Niobium as a new binder for polycrystalline diamond (PCD) sintered via High Pressure-High Temperature (HPHT)

dc.creatorMashhadikarimi, Meysam
dc.creatorGurgel, Diego Pires
dc.creatorRodrigues, Mayara Adrielly Leal de Oliveira
dc.creatorBarreto, Lucas Pires de Paiva
dc.creatorFilgueira, Marcello
dc.creatorGomes, Uílame Umbelino
dc.creatorBichler, Lukas
dc.date2021-08-20T14:40:47Z
dc.date2020-08
dc.identifierGURGEL, Diego Pires; RODRIGUES, Mayara Adrielly Leal de Oliveira; MASHHADIKARIMI, Meysam; BARRETO, Lucas Pires de Paiva; FILGUEIRA, Marcello; BICHLER, Lukas; GOMES, Uílame Umbelino. Niobium as a new binder for polycrystalline diamond (PCD) sintered via High Pressure-High Temperature (HPHT). International Journal Of Refractory Metals And Hard Materials, [S.L.], v. 90, p. 105234, ago. 2020. Disponível em: https://www.sciencedirect.com/science/article/abs/pii/S0263436820301104?via%3Dihub. Acesso em: 26 mar. 2021. http://dx.doi.org/10.1016/j.ijrmhm.2020.105234.
dc.identifier0263-4368
dc.identifierhttps://repositorio.ufrn.br/handle/123456789/33226
dc.identifier10.1016/j.ijrmhm.2020.105234
dc.descriptionIn this research, the effect of adding 2.5, 5.0 and 10 wt% niobium (Nb) as a binding agent was investigated for High Pressure-High Temperature (HPHT) sintering of polycrystalline diamond (PCD). Samples were sintered at 1750 °C and 7.7 GPa. Detailed characterization of the as-sintered materials revealed a uniform dispersion of the Nb additives in the diamond matrix and no interfacial cracking was observed. Higher concentration of binder increased tendency to intergranular failure. The formation of NbC and NbC0.84 phases after sintering was identified, indicating that some of the matrix carbon may have undergone graphitization
dc.description2026-10
dc.languageen
dc.publisherElsevier
dc.subjectPolycrystalline diamond
dc.subjectPCD
dc.subjectNiobium binder
dc.subjectHigh Pressure-High Temperature sintering
dc.subjectGraphitization
dc.titleNiobium as a new binder for polycrystalline diamond (PCD) sintered via High Pressure-High Temperature (HPHT)
dc.typearticle


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