Results 81 to 90 of about 220,572 (314)

Performance Analysis of Abradable Coating Systems for Aircraft Gas Turbines

Advanced 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, Daniel Emil Mack, Martin Tandler, Susanne Schrüfer, Robert Vaßen   +4 more
wiley   +1 more source

Analysis of a Thermal Plasma Diamond CVD System

Acta Polytechnica, 2001
This paper deals with the analysis of a typical engineering system utilizing thermal plasma - a system for Diamond Chemical Vapor Deposition. It defines the system - a slightly overexpanded plasma jet impinging at a downstream -located substrate ...
D. Kolman
doaj  

Steam Plasma Flows Generated in Gerdien Arc: Environment for Energy Gas Production from Organics and for Surface Coatings

Journal of Fluid Science and Technology, 2011
Electric arc stabilized by a vortex of water (Gerdien arc) is used in a special type of plasma torch for generation of thermal plasma jet with extreme plasma parameters.
Milan HRABOVSKY
doaj   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Numerical analysis of in-flight particles in plasma jet with an externally applied magnetic field

Journal of Fluid Science and Technology, 2016
In this work, three-dimensional, time-dependent magnetohydrodynamic (MHD) simulations of a direct-current (dc) plasma spray with an externally applied magnetic field are performed, and also the trajectories and heating histories of in-flight particles in
Hiroki SAITO, Yusuke NAKANE, Takayasu FUJINO, Hidemasa TAKANA   +3 more
doaj   +1 more source

Affecting the Properties of Copper–Graphene Electroconductive Composite by Severe Plastic Deformation

Advanced Engineering Materials, EarlyView.
Copper‐based composites enhanced with carbon feature convenient mechanical properties and favorable electric conductivity. Processing via deformation and thermomechanical treatments can introduce advantageous microstructures further enhancing their performance. Herein, copper–graphene powder‐based composites are directly consolidated via rotary swaging
Radim Kocich, Lenka Kunčická, Pavel Czernek, Zifan Wang   +3 more
wiley   +1 more source

A non-equilibrium simulation of thermal constriction in a cascaded arc hydrogen plasma [PDF]

, 2014
The cascaded arc hydrogen plasma of Pilot-PSI is studied in a non-LTE model. We demonstrate that the effect of vibrationally excited molecules on the heavy-particle-assisted dissociation is crucial for obtaining thermal constriction.
Kroesen, G. M. W., Peerenboom, K.S. C., Goedheer, W.J., Kroesen, G.M. W., van Dijk, J., Peerenboom, K.S.C., W. J. Goedheer, Peerenboom, K. S. C., Kroesen, G.M.W., Dijk, van, J.   +9 more
core   +1 more source

Investigation of temperature characteristics of multiphase AC arc by high-speed visualization

Journal of Fluid Science and Technology, 2017
The objective of the present study is to understand fluctuation phenomena in a multiphase AC arc as a heat source for material processing based on the high-speed visualization technique of the temperature field.
Manabu TANAKA, Tomoyuki IMATSUJI, Taro HASHIZUME, Takayuki WATANABE, Hisao NAGAI, Takeshi KOIWASAKI, Takafumi OKUMA   +6 more
doaj   +1 more source

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

Advanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova, Steffen Brinckmann, Ruth Schwaiger   +2 more
wiley   +1 more source

Development of EB-PVD TBC'S : the role of deposition temperature and plasma assistance [PDF]

, 1995
Gas turbine manufacturers have achieved continuingly improved engine efficiency and thrust-to-weight ratio by designing with increased Turbine Entry Temperature (TET).
Jaslier, Yann
core