - Alexandria VA

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

H01B 114
C01B 5500

US Classification:

2525181

Abstract:

An electrically conducting composite is made by providing an aerogel structure of nonconducting material, exposing the aerogel structure to a mixture of RuO. sub. 4 and a nonpolar solvent in an inert atmosphere, wherein the mixture is held initially at a first temperature that is below the temperature at which RuO. sub. 4 decomposes into RuO. sub. 2 in the nonpolar solvent and in the presence of the aerogel, and allowing the mixture to warm to a second temperature that is above the temperature at which RuO. sub. 4 decomposes to RuO. sub. 2 in the nonpolar solvent and in the presence of the aerogel, wherein the rate of warming is controlled so that as the mixture warms and the RuO. sub. 4 begins to decompose into RuO. sub. 2, the newly formed RuO. sub.