Mesoporous and Macroporous Brookite Thin Films Having a Large Thermal Stability Range

Langmuir ◽  
2012 ◽  
Vol 28 (16) ◽  
pp. 6706-6713 ◽  
Author(s):  
Kevin R. Moonoosawmy ◽  
Hannelore Katzke ◽  
Martha Es-Souni ◽  
Matthias Dietze ◽  
Mohammed Es-Souni
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Stability Range ◽  
Thermal Stability Range

The thermal stability range and magnetic properties of U-type hexaferrites

2004 ◽  
Vol 272-276 ◽  
pp. E1817-E1819 ◽  
Author(s):  
Darja Lisjak ◽  
Miha Drofenik
Keyword(s):  
Thermal Stability ◽  
Magnetic Properties ◽  
Stability Range ◽  
Thermal Stability Range

scholarly journals Ionic Liquids in Microemulsions-A Concept To Extend the Conventional Thermal Stability Range of Microemulsions

2009 ◽  
Vol 16 (3) ◽  
pp. 783-786 ◽  
Author(s):  
Oliver Zech ◽  
Stefan Thomaier ◽  
Agnes Kolodziejski ◽  
Didier Touraud ◽  
Isabelle Grillo ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Ionic Liquids ◽  
Stability Range ◽  
Thermal Stability Range

Europium and Cesium Ion Immobilization in Crystalline Hosts with Magnetoplumbite or Related Type Structures

1991 ◽  
Vol 257 ◽  
Author(s):  
J. Thery ◽  
C. Borel ◽  
D. Vivien
Keyword(s):  
Thermal Stability ◽  
Molten Salt ◽  
Type Structure ◽  
Partial Substitution ◽  
Ionic Exchange ◽  
Stability Range ◽  
Cesium Ion ◽  
Synthesis Procedure ◽  
Nitric Solution ◽  
Thermal Stability Range

ABSTRACTThis study deals with the incorporation of Eu3+ ions in aluminates with magnetoplumbite (MP) or mixed β alumina - MP type structure. The synthesis procedure is the coprecipitation from a nitric solution. Partial substitution of Eu3+ byLa3+ increases the thermal stability range of the phases. In these structuresEu3+ occupies several sites and in the case of Na+ containing phases, Eu3+ and Na+ coexist at some mirror planes. Some results concerning Cs+ ion immobilization in mixed β - MP structures, by ionic exchange in molten salt are also reported.

Effects of Temperature on Formation of Insolubles in Aviation Fuels

1997 ◽  
Author(s):  
Walter J. Balster ◽  
E. Grant Jones
Keyword(s):  
Thermal Stability ◽  
Heat Exchanger ◽  
Stability Range ◽  
Surface Carbon ◽  
Single Pass ◽  
Effects Of Temperature ◽  
Thermal Stability Range

Ten aviation turbine fuels (five Jet-A fuels, three JP-5, one JP-8, and one JPTS) were stressed at 185 and 225°C in a single-pass heat exchanger. On the basis of several criteria applied at 185°C, these fuels cover a broad thermal-stability range from lesser-quality fuels to the most stable JPTS fuel. Three of these fuels contain significant concentrations of dissolved metal (copper, > 30 ppb). The surface and bulk insolubles formed from each fuel have been quantified using surface-carbon burnoff of tubing sections and of in-line filters. The total insolubles measured at 185 and 225°C fall in the range 0.3–7.5 μg/mL and 0.1–2 μg/mL, respectively. In general, the greater the quantity of insolubles formed at 185°C, the greater its reduction at 225°C. Possible explanations for this effect are offered, and implications relative to understanding surface fouling are discussed.

Stabilization of Lattice Defects in HPT-Deformed Palladium Hydride

2010 ◽  
Vol 667-669 ◽  
pp. 427-432 ◽  
Author(s):  
Matthias Bönisch ◽  
Michael Zehetbauer ◽  
Maciej Krystian ◽  
Daria Setman ◽  
Gerhard Krexner
Keyword(s):  
Thermal Stability ◽  
Plastic Deformation ◽  
High Pressure ◽  
High Pressure Torsion ◽  
Hydrogen Trapping ◽  
Stability Range ◽  
Hydrogen Clusters ◽  
Palladium Hydride ◽  
First Time ◽  
Thermal Stability Range

Recent investigations on palladium hydride (Pd-H) showed, for the first time, evidence of formation of vacancy-hydrogen (Vac-H) clusters during Severe Plastic Deformation (SPD) effected by High Pressure Torsion (HPT). Vacancy concentrations produced in Pd-H by this method are extraordinarily high. DSC-scans show that the thermal stability range of vacancies is extended by about 150K due to trapping of hydrogen leading to the formation of vacancy-hydrogen clusters. Recent experiments give evidence that the mobility of the H atoms and/or the vacancies is conditional for the formation of Vac-H clusters during HPT. Results furthermore indicate defect stabilization by hydrogen trapping not only for vacancy-type defects but also for dislocations and grain boundaries.

Effects of Temperature on Formation of Insolubles in Aviation Fuels

1998 ◽  
Vol 120 (2) ◽  
pp. 289-293 ◽  
Author(s):  
W. J. Balster ◽  
E. G. Jones
Keyword(s):  
Thermal Stability ◽  
Heat Exchanger ◽  
Stability Range ◽  
Surface Carbon ◽  
Single Pass ◽  
Effects Of Temperature ◽  
Thermal Stability Range

Ten aviation turbine fuels (five Jet-A fuels, three JP-5, one JP-8, and one JPTS) were stressed at 185 and 225°C in a single-pass heat exchanger. On the basis of several criteria applied at 185°C, these fuels cover a broad thermal-stability range from lesser-quality fuels to the most stable JPTS fuel. Three of these fuels contain significant concentrations of dissolved metal (copper, >30 ppb). The surface and bulk insolubles formed from each fuel have been quantified using surface-carbon burnoff of tubing sections and of in-line filters. The total insolubles measured at 185 and 225°C fall in the range 0.3–7.5 μg/mL, and 0.1–2 μg/mL, respectively. In general, the greater the quantity of insolubles formed at 185°C, the greater its reduction at 225°C. Possible explanations for this effect are offered, and implications relative to understanding surface fouling are discussed.

scholarly journals The role of the substrate on the mechanical and thermal stability of Pd thin films during hydrogen (de)sorption

2021 ◽  
Vol 46 (5) ◽  
pp. 4137-4153
Author(s):  
Neha Verma ◽  
Rob Delhez ◽  
Niek M. van der Pers ◽  
Frans D. Tichelaar ◽  
Amarante J. Böttger
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Thermal Stability Of

scholarly journals Effect of Growth Temperature on the Characteristics of CsPbI3-Quantum Dots Doped Perovskite Film

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4439
Author(s):  
Shui-Yang Lien ◽  
Yu-Hao Chen ◽  
Wen-Ray Chen ◽  
Chuan-Hsi Liu ◽  
Chien-Jung Huang
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Quantum Dots ◽  
Quantum Dot ◽  
Growth Temperature ◽  
Electron Mobility ◽  
Surface Defects ◽  
Different Temperatures ◽  
Pb Doping ◽  
Pristine Film

In this study, adding CsPbI3 quantum dots to organic perovskite methylamine lead triiodide (CH3NH3PbI3) to form a doped perovskite film filmed by different temperatures was found to effectively reduce the formation of unsaturated metal Pb. Doping a small amount of CsPbI3 quantum dots could enhance thermal stability and improve surface defects. The electron mobility of the doped film was 2.5 times higher than the pristine film. This was a major breakthrough for inorganic quantum dot doped organic perovskite thin films.

scholarly journals The influence of an ultra-high resistivity Ta underlayer on perpendicular magnetic anisotropy in Ta/Pt/Co/Pt heterostructures

RSC Advances ◽  
2020 ◽  
Vol 10 (19) ◽  
pp. 11219-11224
Author(s):  
Wei Zhang ◽  
Xiaoxiong Jia ◽  
Rui Wang ◽  
Huihui Liu ◽  
Zhengyu Xiao ◽  
...  
Keyword(s):  
Thin Films ◽  
Thermal Stability ◽  
Magnetic Anisotropy ◽  
High Stability ◽  
Essential Role ◽  
Perpendicular Magnetic Anisotropy ◽  
Low Energy ◽  
High Resistivity ◽  
Excellent Thermal Stability ◽  
Low Energy Consumption

Thin films with perpendicular magnetic anisotropy (PMA) play an essential role in the development of technologies due to their excellent thermal stability and potential application in devices with high density, high stability, and low energy consumption.

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