2016
DOI: 10.1016/j.ceramint.2016.05.195
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On the mechanical properties and microstructure of zirconia-reinforced feldspar-based porcelain

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Cited by 27 publications
(4 citation statements)
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“…The increase in mechanical properties, such as flexural strength and fracture toughness in vitroceramics reinforced with zirconia particles has been reported [11], also has been found that there is an increase in flexural strength with addition of alumina (Al 2 O 3 ) in feldspathic porcelain [12,13]. Despite of this mechanical improvements, an opaque color was found under both conditions, which reduces the aesthetics of the porcelain.…”
Section: Introductionmentioning
confidence: 84%
See 1 more Smart Citation
“…The increase in mechanical properties, such as flexural strength and fracture toughness in vitroceramics reinforced with zirconia particles has been reported [11], also has been found that there is an increase in flexural strength with addition of alumina (Al 2 O 3 ) in feldspathic porcelain [12,13]. Despite of this mechanical improvements, an opaque color was found under both conditions, which reduces the aesthetics of the porcelain.…”
Section: Introductionmentioning
confidence: 84%
“…From this figure, it is possible to analyze the microstructure from 0 up to 2.5% (wt%) of Al 2 O 3 -3Y-TZP particles. The observations indicated the presence of 3Y-TZP, Al 2 O 3 particles or leucite phases in white contrast and the amorphous phase in dark contrast [11]. It also shows the interface, showing a good adhesion between the veneering and the substrate (red box).…”
Section: Visual and Microscopic Characterizationmentioning
confidence: 93%
“…Various methods also have been reported to improve the mechanical strength and electrical conductivity of the composites. Santos et al [12] analyzed the influence of yttria-stabilized tetragonal zirconia polycrystal particles as a reinforcing phase on feldspar-based porcelains. They presented that the zirconia particles dispersed thoughtout the porcelain matrix can improve the strength and toughness of the porcelain.…”
Section: Introductionmentioning
confidence: 99%
“…Por outro lado, as próteses bilaminadas em zircônia apresentam pelo menos duas grandes desvantagens: alto índice de fratura por falhas catastróficas, especialmente pelo lascamento (chipping) da porcelana de cobertura (10)(11)(12) e a dificuldade de estabelecer união confiável e durável aos cimentos resinosos, em razão, principalmente, da alta estabilidade química da superfície da zircônia (13)(14)(15) . A falta de união químico-mecânica pode trazer consequências a longo prazo como a infiltração marginal e o descolamento da restauração.…”
Section: Lista De Figurasunclassified