Degradation of mechanical and electrical properties after long-term oxidation and corrosion of non-oxide structural ceramic composites

Medri, Valentina; Bracisiewicz, M.; Krnel, Kristoffer; Winterhalter, Frederic; Bellosi, A.

doi:10.1016/j.jeurceramsoc.2004.12.002

Cited by 10 publications

(1 citation statement)

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“…However, a common drawback of ceramics is their intrinsic brittleness, which limits their utilization, particularly as thermostructural materials. To overcome this problem, it was demonstrated that the fabrication of continuous fiber‐reinforced ceramic composites (CFCCs) is the most effective alternative for development of nonbrittle ceramics 1–3 4 .…”

Section: Introductionmentioning

confidence: 99%

Structural and Mechanical Behavior of Boron Nitride Fibers Derived from Poly[(Methylamino)Borazine] Precursors: Optimization of the Curing and Pyrolysis Procedures

Toutois

Miele

Jacques

et al. 2005

Journal of the American Ceramic Society

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A series of boron nitride fibers were prepared by varying the tension applied on a same lot of poly(methylamino)borazine fibers during their pyrolytic conversion at 1800°C. Their microstructure/microtexture was studied by X‐ray diffraction, scanning electron microscopy, and transmission electron microscopy investigations. Such analyses showed that ceramic fibers presented good crystallinity, but crystallites oriented along the fiber axis with fiber stress. It is most interesting that stretching was essentially effective during the pyrolysis to 1000°C, preventing fiber crimping, and decreasing the fiber diameter. Therefore, the fiber strength increased, while the fiber modulus also increased because of an improvement of the basal layer orientation along the fiber axis.

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Section: Introductionmentioning

confidence: 99%