Particulate-fibre-reinforced glass matrix hybrid composites

Gadkaree, K. P.

doi:10.1007/bf00545465

Cited by 23 publications

(13 citation statements)

References 7 publications

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“…The mechanical behaviour is significantly improved probably owing to the presence of Zr02 particles in the matrix. According to Gadkaree (1992), the hybridization of fibre-reinforced glass matrix composites with particular fillers substantially increases microcrack yield stress and strain, interlaminar shear strength and transverse strength. This behaviour is supported by the friction-hindered sliding of the fibres out of the matrix which is possible for appropriate graphitic layers.…”

Section: Acknowledgmentsmentioning

confidence: 99%

Nanostructure of interlayers in different Nicalon fibre/glass matrix composites and their effect on mechanical properties

Hähnel

Pippel

Woltersdorf

1995

Journal of Microscopy

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Key words. Nicalon fibre-reinforced borosilicate glass, interlayer structure, transmission electron microscopy, in situ deformation. Summaryestablish the relationship between the structure of the Interlayer phenomena, revealed by high-voltage electron microscopy (HVEM) and high-resolution electron microscopy (HREM), are presented as they occur in various SiC(Nica1on) fibre-reinforced Duran glass composites (differing in the specific sol-gel supported production processes). Their dependence on the production parameters and their influence on the materials properties are discussed, taking into account the results of scanning electron microscope (SEM) in situ tensile tests. Besides graphitic carbon, textured to a variable degree and influencing the tensile behaviour, oxycarbide formation is indicated.A reactive matrix additive, such as, e.g. Ti02, resulted in a decrease in strength and a brittle behaviour, while the addition of ZrOz markedly improves the mechanical properties.

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Section: Acknowledgmentsmentioning

confidence: 99%

Nanostructure of interlayers in different Nicalon fibre/glass matrix composites and their effect on mechanical properties

Hähnel

Pippel

Woltersdorf

1995

Journal of Microscopy

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“…We also consider a stress free boundary condition for a PZT-G1195/[PZT-G1195/Araldite D] hybrid piezocomposite with PZT-G1195 fiber VF = 0.4 and PZT-G1195 particle VF varies from 0 to 0.5, subjected to an applied electric field 3 E along the poling direction up to 1 MV/m. Figure 5 depicts the effective transverse strain 11 ε and longitudinal strain 33 ε .…”

Section: Parametric Studiesmentioning

confidence: 99%

“…There have been several experimental studies on enhancing the mechanical properties of fibrous composites by dispersing particulate fillers into the matrix. For examples, hybrid composites show significant improvements in the transverse strength ( [3] and [4]), the flexural strength [5]- [7], the longitudinal compressive strength [8]- [12], and the bearing strength [13]. References [14] and [2] have shown that improvement in the overall dielectric constants of a fibrous piezocomposite can be achieved by adding PZT powder with a dispersing agent into the epoxy matrix.…”

Section: Introductionmentioning

confidence: 99%

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Nonlinear and Rate-Dependent Hysteretic Responses of Active Hybrid Composites

Lin¹,

Muliana²

2016

MSA

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Nonlinear electro-mechanical behaviors of piezoelectric materials and viscoelastic nature of polymers result in the overall nonlinear and hysteretic responses of active polymeric composites. This study presents a hybrid-unit-cell model for obtaining the effective nonlinear and rate-dependent hysteretic electro-mechanical responses of hybrid piezocomposites. The studied hybrid piezocomposites consist of unidirectional piezoelectric fibers embedded in a polymeric matrix, which is reinforced with piezoelectric particles. The hybrid-unit-cell model is derived based on a unit-cell model of fiber-reinforced composites consisting of fiber and matrix subcells, in which the matrix subcells are comprised of a unit-cell model of particle-reinforced composites. Nonlinear electro-mechanical responses are considered for the piezoelectric constituents while a viscoelastic solid constitutive model is used for the polymer constituent. The hybrid-unit cell model is used to examine the effects of different responses of the constituents, microstructural arrangements, and loading histories on the overall nonlinear and hysteretic electro-mechanical responses of the hybrid piezocomposites, which are useful in designing active polymeric composites.

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“…A large number of silicate systems have been explored, with both continuous (C, SiC and Si 3 N 4 fibres) 8,9 and discontinuous (SiC and Si 3 N 4 particulates, platelets and whiskers) [10][11][12] reinforcements.…”

Section: Introductionmentioning

confidence: 99%

Characterisation of borosilicate glass matrix composites reinforced with SiC or ZrO₂

Zawrah¹,

El-Kheshen²

2004

British Ceramic Transactions

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Two kinds of glass/ceramic composites were prepared. The first contained borosilicate glass with SiC ceramic: batches designated SG10, SG20, SG30 and SG40 consisted of 10 : 90, 20 : 80, 30 : 70 and 40 : 60 SiC/glass (wt-%) respectively. The second contained borosilicate glass with ZrO 2 : batches designated ZG5, ZG10, ZG20 and ZG40 consisted respectively of 5 : 95, 10 : 90, 20 : 80, 40 : 60 ZrO 2 /glass (wt-%). The densification parameters (bulk density and apparent porosity) were measured by the Archimedes method. Scanning electron microscopy and X-ray diffraction were used to investigate the microstructure and phase composition of the prepared composites. Cold crushing strength was also measured. The results reveal that in composites containing SiC, apparent porosity increases with increasing SiC content, while with increasing firing temperature from 800 to 1000uC, apparent porosity decreases to a minimum at 875uC before increasing again. As SiC content increases, the inhibition of cristobalite formation increases, as shown by XRD. The appearance of cristobalite causes the opposite effect on thermal properties: cold crushing strength increases with increasing SiC content, reaching a maximum at 30 wt-%SiC, and decreases again with 40 wt-%SiC. In ZrO 2 containing composites, apparent porosity increases with increasing ZrO 2 content. With increasing firing temperature, apparent porosity decreases, reaching a minimum at 1000uC. The effect of ZrO 2 on the inhibition of cristobalite formation is more obvious than with SiC. Also, the cold crushing strength of ZrO 2 containing composite is higher than for those containing SiC.BCT/0407

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Particulate-fibre-reinforced glass matrix hybrid composites

Cited by 23 publications

References 7 publications

Nanostructure of interlayers in different Nicalon fibre/glass matrix composites and their effect on mechanical properties

Nanostructure of interlayers in different Nicalon fibre/glass matrix composites and their effect on mechanical properties

Nonlinear and Rate-Dependent Hysteretic Responses of Active Hybrid Composites

Characterisation of borosilicate glass matrix composites reinforced with SiC or ZrO₂

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Particulate-fibre-reinforced glass matrix hybrid composites

Cited by 23 publications

References 7 publications

Nanostructure of interlayers in different Nicalon fibre/glass matrix composites and their effect on mechanical properties

Nanostructure of interlayers in different Nicalon fibre/glass matrix composites and their effect on mechanical properties

Nonlinear and Rate-Dependent Hysteretic Responses of Active Hybrid Composites

Characterisation of borosilicate glass matrix composites reinforced with SiC or ZrO2

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Characterisation of borosilicate glass matrix composites reinforced with SiC or ZrO₂