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Title: Passive absolute age and temperature history sensor

Abstract

A passive sensor for historic age and temperature sensing, including a first member formed of a first material, the first material being either a metal or a semiconductor material and a second member formed of a second material, the second material being either a metal or a semiconductor material. A surface of the second member is in contact with a surface of the first member such that, over time, the second material of the second member diffuses into the first material of the first member. The rate of diffusion for the second material to diffuse into the first material depends on a temperature of the passive sensor. One of the electrical conductance, the electrical capacitance, the electrical inductance, the optical transmission, the optical reflectance, or the crystalline structure of the passive sensor depends on the amount of the second material that has diffused into the first member.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1225730
Patent Number(s):
9,182,436
Application Number:
13/711,457
Assignee:
Sandia Corporation
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2012 Dec 11
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Robinson, Alex, and Vianco, Paul T. Passive absolute age and temperature history sensor. United States: N. p., 2015. Web.
Robinson, Alex, & Vianco, Paul T. Passive absolute age and temperature history sensor. United States.
Robinson, Alex, and Vianco, Paul T. Tue . "Passive absolute age and temperature history sensor". United States. https://www.osti.gov/servlets/purl/1225730.
@article{osti_1225730,
title = {Passive absolute age and temperature history sensor},
author = {Robinson, Alex and Vianco, Paul T.},
abstractNote = {A passive sensor for historic age and temperature sensing, including a first member formed of a first material, the first material being either a metal or a semiconductor material and a second member formed of a second material, the second material being either a metal or a semiconductor material. A surface of the second member is in contact with a surface of the first member such that, over time, the second material of the second member diffuses into the first material of the first member. The rate of diffusion for the second material to diffuse into the first material depends on a temperature of the passive sensor. One of the electrical conductance, the electrical capacitance, the electrical inductance, the optical transmission, the optical reflectance, or the crystalline structure of the passive sensor depends on the amount of the second material that has diffused into the first member.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {11}
}

Patent:

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