Mechanical and thermal properties of reduced graphene oxide reinforced aluminum nitride ceramic composites

Xia, Hongyan; Zhang, Xia; Shi, Zhongqi; Zhao, Chengli; Li, Yongfeng; Wang, Jiping; Qiao, Guanjun

doi:10.1016/j.msea.2015.04.091

Cited by 83 publications

(35 citation statements)

References 35 publications

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“…% rGO composite). Although rGO results an excellent reinforcement for ceramics [9][10]23 , it has the disadvantage of its quite low thermal conductivity, for example, a value of   0.2 W m -1 K -1 has been stated for thermally reduced rGO films at 1000 C for through-plane orientation 24 , which is one order of magnitude lower than the through-plane thermal conductivity estimated for pristine GNPs, 6-10 W m -1 K -1 20 . Actually, only one report 25 gives  values for the in-plane heat flow situation of GNP/AlN (with 5% wt.Y 2 O 3 ) composites (hot pressed at 1900 °C for 2h), showing an important decrease from 135 (bare matrix) to 50 W m -1 K -1 (10 wt.% GNP composite), close to the results they reported for the through-plane orientation.…”

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confidence: 93%

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The effect of graphene nanoplatelets on the thermal and electrical properties of aluminum nitride ceramics

Simsek

Nistal

Garcia

et al. 2017

Journal of the European Ceramic Society

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The thermal conductivity () of AlN (2.9 wt. % of Y 2 O 3 ) is studied as a function of the addition of multilayer graphene (from 0 to 10 vol. %). The  values of these composites, fabricated by spark plasma sintering (SPS), are independently analyzed for the two characteristic directions defined by the GNPs orientation within the ceramic matrix; that is to say, perpendicular and parallel to the SPS pressing axis. Conversely to other ceramic/graphene systems, AlN composites experience a reduction of  with the graphene addition for both orientations; actually the decrease of  for the in-plane graphene orientation results rather unusual. This behavior is conveniently reproduced when an interface thermal resistance is introduced in effective media thermal conductivity models. Also remarkable is the change in the electrical properties of AlN becoming an electrical conductor (200 S m -1 ) for graphene contents above 5 vol. %.

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confidence: 93%

“…% Y 2 O 3 ) prepared by hot pressing at 1850 °C in N 2 atmosphere for 1 h. In the same way, Xia el al. 23 reported decreases of  from 92.5…”

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confidence: 97%

The effect of graphene nanoplatelets on the thermal and electrical properties of aluminum nitride ceramics

Simsek

Nistal

Garcia

et al. 2017

Journal of the European Ceramic Society

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“…The stacking of GNSs and the agglomeration of CNTs reduced the reinforcing effects on the mechanical properties. 39,40 It seemed that both GNSs and CNTs were homogeneously dispersed in the S5 scaffold and almost no agglomeration of GNSs and CNTs was observed θ ° Figure 2 XrD patterns and raman spectra of the raw powder and scaffolds. Notes: (A) XrD patterns of the raw powder and composite scaffolds, and (B) raman spectra of gNs and cNT powder and s2, s4, and s6 scaffolds.…”

Section: Resultsmentioning

confidence: 99%

A nano-sandwich construct built with graphene nanosheets and carbon nanotubes enhances mechanical properties of hydroxyapatite–polyetheretherketone scaffolds

Feng¹,

Peng

et al. 2016

IJN

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A nano-sandwich construct was built by combining two-dimensional graphene nanosheets (GNSs) and one-dimensional carbon nanotubes (CNTs) to improve the mechanical properties of hydroxyapatite–polyetheretherketone (HAP–PEEK) scaffolds for bone tissue engineering. In this nano-sandwich construct, the long tubular CNTs penetrated the interlayers of graphene and prevented their aggregation, increasing the effective contact area between the construct and matrix. The combination of GNSs and CNTs in a weight ratio of 2:8 facilitated the dispersion of each other and provided a synergetic effect in enhancing the mechanical properties. The compressive strength and modulus of the scaffolds were increased by 63.58% and 56.54% at this time compared with those of HAP–PEEK scaffolds, respectively. The carbon-based fillers, pulling out and bridging, were also clearly observed in the matrix. Moreover, the dangling of CNTs and their entangling with GNSs further reinforced the mechanical properties. Furthermore, apatite layer formed on the scaffold surface after immersing in simulated body fluid, and the cells attached and spread well on the surface of the scaffolds and displayed good viability, proliferation, and differentiation. These evidence indicate that the HAP–PEEK scaffolds enhanced by GNSs and CNTs are a promising alternative for bone tissue engineering.

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“…3a). In order to compare the hardness value with other results, the hardness values of a graphene-like 2D nanomaterial-reinforced CMC are listed in Table S2583334434445464748495051525354. Although no BNNP/ceramic results are given, the two samples show a consistent tendency in terms of their hardness levels.…”

Section: Resultsmentioning

confidence: 99%

Enhancement of toughness and wear resistance in boron nitride nanoplatelet (BNNP) reinforced Si3N4 nanocomposites

Liu

Lee

et al. 2016

Sci Rep

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Ceramics have superior hardness, strength and corrosion resistance, but are also associated with poor toughness. Here, we propose the boron nitride nanoplatelet (BNNP) as a novel toughening reinforcement component to ceramics with outstanding mechanical properties and high-temperature stability. We used a planetary ball-milling process to exfoliate BNNPs in a scalable manner and functionalizes them with polystyrene sulfonate. Non-covalently functionalized BNNPs were homogeneously dispersed with Si3N4 powders using a surfactant and then consolidated by hot pressing. The fracture toughness of the BNNP/Si3N4 nanocomposite increased by as much as 24.7% with 2 vol.% of BNNPs. Furthermore, BNNPs enhanced strength (9.4%) and the tribological properties (26.7%) of the ceramic matrix. Microstructural analyzes have shown that the toughening mechanisms are combinations of the pull-out, crack bridging, branching and blunting mechanisms.

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Mechanical and thermal properties of reduced graphene oxide reinforced aluminum nitride ceramic composites

Cited by 83 publications

References 35 publications

The effect of graphene nanoplatelets on the thermal and electrical properties of aluminum nitride ceramics

The effect of graphene nanoplatelets on the thermal and electrical properties of aluminum nitride ceramics

A nano-sandwich construct built with graphene nanosheets and carbon nanotubes enhances mechanical properties of hydroxyapatite–polyetheretherketone scaffolds

Enhancement of toughness and wear resistance in boron nitride nanoplatelet (BNNP) reinforced Si3N4 nanocomposites

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Mechanical and thermal properties of reduced graphene oxide reinforced aluminum nitride ceramic composites

Cited by 83 publications

References 35 publications

The effect of graphene nanoplatelets on the thermal and electrical properties of aluminum nitride ceramics

The effect of graphene nanoplatelets on the thermal and electrical properties of aluminum nitride ceramics

A nano-sandwich construct built with graphene nanosheets and carbon nanotubes enhances mechanical properties of hydroxyapatite&ndash;polyetheretherketone scaffolds

Enhancement of toughness and wear resistance in boron nitride nanoplatelet (BNNP) reinforced Si3N4 nanocomposites

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A nano-sandwich construct built with graphene nanosheets and carbon nanotubes enhances mechanical properties of hydroxyapatite–polyetheretherketone scaffolds