Sandia Corporation

New Mexico Tech Research Foundation

Ars Services, LLC

Deidre Hirschfeld

David P Adams

Dianna S Blair

W Kent Schubert

Joel McDonald

Curtis Rhodes

V Carter Hodges

Bradley Howell Jared

Chad S Watson

Christa Hockensmith

A method of pulsed laser intrinsic marking can provide a unique identifier to detect tampering or counterfeiting.

Method of intrinsic marking

A method of reducing or preventing the amount of iron sludge or precipitate that forms as a result of the recovery of silver from chemical solutions, such as a standard photographic solution. The method generally involves the introduction of a source of a conjugate organic base, such as a weak organic acid like citric acid or a salt of the conjugate organic base like a citrate salt, to the chemical fluid either before or during the silver recovery process. Preferably the source of conjugate organic base is introduced by combining it with a binder to form a time release cake or placing it in a container that has a semipermeable membrane that maintains the concentration of the conjugate organic base in the chemical fluid from about 0.2 to about 78 milimolar over a period of time.

Method for treating iron in a silver recovery process

A method is provided for anodically bonding glass and semiconducting material. A glass sample is immersed in a molten salt bath for a fixed period of time to modify the surface of the glass sample via ion exchange. The salt is a lithium salt or a proton source. After the glass sample is removed from the salt bath, the glass sample and semiconducting material are placed onto one another, and are then heated to a temperature of between 100&deg; C. and 500&deg; C. While at this temperature, a potential is applied across the glass and semiconducting material for a fixed period of time to effect anodic bonding together of the glass and semiconducting material.

Method for anodically bonding glass and semiconducting material together

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Socorro, NM, United States of America

Deidre Hirschfeld