Results 21 to 30 of about 421,221 (283)

The Effect of Fabrication Error on the Performance of Mid-Infrared Metalens with Large Field-of-View

open access: yesNanomaterials, 2023
Mid-infrared large field-of-view (FOV) imaging optics play a vital role in infrared imaging and detection. The metalens, which is composed of subwavelength-arrayed structures, provides a new possibility for the miniaturization of large FOV imaging ...
Aoling Li   +4 more
doaj   +1 more source

Evaluation of superalloy heavy-duty grinding based on multivariate tests [PDF]

open access: yes, 2007
The quality and economy of grinding depend on proper selection of grinding conditions for the materials to be ground. In order to evaluate the effect of heavy-duty grinding, a new performance index, which includes specific material removal rate, size ...
Kalpakjian S.   +6 more
core   +1 more source

Angular momentum holography via a minimalist metasurface for optical nested encryption

open access: yesLight: Science & Applications, 2023
Metasurfaces can perform high-performance multi-functional integration by manipulating the abundant physical dimensions of light, demonstrating great potential in high-capacity information technologies. The orbital angular momentum (OAM) and spin angular
Hui Yang   +9 more
doaj   +1 more source

Improved wear properties of GCr15 steel balls by fabricating a surface Ti diffusion layer using mechanical alloying and NH3·H2O treatment

open access: yesJournal of Materials Research and Technology, 2023
This work used mechanical alloying combined with NH3·H2O treatment to strengthen GCr15 steel balls. First, GCr15 steel balls with a Ti coating were fabricated by mechanical alloy considering two structures of jars: one is the ordinary jar and the second ...
Xincheng Xie   +7 more
doaj   +1 more source

DEVELOPMENT OF WOOD GRINDING 1. GRINDING MODEL

open access: yesCellulose Chemistry and Technology, 2020
The aim of this study was to develop and test a model expected to be useful in interpretation of stone grinding of wood. Since stone grinding has been in use for about two centuries, it is surprising that some grinding mechanisms still remain undiscovered.
openaire   +1 more source

Ranking of vitrified grinding wheel parameters by using analytical hierarchical process (AHP) for surface roughness of work piece in grinding operation [PDF]

open access: yes, 2017
Objective of grinding process is to generate high quality surface finish on work piece. There are many parameters which influence on the work piece roughness.
Bhalerao, Y.J., Patil, S.S.
core   +1 more source

Surface microstructural changes of spark plasma sintered zirconia after grinding and annealing [PDF]

open access: yes, 2016
Spark plasma sintered zirconia (3Y-TZP) specimens have been produced of 140 nm 372 nm and 753 nm grain sizes by sintering at 1250 °C, 1450 °C and 1600 °C, respectively.
Akhtar, Farid   +5 more
core   +2 more sources

On the interest of using degradable fillers in co-ground composite materials [PDF]

open access: yes, 2009
The article presents the results of a study whose objective is to show the interest of using vegetable and biodegradable fillers in composite materials.
Le Bolay, Nadine   +2 more
core   +3 more sources

Novel designed mechanical-mechanochemical synergistic micro-grinding technology and compounded abrasive micro-grinding tools

open access: yesJournal of Materials Research and Technology, 2023
The mechanical and mechanochemical synergistic micro-grinding technology was proposed for grinding hard and brittle materials, especially for fused silica micro parts in this work.
Wei Li   +6 more
doaj   +1 more source

Simulation of Grinding Surface Creation – A Single Grit Approach [PDF]

open access: yes, 2010
The paper presents an investigation of grinding material removal mechanism using finite element method. Understanding of grinding removal mechanism relies on the investigation of material removal by each individual grain.
Chen, Xun, Opoz, Tahsin Tecelli
core   +1 more source

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