Examination of novel electrosprayed biogenic hydroxyapatite coatings on Si3N4 and Si3N4 /MWCNT ceramic composite

Autor: Tamás Zagyva, Katalin Balázsi, Csaba Balázsi
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Processing and Application of Ceramics, Vol 13, Iss 2, Pp 132-138 (2019)
Druh dokumentu: article
ISSN: 1820-6131
2406-1034
DOI: 10.2298/PAC1902132Z
Popis: Novel hydroxyapatite coatings on Si3N4 and Si3N4/MWCNT ceramic substrates were deposited by electrospraying method for the first time. The aim of this study was to produce thin nano-hydroxyapatite (nHA) layer on silicon nitride (Si3N4) implant material with a cost-efficient electrospray deposition method. During the first experiments, continuous nHA layer could not form due to the high electrical resistance of the Si3N4 substrate. Therefore, the electrical conductivity of the Si3N4 substrate has been increased by the help of multiwall carbon nanotube (MWCNT) addition. As a result, ∼5 µm thick continuous and smooth nHA coating could have been realized successfully on the Si3N4/MWCNT composite.
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