scholarly journals Experiments quantifying elemental and isotopic fractionations during evaporation of CAI-like melts in low-pressure hydrogen and in vacuum: Constraints on thermal processing of CAIs in the protoplanetary disk

2021 ◽  
Vol 292 ◽  
pp. 557-576
Author(s):  
Ruslan A. Mendybaev ◽  
Michiru Kamibayashi ◽  
Fang-Zhen Teng ◽  
Paul S. Savage ◽  
R. Bastian Georg ◽  
...  
Keyword(s):  
Thermal Processing ◽  
Low Pressure ◽  
Protoplanetary Disk ◽  
Pressure Hydrogen

Capturing low-pressure hydrogen using V Ti Cr catalyzed magnesium hydride

2019 ◽  
Vol 413 ◽  
pp. 139-147 ◽  
Author(s):  
Chengshang Zhou ◽  
Zhigang Zak Fang ◽  
Pei Sun ◽  
Lei Xu ◽  
Yong Liu
Keyword(s):  
Low Pressure ◽  
Magnesium Hydride ◽  
Pressure Hydrogen

Discovery of a New FUN CAI from a CV Carbonaceous Chondrite: Evidence for Multistage Thermal Processing in the Protoplanetary Disk

2008 ◽  
Vol 680 (2) ◽  
pp. L141-L144 ◽  
Author(s):  
Kristine Thrane ◽  
Kazuhide Nagashima ◽  
Alexander N. Krot ◽  
Martin Bizzarro
Keyword(s):  
Thermal Processing ◽  
Carbonaceous Chondrite ◽  
Protoplanetary Disk

Impact of Backend Processing on Integrated Ferroelectric Capacitor Characteristics

1993 ◽  
Vol 310 ◽  
Author(s):  
P.D. Maniar ◽  
R. Moazzami ◽  
R.E. Jones ◽  
A.C. Campbell ◽  
C.J. Mogab
Keyword(s):  
Leakage Current ◽  
Sol Gel ◽  
Low Pressure ◽  
Cmos Process ◽  
Ferroelectric Capacitor ◽  
Standard Cmos Process ◽  
Order Of Magnitude ◽  
Pressure Hydrogen

AbstractIntegration of a ferroelectric capacitor module in a standard CMOS process subjects the ferroelectric to various ambients during backend processing, some of which can render the ferroelectric essentially non-operational for NVRAM applications. Post-crystallization processing of sol-gel deposited integrated ferroelectric PZT capacitors in the presence of hydrogen-containing, reducing ambients is observed to degrade the nonvolatile polarization. Low-pressure hydrogen anneals at temperatures as low as 200°C substantially degrade the nonvolatile polarization while the DRAM polarization remains roughly constant. Leakage current drops by one order of magnitude and fatigue is accelerated. A ferroelectric capacitor module can be integrated with minimal degradation with careful modifications in the backend processing.

Characterization and global modelling of low-pressure hydrogen-based RF plasmas suitable for surface cleaning processes

2013 ◽  
Vol 46 (47) ◽  
pp. 475206 ◽  
Author(s):  
Nikola Škoro ◽  
Nevena Puač ◽  
Saša Lazović ◽  
Uroš Cvelbar ◽  
George Kokkoris ◽  
...  
Keyword(s):  
Low Pressure ◽  
Surface Cleaning ◽  
Rf Plasmas ◽  
Global Modelling ◽  
Pressure Hydrogen

scholarly journals Application of low-temperature low-pressure hydrogen plasma: treatment of artificially prepared corrosion layers

2014 ◽  
Vol 13 (1) ◽  
Author(s):  
Petra Fojtíková ◽  
Lucie Řádková ◽  
Drahomíra Janová ◽  
František Krčma
Keyword(s):  
Low Temperature ◽  
Chemical Reduction ◽  
Hydrogen Plasma ◽  
Optical Emission ◽  
Low Pressure ◽  
Oh Radicals ◽  
Plasma Chemical ◽  
Duty Cycles ◽  
Fundamental Research ◽  
Pressure Hydrogen

AbstractThe aim of this work is the application of low-temperature low-pressure hydrogen plasma on artificially prepared corrosion layers, so called plasma chemical reduction. It is necessary to use samples with artificially prepared corrosion layers because it is impossible to use the real artifacts for fundamental research. The bronze was chosen as a sample material. Formation of corrosion layers on the bronze samples was carried out in concentrated hydrochloric acid vapors with the addition of sand. The radio-frequency hydrogen plasma was generated in the flowing regime at a pressure of 160 Pa. Different values of supplied power were chosen as well as different discharge modes: continuous or pulsed mode with varied duty cycles. By the combination of supplied power and mode factors, we selected two values of effective power. The process of plasma chemical reduction was monitored by optical emission spectroscopy (OES) and simultaneously, the sample temperature was measured. Rotational temperatures were calculated from OH radicals spectra. Changes in the structure and elemental composition were determined using scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDX).

Comparative photoemission study of low-pressure hydrogen, silane, and disilane adsorption on Si(111)7×7

1990 ◽  
Vol 41 (6) ◽  
pp. 3878-3881 ◽  
Author(s):  
J. J. Koulmann ◽  
F. Ringeisen ◽  
M. Alaoui ◽  
D. Bolmont
Keyword(s):  
Low Pressure ◽  
Photoemission Study ◽  
Pressure Hydrogen
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