Accession Number:

ADA609452

Title:

Hierarchical Carbon Fibers with ZnO Nanowires for Volatile Sensing in Composite Curing (Postprint)

Descriptive Note:

Interim rept. 16 Apr 2012-2 Jun 2014

Corporate Author:

AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH STRUCTURAL MATERIALS DIV

Report Date:

2014-07-01

Pagination or Media Count:

15.0

Abstract:

Volatile management is critical to quality and consistent processing of polyimide composites. It remains difficult to measure and quantify volatiles evolved during curing, hampered by a dearth of small sensors and poor high temperature performance. Embedded sensors should be minimally parasitic and embedded within the composite in order to use for feedback during processing. For this work, we report on the foundational study needed to demonstrate the use of Zinc Oxide ZnO nanowire coated carbon fibers as a volatile sensor. ZnO nanowires are demonstrated to function as an ethanol sensor within a controlled environment. Growth of ZnO nanowires is shown, as well as the appropriate circuit to measure resistance. Results indicate that ZnO is a promising candidate and that relevant volatile concentrations can be measured.

Subject Categories:

  • Inorganic Chemistry
  • Electrical and Electronic Equipment
  • Refractory Fibers
  • Laminates and Composite Materials
  • Manufacturing and Industrial Engineering and Control of Production Systems
  • Miscellaneous Detection and Detectors

Distribution Statement:

APPROVED FOR PUBLIC RELEASE