2026-04-22T16:41:49Zhttps://riubu.ubu.es/oai/request

oai:riubu.ubu.es:10259/57772024-07-25T07:25:41Zcom_10259_9476com_10259.4_106com_10259_2604col_10259_9477

Novel processing route for the fabrication of bulk high-entropy metal diborides Tallarita, Giovanna Licheri, Roberta Garroni, Sebastiano Orrù, Roberto Cao, Giacomo High-entropy ceramics Borides Spark Plasma Sintering Self-propagating High-temperature Synthesis X-ray diffraction (XRD) A single high-entropy phase material with hexagonal structure is produced by a two-steps processing method. Elemental reactants are first remarkably converted by Self-propagating High-temperature Synthesis (SHS). The completion of the chemical transformation to the desired (Hf0.2Mo0.2Ta0.2Nb0.2Ti0.2)B2 phase and its concurrent consolidation up to 92.5% relative density is achieved by processing the SHS powders at 1950 °C via Spark Plasma Sintering. It is clearly evidenced that the use of the SHS technique is extremely beneficial to promote the formation of high-entropy ceramics, as compared to the time consuming ball milling treatment alternatively adopted. 2021-05-21T11:31:34Z 2021-05-21T11:31:34Z 2021-05-21T11:31:34Z 2019-01 info:eu-repo/semantics/article 1359-6462 http://hdl.handle.net/10259/5777 10.1016/j.scriptamat.2018.08.039 eng Scripta Materialia. 2019, V. 158, p. 100-104 https://doi.org/10.1016/j.scriptamat.2018.08.039 http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess Attribution-NonCommercial-NoDerivatives 4.0 Internacional Elsevier