Results 121 to 130 of about 89,512 (318)

Quasi-Polish spaces

open access: yesAnnals of Pure and Applied Logic, 2013
We investigate some basic descriptive set theory for countably based completely quasi-metrizable topological spaces, which we refer to as quasi-Polish spaces. These spaces naturally generalize much of the classical descriptive set theory of Polish spaces to the non-Hausdorff setting.
openaire   +2 more sources

Atomically smooth gallium nitride surface prepared by chemical-mechanical polishing with different abrasives

open access: yes, 2014
For chemical-mechanical polishing of epitaxial gallium nitride (GaN), a two-step experiment method with two kinds of abrasives, aluminum oxide (Al2O3) and colloidal silica (SiO2), was put forward.
Zhou, Yan   +4 more
core  

The Effect of Polishing Tool Path on Polishing Parameters

open access: yes, 2011
The force-position decoupling technology based on Magnetorheological Fluid Torque Servo (MRT) can effectively solve the force-position coupling problem existed commonly in polishing processes. In the new polishing system, polishing force is not generated
Li Zhong Zhang   +3 more
core   +1 more source

Pyramidal Structures on Yttria‐Stabilized Zirconia after High Temperature Exposure at 1500°C: New Features on an Old Material

open access: yesAdvanced Engineering Materials, EarlyView.
New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold   +2 more
wiley   +1 more source

Towards Defect Phase Diagrams: From Research Data Management to Automated Workflows

open access: yesAdvanced Engineering Materials, EarlyView.
A research data management infrastructure is presented for the systematic integration of heterogeneous experimental and simulation data required for defect phase diagrams. The approach combines openBIS with a companion application for large‐object storage, automated metadata extraction, provenance tracking and federated data access, thereby supporting ...
Khalil Rejiba   +5 more
wiley   +1 more source

Research of path planning for polishing robot based on improved genetic algorithm

open access: yes, 2004
The path planning for traditional polishing robot is teach-play-back method. That is, after adjusting offset errors, the polishing robot repeats the same fixed program in a pre-determined path. Obviously, fixed program makes transferring the robot to new
Qu DK(曲道奎)   +2 more
core  

Mecanismos de remoção no processo de brunimento plano rotativo de porcelanatos [PDF]

open access: yes, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Programa de Pós-Graduação em Ciência e Engenharia de Materiais, Florianópolis, 2013.As propriedades estéticas e mecânicas diferenciadas do porcelanato possibilitaram sua ascensão no mercado
Mezari, Ramom Angelo
core  

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu   +10 more
wiley   +1 more source

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

open access: yesAdvanced Engineering Materials, EarlyView.
Three CoNiCrAlY/YSZ/MgAl2O4 abradable liner configurations on a nickel‐superalloy are evaluated by thermal‐gradient cycling and incursion tests. Laser ablation of the bondcoat and/or Y2O3‐stabilized ZrO2 (YSZ) intermediate layer increases mechanical interlocking and bonding for thick topcoats.
Hanna Heyl   +4 more
wiley   +1 more source

Robotic Grinding and Polishing Process Technology

open access: yes
Robotic abrasive finishing inclusive of both high grinding efficiency in material removal and excellent polishing quality in material surface is a new challenging technology to meet demands for today’s and future front-end technology products.
Tecelli Opoz, Tahsin, Chen, Xun
core  

Home - About - Disclaimer - Privacy