Thermal Control Materials and Technology in the 1970s

Abstract

IITRI’s more recent activities in the Research and Development of stable spacecraft thermal controls materials and systems are reviewed, and projections are made for the expected achievements in this and other fields. In addition to the need to solve a synergistic reaction between zinc orthotitanate and certain siloxane vehicles, an additional requirement—that such systems be non-contaminating and nonconlaminable has added an important, and difficult dimension to the development of these coalings/surfaces. In the paper the K&U of an ultrastable, low αs /ε paint consisting of zinc orthotitanate and a modified commercial silicone is described. Some of the applications and materials requirements for solar energy utilization are discussed. The special requirements of electro-conductive surfaces for reproduction and other uses are also briefly reviewed in light of applicable space thermophysics technology.