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Preparation and characterization of ZrB2-TiB2 based composites for hypersonic systems
dc.creator | Obradović, Nina | |
dc.creator | Filipović, Suzana | |
dc.creator | Gilli, N. | |
dc.creator | Silvestroni, L. | |
dc.date.accessioned | 2021-12-14T00:18:08Z | |
dc.date.available | 2021-12-14T00:18:08Z | |
dc.date.issued | 2021 | |
dc.identifier.isbn | 978-86-6060-077-8 | |
dc.identifier.uri | https://dais.sanu.ac.rs/123456789/12352 | |
dc.description.abstract | ZrB2 ceramics are considered potential materials for hypersonic systems in view of the melting point exceeding 3000 °C and excellent ablation resistance. Second phases, including SiC or CrB2, further improve the oxidation behavior, whereas a lighter phase, like TiB2 can decrease the overall weight. In this work, a powder mixture containing ZrB2, TiB2, CrB2 and SiC was mechanically activated using high energy ball-milling. Sintering was performed by hot pressing following different thermal cycles, and subsequent annealing to remove oxide phases and reduce micro-cracking. The microstructure and hardness of the dense ceramics are compared in relationship to the thermal history. Fully dense ceramics were obtained with different oxide-phases amount depending on the sintering cycle and hardness approaching 24 GPa were achieved. Future works will explore the strength and oxidation resistance of this multi-phase system to check its suitability for hypersonic systems. | sr |
dc.language.iso | en | sr |
dc.publisher | Belgrade : Innovation Center of Faculty of Mechanical Engineering | sr |
dc.relation | NATO project SPS G5767 - "Super Strong Ceramics for Protection in Harsh Environments and DefenCE" (SUSPENCE) | sr |
dc.rights | openAccess | sr |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | |
dc.source | Programme and The Book of Abstracts / International Conference of Experimental and Numerical Investigations and New Technologies - CNN TECH 2021,29 June - 02 July 2021, Zlatibor, Serbia | sr |
dc.subject | mechanical activation | sr |
dc.subject | sintering | sr |
dc.subject | XRD | sr |
dc.subject | mechanical properties | sr |
dc.subject | ceramics | sr |
dc.title | Preparation and characterization of ZrB2-TiB2 based composites for hypersonic systems | sr |
dc.type | conferenceObject | sr |
dc.rights.license | BY | sr |
dc.citation.spage | 83 | |
dc.citation.epage | 83 | |
dc.type.version | publishedVersion | sr |
dc.identifier.fulltext | http://dais.sanu.ac.rs/bitstream/id/49191/Obradovic_CNNTech.pdf | |
dc.identifier.rcub | https://hdl.handle.net/21.15107/rcub_dais_12352 |