Scalable Production of Boron Nitride-Coated Carbon Fiber Fabrics for Improved Oxidation Resistance

dc.authorid0000-0003-0042-5044
dc.authorid0000-0002-1526-803X
dc.authorid0000-0001-7163-3284
dc.authorid0000-0002-3068-172X
dc.authorid0000-0003-4670-8496
dc.authorid0000-0001-6676-110X
dc.authorid0000-0002-8109-7961
dc.authorid0000-0002-5922-5488
dc.contributor.authorYıldırım Elçin; Cennet
dc.contributor.authorArık; Muhammet Nasuh
dc.contributor.authorÖrs; Kaan
dc.contributor.authorNakaş; Uğur
dc.contributor.authorYakışık Özgüle; Zeliha Bengisu
dc.contributor.authorAcar; Özden
dc.contributor.authorAslanlar; Salim
dc.contributor.authorAltay; Özkan
dc.contributor.authorÇelik; Erdal
dc.contributor.authorŞahin; Korhan
dc.date.accessioned2025-10-27T13:20:16Z
dc.date.available2025-10-27T13:20:16Z
dc.date.issued2025-10-14
dc.departmentTENMAK-Bor Araştırma Enstitüsü
dc.description.abstractThis study aimed to develop an industrially scalable coating route for enhancing the oxidation resistance of carbon fiber fabrics, a critical requirement for next-generation aerospace and high-temperature composite structures. To achieve this goal, synthesis of hexagonal boron nitride (h-BN) layers was achieved via a single wet step in which the fabric was impregnated with an ammonia–borane/THF solution and subsequently nitrided for 2 h at 1000–1500 ◦C in flowing nitrogen. Thermogravimetric analysis coupled with X-ray diffraction revealed that amorphous BN formed below ≈1200 ◦C and crystallized completely into (002)-textured h-BN (with lattice parameters a ≈ 2.50 Å and c ≈ 6.7 Å) once the dwell temperature reached ≥1300 ◦C. Complementary XPS, FTIR and Raman spectroscopy confirmed a near-stoichiometric B:N ≈ 1:1 composition and the elimination of O–H/N–H residues as crystallinity improved. Low-magnification SEM (100×) confirmed the uniform and large-area coverage of the BN layer on the carbon fiber tows, while high-magnification SEM revealed a progressive densification of the coating from discrete nanospheres to a continuous nanosheet barrier on the fibers. Oxidation tests in flowing air shifted the onset of mass loss from 685 ◦C for uncoated fibers to 828 ◦C for the coating produced at 1400 ◦C; concurrently, the peak oxidation rate moved ≈200 ◦C higher and declined by ~40%. Treatment at 1500 ◦C conferred no additional benefit, indicating that 1400 ◦C provides the optimal balance between full crystallinity and limited grain coarsening. The resulting dense h-BN film, aided by an in situ self-healing B2O3 glaze above ~800 ◦C, delayed carbon fiber oxidation by ≈140 ◦C. Overall, the process offers a cost-effective, large-area alternative to vapor-phase deposition techniques, positioning BN-coated carbon fiber fabrics for robust service in extreme oxidative environments.
dc.identifier.doi10.3390/jcs9100564
dc.identifier.urihttps://kurumsalarsiv.tenmak.gov.tr/handle/20.500.12878/2080
dc.institutionauthorYıldırım Elçin, Cennet
dc.institutionauthorArık, Muhammet Nasuh
dc.institutionauthorYakışık Özgüle, Zeliha Bengisu
dc.institutionauthorAcar, Özden
dc.language.isoen
dc.publisherMDPI
dc.relation.journalJournal of Composites Science
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectcarbon fiber oxidation protection
dc.subjectcarbon fiber coating
dc.subjectscalable hexagonal boron nitride coating
dc.subjectcarbon fiber dip coating
dc.titleScalable Production of Boron Nitride-Coated Carbon Fiber Fabrics for Improved Oxidation Resistance
dc.typearticle
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