Tribological behavior of Polycrystalline diamond – Tantalum composites

Autor:	Diego Pires Gurgel, Meysam Mashhadikarimi, Regina Bertília Dantas de Medeiros, Lucas Pires de Paiva Barreto, Uilame Umbelino Gomes, Marcello Filgueira
Rok vydání:	2022
Předmět:	Materials science chemistry Powder metallurgy Abrasive Composite number Tantalum Sintering chemistry.chemical_element General Medicine Penetration (firestop) Crystallite Composite material Tribology
Zdroj:	International Journal of Refractory Metals and Hard Materials. 102:105711
ISSN:	0263-4368
DOI:	10.1016/j.ijrmhm.2021.105711
Popis:	Tribological performance of polycrystalline diamond‑tantalum (PCD-Ta) composites manufactured by powder metallurgy and HPHT sintering was studied. Different PCD/Ta concentrations were prepared and tested in a pin-on-disc configuration. The tribological interactions were investigated through depths of penetration, Coefficients of Friction (CoF), wear rates, and microstructural evaluation of pairs. The overall results indicated that tantalum percentage directly influenced the tribological behavior of composite pairs, and higher wear performance was observed in samples with lower binder content. Furthermore, microstructural analyses revealed that all pairs exhibited abrasive and adhesive wear mechanisms, and their intensities were closely dependent on the Ta concentration.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2add46643a89ce99425ec5c175c064e2 https://doi.org/10.1016/j.ijrmhm.2021.105711 Zobrazit plný text záznamu Full Text from ScienceDirect