Method of manufacture of copper-doped glasses

Patent metadata

Field	Value
Publication number	US-11028016-B2
Application number	US-201816156569-A
Country	US
Kind code	B2
Filing date	Oct 10, 2018
Priority date	Feb 19, 2016
Publication date	Jun 8, 2021
Grant date	Jun 8, 2021

Abstract

A method of making a copper-doped glass comprising placing a target glass in a container, placing a target glass in a container, surrounding the target glass with a powder mixture comprised of fused silica (SiO2) powder and copper sulfide (Cu2S) powder, such that both the target glass and the surrounding powder are contained in the container, and heating the container and the target glass and the surrounding powder mixture to a temperature of between 800° C. and 1150° C.

First claim

What we claim is:

1. A method of making a copper-doped glass comprising the steps of:
placing a target glass in a container;
surrounding the target glass with a powder mixture comprised of fused silica (SiO 2 ) powder and copper sulfide (Cu 2 S) powder, such that both the target glass and the surrounding powder are contained in the container;
wherein the powder mixture is comprised of a SiO 2 powder and Cu 2 S powder mixed according to the formula (SiO 2 ) (1-x) (Cu 2 S) x , where 0.01<x<0.1; and

heating the container and the target glass and the surrounding powder mixture to a temperature of between 800° C. and 1150° C.

2. The method of making a copper-doped glass of claim 1 wherein the powder mixture is
heated to a temperature of 1100° C. for about 5 hours, cooled to room temperature, and then reground after cooling.

3. The method of making a copper-doped glass of claim 1 wherein
the step of heating the container and the target glass and the surrounding powder mixture is performed for a duration of between 1 and 10 hours.

4. The method of making a copper-doped glass of claim 1 wherein the container is a fused quartz glass cylinder.

5. The method of making a copper-doped glass of claim 1
wherein the temperature of between 800° C. and 1150° C. is below the softening point of the target glass.

Assignees

• Us Gov Sec Navy

Inventors

• Justus Brian L
• Huston Alan L
• Marcheschi Barbara A

Classifications

• C03C21/008

  in solid phase, e.g. using pastes, powders · CPC title

• C03C2201/40

  containing transition metals other than rare earth metals, e.g. Zr, Nb, Ta or Zn · CPC title

• C03C4/12

  for luminescent glass; for fluorescent glass · CPC title

• C03C3/06

  with more than 90% silica by weight, e.g. quartz {(C03C3/045 takes precedence)} · CPC title

• C09K11/582

  Chalcogenides · CPC title