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Removing Hydroxypropyl Methylcellulose Sizing from Sapphire Fibers by Ultraviolet/Ozone Cleaning
Author(s) -
Jayne Douglas T.,
Matthiesen Mary M.
Publication year - 1995
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1995.tb08069.x
Subject(s) - materials science , x ray photoelectron spectroscopy , fiber , composite number , ultraviolet , sapphire , composite material , sizing , coating , chemical engineering , cellulose fiber , ozone , cellulose , hydroxypropyl cellulose , polymer , chemistry , organic chemistry , optoelectronics , optics , laser , physics , engineering
Ceramic‐fiber‐reinforced metallic and intermetallic matrix composites require well‐characterized fiber/matrix interfaces. These interfaces require that the fiber surface be clean prior to the formation of a composite or application of a fiber coating. This work investigates the effectiveness of ultraviolet (UV)/ozone exposure at removing hydroxypropyl methylcellulose sizing from sapphire plates and fibers. The surface cleanliness was characterized using X‐ray photoelectron spectroscopy (XPS). It was found that UV/ozone exposure removed the hydroxypropyl methyl‐cellulose sizing from the plates and fibers but did not remove inorganic species contained in the coating or on the sapphire surface. These inorganic species were readily removed with a water/methanol rinse, providing a clean sapphire surface for incorporation into a composite.