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Influence of non-reactive particles on the microstructure of NiAl and NiAl–ZrO2 processed by thermal explosion

“…6A). This behaviour is characteristic of a strong interfacial bonding between ceramic and intermetallic particles [10,21]. Similar observations were made on NiAl-6PSZ where the slight mechanical improvement obtained after a post-SHS treatment, compared to the intermetallic achieved under the same conditions, can be attributed to the transgranular fracture mode and the fine grain size distribution of NiAl.…”

“…Most of the conventional processing approaches used for the fabrication of metal alloys, such as hot isostatic pressing [10] or casting [11], were employed for the production of nickel aluminide. Since this compound presents a high negative enthalpy of formation (DH ¼ À59 to À72 kJ/mol, depending on the stoichiometry [12]), it can also be synthesized by SHS.…”