Results 11 to 20 of about 780 (184)
Journal of the European Ceramic Society, 2020 Abstract Anisotropic slip activation of ZrB2 grains and deformation behaviour of constituents of ZrB2-SiC and ZrB2-B4C composites were investigated by nanoindentation. Samples were prepared by spark plasma sintering; crystallographic orientation of grains was determined by electron backscatter diffraction and deformation around indents in ...
Tamás Csanádi +5 more
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Microstructural and nanoindentation study of TaN incorporated ZrB2 and ZrB2–SiC ceramics
Scientific Reports, 2022 This study assessed the sinterability and microstructure of ZrB2-SiC-TaN and ZrB2-TaN ceramics. Spark plasma sintering at 2000 °C and 30 MPa for 5 min produced both ceramics.
Seyed Ali Delbari +10 more
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Engineering Science and Technology, an International Journal, 2017 In situ synthesis of aluminum matrix composites (AMCs) has become a popular method due to several advantages over conventional stir casting method. In the present study, AA7075/ZrB2 AMCs reinforced with various content of ZrB2 particulates (0, 3, 6, 9 ...
J. David Raja Selvam, I. Dinaharan
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Toughening Effect of ZrB2 in Al2O3-ZrB2 Nanocomposite Ceramics
Rare Metal Materials and Engineering, 2016 Abstract The Al2O3-ZrB2 nanocomposite ceramics were prepared and the mechanical properties of the process parameters' effect were studied. The results show that for various applied sintering temperatures of Al2O3 ceramics, a maximum Vickers hardness of 18 970 MPa and high reliability are attained at 1500 °C and at atmosphere sintering.
Wang Xiaomin +3 more
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Microwave Sintering of Aluminum-ZrB2 Composite: Focusing on Microstructure and Mechanical Properties [PDF]
Materials Research, 2016 Microwave assisted rapid sintering was carried out to fabricate aluminum-ZrB2 metal matrix composites containing 1 wt% cobalt and 10, 15 and 20 wt% ZrB2 as the reinforcements at temperatures of 600, 700 and 800°C.
Ehsan Ghasali +3 more
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Results in Physics, 2019 The effect of ZrB2-Si3N4 particle reinforcement on the tribological behavior and microstructure of AA8011 alloy has been studied. ZrB2-Si3N4 particles were varied from 0 wt% to 20 wt% with an interval of 5 wt%.
J. Fayomi +4 more
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Synergistic influence of SiC and C3N4 reinforcements on the characteristics of ZrB2-based composites
Journal of Asian Ceramic Societies, 2021 In this work, ZrB2–SiC and novel C3N4-doped ZrB2–SiC composites were manufactured at 1850°C under an external load of 40 MPa for 6 min via spark plasma sintering. The effects of C3N4 on the mechanical characteristics (flexural strength, Vickers hardness,
Zohre Ahmadi +5 more
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Rhombohedral Boron Nitride Epitaxy on ZrB2
Journal of Vacuum Science & Technology A: Vacuum, Surfaces, and Films, 2020 Epitaxial rhombohedral boron nitride (r-BN) films were deposited on ZrB2(0001)/4H-SiC(0001) by chemical vapor deposition at 1485 °C from the reaction of triethylboron and ammonia and with a minute amount of silane (SiH4). X-ray diffraction (XRD) φ-scans yield the epitaxial relationships of r-BN(0001)∥ZrB2(0001)out-of-plane and r-BN[112¯0]∥ZrB2[112¯0 ...
Laurent Souqui +4 more
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Microstructure of ZrB2–ZrN directionally solidified eutectic composite by arc-melting
Journal of Asian Ceramic Societies, 2018 A ZrB2–ZrN eutectic composite was prepared by arc-melting a mixture of ZrB2 and ZrN powders under a N2 atmosphere. The eutectic composition was 48ZrB2–52ZrN (mol%), resulting in a rod-like microstructure comprising hexagonally faceted ZrN single-crystal ...
Eric Jianfeng Cheng +2 more
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The microstructures and properties of in-situ ZrB2 reinforced Cu matrix composites
Results in Physics, 2019 In this work, ZrB2 particles have been in-situ synthesized in the Cu melts using Cu-B master alloy as the starting material. It is found that the non-uniformly distributed ZrB2 particles in the prepared as-cast composites tend to aggregate into ...
Xiaoliang Fan +5 more
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