Multi-phase (Zr,Ti,Me)B2 solid solutions: preparation and microstructure evolution
Autori
Silvestroni, LauraGilli, Nicola
Obradović, Nina
Filipović, Suzana
Watts, Jeremy L.
Fahrenholtz, William G.
Konferencijski prilog (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
ZrB2 is widely recognized as the most prominent ultra-high temperature ceramic for aerospace applications, in view of its melting point above 3000°C, and despite it exhibits lower oxidation and ablation resistance as compared to HfB2, it has a much lower density. The addition of TiB2 further lowers the overall weight, which is a relevant factor for materials intended to flight, but it also worsen the oxidation resistance. In this work, different Mecompounds, where Me = Nb, Hf, Cr, V, are added to the ZrB2-TiB2 system to study their effect on the densification, microstructure and thermo-mechanical properties. By adjusting the processing and sintering cycles, fully dense multi-phase ceramics with density in the 5.3-5.7 g/cm3 range and hardness close to 24 GPa have been obtained. A common feature to all materials, is the formation of solid solutions and microstructural details obtained by x-ray diffraction, scanning and electron microscopy are highlighted. Particularly, we explored the na...notexturing of the shell within micron-sized boride grains of the matrix, which resulted from the preferential precipitation of Me-compounds with poor solubility within ZrB2 or TiB2 lattice. Preliminary bending strength and oxidation behavior of these intricate bulk multiphase ceramics are also provided.
Ključne reči:
ZrB2 / multi-phase ceramics / microstructure evolution / TiB2Izvor:
Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022., 2022, 37-37Izdavač:
- Belgrade : Serbian Ceramic Society
Institucija/grupa
Институт техничких наука САНУ / Institute of Technical Sciences of SASATY - CONF AU - Silvestroni, Laura AU - Gilli, Nicola AU - Obradović, Nina AU - Filipović, Suzana AU - Watts, Jeremy L. AU - Fahrenholtz, William G. PY - 2022 UR - https://dais.sanu.ac.rs/123456789/13617 AB - ZrB2 is widely recognized as the most prominent ultra-high temperature ceramic for aerospace applications, in view of its melting point above 3000°C, and despite it exhibits lower oxidation and ablation resistance as compared to HfB2, it has a much lower density. The addition of TiB2 further lowers the overall weight, which is a relevant factor for materials intended to flight, but it also worsen the oxidation resistance. In this work, different Mecompounds, where Me = Nb, Hf, Cr, V, are added to the ZrB2-TiB2 system to study their effect on the densification, microstructure and thermo-mechanical properties. By adjusting the processing and sintering cycles, fully dense multi-phase ceramics with density in the 5.3-5.7 g/cm3 range and hardness close to 24 GPa have been obtained. A common feature to all materials, is the formation of solid solutions and microstructural details obtained by x-ray diffraction, scanning and electron microscopy are highlighted. Particularly, we explored the nanotexturing of the shell within micron-sized boride grains of the matrix, which resulted from the preferential precipitation of Me-compounds with poor solubility within ZrB2 or TiB2 lattice. Preliminary bending strength and oxidation behavior of these intricate bulk multiphase ceramics are also provided. PB - Belgrade : Serbian Ceramic Society C3 - Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022. T1 - Multi-phase (Zr,Ti,Me)B2 solid solutions: preparation and microstructure evolution SP - 37 EP - 37 UR - https://hdl.handle.net/21.15107/rcub_dais_13617 ER -
@conference{ author = "Silvestroni, Laura and Gilli, Nicola and Obradović, Nina and Filipović, Suzana and Watts, Jeremy L. and Fahrenholtz, William G.", year = "2022", abstract = "ZrB2 is widely recognized as the most prominent ultra-high temperature ceramic for aerospace applications, in view of its melting point above 3000°C, and despite it exhibits lower oxidation and ablation resistance as compared to HfB2, it has a much lower density. The addition of TiB2 further lowers the overall weight, which is a relevant factor for materials intended to flight, but it also worsen the oxidation resistance. In this work, different Mecompounds, where Me = Nb, Hf, Cr, V, are added to the ZrB2-TiB2 system to study their effect on the densification, microstructure and thermo-mechanical properties. By adjusting the processing and sintering cycles, fully dense multi-phase ceramics with density in the 5.3-5.7 g/cm3 range and hardness close to 24 GPa have been obtained. A common feature to all materials, is the formation of solid solutions and microstructural details obtained by x-ray diffraction, scanning and electron microscopy are highlighted. Particularly, we explored the nanotexturing of the shell within micron-sized boride grains of the matrix, which resulted from the preferential precipitation of Me-compounds with poor solubility within ZrB2 or TiB2 lattice. Preliminary bending strength and oxidation behavior of these intricate bulk multiphase ceramics are also provided.", publisher = "Belgrade : Serbian Ceramic Society", journal = "Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022.", title = "Multi-phase (Zr,Ti,Me)B2 solid solutions: preparation and microstructure evolution", pages = "37-37", url = "https://hdl.handle.net/21.15107/rcub_dais_13617" }
Silvestroni, L., Gilli, N., Obradović, N., Filipović, S., Watts, J. L.,& Fahrenholtz, W. G.. (2022). Multi-phase (Zr,Ti,Me)B2 solid solutions: preparation and microstructure evolution. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022. Belgrade : Serbian Ceramic Society., 37-37. https://hdl.handle.net/21.15107/rcub_dais_13617
Silvestroni L, Gilli N, Obradović N, Filipović S, Watts JL, Fahrenholtz WG. Multi-phase (Zr,Ti,Me)B2 solid solutions: preparation and microstructure evolution. in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022.. 2022;:37-37. https://hdl.handle.net/21.15107/rcub_dais_13617 .
Silvestroni, Laura, Gilli, Nicola, Obradović, Nina, Filipović, Suzana, Watts, Jeremy L., Fahrenholtz, William G., "Multi-phase (Zr,Ti,Me)B2 solid solutions: preparation and microstructure evolution" in Program and the Book of abstracts / Serbian Ceramic Society Conference Advanced Ceramics and Application X New Frontiers in Multifunctional Material Science and Processing, Serbia, Belgrade, 26-27. September 2022. (2022):37-37, https://hdl.handle.net/21.15107/rcub_dais_13617 .