Spark plasma sintering of Nb/Ti3Al(Si)C2-TiC laminated composites / E. B. Kashkarov, D. G. Krotkevich, A. V. Abdulmenova [et al.]

Уровень набора: MaterialiaАльтернативный автор-лицо: Kashkarov, E. B., Physicist, Associate Professor, Researcher of Tomsk Polytechnic University, Candidate of Physical and Mathematical Sciences, 1991-, Egor Borisovich;Krotkevich, D. G., physicist, engineer of Tomsk Polytechnic University, 1990-, Dmitry Georgievich;Abdulmenova, A. V., Anastasiya Vladimirovna;Ivashutenko, A. S., specialist in the field of electrical engineering, Associate Professor of the Tomsk Polytechnic University, Candidate of technical sciences, 1981-, Alexander Sergeevich;Perevislov, S. N., Sergey Nikolaevich;Lider, A. M., Physicist, Professor of Tomsk Polytechnic University, Doctor of Technical Sciences, 1976-, Andrey Markovich;Travitsky (Travitzky), N., specialist in the field of material science, Professor of Tomsk Polytechnic University, 1951-, NakhumКоллективный автор (вторичный): Национальный исследовательский Томский политехнический университет, Инженерная школа энергетики, Отделение электроэнергетики и электротехники;Национальный исследовательский Томский политехнический университет, Инженерная школа ядерных технологий, Отделение экспериментальной физикиЯзык: английский.Страна: .Резюме или реферат: This work describes novel Nb/Ti3Al(Si)C2-TiC laminated composites fabricated by spark plasma sintering (SPS) at 1250 °C, 50 MPa for 5 min. Preceramic papers filled with Ti3Al(Si)C2 MAX-phase and Nb foils were used as feedstock. Microstructure, phase composition and mechanical properties were evaluated by scanning electron microscopy, X-ray diffraction and three-point bending test, respectively. It was found that the reaction of preceramic paper-derived layers with Nb layers results in the formation of 16.5 µm-thick interlayers mainly composed of columnar Nb-Al intermetallic, Ti-Nb-Si and Nb-Si based phases. The laminated composites showed a brittle-ductile fracture behavior characterized by multiple deflection and branching of cracks at interfaces and plastic deformation of Nb layers. Crack deflection and delamination occur mainly near the interface between the reaction layer and ceramic layer due to the presence of more brittle silicide and carbide phases. The flexural strength of the fabricated composites was ~350 MPa at 1.5% strain..Примечания о наличии в документе библиографии/указателя: [References: 41 tit.].Аудитория: .Тематика: электронный ресурс | труды учёных ТПУ | preceramic paper | laminated composites | spark plasma sintering | MAX phases | microstructure | прекерамические бумаги | ламинированные композиты Ресурсы он-лайн:Щелкните здесь для доступа в онлайн
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[References: 41 tit.]

This work describes novel Nb/Ti3Al(Si)C2-TiC laminated composites fabricated by spark plasma sintering (SPS) at 1250 °C, 50 MPa for 5 min. Preceramic papers filled with Ti3Al(Si)C2 MAX-phase and Nb foils were used as feedstock. Microstructure, phase composition and mechanical properties were evaluated by scanning electron microscopy, X-ray diffraction and three-point bending test, respectively. It was found that the reaction of preceramic paper-derived layers with Nb layers results in the formation of 16.5 µm-thick interlayers mainly composed of columnar Nb-Al intermetallic, Ti-Nb-Si and Nb-Si based phases. The laminated composites showed a brittle-ductile fracture behavior characterized by multiple deflection and branching of cracks at interfaces and plastic deformation of Nb layers. Crack deflection and delamination occur mainly near the interface between the reaction layer and ceramic layer due to the presence of more brittle silicide and carbide phases. The flexural strength of the fabricated composites was ~350 MPa at 1.5% strain.

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