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Journal articles on the topic 'Interface microstructure'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Wang, Ying Hao, Xian Sheng Qi, Xian Lin Meng, et al. "The Influence of Initial Microstructures on the Diffusion Bonding Interface of High Nb Containing TiAl Alloy." Advanced Materials Research 753-755 (August 2013): 396–401. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.396.

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The solid-state diffusion bonding experiments of high Nb containing TiAl alloy were successfully carried out at 950°C under a uniaxial pressure of 30MPa for 45min, and the influence of different initial microstructures, such as initial forged microstructure (named duplex microstructure) with different grain sizes, near lamellar microstructure and full lamellar microstructure, on the interface of the bonding joints were investigated. And the microstructure characterization of interfaces was taken by OM, SEM, EDS and micro-hardness tester. The results indicated that the grain size and strain ene

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2

Feng, Yanfeng, Yan Lou, and Jun Shen. "Microstructure-Forming Mechanism of Optical Sheet Based on Polymer State Transition in Injection-Rolling Process." Polymers 13, no. 2 (2021): 181. http://dx.doi.org/10.3390/polym13020181.

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Polymeric optical sheets are significant components in large-scale display devices and are difficult to fabricate due to small size and high accuracy of large-area microstructures. As a newly developed molding technique, injection-rolling is capable of continuously and efficiently achieving large-area microstructures on the polymer surface with short time and high replication. However, the microstructure-forming mechanism during the injection-rolling process has not been fully understood. In this paper, a three-dimensional steady-state heat-flow coupling simulation model of the injection-rolli

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3

Santofimia, M. J., John G. Speer, Lie Zhao, and Jilt Sietsma. "Model for the Annealing of Partial Martensite-Austenite Microstructures in Steels." Solid State Phenomena 172-174 (June 2011): 567–72. http://dx.doi.org/10.4028/www.scientific.net/ssp.172-174.567.

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The microstructure formed in a steel after a partial martensitic transformation contains martensite-austenite assemblies with similar chemical composition in the two phases. In the absence of carbide precipitation, further annealing or tempering of this microstructure is believed to promote carbon partitioning from the martensite to the austenite. Experimental observations suggest that this carbon diffusion might take place in combination with migration of martensite-austenite interfaces. In this work, the effect of the martensite and austenite dimensions on the interaction between the carbon

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4

Cheepu, Muralimohan, D. Venkateswarlu, P. Nageswara Rao, V. Muthupandi, K. Sivaprasad, and Woo Seong Che. "Microstructure Characterization of Superalloy 718 during Dissimilar Rotary Friction Welding." Materials Science Forum 969 (August 2019): 211–17. http://dx.doi.org/10.4028/www.scientific.net/msf.969.211.

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In the present study, dissimilar friction welding between super alloy 718 and carbon steel friction welded to evaluate the formation of microstructure in the weld interface and in superalloy 718. The temperature during friction welding at weld interface was recorded to determine the temperature effect on the microstructural changes on alloy 718 side. The finite element modeling of weld interface temperature, deformation and stresses were evaluated and validated with the experimental results. The microstructural observation along with the weld interface and adjacent regions are studied. The eff

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5

Yao, Yi Yong, and Li Ping Zhao. "The Bending Interface Model for Flexible Three-Dimensional Microstructure." Applied Mechanics and Materials 58-60 (June 2011): 1082–87. http://dx.doi.org/10.4028/www.scientific.net/amm.58-60.1082.

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For the flexible three-dimensional microstructure, the GMC single-cell method was applied to establish the mechanical model of the bending interface, and then the interface micro-element method based on composite materials was performed to work on the interfacial properties of weak interfaces and micro-mechanical behavior. As a result, a flexible interface model for the interface stress was constructed and it would be helpful to improve the bending properties of the flexible three-dimensional microstructure.

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6

Sietsma, Jilt. "Physical Modelling the Microstructure Formation in Advanced High-Strength Steels." Materials Science Forum 762 (July 2013): 194–209. http://dx.doi.org/10.4028/www.scientific.net/msf.762.194.

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For the production and development of Advanced High-Strength Steels adequate understanding of the formation mechanisms of the metallic microstructure is crucial. The superior properties of these steels are based on a sometimes delicate balance between thermodynamic (in) stability and dynamic processes, in which thermodynamic driving force and interface kinetics determine the development of the microstructure of the steel. In order to achieve further development and optimisation of such steels, experimental and modelling studies should go beyond microstructural characterisation in terms of aver

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7

Guo, Jinchang, Chunkai Li, Jianxiao Bian, Jianrui Zhang, and Baolong Geng. "Microstructures and Electrical Resistivity of Aluminum–Copper Joints." Metals 13, no. 8 (2023): 1474. http://dx.doi.org/10.3390/met13081474.

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Using pulsed double electrode-gas metal arc welding, aluminum wires are joined to copper plates with fillers of different fractions of silicon. Two layers of different microstructures are formed near the Al-Cu interface: one consists of a hypoeutectic microstructure of α (Al) + Al2Cu, and the other consists of an intermetallic compound (IMC) of Al2Cu. Increasing the heat input causes increases in the thicknesses of the IMC layer and the layer of the hypoeutectic microstructure. Si suppresses the growth of the IMC layer and assists the growth of the layer of the hypoeutectic microstructure. The

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Sun, Jia, Lingyan Zhao, Huaxin Liang та ін. "A Review on Phase Field Modeling for Formation of η-Cu6Sn5 Intermetallic". Metals 12, № 12 (2022): 2043. http://dx.doi.org/10.3390/met12122043.

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Formation of intermetallic compounds (IMCs) exhibits remarkable microstructural features and provides opportunities for microstructure control of microelectronic interconnects. Excessive formation of brittle IMCs at the Cu/Sn interface such as η-Cu6Sn5 can deteriorate the reliability and in turn lead to solder joint failure in the Pb-free Sn-based solder joints. Phase field method is a versatile tool for prediction of the mesoscopic structure evolution in solders, which does not require tracking interfaces. The relationships between the microstructures, reliability and wettability were widely

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9

Bandaru, Pravallika, Saswata Bhattacharyya, and Shourya Dutta-Gupta. "Insights into propagating surface plasmons in Ag–Cu alloy thin films: Enhancement of spin angular momentum of light." Journal of Applied Physics 132, no. 18 (2022): 183101. http://dx.doi.org/10.1063/5.0119124.

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Surface plasmon polaritons (SPPs) can be supported by metal–dielectric interfaces and have been exploited for various applications. Typically, most studies deal with plasmons excited in pure metallic films or homogenous alloy thin films and the understanding of plasmon behavior in films with complex microstructures is limited. In this work, we numerically study the surface plasmons that are supported at the interface of an Ag–Cu alloy film that undergoes spinodal decomposition to produce a two-phase microstructure, when an initially compositionally homogenous alloy film (with composition withi

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10

Jeong, Y. K., Y. S. Kim, and S. T. Oh. "Fabrication of Cu-Based SiC Composites by Spark Plasma Sintering of Cu-Nitrate Coated SiC Powders." Archives of Metallurgy and Materials 62, no. 2 (2017): 1407–10. http://dx.doi.org/10.1515/amm-2017-0217.

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AbstractAn optimum route to fabricate the Cu-based SiC composites with homogeneous microstructure was investigated. Three methods for developing the densified composites with sound interface between Cu and SiC were compared on the basis of the resulting microstructures. Starting with three powder mixtures of elemental Cu and SiC, elemental Cu and PCS coated SiC or PCS and Cunitrate coated SiC was used to obtain Cu-based SiC composites. SEM analysis revealed that the composite fabricated by spark plasma sintering using elemental SiC and Cu powder mixture showed inhomogeneous microstructure. Con

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11

Biggemann, Jonas, David Köllner, Swantje Simon, Paula Heik, Patrizia Hoffmann, and Tobias Fey. "Porous Functional Graded Bioceramics with Integrated Interface Textures." Ceramics 4, no. 4 (2021): 681–95. http://dx.doi.org/10.3390/ceramics4040048.

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Porous functional graded ceramics (porous FGCs) offer immense potential to overcome the low mechanical strengths of homogeneously porous bioceramics used as bone grafts. The tailored manipulation of the graded pore structure including the interfaces in these materials is of particular interest to locally control the microstructural and mechanical properties, as well as the biological response of the potential implant. In this work, porous FGCs with integrated interface textures were fabricated by a novel two-step transfer micro-molding technique using alumina and hydroxyapatite feedstocks with

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12

Qiu, J., D. R. Menke, M. Kobayashi, et al. "ZnSe/GaAs heterovalent interfaces: interface microstructure versus electrical properties." Journal of Crystal Growth 111, no. 1-4 (1991): 747–51. http://dx.doi.org/10.1016/0022-0248(91)91074-k.

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13

Cui, Ning, Qianqian Wu, Jin Wang, Binjiang Lv та Fantao Kong. "The Directional Solidification, Microstructural Characterization and Deformation Behavior of β-Solidifying TiAl Alloy". Materials 12, № 8 (2019): 1203. http://dx.doi.org/10.3390/ma12081203.

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A β-solidifying Ti–43Al–2Cr–2Mn–0.2Y alloy was directionally solidified by the optical floating zone melting method. The microstructure is mainly characterized by γ/α2 lamellae with specific orientations, which exhibits straight boundaries. The β phase is randomly distributed in the lamellar microstructure, indicating that the β phase cannot be directionally solidified. The directional solidification of γ/α2 lamellae was not affected by the precipitation of the β phase. Hot compression tests show that the deformation behavior of the β-containing lamellar microstructure also exhibits the anisot

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14

Pan, Suping, Mingzhu Fu, Huiqun Liu, Yuqiang Chen, and Danqing Yi. "In Situ Observation of the Tensile Deformation and Fracture Behavior of Ti–5Al–5Mo–5V–1Cr–1Fe Alloy with Different Microstructures." Materials 14, no. 19 (2021): 5794. http://dx.doi.org/10.3390/ma14195794.

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The plastic deformation processes and fracture behavior of a Ti–5Al–5Mo–5V–1Cr–1Fe alloy with bimodal and lamellar microstructures were studied by room-temperature tensile tests with in situ scanning electron microscopy (SEM) observations. The results indicate that a bimodal microstructure has a lower strength but higher ductility than a lamellar microstructure. For the bimodal microstructure, parallel, deep slip bands (SBs) are first noticed in the primary α (αp) phase lying at an angle of about 45° to the direction of the applied tension, while they are first observed in the coarse lath α (α

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15

Evans, A. G., and M. Rühle. "Microstructure and Fracture Resistance of Metal/Ceramic Interfaces." MRS Bulletin 15, no. 10 (1990): 46–50. http://dx.doi.org/10.1557/s0883769400058668.

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Metal-ceramic interfaces play an important, sometimes controlling, role in composites, multilayer substrates, capacitors, electron tubes, and automotive power sources. Often bonding and adhesion between the ceramic and metal are critical to the components' performance. Interface geometry and chemistry play a dominant role in determining the mechanical and electrical integrity of composites. Furthermore, unique properties may be developed from multilayer ceramic-metal structures.Systematic studies of metal-ceramic interfaces started in the early 1960s. Such studies were directed toward identify

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16

Akbari Mousavi, Seyed Ali Asghar, and A. R. Sufizadeh. "The Effects of Position of the Laser Beam on the Pulsed Nd: YAG Laser Weld Microstructure of AISI 630 and AISI 321 Stainless Steels." Advanced Materials Research 445 (January 2012): 424–29. http://dx.doi.org/10.4028/www.scientific.net/amr.445.424.

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The study was conducted to investigate the effects of laser beam position on the weld microstructure of AISI 630 and AISI 321 stainless steels. The optical and scanning electron microscopy and x-ray diffraction of the weld microstructures were carried out. The results showed that if the laser beam was focused at the interface, austenite, marensite and ferrite microstructures were formed at the weld region. If the laser beam was focused toward the AISI 630 stainless steel denoted as sample P in the manuscript, the martensitic-ferritic microstructures were produced in the weld cross section. If

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17

Zhou, Shi Quan, Hong Zhao, and Qiang Dong. "The Investigation of Diffusion Welding Process and Interfacial Microstructure and Properties on TiCN/Ni." Materials Science Forum 539-543 (March 2007): 4042–47. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.4042.

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Affection of the main process parameters(Temperature and Time) on microstructure and properties of Ti（C,N）/Ni interface has been studied by using Cu and Nb interlayer in Vacuum diffusion welding device. Results have shown that interface interlayer did not change and interface microstructure was Cu/Nb layer structure and Cu diffused into Ni with a little when diffusion welding temperature was lower than 1273K. But when diffusion welding temperature was 1523K, interface microstructures were Ni8Nb metallic compound and dispersing deposition CuNi solid solution in the earlier, finally they were tr

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18

Lei, Yinkai, Tianle Cheng, Tao Yang, William K. Epting, Harry W. Abernathy, and You-Hai Wen. "Modeling the Distribution of Oxygen Partial Pressure in the Electrolyte of Solid Oxide Cells and Its Implication on Microstructure Evolution in the Hydrogen Electrode." ECS Meeting Abstracts MA2023-01, no. 54 (2023): 148. http://dx.doi.org/10.1149/ma2023-0154148mtgabs.

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The distribution of oxygen partial pressure in the electrolyte has an important effect on the stability of solid oxide cells (SOCs). It is well known that the high oxygen partial pressure at the oxygen electrode and electrolyte interface causes delamination, while its effect in the hydrogen electrode (HE) has received comparatively little attention. The only existing model for the distribution of oxygen partial pressure in the electrolyte of SOC is proposed by Virkar et al., which is a one-dimensional model that does not consider the Butler-Volmer equation at triple phase boundary (TPB) nor th

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19

Zhu, Ruican, Shixiong Guo, Chao Huang, Zhenglong Lei, Xinrui Zhang, and Jinge Liu. "Effects of Different Types of Interlayers on the Interfacial Reaction Mechanism at the Cu Side of Al/Cu Lap Joints Obtained by Laser Welding/Brazing." Materials 14, no. 24 (2021): 7797. http://dx.doi.org/10.3390/ma14247797.

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The influence of tin foil and Ni coatings on microstructures, mechanical properties, and the interfacial reaction mechanism was investigated during laser welding/brazing of Al/Cu lap joints. In the presence of a Zn-based filler, tin foil as well as Ni coating strengthened the Al/Cu joints. The tin foil only slightly influenced the joint strength. It considerably improved the spreading/wetting ability of the weld filler; however, it weakened the bonding between the seam and the Al base metal. The Ni coating considerably strengthened the Al/Cu lap joints; the highest tensile strength was 171 MPa

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20

Kang, Suk Joong L., Yang Il Jung, and Kyoung Seok Moon. "Principles of Microstructural Design in Two-Phase Systems." Materials Science Forum 558-559 (October 2007): 827–34. http://dx.doi.org/10.4028/www.scientific.net/msf.558-559.827.

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When a polycrystal is in chemical equilibrium, the microstructure evolves as a result of grain growth under the capillary driving force arising from the interface curvature. As the growth rate of an individual grain is the product of the interface mobility and the driving force, the growth of the grain can be controlled by changing these two parameters. According to crystal growth theories, the growth of a crystal with a rough interface is governed by diffusion and its interface mobility is constant. In-contrast, the growth of a crystal with faceted interfaces is governed by the interface reac

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21

Han, Ke. "Strength and Ductility of Nanostructured Composites with Co-Deformable Components." Materials Science Forum 633-634 (November 2009): 383–92. http://dx.doi.org/10.4028/www.scientific.net/msf.633-634.383.

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This paper reviews research on nanostructured high strength wires and strips. Such materials have sufficient ductility and they have found application in a variety of areas. The high strength of the materials is achieved by refinement of the spacing between the strengthening fibers. Due to the refined microstructure, the materials have very large interphase interface areas. Such interfaces provide very effective barriers for dislocation motions. In spite of their microstructural refinement, the materials still have sufficient ductility that gives them engineering values.

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22

Chen, Wen-Jing, Qun-Yan Chen, Yu Mao, and Si-Cheng Tang. "Effect of laser cladding on microstructural transformation and mechanical properties of heat affected zone of EA4T steel." Materials Express 11, no. 10 (2021): 1707–15. http://dx.doi.org/10.1166/mex.2021.2082.

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In this study, laser cladding on EA4T steel was carried out. The Composition of HAZ of the EA4T steel was analyzed by OM and SEM. The effect of laser cladding on microstructural transformation of HAZ of EA4T steel was discussed. The distribution of alloying elements and the micromechanical properties of the interface were tested. The results show that the microstructures of the laser cladding heat-affected zone of the EA4T steel are mainly lath martensite. The homogenization of austenite and the dissolution of carbides near the interface are not sufficiently developed, and coarse grains are ob

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23

Bao, Jia Wei, and Su Yuan Yang. "Microstructure and Properties of 1060Al/AZ31/1060Al Composite Plates Fabricated by Explosive Welding." Materials Science Forum 898 (June 2017): 1283–88. http://dx.doi.org/10.4028/www.scientific.net/msf.898.1283.

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1060Al/AZ31/1060Al composite plates were fabricated by explosive welding. The microstructure and properties of the composite plate after explosive welding were investigated. The results showed that all bonding interface had a wavy morphology. The wavelength and amplitude of the lower interface were larger than that of the upper interface. Diffusion layer occurred in both interfaces and the thickness were both approximate 4 μm. Adiabatic shear bands and twin structure were observed in AZ31. The shear bond strength of the lower interface was larger than that of the upper interface. Larger amplit

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24

Jamaludin, Shamsul Baharin, Josef Hadipramana, Mohd Fitri Mohd Wahid, Kamarudin Hussin, and Azmi Rahmat. "Microstructure and Interface Analysis of Glass Particulate Reinforced Aluminum Matrix Composite." Advanced Materials Research 795 (September 2013): 578–81. http://dx.doi.org/10.4028/www.scientific.net/amr.795.578.

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A characterization of microstructure and interface was made on the composites Al-4 % Cu reinforced with 15 wt. % glass particulate. The composite was fabricated by powder metallurgy followed by solution treatment and artificial ageing. The microstructures of the composite showed that the glass particulates were in-homogenously distributed in the matrix and segregated near copper. The aluminum oxide layer was found between aluminum, copper and glass particulate. Micro cracks were observed in the aluminum oxide layer and at the interface between aluminum oxide layer and aluminum. Hardness increa

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25

Li, Jiansheng, Zuyuan Xu, Yu Zhao, et al. "Interfacial Microstructure and Shear Behavior of the Copper/Q235 Steel/Copper Block Fabricated by Explosive Welding." Coatings 13, no. 3 (2023): 600. http://dx.doi.org/10.3390/coatings13030600.

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A copper/Q235 steel/copper composite block with excellent bonding interfaces was prepared by explosive welding which was a promising technique to fabricate laminates. The microstructure and mechanical properties of the interfaces were investigated via the tensile-shear test, optical microscope (OM), X-ray diffraction (XRD), scanning electron microscope (SEM), and electron back-scattered diffraction (EBSD). The results showed that the shear strength of the upper-interface and lower-interfaces of the welded copper/steel are higher than ~235 MPa and ~222 MPa, respectively. The specimens failed fu

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26

Zhou, Tingting, Lingpeng Meng, Mingdong Yi, and Chonghai Xu. "Simulation of Microscopic Fracture Behavior in Nanocomposite Ceramic Tool Materials." Lubricants 11, no. 11 (2023): 489. http://dx.doi.org/10.3390/lubricants11110489.

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In this paper, the microstructures of nanocomposite ceramic tool materials are represented through Voronoi tessellation. A cohesive element model is established to perform the crack propagation simulation by introducing cohesive elements with fracture criteria into microstructure models. Both intergranular and transgranular cracking are considered in this work. The influences of nanoparticle size, microstructure type, nanoparticle volume content and interface fracture energy are analyzed, respectively. The simulation results show that the nanoparticles have changed the fracture pattern from in

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27

Wang, Zhaochang, Jiawei Ji, Yuhang Guo, et al. "Robust air cavity generation on sacrificial microstructures for sustainable underwater drag reduction." Applied Physics Letters 121, no. 18 (2022): 181602. http://dx.doi.org/10.1063/5.0128049.

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Reducing fluid frictional drag at the solid–liquid interface is a promising strategy for improving the hydrodynamic properties of the structure in water, though so far it has remained unattainable without robust air cavities. Herein, we report a durable generation strategy of robust air cavity on the rough microstructured surface, which could achieve stable drag reduction even after 2000th water entry test. It is worth noting that the generation strategy is almost independent of the wear of surface microstructure, as the worn microstructures still keep a rough morphology and would alter the ca

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Li, Yan, Xin Yang Wang, Shi Zhong Wei, Xiang Dong Ma, and Liu Jie Xu. "Effect of Brazing Process on Alumina/Carbon Steel Interface Microstructure and Joining Strength." Advanced Materials Research 177 (December 2010): 647–50. http://dx.doi.org/10.4028/www.scientific.net/amr.177.647.

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Al2O3 ceramics and carbon steels were brazed using Cu-Ti active filler metal. The weld interface was characterized using scanning electron microscopy, energy spectrometer and X-ray diffraction instrument. Effects of brazing temperature on interface microstructures and the shear strength of the joint were investigated. The results show that the optimum brazing process is brazing temperature of 1323K, holding 30 min. The brazed joints with good microstructure morphology and higher interface shear strength can be obtained under the optimum brazing process. Interface bonding zone consists of three

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29

Skuza, Wojciech, Henryk Paul, Katarzyna Berent, Mariusz Prazmowski, and Piotr Bobrowski. "Microstructure and Mechanical Properties of Ti/Cu Clads Manufactured by Explosive Bonding at Different Stand-Off Distances." Key Engineering Materials 716 (October 2016): 464–71. http://dx.doi.org/10.4028/www.scientific.net/kem.716.464.

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In this study, unalloyed titanium (Gr.1) and deoxidized high phosphorus copper plates were joined through explosive welding process. Different stand-off distances were used to investigate their influence on the microstructure and mechanical properties of the clad fabricated at the same amount of explosive charge. Microstructures near-the-interface were examined with the use of scanning electron microscope equipped with energy dispersive X-ray spectrometer and then microhardness measurements were carried out on the clad. Microstructure examinations showed that with increasing stand-off distance

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Krishnasamy, Jayaprakash, Sathiskumar A. Ponnusami, Sergio Turteltaub, and Sybrand van der Zwaag. "Numerical Investigation into the Effect of Splats and Pores on the Thermal Fracture of Air Plasma-Sprayed Thermal Barrier Coatings." Journal of Thermal Spray Technology 28, no. 8 (2019): 1881–92. http://dx.doi.org/10.1007/s11666-019-00949-y.

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Abstract The effect of splat interfaces on the fracture behavior of air plasma-sprayed thermal barrier coatings (APS-TBC) is analyzed using finite element modeling involving cohesive elements. A multiscale approach is adopted in which the explicitly resolved top coat microstructural features are embedded in a larger domain. Within the computational cell, splat interfaces are modeled as being located on a sinusoidal interface in combination with a random distribution of pores. Parametric studies are conducted for different splat interface waviness, spacing, pore volume fraction and fracture pro

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Seo, Dong Yi, H. Saari, Peter Au та J. Beddoes. "Microstructure and Creep of γ-TiAl Containing β-Stabilizer". Materials Science Forum 539-543 (березень 2007): 1543–48. http://dx.doi.org/10.4028/www.scientific.net/msf.539-543.1543.

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Fully lamellar structures of powder metallurgy (PM), investment cast, and directionally solidified (DS) TiAl alloys containing β stabilizer were produced after stepped cool heat treatment, and interface β precipitates were formed after aging at 950°C. In addition, a columnar grain structure combined with a fully lamellar structure aligned with the load direction and interface β precipitates were formed by directional solidification and subsequent heat treatments. Creep test results of PM TiAl indicate that controlling the initial microstructures is also critical for balancing the primary and s

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Lei, Yinkai, Tianle Cheng, Tao Yang, William K. Epting, Harry W. Abernathy, and You-Hai Wen. "Modeling the Distribution of Oxygen Partial Pressure in the Electrolyte of Solid Oxide Cells and Its Implication on Microstructure Evolution in the Hydrogen Electrode." ECS Transactions 111, no. 6 (2023): 965–76. http://dx.doi.org/10.1149/11106.0965ecst.

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The distribution of oxygen partial pressure in the electrolyte has an important effect on the stability of solid oxide cells (SOCs). It is well known that the high oxygen partial pressure at the oxygen electrode and electrolyte interface causes delamination, while its effect in the hydrogen electrode (HE) has received comparatively little attention. The only existing model for the distribution of oxygen partial pressure in the electrolyte of SOC is proposed by Virkar et al., which is a one-dimensional model that does not consider the Butler-Volmer equation at triple phase boundary (TPB) nor th

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33

Yang, J.-M., and S. M. Jeng. "Interface and mechanical behavior of MoSi2-based composites." Journal of Materials Research 6, no. 3 (1991): 505–13. http://dx.doi.org/10.1557/jmr.1991.0505.

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MoSi2-based composites reinforced with particles, whiskers, and continuous fibers were fabricated using hot pressing and hot isostatic pressing techniques. The microstructure, interface compatability, and interfacial properties between the reinforcements and matrix are discussed. The microstructural parameters which control the mechanical behavior of the MoSi2 composites were characterized. The need for developing a satisfactory reinforced MoSi2 composite for high-temperature structural applications is also addressed.

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Li, Zhuo Ran, Bing Liu, Xiang Long Zhang, and Ji Cai Feng. "Microstructure and Mechanical Property of GH4169 Joints by Vacuum Diffusion Bonding." Advanced Materials Research 314-316 (August 2011): 1180–83. http://dx.doi.org/10.4028/www.scientific.net/amr.314-316.1180.

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Vacuum diffusion bonding characteristics of GH4169, interface bonding holes and mechanical properties of the joints were investigated. The experimental results without interlayer showed that, with the increasing of diffusion time and diffusion pressure in the range of 950-1150°C and 20-40MPa, the number and size of interface bonding holes decreased and the maximum tensile strength of the diffusion bonding joint was 658 MPa, but the discontinuous interface holes still existed. With the Cu interlayer, interfaces between the solid solution layer and the base metal were prone to intimate contact a

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35

Zhang, Jie, Byung-Won Min, Hai Gu, Guo-Qing Wu, Guo-Qing Dai, and Zhong-Gang Sun. "Grain Refinement and Mechanical Enhancement of Titanium Matrix Composites with Nickel-Coated Graphene Nanoflakes: Influence of Particle-Size Mismatch." Crystals 14, no. 6 (2024): 516. http://dx.doi.org/10.3390/cryst14060516.

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A novel type of titanium matrix composite (TMC) with a uniform network microstructure has been successfully fabricated by adjusting particle-size mismatch (Φ). This study can also improve the understanding of the effects of particle size on microstructure and mechanical properties, particularly in titanium matrix composites reinforced with graphite flakes (GNFs). Microstructural analysis reveals the absence of noticeable defects, and significant grain refinements have been realized. The experimental results indicate that the yield strength of the mismatched composite is improved by 24.75% comp

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Zhang, Man, Yue Bin Lin, Jian Qiang Lv, and Hai Lin Jiang. "Microstructure and Properties of Zn-Al Filler Metal Brazing Cu/Al Joint." Advanced Materials Research 311-313 (August 2011): 670–73. http://dx.doi.org/10.4028/www.scientific.net/amr.311-313.670.

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Microstructure and properties of Zn-xAl alloy were investigated, moreover, the strength and microstructure of the Cu/Al brazed joint had been studied. The results indicate that the massive microstructure is granular and fine when Al content is under 15wt.% in the cast microstructure of Zn-xAl filler metal. Meanwhile, the drawability properties of the filler metal is excellent. Thus, the massive microstructure become dendritic and coarse when Al content exceeds 15wt.%. At the same time, the drawability properties of the filler metal become bad. In the microstructure of the brazed joint, the int

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Christiansen, S., M. Albrecht, H. P. Strunk, H. Hornberger, P. M. Marquis, and J. Franks. "Mechanical properties and microstructural analysis of a diamond-like carbon coating on an alumina/glass composite." Journal of Materials Research 11, no. 8 (1996): 1934–42. http://dx.doi.org/10.1557/jmr.1996.0244.

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We investigate the mechanical and microstructural properties of a diamond-like carbon coating (DLC) which is deposited by plasma enhanced chemical vapor deposition (PECVD) onto an alumina/aluminosilicate glass composite used for biomedical applications. Ball-on-ring tests yield a fracture strength that is essentially influenced by the surface topology/roughness. The surface topology of the coating is investigated by atomic force microscopy (AFM). Tribology tests and nanoindentation represent the wear resistance and hardness; these are properties that are mainly influenced by the microstructura

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Zampini, Davide, Surendra P. Shah, and Hamlin M. Jennings. "Early age microstructure of the paste-aggregate interface and its evolution." Journal of Materials Research 13, no. 7 (1998): 1888–98. http://dx.doi.org/10.1557/jmr.1998.0268.

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The sequence of microstructural changes occurring at the wet paste-aggregate interface is documented at an age as early as 5 min using the environmental scanning electron microscope (ESEM). Unlike other microscopic techniques, the ESEM allows pastes of normal water: cement ratio to be observed at early ages without reducing the paste to a powder. Evolution of the paste-aggregate microstructure is followed up to an age of 24 h. The region adjacent to the aggregate surface contains a phase with a morphology referred to as a “sheaf of wheat” morphology. The same interfacial region in a 10-day-old

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Cheng, Z. Y., Jing Zhu, X. H. Liu, Xi Wang, and G. Q. Yang. "Microstructure of TiN films and interfaces formed by ion-beam-enhanced deposition and simple physical vapor deposition." Journal of Materials Research 10, no. 4 (1995): 995–99. http://dx.doi.org/10.1557/jmr.1995.0995.

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The microstructure and composition of TiN films, formed by ion beam enhanced deposition (IBED) with different energy (40 keV and 90 keV) xenon ion bombardment and by simple physical vapor deposition (hereafter S-PVD) without any ion beam enhancement, and the interfaces between TiN films and Si substrates have been studied by cross-sectional view analytical electron microscopy in this work. Both the IBED TiN films prepared by Xe+ bombardment with either 40 keV or 90 keV energy ions and the S-PVD TiN film consist of nanocrystals. The TEM observations in the S-PVD case reveal an amorphous layer a

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Wu, Yongjin, Guifu Ding, Yuan Zhu, Yan Wang, Rui Liu, and Yunna Sun. "Preparation of Highly Stable Polymer Microstructure with Enhanced Adhesion Strength by Pushpin-like Nano/Microstructure Array." Polymers 15, no. 4 (2023): 1015. http://dx.doi.org/10.3390/polym15041015.

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This polymer microstructure expands more available application, which is a milestone for the development of micro-electro-mechanical system devices towards intelligence and multifunction. Poor interface bonding between the polymer and Si or metal is a particular problem, which restricts the application and promotion of polymer materials. In this study, a transition strengthening layer is proposed to obtain a highly stable polymer microstructure by enhancing the interfacial adhesion strength. The transition strengthening layer is activated by a pushpin-like nano/microstructure array with microm

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Guedes, Anibal, Filomena Viana, Ana Maria Pires Pinto та Manuel F. Vieira. "Diffusion Brazing of a γ-TiAl Alloy Using Tini 67: Microstructural Evolution of the Interface". Materials Science Forum 587-588 (червень 2008): 425–29. http://dx.doi.org/10.4028/www.scientific.net/msf.587-588.425.

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A detail study focussing the microstructural evolution of the interfacial zone in the course of the processing of Ti-47Al-2Cr-2Nb joints using Tini 67 as filler alloy was carried out in this investigation. Experiments, aiming the understanding of the mechanisms that promote the melting of the braze alloy, were performed below the solidus temperature of the filler, at 750 and 900°C. Diffusion brazed samples were joined at 1000 and 1100°C, with no dwelling stage and subsequently quenched in water in order to frozen the microstructure formed at the bonding temperature. The interfaces were analyse

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Tian, Jiashen, Yan Dou, Qiong Nian, and Ryan J. Milcarek. "Solid Oxide Fuel Cells with 3D Inkjet Printing Modified LSM-YSZ Interface." ECS Transactions 109, no. 11 (2022): 51–61. http://dx.doi.org/10.1149/10911.0051ecst.

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The geometry of the electrode/electrolyte interface is critical to solid oxide fuel cell (SOFC) performance. Adding 3D microstructures on electrode/electrolyte interface may enhance the performance of SOFCs potentially. In this study, the pillar shape yttria-stabilized zirconia (YSZ) 3D microstructures with ~ 60 m to 90 m diameter were fabricated by 3D inkjet printing on the interface of electrolyte and cathode to increase the TPB area and enhance the connection between the dense YSZ electrolyte and mixed YSZ ionic conductor. Scanning Electron Microscopy (SEM) is utilized to assess the morph

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Wagner, W., A. Wiedenmann, W. Petry, A. Geibel, and H. Gleiter. "Magnetic microstructure of nanostructured Fe, studied by small angle neutron scattering." Journal of Materials Research 6, no. 11 (1991): 2305–11. http://dx.doi.org/10.1557/jmr.1991.2305.

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Small angle neutron scattering (SANS) was applied to achieve insight into the magnetic correlations in nanostructured Fe. The results confirm the expected microstructure involving ferromagnetic grains and a nonmagnetic or weakly magnetic interface region, the interfaces occupying about half the specimen volume. The SANS measurements further reveal that in nanostructured Fe the magnetic correlations are not confined to single grains, but are extended across the interfaces and result in the alignment of the magnetization over several hundreds of grains. An external field of 1.5 kOe is not suffic

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Lin, Chen, Yijun Chai, and Yueming Li. "Oxidation Simulation of Thermal Barrier Coatings with Actual Microstructures Considering Strength Difference Property and Creep-Plastic Behavior." Coatings 8, no. 10 (2018): 338. http://dx.doi.org/10.3390/coatings8100338.

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A scanning electron microscope (SEM) image based direct finite element (FE) mesh reconstruction method is employed to reflect microstructure features of thermal barrier coatings (TBC). The creep-plastic assumption of thermally grown oxide (TGO) scale and metallic bond coat (BC) as well as the strength difference (SD) property of ceramic top coat (TC) are considered to simulate the mechanical behavior. A diffusion oxidation model considering oxygen consumption is proposed to characterize TGO growth. The oxidation simulation of TBC is carried out under the consideration of actual microstructure

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Liu, Xu, Ruiling Jia, Huixia Zhang, Wenhua Cheng, and Xiwei Zhai. "EBSD Characterization of the Microstructure of 7A52 Aluminum Alloy Joints Welded by Friction Stir Welding." Materials 14, no. 21 (2021): 6362. http://dx.doi.org/10.3390/ma14216362.

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The microstructure and texture of materials significantly influence the mechanical properties and fracture behavior; the effect of microstructure in different zones of friction stir-welded joints of 7A52 aluminum alloy on fracture behavior was investigated in this paper. The microstructural characteristics of sections of the welded joints were tested using the electron backscattered diffraction (EBSD) technique. The results indicate that the fracture is located at the advancing side of the thermomechanically affected zone (AS-TMAZ) and the stir zone (SZ) interface. The AS-TMAZ microstructure i

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Qi, Xian Sheng, Xiang Yi Xue, Bin Tang, Chuan Yun Wang, Hong Chao Kou, and Jin Shan Li. "Microstructure Evolution at the Diffusion Bonding Interface of High Nb Containing TiAl Alloy." Materials Science Forum 817 (April 2015): 599–603. http://dx.doi.org/10.4028/www.scientific.net/msf.817.599.

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A series of diffusion bonding tests were conducted on high Nb containing TiAl alloy with duplex microstructure, the evolution of microstructure at bonding interface was investigated. Bonding process was performed by using vacuum hot press furnace at the temperature range from 850 to 1150°C with the pressure of 30MPa for 45min. The microstructure observation indicates that sound joint without unbounded area can be obtained when bonded above 950°C. Recrystallization happens in bonding interface when bonded at 1150°C and the recrystallized grain prior nucleated at bonding interface between the la

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Wang, Haijiang, Zhanqi Liu, Jianhui Liang, Wei Wei, and Guili Yin. "Effect of Vanadium Layer on Microstructure and Properties of TC4 (Ti-6Al-4V)/TiAl (Ti-48Al-2Cr-2Nb) Dissimilar Metals Produced by Laser Additive Manufacturing." Coatings 13, no. 9 (2023): 1638. http://dx.doi.org/10.3390/coatings13091638.

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Dissimilar metal samples of TC4/TiAl were successfully prepared by laser additive manufacturing (LAM) technology, with pure vanadium as the interlayer. The microstructure, phase composition, element distribution and mechanical properties at the interface of TC4/V and TiAl/V were analyzed by optical microscope (OM), scanning electron microscope (SEM) and backscattering diffraction (EBSD). The experimental results showed that the interface microstructure of TiAl/V is mainly composed of γ, α2 phase and V solid solution. The microstructure of the TC4/V interface is mainly composed of β-Ti and V so

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Li, Xiao Bing, and Ying Liu. "Contact Angle Model and Wettability of Regular Microsurfaces." Advanced Materials Research 199-200 (February 2011): 678–82. http://dx.doi.org/10.4028/www.scientific.net/amr.199-200.678.

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Wettability of solid surfaces is one of very important properties, which is governed by both the interface energy and the microstructures. In the paper, four microstructure surfaces were designed such as square concave, column concave, square convex and column convex. The contact angle and wettability of solid surfaces with regular microstructures were discussed for five contact angle models such as Young, Wenzel, Cassie, Cassie-Baxter and Wenzel-Cassie models. Then, the impacts of interfacial energy and microstructures to wettability were analyzed. The study shows that the character of hydrop

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Li, Ming, Zongan Luo, Hongyu Zhou, et al. "Interface Microstructure and Properties of 42CrMo/Cr5 Vacuum Billet Forged Composite Roll." Materials 18, no. 1 (2024): 122. https://doi.org/10.3390/ma18010122.

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Composite roll produced through casting methods typically remain in the as-cast state after forming. During the preparation process, extended exposure to high temperatures often results in microstructural coarsening at the interface and surface layers, restricting their mechanical performance. To overcome this limitation, we developed a novel vacuum billet forging process for the fabrication of composite rolls. By integrating numerical simulations with experimental validation, we successfully prepared a 42CrMo/Cr5 composite roll. The comprehensive characterization of the interface, including m

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Dai, Kaida, Baodi Lu, Pengwan Chen, and Jingjing Chen. "Modelling Microstructural Deformation and the Failure Process of Plastic Bonded Explosives Using the Cohesive Zone Model." Materials 12, no. 22 (2019): 3661. http://dx.doi.org/10.3390/ma12223661.

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A microstructure finite element method combining the cohesive zone model (CZM) is used to simulate the mechanical behavior, deformation, and failure of polymer-bonded explosive (PBX) 9501 under quasi-static loading. PBX 9501 consists of Cyclotetramethylene tetranitramine (HMX) filler particles with a random distribution packaged in a polymeric binder. The particle is treated as elastic and the binder as viscoelastic. Cohesive elements with a bilinear softening law are inserted into the particle/binder interface, the HMX particle, and the binder to study the interface’s debonding and failure ev

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