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Author: Terry L. Thiem Publisher: ISBN: Category : Aluminum oxide Languages : en Pages : 36
Book Description
A high temperature mass spectrometer used to obtain laboratory data on the thermochemical properties of materials encountered in space research is described in detail. The experimental procedures and data analysis necessary to obtain thermochemical constants from the mass spectrometer data are also described. The present experimental arrangement allows cell temperatures of up to 2100 K. Reliable measurements at signal levels below 10 ion counts/s can be made because of the very low background signal and the entirely automated data acquisition and averaging system. In preliminary studies of osmium and its oxides, it is shown that the choice of molybdenum as the cell material is detrimental. The use of an alumina Knudsen cell is proposed.
Author: Terry L. Thiem Publisher: ISBN: Category : Aluminum oxide Languages : en Pages : 36
Book Description
A high temperature mass spectrometer used to obtain laboratory data on the thermochemical properties of materials encountered in space research is described in detail. The experimental procedures and data analysis necessary to obtain thermochemical constants from the mass spectrometer data are also described. The present experimental arrangement allows cell temperatures of up to 2100 K. Reliable measurements at signal levels below 10 ion counts/s can be made because of the very low background signal and the entirely automated data acquisition and averaging system. In preliminary studies of osmium and its oxides, it is shown that the choice of molybdenum as the cell material is detrimental. The use of an alumina Knudsen cell is proposed.
Author: Terry L. Thiem Publisher: ISBN: Category : Aluminum oxide Languages : en Pages : 0
Book Description
A high temperature mass spectrometer used to obtain laboratory data on the thermochemical properties of materials encountered in space research is described in detail. The experimental procedures and data analysis necessary to obtain thermochemical constants from the mass spectrometer data are also described. The present experimental arrangement allows cell temperatures of up to 2100 K. Reliable measurements at signal levels below 10 ion counts/s can be made because of the very low background signal and the entirely automated data acquisition and averaging system. In preliminary studies of osmium and its oxides, it is shown that the choice of molybdenum as the cell material is detrimental. The use of an alumina Knudsen cell is proposed.
Author: Terry L. Thiem Publisher: ISBN: Category : Aluminum oxide Languages : en Pages : 34
Book Description
A high temperature mass spectrometer used to obtain laboratory data on the thermochemical properties of materials encountered in space research is described in detail. The experimental procedures and data analysis necessary to obtain thermochemical constants from the mass spectrometer data are also described. The present experimental arrangement allows cell temperatures of up to 2100 K. Reliable measurements at signal levels below 10 ion counts/s can be made because of the very low background signal and the entirely automated data acquisition and averaging system. In preliminary studies of osmium and its oxides, it is shown that the choice of molybdenum as the cell material is detrimental. The use of an alumina Knudsen cell is proposed.
Author: Gerhard Heller Publisher: Elsevier ISBN: 0323141846 Category : Science Languages : en Pages : 998
Book Description
Progress in Astronautics and Aeronautics, Volume 20: Thermophysics of Spacecraft and Planetary Bodies: Radiation Properties of Solids and the Electromagnetic Radiation Environment in Space is a collection of technical papers drawn mainly from the American Institute of Aeronautics and Astronautics Thermophysics Specialist Conference, held in New Orleans on April 17-20, 1967. This volume is organized into six part encompassing 45 chapters that offer a selection of the most advanced studies in the dynamic field of thermophysics. Part I deals with radiation properties of solid state materials and the measuring techniques in the laboratory, while Part II describes the thermophysical properties of surfaces used for spacecraft. The papers of Part II also include solid state physics studies of the processes involved in the interaction of UV radiation with solids. Part III discusses the results of thermal flight experiments and on the radiation characteristics of planetary bodies, followed by topics on general radiative properties and the measurements of radiative properties of natural surfaces from satellites in Part IV. Part V contains papers on thermal similitude and on the closely related subject of radiant heat transfer analysis of thermal systems. Lastly, Part VI focuses on the heat transfer within the spacecraft under the conditions of space environment, specifically conductive and radiative transfer. This book is of great value to thermophysicists, space engineers and designers, as well as researchers in the fields of astronautics and aeronautics.
Author: Gerhard Heller Publisher: Elsevier ISBN: 0323142087 Category : Science Languages : en Pages : 889
Book Description
Progress in Astronautics and Aeronautics, Volume 18: Thermophysics and Temperature Control of Spacecraft and Entry Vehicles is a selection of technical papers based on two American Institute of Aeronautics and Astronautics meetings, namely, The Thermophysics Specialist Conference, held in Monterey, California on September 13-15, 1965 and the Third Aerospace Sciences Conference, held in New York on January 1966. This book covers the most important problems of thermophysical research and technology. This volume is composed of six parts encompassing 42 chapters. Part I contains papers on the thermal radiation properties of solids, including measuring techniques for solar reflectance and infrared emittance determination, and a paper on radiative transfer. Part II deals with the lunar and planetary thermal environment and includes research papers on emissivities, reflectivities, and polarization by planetary atmospheres and planetary surfaces. Part III discusses the effects of the space environment on the optical properties of thermal control surfaces. This part also presents results of flight experiments with sensors of environmental effects and flight experience with thermal coatings of satellites. Part IV covers the thermophysical measurements of ablative materials and with the char layers formed during the actual vehicle entry period or during laboratory simulation tests. Part V looks into the two comparatively areas of thermophysics, namely, the thermal similitude (thermal modeling) and interface resistance of joints under space conditions. Part VI summarizes the practical experience in thermal design gained on spacecraft flights. Thermophysicists, space engineers and designers, and research workers who are interested in thermophysical technology will find this book invaluable.
Author: Terry L. Thiem
Author: Terry L. Thiem
Author: Terry L. Thiem
Author: Terry L. Thiem
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Author: Gerhard Heller
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Author: S. D. Williams
Author: Gerhard Heller