Effects of BN on the microstructural evolution and mechanical properties of BAS-BN composites

Li, Qian; Cai, Delong; Yang, Zhihua; Duan, Xiaoming; Li, Daxin; Sun, Yinyong; Wang, Shengjin; Jia, Dechang; Bollmann, J.; Zhou, Yu

doi:10.1016/j.ceramint.2018.10.039

Cited by 18 publications

(13 citation statements)

References 33 publications

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“…These results suggest that a homogenous particle packing in the green body was provided by tape casting (or colloidal processing) method due to dispersion of the plate-like hBN particles, which allowed high hBN loading into the dense Al 2 O 3 /glass structure. Similar effects of the platelet hBN particles on densification were reported in barium aluminosilicate (BaAl 2 Si 2 O 8 , BAS)/ hBN (10 to 50 wt%) composites fabricated by hot pressing at 1500°C [16]. The bulk density decreased from 3.18 g/cm 3 at 10 wt% hBN without any visible micro-cracks to 2.22 g/cm 3 at 50 wt% hBN with cracks and voids.…”

Section: Resultssupporting

confidence: 67%

Al₂O₃/glass/hBN composites with high thermal conductivity and low dielectric constant for low temperature cofired ceramic applications

Bilaç

Duran

2021

Journal of Asian Ceramic Societies

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Section: Resultssupporting

confidence: 67%

Al₂O₃/glass/hBN composites with high thermal conductivity and low dielectric constant for low temperature cofired ceramic applications

Bilaç

Duran

2021

Journal of Asian Ceramic Societies

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“…9. Moreover, it was shown that the introduction of BN results in the strengthening and toughening of ceramic composites [28,82,175].…”

Section: Strengthmentioning

confidence: 99%

Mechanical and tribological properties of nanocomposites incorporated with two-dimensional materials

et al. 2020

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In recent years, attempts to improve the mechanical properties of composites have increased remarkably owing to the inadequate utilization of matrices in demanding technological systems where efficiency, durability, and environmental compatibility are the key requirements. The search for novel materials that can potentially have enhanced mechanical properties continues. Recent studies have demonstrated that two-dimensional (2D) nanomaterials can act as excellent reinforcements because they possess high modulus of elasticity, high strength, and ultralow friction. By incorporating 2D nanomaterials in a composite, 2D nanomaterial-based composites (2DNBCs) have been developed. In view of this, a critical review of recent mechanical and tribological studies based on 2DNBCs has been undertaken. Matrices such as polymers, ceramics, and metals, as well as most of the representative 2D nanomaterial reinforcements such as graphene, boron nitride (BN), molybdenum disulfide (MoS2), and transition metal carbides and nitrides (MXenes) have been included in this review. Their preparation strategies, intrinsic mechanical properties, friction and lubrication performances, strengthening mechanisms, influencing factors, and potential applications have been comprehensively discussed. A brief summary and prospects are given in the final part, which would be useful in designing and fabricating advanced 2D nanocomposites in the future.

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“…Recently, the population-based meta-heuristic algorithms that can handle constrained optimization problems have become the efficient and effective techniques for path planning [2,[12][13][14][15][16][17][18][19][20]. By designing specific objective functions or constraint functions, both the self-constraints of UAV and environmental constraints can be taken into account during the planning process [21][22][23].…”

Section: Introductionmentioning

confidence: 99%

“…Roberge et al [2] compared the performance of parallel GA and particle swarm optimization (PSO) for real-time UAV path planning. In addition, the artificial bee colony (ABC) [13], ant colony optimization (ACO) [14], water drops optimization (WDO) [15], and their variations have also been utilized to search the optimal flight path for single or multiple UAVs. More critical situation such as scenarios with disaster and dynamic threats usually desires improved intelligent algorithms [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Path Planning for Unmanned Aerial Vehicle Using a Mix-Strategy-Based Gravitational Search Algorithm

Jiang

Zhang

2021

IEEE Access

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Path planning is a global optimization problem aims to program the optimal flight path for Unmanned Aerial Vehicle (UAV) that has short length and suffers from low threat. In this paper, we present a Mixed-Strategy based Gravitational Search Algorithm (MSGSA) for the path planning. In MSGSA, an adaptive adjustment strategy for the gravitational constant attenuation factor alpha (α) is presented firstly, in which the value of α is adjusted based on the evolutionary state of the particles. This helps to adaptively balance the exploration and exploitation of the algorithm. In addition, to further alleviate the premature convergence problem, a Cauchy mutation strategy is developed for MSGSA. In this strategy, only when the global best particle cannot be further improved for several times the mutation is executed. In the MSGSA based path planning procedure, we construct an objective function using the flight length cost, threat area cost, and turning angle constraint to decrease the flight risk and obtain the smoother path. For performance evaluation, the MSGSA is applied to two typical simulated flight missions with complex flight environments, including user-defined forbidden flying areas, Radar, missile, artillery and anti-aircraft gun. The obtained flight paths are compared with that of the standard Gravitational Search Algorithm (GSA) and two improved variants of GSA, i.e. gbest-guided GSA (GGSA), and hybrid Particle Swarm Optimization and GSA (PSOGSA). The experimental results demonstrate the superiority of the MSGSA based method in terms of the solution quality, robustness, as well as the constraint-handling ability.

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Effects of BN on the microstructural evolution and mechanical properties of BAS-BN composites

Cited by 18 publications

References 33 publications

Al₂O₃/glass/hBN composites with high thermal conductivity and low dielectric constant for low temperature cofired ceramic applications

Al₂O₃/glass/hBN composites with high thermal conductivity and low dielectric constant for low temperature cofired ceramic applications

Mechanical and tribological properties of nanocomposites incorporated with two-dimensional materials

Path Planning for Unmanned Aerial Vehicle Using a Mix-Strategy-Based Gravitational Search Algorithm

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Effects of BN on the microstructural evolution and mechanical properties of BAS-BN composites

Cited by 18 publications

References 33 publications

Al2O3/glass/hBN composites with high thermal conductivity and low dielectric constant for low temperature cofired ceramic applications

Al2O3/glass/hBN composites with high thermal conductivity and low dielectric constant for low temperature cofired ceramic applications

Mechanical and tribological properties of nanocomposites incorporated with two-dimensional materials

Path Planning for Unmanned Aerial Vehicle Using a Mix-Strategy-Based Gravitational Search Algorithm

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Product

Resources

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Al₂O₃/glass/hBN composites with high thermal conductivity and low dielectric constant for low temperature cofired ceramic applications

Al₂O₃/glass/hBN composites with high thermal conductivity and low dielectric constant for low temperature cofired ceramic applications