Results 91 to 100 of about 7,250,347 (351)

The polishing process of advanced ceramic balls using a novel eccentric lapping machine [PDF]

, 2005
The finishing process of advanced ceramic balls can be divided into two steps. The first step is lapping in which most of the stock from the ball is removed at a higher material removal rate.
Hadfield, M, Kang, J
core   +1 more source

Nanoparticle‐Coated X2CrNiMo17‐12‐2 Powder for Additive Manufacturing—Part II: Processability by Powder Bed Fusion of Metals Using a Laser Beam

Advanced Engineering Materials, EarlyView.
In this manuscript, the processability of X2CrNiMo17‐12‐2 powder coated with silicon carbide, silicon, and silicon nitride nanoparticles is investigated. The amount of nanoparticles varies from 0.25 to 1 vol%. By coating the powder feedstock material with nanoparticles, an enlargement of the process window and an increase in the build rate are achieved.
Nick Hantke, Tim R. Brocksieper, Arne Lüddecke, Tobias Grimm, Arno Kwade, Jan T. Sehrt   +5 more
wiley   +1 more source

Analysis and prediction on internal surface roughness of 316L stainless steel holes prepared by selective laser melting

Fenmo yejin jishu
The relationship between the hole radius and printing angle of the selected laser melting 316L stainless steels and the surface roughness was studied. A theoretical model of the formed structure and surface roughness was established.
LIU Zhijiang, FAN Zhou, HOU Tao, TIAN Bo, ZHANG Ziyang   +4 more
doaj   +1 more source

A real parametric characterisation of ex-service compressor blade leading edges [PDF]

, 2014
In-service the degradation of compressor blade leading edges can have a disproportional effect on compressor efficiency. The high surface curvature in this region makes quantifying the surface finish of this sensitive and prominent region difficult.
Blunt, Danzl, Ghenaiet, Goodhand, Hamed, Hang Lung, Jiang, Jiang, Karl Walton, Kurz, Leach, Leigh Fleming, Liam Blunt, Martin Goodhand, Stalder, Stout   +15 more
core   +1 more source

Nanoparticle‐Coated X2CrNiMo17‐12‐2 Powder for Additive Manufacturing – Part I: Surface, Flowability, and Optical Properties of SiC, Si, and Si3N4 Coated Metal Powders

Advanced Engineering Materials, EarlyView.
Herein, silicon‐based nanoparticle coatings on X2CrNiMo17‐12‐2 metal powder are presented. The coating process scale, process parameters, nanoparticle size (65–200 nm) as well as the coating amount are discussed regarding powder properties. The surface roughness affects the flowability, while reflectance depends on the coating material and surface ...
Arne Lüddecke, Nick Hantke, Harald Zetzener, Jan T. Sehrt, Arno Kwade   +4 more
wiley   +1 more source

Nanoscale Defect Formation on InP(111) Surfaces after MeV Sb Implantation

, 2005
We have studied the surface modifications as well as the surface roughness of the InP(111) surfaces after 1.5 MeV Sb ion implantations. Scanning Probe Microscope (SPM) has been utilized to investigate the ion implanted InP(111) surfaces.
Asima Pradhan, Chu W. K., Dipak Paramanik, Kamarou A., Katsumata H., Mehta G. K., Shikha Varma, Srivastava P. C., Wihl M.   +8 more
core   +1 more source

Surface morphology in engineering applications: Influence of roughness on sliding and wear in dry fretting [PDF]

, 2011
Influence of initial surface roughness on friction and wear processes under fretting conditions was investigated experimentally. Rough surfaces (Ra=0.15-2.52 [mu]m) were prepared on two materials: carbon alloy (AISI 1034) and titanium alloy (Ti-6Al-4V ...
Hisakado, Jiang, K.J. Kubiak, Kubiak, Kubiak, Kubiak, Lloyd, Proudhon, Sauger, Sedlacek, T.G. Mathia, T.W. Liskiewicz, Yuan   +12 more
core   +2 more sources

Low‐Activation Compositionally Complex Alloys for Advanced Nuclear Applications—A Review

Advanced Engineering Materials, EarlyView.
Low‐activation compositionally complex alloys (LACCAs) are advanced metallic materials primarily composed of low‐activation elements, offering advantages such as rapid compliance with operational standards and safe recyclability. This review highlights their potential for extreme high‐temperature irradiation environments as structural materials for ...
Yangfan Wang, Hanliang Zhu, Zhiyang Wang, Zhijun Qiu, Xiao Wang, Zengxi Pan, Hongtao Zhu, Mingxing Zhang, Huijun Li   +8 more
wiley   +1 more source

Surface and vertical dimensional changes of mineral trioxide aggregate and biodentine in different environmental conditions

Journal of Applied Oral Science, 2018
Surface changes in biological environments are critical for the evaluation of physical and biological activity of biomaterials. Objective: This study investigated surface alterations of calcium silicate-based cements after exposure to different ...
Hacer Aksel, Selen Küçükkaya Eren, Sevinc Askerbeyli Õrs, Eda Karaismailoğlu   +3 more
doaj   +1 more source

Effects of roughness on droplet apparent contact angles on a fiber [PDF]

, 2017
This paper reports on our investigation of the effects of surface roughness on the equilibrium shape and apparent contact angles of a droplet deposited on a fiber.
Amrei, M. M., Chase, G. G., Davoudi, M., Tafreshi, H. Vahedi   +3 more
core   +2 more sources