Effect of cleaning and abrasion-induced damage on the room temperature tensile strength of sapphire fibers

E. R. Trumbauer, J. R. Hellman, D. L. Shelleman, D. A. Koss

Research output: Contribution to journalConference article

2 Citations (Scopus)

Abstract

Room temperature tensile strengths of sapphire fibers were evaluated in the as-received condition (Dow MethocellTM sizing applied by Saphikon), after flame cleaning, after cold water washing, and after a chemical cleaning procedure. Flame cleaning yielded an approximately 30% degradation in strength compared to the other surface treatments. Fractographic analysis revealed surface deposits at the failure origins of flame cleaned fibers; EDS analysis revealed the presence of Na, Cl, Ca, Fe, and Ce, impurities in the deposits. Tensile strengths were also evaluated for unsized fibers in the as-received condition, after flame cleaning, and after self-abrasion. Flame cleaning of unsized fibers yielded a less significant strength degradation than was observed for sized fibers and self-abrasion resulted in a 30% degradation in strength. Results indicate that use of sizing is imperative for preventing fiber damage during handling, but that improved procedures for sizing removal are required.

Original languageEnglish (US)
Pages (from-to)590-599
Number of pages10
JournalCeramic Engineering and Science Proceedings
Volume14
Issue number7 -8 pt 1
StatePublished - Jul 1 1993
EventProceedings of the 17th Annual Conference on Composites and Advanced Ceramic Materials - Cocoa Beach, FL, USA
Duration: Jan 10 1993Jan 15 1993

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Flame cleaning
Aluminum Oxide
Abrasion
Sapphire
Cleaning
Tensile strength
Fibers
Degradation
Temperature
Deposits
Chemical cleaning
Surface analysis
Washing
Surface treatment
Energy dispersive spectroscopy
Impurities
Water

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites
  • Materials Chemistry

Cite this

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title = "Effect of cleaning and abrasion-induced damage on the room temperature tensile strength of sapphire fibers",
abstract = "Room temperature tensile strengths of sapphire fibers were evaluated in the as-received condition (Dow MethocellTM sizing applied by Saphikon), after flame cleaning, after cold water washing, and after a chemical cleaning procedure. Flame cleaning yielded an approximately 30{\%} degradation in strength compared to the other surface treatments. Fractographic analysis revealed surface deposits at the failure origins of flame cleaned fibers; EDS analysis revealed the presence of Na, Cl, Ca, Fe, and Ce, impurities in the deposits. Tensile strengths were also evaluated for unsized fibers in the as-received condition, after flame cleaning, and after self-abrasion. Flame cleaning of unsized fibers yielded a less significant strength degradation than was observed for sized fibers and self-abrasion resulted in a 30{\%} degradation in strength. Results indicate that use of sizing is imperative for preventing fiber damage during handling, but that improved procedures for sizing removal are required.",
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Effect of cleaning and abrasion-induced damage on the room temperature tensile strength of sapphire fibers. / Trumbauer, E. R.; Hellman, J. R.; Shelleman, D. L.; Koss, D. A.

In: Ceramic Engineering and Science Proceedings, Vol. 14, No. 7 -8 pt 1, 01.07.1993, p. 590-599.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Effect of cleaning and abrasion-induced damage on the room temperature tensile strength of sapphire fibers

AU - Trumbauer, E. R.

AU - Hellman, J. R.

AU - Shelleman, D. L.

AU - Koss, D. A.

PY - 1993/7/1

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N2 - Room temperature tensile strengths of sapphire fibers were evaluated in the as-received condition (Dow MethocellTM sizing applied by Saphikon), after flame cleaning, after cold water washing, and after a chemical cleaning procedure. Flame cleaning yielded an approximately 30% degradation in strength compared to the other surface treatments. Fractographic analysis revealed surface deposits at the failure origins of flame cleaned fibers; EDS analysis revealed the presence of Na, Cl, Ca, Fe, and Ce, impurities in the deposits. Tensile strengths were also evaluated for unsized fibers in the as-received condition, after flame cleaning, and after self-abrasion. Flame cleaning of unsized fibers yielded a less significant strength degradation than was observed for sized fibers and self-abrasion resulted in a 30% degradation in strength. Results indicate that use of sizing is imperative for preventing fiber damage during handling, but that improved procedures for sizing removal are required.

AB - Room temperature tensile strengths of sapphire fibers were evaluated in the as-received condition (Dow MethocellTM sizing applied by Saphikon), after flame cleaning, after cold water washing, and after a chemical cleaning procedure. Flame cleaning yielded an approximately 30% degradation in strength compared to the other surface treatments. Fractographic analysis revealed surface deposits at the failure origins of flame cleaned fibers; EDS analysis revealed the presence of Na, Cl, Ca, Fe, and Ce, impurities in the deposits. Tensile strengths were also evaluated for unsized fibers in the as-received condition, after flame cleaning, and after self-abrasion. Flame cleaning of unsized fibers yielded a less significant strength degradation than was observed for sized fibers and self-abrasion resulted in a 30% degradation in strength. Results indicate that use of sizing is imperative for preventing fiber damage during handling, but that improved procedures for sizing removal are required.

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