Development of Fluorescent Coatings for High Temperature Aerospace Applications

  • Hollerman W
  • Allison S
  • Beshears D
 et al. 
  • 6


    Mendeley users who have this article in their library.
  • N/A


    Citations of this article.


For many years, phosphor thermometry has been used for non-contact measurements in hostile high temperature environments, including large blackbody radiation backgrounds, vibration, rotation, fire/flame, pressure, or noise. Often these environments restrict the use of more common thermocouples or infrared thermometric techniques. In particular, temperature measurements inside jet turbines, rocket engines, or similar devices are especially amenable to fluorescence techniques. Often the fluorescent materials are used as powders, either suspended in binders and applied like paint or applied as high temperature sprays. These coatings will quickly assume the same temperature as the surface to which they are applied. The temperature dependence of fluorescent materials is a function of the base matrix atoms and a small quantity of added activator or “dopant” ions. Often for high temperature applications, the selected materials are refractory and include rare earth ions. Phosphors like Y3Al5O12 (YAG) doped with Eu, Dy, or Tm, Y2O3 doped with Eu, or similar rare earth compounds, will survive high temperatures and can be configured to emit light that changes rapidly in lifetime and intensity. For example, fluorescence from YAG:Dy and YAG:Tm was recently observed at temperatures above 1400 ºC at the Oak Ridge National Laboratory (ORNL) National Transportation Research Center (NTRC) in Tennessee. This paper will give research results applicable to the use of phosphors for thermometry purposes. Emphasis will be placed on using selected high temperature phosphor paints as a heat flux gauge.

Get free article suggestions today

Mendeley saves you time finding and organizing research

Sign up here
Already have an account ?Sign in

Find this document

There are no full text links


  • W A Hollerman

  • S W Allison

  • D L Beshears

  • R F Guidry

  • T J Bencic

  • C R Mercer

Cite this document

Choose a citation style from the tabs below

Save time finding and organizing research with Mendeley

Sign up for free