Effects of the addition of boron nitride nanoplate on the fracture toughness, flexural strength, and Weibull Distribution of hydroxyapatite composites prepared by spark plasma sintering

Aguirre, Trevor G.; Cramer, Corson L.; Torres, Vincent P.; Hammann, T.; Holland, Troy B.; Ma, Kun

doi:10.1016/j.jmbbm.2019.01.021

Cited by 28 publications

(14 citation statements)

References 58 publications

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“…This decomposition leads to a reduction in mechanical properties [60,65]. Ou et al [60] have reported a decrease in density for pure HA when sintered at high temperature.…”

Section: Densification Behavior and Phase Evolutionmentioning

confidence: 99%

Phase analysis, mechanical properties and in vitro bioactivity of graphene nanoplatelet-reinforced silicon nitride-calcium phosphate composites

Bozkurt

Akarsu

Akin

et al. 2021

Journal of Asian Ceramic Societies

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The aim of this study is to produce highly dense Si 3 N 4 based composites with good mechanical properties and bioactivity. Si 3 N 4 ceramics without using sintering aids, Si 3 N 4-HA and Si 3 N 4-HA-GNP based composites have been produced by spark plasma sintering (SPS) at temperatures of 1525-1550°C. The effect of reinforcement type and content on the densification behavior, phase analysis, microstructural development, mechanical properties, and in-vitro bioactivity behavior of Si 3 N 4 were systematically investigated. Monolithic Si 3 N 4 that contains a high amount of β-Si 3 N 4 phase (~87 wt%) was produced by nearly full densification (~99%). Hydroxyapatite (HA) was used as a starting powder during the preparation of binary and triple composites to provide bioactivity to Si 3 N 4 , and after sintering, HA transformed into tricalcium phosphate (β-TCP and α-TCP) polymorphs. The incorporation of GNPs had a positive effect on the stability of β-TCP phases at higher sintering temperatures. The improvement in indentation fracture toughness of the samples with GNP reinforcement was mainly attributable to pull-out and crack deflection mechanisms. In-vitro bioactivity of GNP added composites enhanced with increasing α-TCP content. More calcium phosphate-based particle formation was observed in Si 3 N 4-HA-GNP composites compared to the Si 3 N 4-HA.

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“…This decomposition leads to a reduction in mechanical properties [60,65]. Ou et al [60] have reported a decrease in density for pure HA when sintered at high temperature.…”

Section: Densification Behavior and Phase Evolutionmentioning

confidence: 99%

Phase analysis, mechanical properties and in vitro bioactivity of graphene nanoplatelet-reinforced silicon nitride-calcium phosphate composites

Bozkurt

Akarsu

Akin

et al. 2021

Journal of Asian Ceramic Societies

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“…The WVL (ÁV ) was calculated for each test that was conducted by using equation (1) and SWR (K S ) was calculated by applying the below-given formula (equation 3).…”

Section: Testingmentioning

confidence: 99%

“…These reports uncover that to assess because it is a mass property that depends fundamentally on the geometry, modulus, molecule estimate dispersion and grouping of the fibre/filler. [1][2][3] Carbon fibre (CF) is inert with the resin, hence weaker interface composites are always possible. However, the coefficient of friction (COF) and specific wear rate (SWR) of the boron nitride (BN)-filled composite surface showed better values compared to unfilled composites and also enhanced the pressure-velocity (PV) limit value.…”

Section: Introductionmentioning

confidence: 99%

Studies on mechanical, thermal and tribological properties of carbon fibre-reinforced boron nitride-filled epoxy composites

Muralidhara

Babu

2020

High Performance Polymers

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This research focuses on the static mechanical, thermal and tribological properties of carbon fibre epoxy (CF/Ep) composites filled with boron nitride (BN) micro-filler powder (BN-CF/Ep). The mechanical properties studied were tensile, flexural, interlaminar shear strength and hardness. The thermal properties studied were dynamic mechanical and thermogravimetric analyses which were analysed through dynamic mechanical analyser and thermogravimetric analyser, respectively. The curing ability and dispersion of BN filler in the Ep and composites were investigated through differential scanning calorimetry, Fourier-transform infrared spectra and scanning electron microscopy. The tribological properties focused were three-body abrasion and dry sliding friction and wear conduct. Three-body abrasion tests were studied with silica sand of 212 µm particle size, 30 N load, 2.38 m s−1 sliding velocity and variable abrasive distances of 250 m, 500 m, 750 m and 1000 m. The dry sliding wear tests were performed using pin-on-disc (POD) wear experimental set-up with 60 N load, 3 m s−1 sliding velocity and variable sliding distances of 1000 m, 2000 m and 3000 m. The results followed the trend of BN1% > BN3% > BN5% composites in all mechanical properties. The carbon fabric reinforcement along with the BN-Ep matrix improved enormously all the mechanical properties except impact resistance. Further, it was exhibited that 1 wt% BN into CF/Ep prompts better mechanical properties with predominant damping capacity and thermal stability. Both the dry sand abrasive wear and POD test outcomes revealed that all BN-CF/Ep composites prompt predominant wear resistance. CF along with BN improves enormously the wear resistance with friction coefficient. Further, it was exhibited that 1 wt% BN into CF/Ep in both three-body abrasive and POD tests prompts better wear resistance. Generally speaking, it was presumed that BN-CF/Ep gracefully and successfully improved the mechanical, thermal and tribological properties and morphology of Ep for various mechanical, electrical components and load-bearing applications used in automotive and engineered applications.

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“…Their strengthening and toughening mechanisms mainly include grain refinement, bridging, pull‐out, necking and fracture of BNNTs, as well as strong bonding between BNNTs and the ceramic matrix. BNNSs can exert crack bridging, branching, blunting, and deflection effects as well as generate protective films, resulting in the improvement of strength, fracture toughness, and the tribological properties of silicon nitride ceramic, 13,14 akermanite and hydroxyapatite scaffolds, 15,16 and zirconia dental material 17 …”

Section: Introductionmentioning

confidence: 99%

Large‐scale synthesis and growth mechanism of boron nitride nanocomposite assembled by nanosheets and nanotubes

Wang

Ping

et al. 2020

J Am Ceram Soc

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Boron nitride nanocomposites assembled by nanosheets and nanotubes can exert multi‐dimensional synergistic toughening and strengthening effects. This material is expected to be a high‐efficiency reinforcement additive in advanced structural ceramics. In this study, we designed a universal method for synthesizing gram‐scale boron nitride nanocomposites by annealing the precursor containing catalyst in chemical vapor deposition equipment under flowing ammonia, and a combined growth mechanism of surface‐diffusion and solid‐liquid‐solid is proposed. The boron nitride nanosheets were initially formed by a surface‐diffusion reaction between boron trioxide and ammonia at 1300°C. At elevated temperatures (1400°C‐1500°C), the boron nitride nanotubes grew in‐situ from the nanosheets in the presence of catalysts through a solid‐liquid‐solid mechanism, forming the desired boron nitride nanocomposite.

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Effects of the addition of boron nitride nanoplate on the fracture toughness, flexural strength, and Weibull Distribution of hydroxyapatite composites prepared by spark plasma sintering

Cited by 28 publications

References 58 publications

Phase analysis, mechanical properties and in vitro bioactivity of graphene nanoplatelet-reinforced silicon nitride-calcium phosphate composites

Phase analysis, mechanical properties and in vitro bioactivity of graphene nanoplatelet-reinforced silicon nitride-calcium phosphate composites

Studies on mechanical, thermal and tribological properties of carbon fibre-reinforced boron nitride-filled epoxy composites

Large‐scale synthesis and growth mechanism of boron nitride nanocomposite assembled by nanosheets and nanotubes

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