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| 1 | The effect of laser surface texturing on the tribological performance of different Sialon ceramic phases显示文摘A tribological performance was carried out on different types of hot press Sialon ceramics regarding the phases, i.e., the α-Sialon phase, the β-Sialon phase, and the α/β-Sialon composite phase. The different phases of Sialon ceramics were analyzed by XRD patterns. For the tribological performance, the Sialon ceramics were laser textured and the starved lubrication method was applied with different dimple pitches under a load of 10 N at room temperature. The material having a dimple pitch of 200 mm shows the lowest coefficient of friction. The α/β-Sialon composite phase shows the least coefficient of friction i.e. 0.04 and 0.1 for the textured and polished(without being textured) samples, respectively. The Sialon ceramics show mild wear and therefore, the wear rate of the steel ball(mating partner) was taken into account for the wear analysis. The α-Sialon phase having a higher hardness shows the least wear in comparison to the α/β-Sialon composite phase and the β-Sialon phase. | Bhupendra Joshi Khagendra Tripathi Gobinda Gyawali Soo Wohn Lee | 2016 | Progress in Natural Science:Materials International2016，26，4： | 8 |
| 2 | Mechanical Properties and Microstructure of Bionic Non-Smooth Stainless Steel Surface by Laser Multiple Processing显示文摘Laser multiple processing, i.e. laser surface texturing and then Laser Shock Processing (LSP), is a new surface processingtechnology for the preparation of bionic non-smooth surfaces. Based on engineering bionics, samples of bionic non-smoothsurfaces of stainless steel 0Crl 8Ni9 were manufactured in the form of reseau structure by laser multiple processing. The mechanicalproperties (including microhardness, residual stress, surface roughness) and microstructure of the samples treated bylaser multiple processing were compared with those of the samples without LSP The results show that the mechanical propertiesof these samples by laser multiple processing were clearly improved in comparison with those of the samples without LSP Themechanisms underlying the improved surface microhardness and surface residual stress were analyzed, and the relations betweenhardness, comnressive residual stress and roughness were also presented. | Jin-zhong Lu~(1,2) ,Chao-jun Yang~(1,2) ,Lei Zhang~(1,2),Ai-xin Feng ~(1,2) ,Yin-fang Jiang~(1,2)1.School of Mechanical Engineering,Jiangsu University,Zhenjiang 212013,P.R.China2.Jiangsu Provincial Key Laboratory for Science and Technology of Photon Manufacturing,Zhenjiang 212013,P.R.China | 2009 | Journal of Bionic Engineering2009，6，2： | 7 |
| 3 | Picosecond Laser Surface Texturing of a Stavax Steel Substrate for Wettability Control显示文摘In this investigation,a picosecond laser was employed to fabricate surface textures on a Stavax steel substrate,which is a key material for mold fabrication in the manufacturing of various polymer products.Three main types of surface textures were fabricated on a Stavax steel substrate:periodic ripples,a two-scale hierarchical two-dimensional array of micro-bumps,and a micro-pits array with nanoripples.The wettability of the laser-textured Stavax steel surface was converted from its original hydrophilicity into hydrophobicity and even super-hydrophobicity after exposure to air.The results clearly show that this super-hydrophobicity is mainly due to the surface textures.The ultrafast laserinduced catalytic effect may play a secondary role in modifying the surface chemistry so as to lower the surface energy.The laser-induced surface textures on the metal mold substrates were then replicated onto polypropylene substrates via the polymer injection molding process.The surface wettability of the molded polypropylene was found to be changed from the original hydrophilicity to superhydrophobicity.This developed process holds the potential to improve the performance of fabricated plastic products in terms of wettability control and easy cleaning. | Xincai Wang Hongyu Zheng Yinchi Wan Wenhe Feng Yee Cheong Lam | 2018 | Engineering2018，4，6： | 4 |
| 4 | Rubber plunger surface texturing for friction reduction in medical syringes显示文摘Friction is a genuine issue in the use of many medical devices involving rubbery materials such as plungers in medical syringes. This paper presents a new direction for the reduction of friction in medical syringes based on surface texturing of the rubber plunger. The specimens were prepared by casting poly(vinylsiloxane)(PVS) rubber into a pre-fabricated negative template obtained by 3D printing. Friction tests were performed on a home-made test-rig. It was clearly shown that friction resistance can be considerably manipulated when using textured plungers. | Haytam KASEM Harel SHRIKI Lihi GANON Michael MIZRAHI Kareem ABD-RBO Abraham JDOMB | 2019 | Friction2019，7，4： | 2 |
| 5 | A unified computational model for surface texturing process of strip casting rollers显示文摘A new unified computational method is proposed for modeling the relationship between the parameters of the high-speed particle-impact texturing process and the final surface morphology of the casting roller. The whole surface-texturing process is divided into three parts. The first part is the acceleration process of particles inside and outside the nozzle,which can be analyzed using the computational fluid dynamics method to obtain the particle impact velocities. The second part is a simulation of the bombardment process of particles onto the roller surface using the LS-DYNA software as the analysis tool and the results obtained in the first part as input parameters. The last part is the continuously random impact process of particles on the casting roller surface to form a functional surface,which is characterized by a simplified roughness model. Finally,the above three parts are combined to establish a unified computational model,the performance of which is successfully verified in a series of experiments. | ZHANG Yujun YU Yan LIANG Yongli YE Changhong FANG Yuan | 2019 | Baosteel Technical Research2019，13，2： | 0 |
| 6 | Laser Texturing of Rolled Surfaces显示文摘To reduce friction and improve clarity of steel surfaces, laser texturing was used to produce knownsurface roughness profile on rolled surfaces using a Nd:YAG laser. Laser texturing process was analyzed toselect the laser parameters. The surface roughness hardness and abrasion resistance were then measured andanalyzed. The results show that the surface roughness is harder than the matrix, which fits for the requirementsof laser texturing. The surface roughness also has good abrasion resistance. The intensity and distribution ofthe single pulse are the key points affecting the surface roughness profile. | 何云峰 都东 刘莹 岁波 熊丽娟 | 2003 | Tsinghua Science and Technology2003，8，2： | 0 |
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