Microstructure and interfacial properties of laser ablation coated, fiber-reinforced ceramic composite

Dong Zhu, Helen Chung, Mohammad H. Jilavi, Waltraud M. Kriven

Research output: Contribution to journalConference articlepeer-review


Titania (TiO2), titanium aluminate (TiO2·Al2O3), and enstatite (MgSiO3) multilayer films were deposited on to a sapphire (Al2O3) fiber by the pulsed laser ablation technique using a KrF excimer laser. MgSiO3 was used for the debonding interphase, and TiO2 and TiO2·Al2O3 were used to protect MgSiO3 and Al2O3 from chemical reaction during processing and operation of composite. The composite was hot pressed by embedding coated fibers in Al2O3 matrix. SEM and EDS were used to analyze the microstructure and microcomposition of the coating layers before and after hot pressing. The partial decomposition of MgSiO3 to SiO2 glassy phase was observed during hot pressing. A push-out experiment was also conducted to determine interfacial properties of the hot pressed composite.

Original languageEnglish (US)
Pages (from-to)105-112
Number of pages8
JournalCeramic Engineering and Science Proceedings
Issue number3 A
StatePublished - 1997
EventProceedings of the 1997 21st Annual Conference on Composites, Advanced Ceramics, Materials, and Structures-B - Cocoa, FL, USA
Duration: Jan 12 1997Jan 16 1997

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry


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