Optimization of a continuous roll-to-roll reactor for atmospheric plasma surface treatment using a vaiable gap glow discharge plasma

2006 ◽  
Author(s):  
T. Bonds ◽  
S. Noorgostar ◽  
J.R. Roth
Keyword(s):  
Glow Discharge ◽  
Surface Treatment ◽  
Discharge Plasma ◽  
Atmospheric Plasma ◽  
Glow Discharge Plasma ◽  
Plasma Surface ◽  
Roll To Roll ◽  
Plasma Surface Treatment

scholarly journals Evaluation of the Effect of Glow Discharge Plasma Surface Treatment on Bonding Cements to Zirconia

2018 ◽  
Vol 12 (1) ◽  
pp. 846-855
Author(s):  
Abdulelah M. Binmahfooz ◽  
Ghadeer I. Basunbul ◽  
Aws S ArRejaie
Keyword(s):  
Glow Discharge ◽  
Surface Treatment ◽  
Discharge Plasma ◽  
Glow Discharge Plasma ◽  
Cohesive Failure ◽  
Luting Agent ◽  
Plasma Surface Treatment ◽  
Adhesion Failure ◽  
Alternative Solutions

Background: The major difference in the chemical composition of Y-TZP ceramics, as compared with conventional porcelain, led researchers to develop alternative solutions for achieving durable and long term bonding with the zirconia surface. Objective: The study aims to evaluate the effects of glow discharge treatment on the bonding between cement and zirconia. Methods: The zirconia rings and rods were prepared with the Zirconia Y-TZP powder and TZ-3YSB-E (Tosoh-Zirconia) through auto-mix to investigate the glow discharge and thermo-cycling. An orientation Teflon mold was used to centralize each rod into the zirconia ring, and aided as a cementation jig during the cementation procedure. Results: Cohesive failure (2/3 or more of luting agent remained on the zirconia surface) has been majorly observed with RelyX Ultimate, while adhesion failure (less than 1/3 of the luting agent remained on the zirconia surface) has been primarily observed in Ketac-Cem. Mixed failure was observed among the three specimen including Rely X Unicem 2, Multilink Auto-mix and Ceramir. Conclusion: The glow discharge surface treatment procedure had a major impact on bond strength to zirconia.

Improving sensing properties of entangled carbon nanotube-based gas sensors by atmospheric plasma surface treatment

2020 ◽  
Vol 232 ◽  
pp. 111403 ◽  
Author(s):  
Neelakandan M. Santhosh ◽  
Aswathy Vasudevan ◽  
Andrea Jurov ◽  
Anja Korent ◽  
Petr Slobodian ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Surface Treatment ◽  
Gas Sensors ◽  
Atmospheric Plasma ◽  
Plasma Surface ◽  
Sensing Properties ◽  
Plasma Surface Treatment

scholarly journals Systematic Investigation of the Temperature Field in Atmospheric Plasma Processing (APP)

2016 ◽  
Vol 879 ◽  
pp. 1870-1875
Author(s):  
M. Stummer ◽  
P. Stögmüller ◽  
T. Eichinger ◽  
Norbert Enzinger
Keyword(s):  
Temperature Field ◽  
Surface Treatment ◽  
Atmospheric Plasma ◽  
Temperature Fields ◽  
Feed Speed ◽  
Measured Temperature ◽  
Plasma Arc ◽  
Ir Camera ◽  
Plasma Surface ◽  
Plasma Surface Treatment

The application of functional layers has increased constantly over the last decades [1]. Coating processes like plasma spraying allow efficient processing of metal or oxide particles, and have already found their application in various sectors of industries. Ultra fine cleaning, surface activation or surface modification with the plasma arc are currently also under investigation. In the scope of this work the influence of four different main parameters - current, working distance, feed speed and gas flow - on the arc temperature field was investigated. Due to the complex and different interactions of these parameters on the temperature field, the temperature distribution in steel and aluminium sheets was systematically examined. Furthermore, the relationship between the measured surface temperatures and the wettability of the substrates is being discussed. To generate the required data, two different experimental setups were used. First, the spatial heat distribution of the plasma arc was measured with a special arrangement of thermocouples. Second, the temperature fields during the plasma surface treatment of DC01 and Al 6082 substrates was measured. In addition to measurements with NiCr-Ni thermocouples an investigation with an IR-Camera was performed. After the plasma surface treatment, the resulting wettability was determined by contact angle measurement. The obtained results and especially the measured temperature fields will be used in a next step to validate numerical simulations with SYSWELD and ANSYS CFX, which will be used for process optimization.

scholarly journals Enhancement of Osteoblastic-Like Cell Activity by Glow Discharge Plasma Surface Modified Hydroxyapatite/β-Tricalcium Phosphate Bone Substitute

Materials ◽  
2017 ◽  
Vol 10 (12) ◽  
pp. 1347 ◽  
Author(s):  
Eisner Salamanca ◽  
Yu-Hwa Pan ◽  
Aileen Tsai ◽  
Pei-Ying Lin ◽  
Ching-Kai Lin ◽  
...  
Keyword(s):  
Glow Discharge ◽  
Tricalcium Phosphate ◽  
Bone Substitute ◽  
Discharge Plasma ◽  
Cell Activity ◽  
Glow Discharge Plasma ◽  
Plasma Surface ◽  
Surface Modified
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