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Relevant bibliographies by topics / Oxygen partial pressure

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Academic literature on the topic 'Oxygen partial pressure'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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Journal articles on the topic "Oxygen partial pressure"

1

Khojier, Kaykhosrow, Mahsa Fasihnikoutalab, and Ghazal Moradi. "Oxygen Partial Pressure Effect on Nano-Structure and NO Gas Detection Sensitivity of Sputtered MoO₃ Thin Films." Applied Mechanics and Materials 446-447 (November 2013): 185–90. http://dx.doi.org/10.4028/www.scientific.net/amm.446-447.185.

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This paper explains the influence of oxygen partial pressure on crystallographic structure, surface morphology and sensing properties of sputtered MoO3 thin films. The MoO3 thin films were deposited by DC reactive magnetron sputtering technique on glass substrate at different oxygen partial pressures in the range of 5×10-5-4×10-4 mbar. X-ray diffraction (XRD) results showed that all prepared films were polycrystalline of α-MoO3 stable orthorhombic phase. Atomic force microscopy (AFM) images depicted a needle-like structure for deposited film at lowest oxygen partial pressure (5×10-5 mbar) and

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2

Yao, X., M. Sumida, and Y. Shiohara. "Influences of oxygen partial pressure on YBCO grain growth by a zone melting method." Journal of Materials Research 11, no. 11 (1996): 2711–16. http://dx.doi.org/10.1557/jmr.1996.0343.

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This study investigates the influences of Y–Ba–Cu–O compounds solidification under different oxygen partial pressures by a zone melting method. In the Y–Ba–Cu–O system, P(O2) ranged from 0.02 to 1 atm, and the following reaction occurred during heating: YBa2Cu3O6−δ (Y123) → Y2BaCuO5 (Y211) + L. With an increase of oxygen partial pressure or decrease of pulling rate, the morphology of the solidified interface changed from mushy to equiaxed, cellular, and planar. The continuous Y123 grains were readily obtained under high oxygen partial pressure. Based on the constitutional supercooling theory a

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Chandra Sekhar, M., P. Kondaiah, B. Radha Krishna, and S. Uthanna. "Effect of Oxygen Partial Pressure on the Electrical and Optical Properties of DC Magnetron Sputtered AmorphousTiO2Films." Journal of Spectroscopy 2013 (2013): 1–7. http://dx.doi.org/10.1155/2013/462734.

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Titanium dioxide (TiO2) thin films were deposited on p-Si (100) and Corning glass substrates held at room temperature by DC magnetron sputtering at different oxygen partial pressures in the range9×10−3–9×10−2 Pa. The influence of oxygen partial pressure on the structural, electrical, and optical properties of the deposited films was systematically studied. XPS studies confirmed that the film formed at an oxygen partial pressure of6×10−2 Pa was nearly stoichiometric. TiO2films formed at all oxygen partial pressures were X-ray amorphous. The optical transmittance gradually increased and the abso

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Silverton, Natalie A., Lars R. Lofgren, Isaac E. Hall, et al. "Noninvasive Urine Oxygen Monitoring and the Risk of Acute Kidney Injury in Cardiac Surgery." Anesthesiology 135, no. 3 (2021): 406–18. http://dx.doi.org/10.1097/aln.0000000000003663.

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Background Acute kidney injury (AKI) is a common complication of cardiac surgery. An intraoperative monitor of kidney perfusion is needed to identify patients at risk for AKI. The authors created a noninvasive urinary oximeter that provides continuous measurements of urinary oxygen partial pressure and instantaneous urine flow. They hypothesized that intraoperative urinary oxygen partial pressure measurements are feasible with this prototype device and that low urinary oxygen partial pressure during cardiac surgery is associated with the subsequent development of AKI. Methods This was a prospe

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Reddy, P. Narayana, A. Sreedhar, M. Hari Prasad Reddy, and S. Uthanna. "Structural, Electrical, and Optical Properties of Reactively Sputtered Ag-Cu-O Films." ISRN Condensed Matter Physics 2012 (September 10, 2012): 1–7. http://dx.doi.org/10.5402/2012/293032.

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Thin films of silver-copper-oxide were deposited on glass substrates by RF magnetron sputtering of Ag80Cu20 target under various oxygen partial pressures in the range 5×10−3–8×10−2 Pa. The effect of oxygen partial pressure on the crystallographic structure and surface morphology and electrical and optical properties was systematically studied and the results were reported. The oxygen content in the films was correlated with the oxygen partial pressure maintained during the growth of the films. The films which formed at low oxygen partial pressure of 5×10−3 Pa were mixed in phase of Ag2Cu2O3 an

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Jing, SHI, Yan Jiaqi, Yan Chenyang, Zhang Tingting, and FanG Yi-qun*. "Oxygen Toxicity." Journal of Biomedical Research & Environmental Sciences 5, no. 1 (2024): 052–54. http://dx.doi.org/10.37871/jbres1871.

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In a broad sense, if the oxygen partial pressure is higher than the oxygen partial pressure at atmospheric pressure (21kPa), they can be called high partial pressure oxygen or hyperoxia. Hyperoxia is often used in diving operations, underwater special operations and clinic treatment. When in diving operations. Hyperoxia can shorten the decompression time after diving and avoid decompression sickness. In underwater special operations, a fully closed breathing apparatus is used to breathe high partial pressure. Oxygen can also improve its concealment. Hyperoxia can also improve the function of i

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Mohanty, P., V. Ganeshan та Chandana Rath. "Room Temperature Ferromagnetism in Ti_0.985Co_0.015O_2-δ Thin Films Grown by Pulsed Laser Deposition Technique". Materials Science Forum 760 (липень 2013): 1–7. http://dx.doi.org/10.4028/www.scientific.net/msf.760.1.

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Ti0.985Co0.015O2-δ thin films are deposited at 0, 0.1, 1 and 300 mTorr oxygen partial pressures by pulsed laser deposition (PLD) technique. Glancing angle x- ray diffraction (GAXRD) and micro-Raman spectroscopy show that the phase changes from rutile to anatase with increasing oxygen partial pressure. From Rutherford backscattering spectroscopic (RBS) technique, O to (Ti+Co) atomic ratio is found to increase with increasing oxygen partial pressure. Further, the simulation of RBS data while reveals non-uniform distribution of Co throughout the film deposited at 0 and 0.1 mTorr oxygen partial pr

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He, Jian Ting, Bo Xue Tan, Yuan Bin Su, Shu Lian Yang, and Qin Qin Wei. "XPS Analysis of ZnO Thin Films Obtained by Pulsed Laser Deposition." Advanced Materials Research 383-390 (November 2011): 6293–96. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.6293.

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Highly c-axis oriented ZnO thin films were deposited on n-Si (111) substrate at various oxygen partial pressures by pulsed laser deposition (PLD). X-ray diffraction (XRD), Atomic force microscopy (AFM) were used to analyze the influence of the oxygen partial pressure on the crystallization and morphology of the ZnO thin films. X-ray photoelectron spectroscopy (XPS) was used to analyze relationships between chemical shifts of XPS energy spectra and stoichiometric ratios of ZnO thin films, and quantitative relationships between content of Zn, O and oxygen partial pressures. An optimal crystalliz

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Shuai, Yao, Sheng Qiang Zhou, and Heidemarie Schmidt. "Electrical and Magnetic Properties of Polycrystalline Mn-Doped BaTiO₃ Thin Films Grown on Pt/Sapphire Substrates by Pulsed Laser Deposition." Advances in Science and Technology 67 (October 2010): 212–17. http://dx.doi.org/10.4028/www.scientific.net/ast.67.212.

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5 at.% Mn-doped and undoped, 200 nm thick BaTiO3 thin films have been grown under different oxygen partial pressures by pulsed laser deposition on Pt/sapphire substrates. X-ray diffraction (XRD) measurements reveal the same polycrystalline single-phase perovskite structure for all the thin films despite the different oxygen partial pressure, while their preferred orientation strongly depends on the oxygen partial pressure. The 5 at. % Mn-doping decreases the dielectric loss of the Mn-doped BaTiO3 thin films, however, their relative permittivity is also decreased. Ferroelectricity has been prob

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Chaiyakun, Surasing, A. Buranawong, T. Deelert, and N. Witit-Anun. "The Influence of Total and Oxygen Partial Pressures on Structure and Hydrophilic Property of TiO₂Thin Films Deposited by Reactive DC Magnetron Sputtering." Advanced Materials Research 55-57 (August 2008): 465–68. http://dx.doi.org/10.4028/www.scientific.net/amr.55-57.465.

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TiO2 thin films have been deposited by reactive DC magnetron sputtering technique to study the effect of total pressure and oxygen partial pressure on structure and hydrophilic properties. The crystal structure and hydrophilic property was measured by XRD and contact angle meter, respectively. The results showed that the films were composed of pure rutile and mixed of anatase/rutile structure dependent on the total pressure and oxygen partial pressure. It was found that all films can perform hydrophilic property. In case of high total pressure, the films showed superhydrophilic property, where

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Dissertations / Theses on the topic "Oxygen partial pressure"

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Ni, X. W. "Oxygen partial pressure fluctuations in a fluidized bed combustor." Thesis, University of Leeds, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.373860.

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Schenkman, Kenneth Aron. "Determination of myocardial intracellular oxygen partial pressure by optical spectroscopy /." Thesis, Connect to this title online; UW restricted, 1996. http://hdl.handle.net/1773/8002.

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Benammar, Mohieddine. "Development of instrumentation incorporating solid state gas sensors for measurement of oxygen partial pressure." Thesis, Middlesex University, 1991. http://eprints.mdx.ac.uk/6532/.

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Electronic instrumentation was developed for the measurement of the oxygen partial pressure, P1, in a sample gas using fully-sealed zirconia pump-gauge oxygen sensors operated in an AC mode. These sensors, operated typically at 700°C, consisted of two discs of zirconia with porous platinum electrodes on each face separated by a gold seal and enclosing a small internal volume. One disc was operated as a pump enabling oxygen to be electrochemically transferred into and out of the enclosed volume; the other disc operated as a gauge, the Nernst EMF across the electrodes providing a measure of the

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Hessling, Oscar. "Influence of Oxygen Partial Pressure on the Droplet Shape of Stainless Steel Using Levitated Droplet Method." Thesis, KTH, Materialvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-199668.

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An induction setup for levitation studies of molten metals was built. The setup was used to levitate and heat stainless steel samples of 2.00 g to 1600 °C and subject them to different atmospheres. Changes in shape and temperature were recorded by video and infrared thermocouple. Oxide films forming on the droplets during levitation were observed. It was possible to notice an immediate surface reaction when the reaction gas was introduced. This reaction is concluded to influence the surface and bulk composition, and therefore have an effect on the shape evolution of the droplet. A more oxidizi

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Uboldi, E. "THE ROLE OF OXYGEN PARTIAL PRESSURES ON CHEMICAL AND BIOCHEMICAL PROPERTIES OF RED MEATS." Doctoral thesis, Università degli Studi di Milano, 2014. http://hdl.handle.net/2434/232644.

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Meat is an essential component of a balanced diet, since it is a source of important nutrients totally or almost absent in all other foods. The distribution and sale of fresh meat products present many critical points, and a major concern is the product waste due to uncorrected practices at all levels (i.e. farmer, slaughter house, processor, distributor, retailer, consumer) and short shelf lives. In addition to good manufacturing practices and consumer education, meat packaging can help in prolonging the shelf life of meat products. In fact, the possibility to determine and control the oxygen

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Stefanik, Todd Stanley 1973. "The effect of oxygen partial pressure on the epitaxy of cerium oxide films deposited on nickel substrates." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/47650.

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Iwagoshi, Thawi. "Influence of oxygen partial pressure on the crystal growth and texture formation of some high-tc superconductors /." The Ohio State University, 1996. http://rave.ohiolink.edu/etdc/view?acc_num=osu148794150429637.

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Seetharaman, Sridhar 1971. "Effect of temperature, oxygen partial pressure and current on the kinetics of the noble-metal / YSZ interfacial reaction." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/39626.

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Lopes, Sara Luisa Castro Sobral. "Quantificação dos valores da pressão parcial de oxigénio (po2) e da saturação do oxigénio (so2) para caracterização dos níveis de hipoxia no tumor mamário de cadelas : estudo preliminar." Master's thesis, Universidade de Lisboa, Faculdade de Medicina Veterinária, 2017. http://hdl.handle.net/10400.5/13433.

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Dissertação de Mestrado Integrado em Medicina Veterinária<br>Os tumores da mama representam a neoplasia mais frequente na cadela, com uma taxa de malignidade de cerca de 50%. A elevada taxa de proliferação celular verificada no desenvolvimento tumoral, resulta num inadequado aporte de oxigénio a algumas regiões do tumor originando zonas de hipoxia, a qual se relaciona num sistema causa-efeito com o nível de resposta terapêutica dos doentes oncológicos. O estudo presente foi realizado numa amostra de 32 indivíduos (N=32), da espécie Canis familiaris, do género feminino, e teve como objectivo qu

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Bartie, Neill J. "The effects of temperature, slag chemistry and oxygen partial pressure on the behaviour of chromium oxide in melter slags." Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/16255.

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Thesis (MScIng)--University of Stellenbosch, 2004.<br>ENGLISH ABSTRACT: This thesis details results obtained in an experimental study conducted to determine the effects of operating temperature, oxygen partial pressure, bulk chromium oxide content and bulk FeOx/MgO ratio on the solubility of chromium oxide in melter type slags in the platinum industry. Two PGM-containing layers in the Bushveld Complex in South Africa, the Merensky and UG2 reefs, are currently being mined for the extraction of base metals and platinum group metals (PGM). While the Merensky reef is a pyroxenitic layer, the

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Books on the topic "Oxygen partial pressure"

1

United States. National Aeronautics and Space Administration., ed. Removal of oxygen from electronic materials by vapor-phase processes. National Aeronautics and Space Administration, 1997.

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Benammar, Mohieddine. Development of instrumentation incorporating solid state gas sensors for measurement of oxygen partial pressure. Middlesex Polytechnic, 1991.

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3

Kinnear, Ewan M. A clinical study of the relationship between capillary refill time and the transcutaneous partial pressure of oxygen. University College Northampton, 1999.

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4

McMahon, T. High-temperature oxidation of MoO2-, alpha-Cr203-, and alpha-Al203 -forming materials in low oxygen partial pressure atmospheres of H2/h20/N2 and CO/CO2/N2. UMIST, 1992.

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Kreit, John W. Gas Exchange. Edited by John W. Kreit. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780190670085.003.0002.

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Gas Exchange explains how four processes—delivery of oxygen, excretion of carbon dioxide, matching of ventilation and perfusion, and diffusion—allow the respiratory system to maintain normal partial pressures of oxygen (PaO2) and carbon dioxide (PaCO2) in the arterial blood. Partial pressure is important because O2 and CO2 molecules diffuse between alveolar gas and pulmonary capillary blood and between systemic capillary blood and the tissues along their partial pressure gradients, and diffusion continues until the partial pressures are equal. Ventilation is an essential part of gas exchange b

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Gattinon, Luciano, and Eleonora Carlesso. Acute respiratory failure and acute respiratory distress syndrome. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199687039.003.0064.

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Respiratory failure (RF) is defined as the acute or chronic impairment of respiratory system function to maintain normal oxygen and CO2 values when breathing room air. ‘Oxygenation failure’ occurs when O2 partial pressure (PaO2) value is lower than the normal predicted values for age and altitude and may be due to ventilation/perfusion mismatch or low oxygen concentration in the inspired air. In contrast, ‘ventilatory failure’ primarily involves CO2 elimination, with arterial CO2 partial pressure (PaCO2) higher than 45 mmHg. The most common causes are exacerbation of chronic obstructive pulmon

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Gattinon, Luciano, and Eleonora Carlesso. Acute respiratory failure and acute respiratory distress syndrome. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199687039.003.0064_update_001.

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Respiratory failure (RF) is defined as the acute or chronic impairment of respiratory system function to maintain normal oxygen and CO2 values when breathing room air. ‘Oxygenation failure’ occurs when O2 partial pressure (PaO2) value is lower than the normal predicted values for age and altitude and may be due to ventilation/perfusion mismatch or low oxygen concentration in the inspired air. In contrast, ‘ventilatory failure’ primarily involves CO2 elimination, with arterial CO2 partial pressure (PaCO2) higher than 45 mmHg. The most common causes are exacerbation of chronic obstructive pulmon

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Wise, Matt, and Simon Barry. Respiratory failure. Edited by Patrick Davey and David Sprigings. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780199568741.003.0135.

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Respiratory failure is a syndrome characterized by defective gas exchange due to inadequate function of the respiratory system. There is a failure to oxygenate blood (hypoxaemia) and/or eliminate carbon dioxide (hypercapnia). Hypoxaemia is defined as an arterial blood partial pressure of oxygen (PaO2) of <8 kPa, and hypercapnia as an arterial blood partial pressure of carbon dioxide (PaCO2) of >6 kPa. Respiratory failure is divided into two different types, conventionally referred to as type 1 and type 2. The distinction between these two is important because it emphasizes not only diffe

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Schakett, Brent, and Kathleen Chen. Laryngospasm. Edited by Erin S. Williams, Olutoyin A. Olutoye, Catherine P. Seipel, and Titilopemi A. O. Aina. Oxford University Press, 2018. http://dx.doi.org/10.1093/med/9780190678333.003.0013.

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Laryngospasm is a complication that all pediatric anesthesia providers must be able to successfully diagnosis and treat. The risk factors include but are not limited to recent upper respiratory infection, history of asthma, preschool-age child, airway surgery, and light anesthesia. Laryngospasm can be defined as either partial laryngospasm with residual opening of the glottis or complete laryngospasm where there is no air movement. Prevention is obtained by limiting risk factors; waiting 6 to 8 weeks after upper respiratory infection symptoms have resolved if possible, smoking cessation, sucti

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Leaver, Susannah, and Timothy Evans. Hypoxaemia in the critically ill. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780199600830.003.0085.

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Hypoxaemia is a reduction in the partial pressure of oxygen in the blood below 8 kPa/60 mmHg. Hypoxaemia results from one, or several, or a combination of causes. Calculating the alveolar–arterial gradient can help to delineate the cause. Acute respiratory failure manifests in a number of ways, the most sensitive indicator being an increased respiratory rate. Diagnosis is dependent on a comprehensive history, examination in combination with appropriate blood tests, and imaging. Hypoxaemia is the final common pathway of a number of conditions and the exact cause may not be immediately apparent.

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Book chapters on the topic "Oxygen partial pressure"

1

Böhm, E., K. Strein, G. Sponer, B. Müller-Beckmann, and N. Würtz. "The Effect of Muscle Exercise on Partial Oxygen Pressure in Dogs with Unilateral Chronically Ligated Leg Arteries." In Clinical Oxygen Pressure Measurement. Springer Berlin Heidelberg, 1987. http://dx.doi.org/10.1007/978-3-642-71226-5_34.

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Baak, Marleen A., Bernard Gutin, Kim A. Krawczewski Carhuatanta, et al. "Oxygen Partial Pressure (PO2), in Heavy Exercise." In Encyclopedia of Exercise Medicine in Health and Disease. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-540-29807-6_159.

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Harper, Susana A., Alfredo Juarez, Horacio Perez III, David B. Hirsch, and Harold D. Beeson. "Oxygen Partial Pressure and Oxygen Concentration Flammability: Can They Be Correlated?" In Flammability and Sensitivity of Materials in Oxygen-Enriched Atmospheres: 14th Volume. ASTM International, 2016. http://dx.doi.org/10.1520/stp159620150081.

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Drews, Gerhart. "Effect of Oxygen Partial Pressure on Formation of the Bacterial Photosynthetic Apparatus." In Oxygen Sensing in Tissues. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-83444-8_1.

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Lang, Erhard W., Magdalena Kasprowicz, Peter Smielewski, John Pickard, and Marek Czosnyka. "Plateau Waves of Intracranial Pressure and Partial Pressure of Cerebral Oxygen." In Acta Neurochirurgica Supplement. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-22533-3_36.

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Kang, Kyung A., Samuel A. Afuwape, and Duane F. Bruley. "A Computer Simulation of Oxygen Partial Pressure and Temperature Profiles during Hyperthermia." In Oxygen Transport to Tissue XIV. Springer US, 1992. http://dx.doi.org/10.1007/978-1-4615-3428-0_19.

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Reis, Danieli A. P., D. S. Almeida, Maria Carmo Andrade Nono, Cosme Roberto Moreira Silva, and F. Piorino Neto. "Study of PSZ Sintered in Low Oxygen Partial Pressure." In Advanced Powder Technology IV. Trans Tech Publications Ltd., 2005. http://dx.doi.org/10.4028/0-87849-984-9.546.

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Mallikarjuna Reddy, A., Y. Ashok Kumar Reddy, Ch Seshendra Reddy, A. Sivasankar Reddy, and P. Sreedhara Reddy. "Oxygen Partial Pressure Dependent Properties of Nanocrystalline Nickel Oxide Films." In Springer Proceedings in Physics. Springer Berlin Heidelberg, 2013. http://dx.doi.org/10.1007/978-3-642-34216-5_17.

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Van Liew, Hugh D., and Mark E. Burkard. "High Oxygen Partial Pressure in Tissue Delivered by Stabilized Microbubbles." In Advances in Experimental Medicine and Biology. Springer US, 1997. http://dx.doi.org/10.1007/978-1-4615-5865-1_51.

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Woertgen, Chris, Jan Warnat, Alexander Brawanski, and Georg Liebsch. "Non-Invasive Measurement Of the Superficial Cortical Oxygen Partial Pressure." In Advances in Experimental Medicine and Biology. Springer US, 2009. http://dx.doi.org/10.1007/978-0-387-85998-9_26.

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Conference papers on the topic "Oxygen partial pressure"

1

Sethi, V. K., P. Ganesan, D. Robinson-Wilson, S. K. Sherman, and E. Puentes. "Corrosion Profile of a 32" X 29" AFBC Pilot Plant." In CORROSION 1985. NACE International, 1985. https://doi.org/10.5006/c1985-85339.

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Abstract The University of Kentucky's Institute for Mining and Minerals Research is operating a 32" X 29" atmospheric fluidized bed combustor (AFBC). The combustor, amongst other research programs, is being used to evaluate the corrosion performance of various engineering alloys. As a part of this program, the combustor is routinely profiled for oxygen distribution within the bed and the freeboard zones. These measurements are made using solid electrolyte oxygen sensors adopted from the automobile industry. Since recent investigations have shown that low oxygen partial pressure areas are poten

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Cattanach, Kyle, Sunder Ramachandran, Vladimir Jovancicevic, and Abdelmounam Sherik. "A New Methodology for Monitoring Corrosion under Sales Gas Conditions Using the Quartz Crystal Microbalance." In CORROSION 2011. NACE International, 2011. https://doi.org/10.5006/c2011-11085.

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Abstract A new method for determining the mass change due to oxidation of iron and the associated corrosion rate under sales gas conditions using the quartz crystal microbalance (QCM) is presented. The method involves four steps: 1) determining the overall frequency change of QCM, 2) subtracting the frequency change due to water film formation from the total frequency change, 3) calculating the resulting mass change of the QCM, and 4) determining the corresponding corrosion rates. In this paper, QCM is used to determine the effects of critical system parameters such as ΔT/relative humidity, ox

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Maldonado, L., L. Diaz, H. Grübmaier, A. Naoumidis, and H. Nickel. "Characterization of Oxide Scales Formed in Very Low Oxygen Potentials." In CORROSION 1996. NACE International, 1996. https://doi.org/10.5006/c1996-96424.

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Abstract Samples of alloy 800 H (UNS N08810) and alloy 617 (UNS N06617) were oxidized in a simulated process gas atmosphere. The principal elements of the gaseous environment were 50 % H2O, 35% H2 and 5% of CO2, CO, and CH4, respectively and a total pressure of 140 kPa. This gas in a state of thermodynamic equilibrium establishes oxygen partial pressures ranging from 3.0 x 10-17 kPa, at 800 °C to 3.2 x 10-14 kPa at 950 °C. The exposure time was from 600 to 5000 hours. After the exposure the alloy surfaces showed compact oxide ayers. On alloy N08810 a double oxide layer was built. A first layer

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Schmitt, Guenter, and Ruediger Forster. "Unexpected Effect of Small Oxygen Concentrations in Sales Gas on Element Currents between Pipeline Steel and Magnetite from Black Powder." In CORROSION 2015. NACE International, 2015. https://doi.org/10.5006/c2015-05587.

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Abstract Magnetite as the major part of black powder encountered in transmission pipelines all over the world can form galvanic elements with the pipeline steel, provided a liquid film with some ionic conductivity is present. This galvanic element can exist also in the absence of water, provided other compounds are present to assure some ionic conductivity, e.g. organic acids like formic acid, acetic acid, acetates, or ammonium compounds from inhibitor packages. In this galvanic element iron forms the anode and magnetite the surface for the cathodic reaction. The element currents are in the µA

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Knudsen, Ole Øystein, Kristian Karlsen Brende, and Håkon Gundersen. "Cathodic Disbonding at High Temperature." In CORROSION 2011. NACE International, 2011. https://doi.org/10.5006/c2011-11023.

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Abstract A new method for accelerated testing of cathodic disbonding at high temperature, simulating field conditions for coatings on submerged high temperature surfaces is developed. A test program studying the effect of various test parameters have been performed, focusing on temperature, oxygen partial pressure, potential and hydrostatic pressure. The results are compared to a non-accelerated long term cathodic disbonding test in seawater, the ISO 15711 cathodic disbonding test and a high temperature autoclave test.

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Omura, Tomohiko, Taro Ohe, Toshiharu Abe, Masakatsu Ueda, Perry Ian Nice, and John W. Martin. "Sulfide Stress Cracking (SSC) Resistance Limits for a 125 Ksi Grade High Strength Low Alloy Steel OCTG Developed for Mildly Sour Service." In CORROSION 2010. NACE International, 2010. https://doi.org/10.5006/c2010-10307.

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Abstract A 125 ksi grade high strength low alloy steel OCTG has been developed for mildly sour environments. This has been used for a “Fit For Purpose” production casing material in high pressure / high temperature wells. In this paper, the prevention of oxygen ingress and pH stabilization during testing have been investigated for obtaining accurate SSC test results by NACE TM0177-2005 Method A in mildly sour conditions. Testing techniques have been developed in which the test equipment is contained within a nitrogen chamber and the test pH is stabilized by using an acetic acid / sodium acetat

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Ganesan, P., G. D. Smith, and L. E. Shoemaker. "The Effects of Excursions of Oxygen and Water Vapor Contents on Nickel-Containing Alloy Performance in a Waste Incineration Environment." In CORROSION 1991. NACE International, 1991. https://doi.org/10.5006/c1991-91248.

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Abstract Alloy performance in waste incinerator environments is highly dependent upon the composition of the flue gas and its temperature. Particularly significant are the effects of temperature over the range from 593°C to 927°C, the water vapor content and the role of the partial pressure of oxygen. These factors are examined for their effect on 316 and 347 stainless steels, INCONEL® alloys 600 and 625, INCOLOY® alloy 800HT,® and 825.

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Korpiola, K., H. Jalkanen, T. Kinos, P. Siitonten, and P. Vuoristo. "Oxygen Partial Pressure Measurement in the Plasma Gun Jet." In ITSC 1996, edited by C. C. Berndt. ASM International, 1996. http://dx.doi.org/10.31399/asm.cp.itsc1996p0471.

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Abstract An important aspect of the APS plasma spray process is the turbulent mixing of the spray jet with the surrounding air. The air mixing into the jet causes undesirable oxidation of the sprayed coating. In this work the air mixing in the plasma jet was determined by direct measurement of the oxygen content. The measuring method is based on electrochemical determination of the oxygen potential using a solid electrolyte cell. The partial pressure of oxygen along the centreline of the plasma jet was measured with the hydrogen/argon and helium/argon ratio, the gas flow rate and the stand-off

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Fasoulas, Stefanos. "Measurement of oxygen partial pressure in low pressure and high enthalpy flows." In Advanced Measurement and Ground Testing Conference. American Institute of Aeronautics and Astronautics, 1996. http://dx.doi.org/10.2514/6.1996-2213.

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Inagaki, Suguru, Hiroki Nagai, and Keisuke Asai. "Measurement of Oxygen Partial Pressure Distribution in a Fuel Cell Using Pressure-Sensitive Paint." In ASME/JSME 2007 Thermal Engineering Heat Transfer Summer Conference collocated with the ASME 2007 InterPACK Conference. ASMEDC, 2007. http://dx.doi.org/10.1115/ht2007-32751.

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To improve efficiency and service life of a fuel cell, it is important to understand the dynamic behavior of oxygen molecules in the cell. In other words, we need to know the oxygen concentration distribution over electrode planes and inside diffused layers in addition to its time variation. We applied the Pressure-Sensitive Paint (PSP) technique to this problem, attempting to measure distribution of partial pressure oxygen along micro channels of a fuel cell. To prevent the effect of water produced by the power generation process, we developed a water-repellent PSP that can withstand heat and

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Reports on the topic "Oxygen partial pressure"

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Shykoff, B. Repeated Six-Hour Dives 1.35 ATM Oxygen Partial Pressure. Defense Technical Information Center, 2005. http://dx.doi.org/10.21236/ada442695.

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Natesan, K., and M. Uz. Oxidation behavior of V-Cr-Ti alloys in low-partial-pressure oxygen environments. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/330614.

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Shykoff, B. Three-Hour Dives with Exercise While Breathing Oxygen Partial Pressure of 1.3 ATM. Defense Technical Information Center, 2007. http://dx.doi.org/10.21236/ada480142.

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Natesan, K., and W. K. Soppet. Tensile properties of V-Cr-Ti alloys after exposure in helium and low-partial-pressure oxygen environments. Office of Scientific and Technical Information (OSTI), 1997. http://dx.doi.org/10.2172/543271.

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Shykoff, B. Pulmonary Effects of Six-Hour Dives: In-Water or Dry Chamber Exposure to an Oxygen Partial Pressure of 1.6 ATM. Defense Technical Information Center, 2005. http://dx.doi.org/10.21236/ada443182.

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Wilson. PR-239-9525-E01 Integrated Test Plan. Pipeline Research Council International, Inc. (PRCI), 1996. http://dx.doi.org/10.55274/r0011046.

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In order to understand and eventually control formaldehyde emissions, it is necessary to investigate formaldehyde formation mechanisms and evaluate the applicability of these mechanisms to industrial gas engines. An extensive literature review was conducted to identify possible formaldehyde formation mechanisms, factors that favor these chemical mechanisms, and the relationships between various engine operating conditions and engine-out formaldehyde emissions. The literature review provided the following information on formaldehyde emissions: Formation and subsequent destruction of formaldehyd

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Veirs, Douglas K. Potential hydrogen and oxygen partial pressures in legacy plutonium oxide packages at Oak Ridge. Office of Scientific and Technical Information (OSTI), 2014. http://dx.doi.org/10.2172/1136463.

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Jones, R. H., C. H. Jr Henager, and C. F. Jr Windisch. High temperature corrosion and crack growth of SiC/SiC at variable oxygen partial pressures. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10182469.

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Shykoff, B. Performance of Various Models in Predicting Vital Capacity Changes Caused by Breathing High Oxygen Partial Pressures. Defense Technical Information Center, 2007. http://dx.doi.org/10.21236/ada480183.

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Mintz, K. J. The explosibility of three canadian coal dusts. Natural Resources Canada/CMSS/Information Management, 1989. http://dx.doi.org/10.4095/331786.

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Explosibility measurements on coal dusts from the Cape Breton Development Corporation's Lingan Mine, TransAlta's Highvale Mine and the Quintette Mine in B.C. have been carried out along with some tests on Pittsburgh Standard coal dust. The Quintette coal dust would not explode in the classical Hartmann apparatus, but did explode in the new 20-L vessel using a more powerful ignition source. The minimum explosible concentrations of the Lingan, Highvale and Pittsburgh coal dusts were all about the same (40 - 45 mg/L), that of the Quintette was higher (140 mg/L). The difference may be attributed t

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