RT journal article
T1 BN nanosheets reinforced zirconia composites: An in-depth microstructural and mechanical study
A1 Muñoz Ferreiro, C.
A1 Reveron, H.
A1 Rojas, T. C.
A1 Fernández de los Reyes, Daniel
A1 Cottrino, S.
A1 Moreno, P.
A1 Prada Rodrigo, J.
A1 Morales Rodríguez, A.
A1 Chevalier, J.
A1 Gallardo López, Á.
A1 Poyato, R.
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
K1 Boron nitride nanosheets
K1 Composite materials
K1 Interfaces
K1 R-curve
K1 Crack bridging
AB This paper deals with the effect of hydroxylated boron nitride nanosheets (BNNS) incorporation on the microstructural and mechanical features of zirconia ceramics. Few-layered BNNS were synthesized via a simplehydroxide-assisted planetary ball milling exfoliation technique. 3 mol% yttria tetragonal zirconia polycrystal(3Y-TZP) with 2.5 vol% BNNS powders were prepared by an environmentally friendly process in water, andspark-plasma sintered at three temperatures to explore the in-situ reduction of the functionalized BNNS. Anexhaustive study by (S)TEM techniques was performed to elucidate the influence of the sintering temperature onthe matrix and the 3Y-TZP/BNNS interfaces, revealing that BNNS were homogeneously distributed throughoutthe matrix with an abrupt transition at 3Y-TZP/BNNS interfaces. BNNS effectively hindered slow crack growth,thus increasing the composite’s crack growth resistance by about 30 %. A 1 MPa⋅m1/2 rising R-curve was alsoinduced by crack bridging.
PB Elsevier
SN 1873-619X
YR 2024
FD 2024-02-04
LK http://hdl.handle.net/10498/32733
UL http://hdl.handle.net/10498/32733
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 21-sep-2026