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Title: Reflective article having a sacrificial cathodic layer

Abstract

The present invention relates to reflective articles, such as solar mirrors, that include a sacrificial cathodic layer. The reflective article, more particularly includes a substrate, such as glass, having a multi-layered coating thereon that includes a lead-free sacrificial cathodic layer. The sacrificial cathodic layer includes at least one transition metal, such as a particulate transition metal, which can be in the form of flakes (e.g., zinc flakes). The sacrificial cathodic layer can include an inorganic matrix formed from one or more organo-titanates. Alternatively, the sacrificial cathodic layer can include an organic polymer matrix (e.g., a crosslinked organic polymer matrix formed from an organic polymer and an aminoplast crosslinking agent). The reflective article also includes an outer organic polymer coating, that can be electrodeposited over the sacrificial cathodic layer.

Inventors:
; ; ; ; ;
Publication Date:
Research Org.:
Vitro, S.A.B. de C.V. Nuevo Leon, MX (Mexico)
Sponsoring Org.:
USDOE
OSTI Identifier:
1390230
Patent Number(s):
9,758,426
Application Number:
13/171,509
Assignee:
Vitro, S.A.B. de C.V. GFO
DOE Contract Number:
FC36-08GO18033
Resource Type:
Patent
Resource Relation:
Patent File Date: 2011 Jun 29
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Kabagambe, Benjamin, Buchanan, Michael J., Scott, Matthew S., Rearick, Brian K., Medwick, Paul A., and McCamy, James W. Reflective article having a sacrificial cathodic layer. United States: N. p., 2017. Web.
Kabagambe, Benjamin, Buchanan, Michael J., Scott, Matthew S., Rearick, Brian K., Medwick, Paul A., & McCamy, James W. Reflective article having a sacrificial cathodic layer. United States.
Kabagambe, Benjamin, Buchanan, Michael J., Scott, Matthew S., Rearick, Brian K., Medwick, Paul A., and McCamy, James W. Tue . "Reflective article having a sacrificial cathodic layer". United States. doi:. https://www.osti.gov/servlets/purl/1390230.
@article{osti_1390230,
title = {Reflective article having a sacrificial cathodic layer},
author = {Kabagambe, Benjamin and Buchanan, Michael J. and Scott, Matthew S. and Rearick, Brian K. and Medwick, Paul A. and McCamy, James W.},
abstractNote = {The present invention relates to reflective articles, such as solar mirrors, that include a sacrificial cathodic layer. The reflective article, more particularly includes a substrate, such as glass, having a multi-layered coating thereon that includes a lead-free sacrificial cathodic layer. The sacrificial cathodic layer includes at least one transition metal, such as a particulate transition metal, which can be in the form of flakes (e.g., zinc flakes). The sacrificial cathodic layer can include an inorganic matrix formed from one or more organo-titanates. Alternatively, the sacrificial cathodic layer can include an organic polymer matrix (e.g., a crosslinked organic polymer matrix formed from an organic polymer and an aminoplast crosslinking agent). The reflective article also includes an outer organic polymer coating, that can be electrodeposited over the sacrificial cathodic layer.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Sep 12 00:00:00 EDT 2017},
month = {Tue Sep 12 00:00:00 EDT 2017}
}

Patent:

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  • Disclosed is an improved dual layer anti-reflective coating for use in a photoresponsive semiconductor device, and a device incorporating the coating. The coating has a uniformly low parasitic absorbance in the range of about 475 to 600 nanometers. The dual layer has an incident light layer and an intermediate layer. The intermediate layer is formed of a silicon alloy material having at least one band gap widening element incorporated therein. The index of refraction of the intermediate layer has an index of refraction intermediate the indexes of the incident light layer and the underlying photoresponsive semiconductor device.
  • A reflective backing member has an array of closely spaced corner reflectors adjacent to the input surface of a layer of material that absorbs high energy radiation events and converts them to light photons. The corner reflective surface causes rearward traveling light photons to be reflected along a path substantially parallel to the initial rearward path so that the reflective member provides a high quality reflective surface with less degradation of spatial resolution of an image produced by the light photons than occurs with conventional reflective backing members.
  • Employing collector optics that has a sacrificial reflective surface can significantly prolong the useful life of the collector optics and the overall performance of the condenser in which the collector optics are incorporated. The collector optics is normally subject to erosion by debris from laser plasma source of radiation. The presence of an upper sacrificial reflective surface over the underlying reflective surface effectively increases the life of the optics while relaxing the constraints on the radiation source. Spatial and temporally varying reflectivity that results from the use of the sacrificial reflective surface can be accommodated by proper condenser design.
  • Employing collector optics that have a sacrificial reflective surface can significantly prolong the useful life of the collector optics and the overall performance of the condenser in which the collector optics are incorporated. The collector optics are normally subject to erosion by debris from laser plasma source of radiation. The presence of an upper sacrificial reflective surface over the underlying reflective surface effectively increases the life of the optics while relaxing the constraints on the radiation source. Spatial and temporally varying reflectivity that results from the use of the sacrificial reflective surface can be accommodated by proper condenser design.
  • A flow rate fiber optic transducer is made self-compensating for both temperature and pressure by using preferably well-matched integral Fabry-Perot sensors symmetrically located around a cantilever-like structure. Common mode rejection signal processing of the outputs allows substantially all effects of both temperature and pressure to be compensated. Additionally, the integral sensors can individually be made insensitive to temperature.