scholarly journals High performance mid-temperature selective absorber based on titanium oxides cermet deposited by direct current reactive sputtering of a single titanium target

2016 ◽  
Vol 119 (4) ◽  
pp. 045102 ◽  
Author(s):  
Lu Tang ◽  
Feng Cao ◽  
Yang Li ◽  
Jiming Bao ◽  
Zhifeng Ren
Keyword(s):  
Direct Current ◽  
High Performance ◽  
Reactive Sputtering ◽  
Titanium Oxides ◽  
Titanium Target

EXEELFS (Extended Electron Energy Loss Fine Structure) Study of Tin Grown by the DC Sputtering Technique.

2000 ◽  
Vol 6 (S2) ◽  
pp. 226-227
Author(s):  
Duarte-Moller A. ◽  
F. Espinosa-Maganña ◽  
R. Martínez-S´anchez ◽  
O. Contreras
Keyword(s):  
Energy Loss ◽  
Direct Current ◽  
Physical Vapor Deposition ◽  
Standard Procedure ◽  
High Energy ◽  
Structure Study ◽  
Voltage Source ◽  
Titanium Target ◽  
High Voltage Source ◽  
Mechanical Pump

Titanium nitride coatings were grown in a physical vapor deposition system assisted by a direct current reactive magnetron sputtering technique. The vacuum chamber was evacuated with a mechanical pump and cryopump to a base pressure of 10-7 Torr. The Sputtering was performed with a direct current high voltage source (0-1 Kev and 1 A) on a titanium target (99.98% purity). The titanium target was sputtered with a high purity argon -nitrogen mixture. The films were deposited on monocrystalline silicon (mc-Si) (111) substrates at different nitrogen partial pressures from 0.08 mTorr to 1.5 mTorr. Total pressure, power applied to target and substrate temperature were keep constant in all the experiments.EXEELFS analysis were done using the standard procedure [1,2]. In this case, we are find that the atomic concentration is in good agreement with the respective established stoichioinetry N/T=0.99. Figure 1 shows the window of high energy loss where appears their respective N K-edge and Ti -L23.

Advanced generation of rotatable magnetron technology for high performance reactive sputtering

2006 ◽  
Vol 502 (1-2) ◽  
pp. 15-21 ◽  
Author(s):  
S.J. Nadel ◽  
P. Greene ◽  
J. Rietzel ◽  
M. Perata ◽  
L. Malaszewski ◽  
...  
Keyword(s):  
High Performance ◽  
Reactive Sputtering ◽  
Advanced Generation

High performance alumina films prepared by direct current plus pulse anodisation

2014 ◽  
Vol 30 (7) ◽  
pp. 455-459 ◽  
Author(s):  
X.X. Zhao ◽  
G.Y. Wei ◽  
X.F. Meng ◽  
A. Zhang
Keyword(s):  
Direct Current ◽  
High Performance ◽  
Alumina Films

Trace Analysis and Speciation for Methylated Organotins by HPLC-Hydride Generation-Direct Current Plasma Emission Spectroscopy (HPLC-HY-DCP)

1985 ◽  
Vol 39 (6) ◽  
pp. 960-968 ◽  
Author(s):  
Ira S. Krull ◽  
Kenneth W. Panaro
Keyword(s):  
Direct Current ◽  
Emission Spectroscopy ◽  
High Performance ◽  
Hydride Generation ◽  
Detection Limits ◽  
Metal Species ◽  
Tuna Fish ◽  
Direct Current Plasma ◽  
Fish Samples ◽  
On Line

Total tin determinations can be accomplished at trace levels (10–25 ppb) by a continuous on-line hydride generation (HY), followed by direct current plasma (DCP) emission spectroscopy (HY-DCP). This approach is applicable for organotin compounds such as mono-, di-, and trimethyltin chloride, as well as stannous and stannic cations. HY-DCP methods of total tin analysis have been applied to a number of spiked and actual samples. Detection limits, calibration plots, sensitivities, and related analytical parameters have been evaluated. Organotin analysis and speciation can be accomplished by the interfacing of this HY-DCP step with high-performance liquid chromatography (HPLC), with the use of a polymeric PRP-1 type column with an acidic, ionic mobile phase, usually containing a suitable ion-pairing reagent. The overall speciation approach, HPLC-HY-DCP, has been evaluated with regard to separation conditions; detection limits; sensitivities; calibration plots; and applications to spiked water, clam juice, seawater, and tuna fish samples. The results suggest the suitability and reliability of this HPLC-HY-DCP approach for individual tin species. Other metal species capable of forming a hydride derivative on-line, in a continuous fashion, may also be suitable for speciation by HPLC-HY-DCP.

Modeling reactive sputtering process in symmetrical planar direct current magnetron systems

1992 ◽  
Vol 71 (10) ◽  
pp. 5173-5182 ◽  
Author(s):  
C. D. Tsiogas ◽  
J. N. Avaritsiotis
Keyword(s):  
Direct Current ◽  
Reactive Sputtering

Preparation of High Performance SiNX Films Deposited by Reactive Sputtering and PECVD at Low Temperatures

2015 ◽  
Author(s):  
M. Sato ◽  
M.B. Takeyama ◽  
Y. Nakata ◽  
Y. Kobayashi ◽  
T. Nakamura ◽  
...  
Keyword(s):  
Low Temperatures ◽  
High Performance ◽  
Reactive Sputtering

Output Feedback Robust Control of Direct Current Motors With Nonlinear Friction Compensation and Disturbance Rejection

2014 ◽  
Vol 137 (4) ◽  
Author(s):  
Jianyong Yao ◽  
Zongxia Jiao ◽  
Dawei Ma
Keyword(s):  
Direct Current ◽  
High Performance ◽  
Controller Design ◽  
High Accuracy ◽  
Friction Model ◽  
Practical Implementation ◽  
Accuracy Control ◽  
External Disturbances ◽  
Output Tracking ◽  
Dc Motors

High accuracy tracking control of direct current (DC) motors is concerned in this paper. A continuously differentiable friction model is adopted to account for the friction nonlinearities, which allows more flexible and suitable practical implementation. Since only output signal is available for measurement, an extended state observer (ESO) is designed to provide precise estimates of the unmeasurable state together with external disturbances, which facilitates the controller design without any transformations. The global stability of the controller is ensured via a certain robust feedback law. The resulting controller theoretically guarantees a prescribed tracking performance in general, while achieving asymptotic output tracking in the absence of time-varying disturbances, which is very important for high accuracy control of motion systems. Comparative experimental results are obtained to verify the high-performance nature of the proposed control strategy.

Sign in / Sign up

Export Citation Format

Share Document