Mechanical and dielectric properties of functionalized boron nitride nanosheets/silicon nitride composites

Liang, Guandong; Sun, Guoxun; Bi, Jianqiang; Wang, Weili; Yang, Xiangning; Li, Yonghan

doi:10.1016/j.ceramint.2020.09.038

Cited by 31 publications

(23 citation statements)

References 53 publications

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“…As previously discussed, the structural continuity and thermal conductivity of nanofillers are of great importance to the energy storage performance of polymer-based nanocomposites. Therefore, emerging 2D nanomaterials may provide new possibilities for the fabrication of high-performance dielectric capacitors [79][80][81][82]. Compared with 1D nanomaterials, 2D fillers with high aspect ratios can establish effective conductive barriers in nanocomposites to hinder the growth of electrical trees during the breakdown process and increasing breakdown strength [23].…”

Section: The 2d Nanoplate/linear Polymer Nanocompositesmentioning

confidence: 99%

An Overview of Linear Dielectric Polymers and Their Nanocomposites for Energy Storage

2021

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As one of the most important energy storage devices, dielectric capacitors have attracted increasing attention because of their ultrahigh power density, which allows them to play a critical role in many high-power electrical systems. To date, four typical dielectric materials have been widely studied, including ferroelectrics, relaxor ferroelectrics, anti-ferroelectrics, and linear dielectrics. Among these materials, linear dielectric polymers are attractive due to their significant advantages in breakdown strength and efficiency. However, the practical application of linear dielectrics is usually severely hindered by their low energy density, which is caused by their relatively low dielectric constant. This review summarizes some typical studies on linear dielectric polymers and their nanocomposites, including linear dielectric polymer blends, ferroelectric/linear dielectric polymer blends, and linear polymer nanocomposites with various nanofillers. Moreover, through a detailed analysis of this research, we summarize several existing challenges and future perspectives in the research area of linear dielectric polymers, which may propel the development of linear dielectric polymers and realize their practical application.

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Section: The 2d Nanoplate/linear Polymer Nanocompositesmentioning

confidence: 99%

An Overview of Linear Dielectric Polymers and Their Nanocomposites for Energy Storage

2021

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“…When BNNSs are added at 1.5 wt%, the grain size reaches the lowest value of .78 μm. The grain size of the composites is affected by the content of BNNSs, which is similar to the principle of adding graphene to AlN ceramics, and this is caused by the pinning effect 12,25,42 …”

Section: Resultsmentioning

confidence: 90%

“…The increase in the bending strength of composites is determined by many factors. First of all, as the grain size of the samples is reduced, the grains are refined, which will improve the bending strength of samples to a certain extent 15,25 . Subsequently, it is more obvious that the BNNSs play a key role in the fracture of the samples.…”

Section: Resultsmentioning

confidence: 99%

“…The grain size of the composites is affected by the content of BNNSs, which is similar to the principle of adding graphene to AlN ceramics, and this is caused by the pinning effect. 12,25,42 Figure 5 shows how the BNNSs affect the bending strength of the samples with different contents. In the pure AlN sample without BNNSs, the bending strength is…”

Section: Mechanical Propertiesmentioning

confidence: 99%

“…After years of research, the preparation method of BNNSs has become mature, 18,22 and BNNSs have been more and more widely used. [23][24][25][26] However, at the moment, there is no similar report about the preparation of composite materials by incorporating BNNSs into AlN ceramics.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The effect of boron nitride nanosheets on the mechanical and thermal properties of aluminum nitride ceramics

Yang

Liang

et al. 2022

Int J Applied Ceramic Tech

Self Cite

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The boron nitride nanosheets (BNNSs)/aluminum nitride (AlN) composites were prepared by hot press sintering at 1600 • C. The microstructure, mechanical properties, and thermal conductivity of the samples were measured, and the effect of adding BNNSs to AlN ceramics on the properties was studied. It is found that the addition of BNNSs can effectively improve the mechanical properties of AlN. When the additional amount is 1 wt%, the bending strength of the sample reaches the maximum value of 456.6 MPa, which is 23.1% higher than that of the AlN sample without BNNSs. The fracture toughness of the sample is 4.47 MPa m 1/2 , a 68.7% improvement over the sample without BNNSs. The composites obtained in the experiment have brilliant mechanical properties.

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Structural and Functional Adaptive Artificial Bone: Materials, Fabrications, and Properties

Feng

Zhao

Tang

et al. 2023

Adv Funct Materials

118

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It is an urgent need that defect repair can develop from simple device fixation to living tissue reconstruction, from short life function replacement to permanent regeneration repair. At present, bone transplantation has become the second largest transplantation surgery after blood transfusion, and artificial bone transplantation generates great hope for the repair and treatment of bone defect. In order to repair bone defect, artificial bone must have good biological properties and sufficient mechanical properties, and it should also have the shape matching to bone defect site and the connected porous structure. For structures and properties requirements of artificial bone, in this review three major challenges faced by artificial bone transplantation are systemtically analyzed and current methods and strategies to address these issues are discussed: 1) the need for developing a type of bone scaffold material with both biological and mechanical properties, 2) the need for realizing the controllable fabrication of individual shape and multistage pore structure of bone scaffold, 3) the need for realizing the transformation from man‐made structure to biological structure. Besides, it summarizes the advantages and disadvantages of these methods and discusses the potential future directions of structural and functional adaptive artificial bone for bone defect regeneration.

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Mechanical and dielectric properties of functionalized boron nitride nanosheets/silicon nitride composites

Cited by 31 publications

References 53 publications

An Overview of Linear Dielectric Polymers and Their Nanocomposites for Energy Storage

An Overview of Linear Dielectric Polymers and Their Nanocomposites for Energy Storage

The effect of boron nitride nanosheets on the mechanical and thermal properties of aluminum nitride ceramics

Structural and Functional Adaptive Artificial Bone: Materials, Fabrications, and Properties

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