Results 1 to 10 of about 1,877,859 (354)
Brazilian Oral Research, 2017 : This in vitro study aimed to evaluate the volume of polymerization shrinkage (VS), gap (VG), and void (VV) using computerized microtomography (μCT) in bulk fill resin composites and conventional class I restorations, and to establish a correlation ...
Lauber José dos Santos Almeida Junior +6 more
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Void Defects in Composite Titanium Disilicide Process [PDF]
Korean Journal of Materials Research, 2002 We investigated the void formation in composite-titanium silicide() process. We varied the process conditions of polycrystalline/amorphous silicon substrate, composite deposition temperature, and silicidation annealing temperature. We report that the main reason for void formation is the mass transport flux discrepancy of amorphous silicon substrate ...
성희 정, 오성 송
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Dental materials journal, 2020 The aim of this study was to compare the effects of conventional, sonic or pre-heating insertion techniques on internal void formation of bulk-fill composites with micro-computed tomography.
Gülbike Demi̇rel +6 more
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Void and Moisture Content of Fiber Reinforced Composites
Journal of Advanced Research in Fluid Mechanics and Thermal Sciences, 2021 In this paper, a short review on the void and moisture content studies of fiber reinforced composites for both, synthetic and natural based fibers are presented. The review summarized the research papers in which include experimental and theoretical works that related to the void and moisture content studies.
null Nurul Zuhairah Mahmud Zuhudi +5 more
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Investigation of void content in Borassus flabellifer fiber/epoxy bio-nanocomposite using hyperparameter tuned ANN and response surface methodology optimisation [PDF]
Scientific ReportsVoid development is one of the main problems faced by natural fiber polymer composites since it severely affects their physical and mechanical properties. It limits these composites for use in construction, aerospace, automotive and marine uses.
Suresh Thirupathi +2 more
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Wettability-Driven void suppression and enhanced mechanical performance in Si₃N₄-Reinforced bamboo Fiber epoxy composites using COCOSO and ANN modeling [PDF]
Scientific ReportsThe incorporation of ceramic particles as fillers and natural fibers as reinforcements in polymer composites has gained significant attention in recent years. However, defects such as particle agglomeration, poor wettability, non-homogeneous distribution,
M. Saravana Kumar +5 more
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Research on Voids of Fiber Reinforced Polymer Composite
Material Sciences, 2017 纤维增强树脂基复合材料性能优异，广泛应用于航空航天及工业领域，而复合材料在成型过程中不可避免的产生孔隙缺陷，显著影响复合材料的力学性能。本文对纤维增强树脂基复合材料中孔隙的形成机理、测量表征方法以及孔隙对力学性能的影响进行了简要的概述。大量的试验研究表明，孔隙体积含量在0%~4%范围内时，含量每增加1%，层间剪切强度大约降低7%，层间剪切强度减少与孔隙近似呈线性关系。其它机械性能比层间剪切强度所受影响较低。 Fiber reinforced polymers with excellent performance are widely used in the field of aerospace and industries.
洪明 于
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Advances in Materials Science and Engineering, 2014 Random void defects have detrimental effect on the mechanical properties of 3D braided composites. A 3D FEM based on a periodic representative unit cell is developed to appraise the mechanical properties of 3D 4-directional braided composites containing ...
Kun Xu, Xiaomei Qian
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Micro-CT Assessment of Internal and External Void Formation in Class II Restorations of Primary Molars Using Bulk-Fill Composites. [PDF]
Materials (Basel)Gigova R, Hristov K.
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Evaluation of the Electrical Characteristics of Recycled Iron Reinforced Polystyrene Composites [PDF]
Iranica Journal of Energy and Environment, 2021 The prospective reuse of iron fillings from the milling machine and polystyrene in the solid waste streams in the production of plastic composites were considered in this study.
S. A. Abdulkareem +2 more
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