High-Temperature Flux Growth as a Tool for the Preparation of Mixed-Framework Metal-Y Silicates: A Systematic Evaluation of the Influence of Experimental Parameters

2017 ◽  
Vol 17 (2) ◽  
pp. 590-603 ◽  
Author(s):  
Maria Wierzbicka-Wieczorek ◽  
Patrick K. Krug ◽  
Uwe Kolitsch
Keyword(s):  
High Temperature ◽  
Systematic Evaluation ◽  
Flux Growth ◽  
Experimental Parameters ◽  
Mixed Framework

Gate Stack Engineering for High Temperature Silicon Carbide CMOS ICs

2015 ◽  
Vol 2015 (HiTEN) ◽  
pp. 000033-000036 ◽  
Author(s):  
M.H. Weng ◽  
A.D. Murphy ◽  
D.T. Clark ◽  
D.A. Smith ◽  
R.F. Thompson ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
High Temperature ◽  
Elevated Temperatures ◽  
Systematic Evaluation ◽  
Process Conditions ◽  
Operating Characteristics ◽  
Gate Stack ◽  
Metal Insulator ◽  
Semiconductor Interfaces

The potential to thermally grow SiO2 on silicon carbide has resulted in it becoming the technology of choice to realise high temperature CMOS circuits. The challenge to achieve a high quality gate stack relies on engineering the metal-insulator-semiconductor interfaces to enable reliable high temperature functionality. Here we describe the effect of different process conditions for the formation of the dielectric layer on the characteristics of the resulting devices. The operating characteristics at elevated temperatures depend critically on the quality of the gate stack. Therefore a systematic evaluation of the intrinsic properties of the gate stack and data from reliability tests are needed.

Progress on Facilities and Methodology to Evaluate Abradable Seal Coatings

2013 ◽  
Vol 690-693 ◽  
pp. 1992-1998
Author(s):  
Qiu Yuan Lu ◽  
Jie Shen ◽  
Yue Guang Yu ◽  
Xian Jing Ren ◽  
Hai Jun Xuan ◽  
...  
Keyword(s):  
High Temperature ◽  
Gas Turbine ◽  
Working Conditions ◽  
Analytical Methods ◽  
Turbine Performance ◽  
Detection Technology ◽  
Experimental Parameters ◽  
Temperature Combustion ◽  
Combustion Region ◽  
High Temperature Combustion

To improve gas turbine performance, it is essential to decrease back flow gases in the high-temperature combustion region of the turbo machine by reducing the shroud/rotor gap. An abradable seal coating will function effectively. The present work described an advanced detection technology and test rigs to study abradability of the seal coatings. Several early used analytical methods were also reviewed in the work as comparison,like NASAPWA and Sulzer Innotec, have developed abradable test rigs and specified different experimental parameters by simulating the determined working conditions. Thence, suggestions to further develop evaluation methods for seal coatings were proposed and discussed.

Flux growth of 0.94[Na0.5K0.5NbO3]–0.06LiNbO3piezo-/ferroelectric crystals for long duration and high temperature applications

CrystEngComm ◽  
2014 ◽  
Vol 16 (30) ◽  
pp. 7004 ◽  
Author(s):  
Geeta Ray ◽  
Nidhi Sinha ◽  
Sonia Bhandari ◽  
Budhendra Singh ◽  
Igor Bdikin ◽  
...  
Keyword(s):  
High Temperature ◽  
Flux Growth ◽  
Ferroelectric Crystals ◽  
Long Duration ◽  
Temperature Applications

NH3-Assisted Flux Growth of Cube-like BaTaO2N Submicron Crystals in a Completely Ionized Nonaqueous High-Temperature Solution and Their Water Splitting Activity

2015 ◽  
Vol 15 (9) ◽  
pp. 4663-4671 ◽  
Author(s):  
Mirabbos Hojamberdiev ◽  
Kunio Yubuta ◽  
Junie Jhon M. Vequizo ◽  
Akira Yamakata ◽  
Shuji Oishi ◽  
...  
Keyword(s):  
High Temperature ◽  
Water Splitting ◽  
Flux Growth ◽  
High Temperature Solution ◽  
Temperature Solution

scholarly journals Pyrolysis of wood at high temperature: The influence of experimental parameters on gaseous products

2011 ◽  
Vol 92 (5) ◽  
pp. 837-844 ◽  
Author(s):  
J.-M. Commandré ◽  
H. Lahmidi ◽  
S. Salvador ◽  
N. Dupassieux
Keyword(s):  
High Temperature ◽  
Gaseous Products ◽  
Experimental Parameters

High Temperature Corrosion of the Si-Mo Cast Iron in Exhaust Atmosphere

2008 ◽  
Vol 595-598 ◽  
pp. 743-751 ◽  
Author(s):  
Kamel Dawi ◽  
Jérôme Favergeon ◽  
Gérard Moulin
Keyword(s):  
Cast Iron ◽  
High Temperature ◽  
Corrosion Products ◽  
Critical Conditions ◽  
Spheroidal Graphite ◽  
Exhaust Gas ◽  
Spheroidal Graphite Cast Iron ◽  
Graphite Cast Iron ◽  
Gas System ◽  
Experimental Parameters

The SiMo cast iron is a spheroidal graphite cast iron which major alloying elements are silicon and molybdenum. This alloy is currently used in diesel engines as part of exhaust gas system like exhaust manifold or turbocharger housing components. It is then designed to work at high temperature under corrosive atmosphere. However, this alloy presents sometimes unusual high corrosion rates, and it is thus advisable to define the critical conditions leading to this type of problem. In the present study, the SiMo cast iron is tested in complex atmospheres containing N2, O2, SO2, CO2 and H2O in a temperature range lying between 300°C and 600°C. SEM observations and EDX and XRD analyses allow to qualify the nature of the corrosion products. Some thermodynamic calculations complete the experimental results. Three experimental parameters are especially studied in this work: the temperature of the isothermal corrosion tests, the presence of water vapour and the SO2 content in the gas mixture. The main results show that the corrosion products are metallic sulphides, sulfates and oxides. When sulphides and / or sulfates are present, the corrosion scale does not ensure a sufficient protection of the substrate and it is necessary to find conditions where only oxides are present. Such conditions are obtained for the highest temperature used in this study (600°C), or with highly oxidant atmospheres.

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