Low Temperature Thermal Expansion Of Plastics
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Low Temperature Thermal Expansion Of Plastics
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Author : Henry L. Laquer
language : en
Publisher:
Release Date : 1952
Low Temperature Thermal Expansion Of Plastics written by Henry L. Laquer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1952 with Expansion (Heat) categories.
Low Temperature Thermal Expansion Of G 10 Plastic And Mylar
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Author :
language : en
Publisher:
Release Date : 1993
Low Temperature Thermal Expansion Of G 10 Plastic And Mylar written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with categories.
This engineering note is a summary of test information and conclusions from the thermal expansion tests conducted at D-O during the fall of 1992. Each test was conducted separately but using the same basic procedure and equipment. While information on material properties at room temperature and above for these products is quite well doccumented, the companies producing these products had no available data about the thermal properties of these materials at cryogenic temperatures. This lack of readily available information prompted these tests to determine the accuracy of using the elevated temperature data for lower temperatures also. The results of each test were written up separately as stand alone short reports for immediate use in the design stages of the V.L.P.C. cryostat cassette. Both short reports are gathered here for convenient reference.
Thermal Expansion Of Technical Solids At Low Temperatures
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Author : Robert Joseph Corruccini
language : en
Publisher:
Release Date : 1961
Thermal Expansion Of Technical Solids At Low Temperatures written by Robert Joseph Corruccini and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1961 with Science categories.
Nonmetallic Materials And Composites At Low Temperature
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Author : G. Hartwig
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Nonmetallic Materials And Composites At Low Temperature written by G. Hartwig and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
This, the second special topical conference on the properties of Non-Metallic Materials at Low Temperatures, was sponsored by the International Cryogenic Materials Conference Board. The potential for plastics materials in the field of cryogenics is vast and as yet only partly explored. In addition, many other materials, which qualify for the title non-metallic but are not 'plastics', have numerous possible outlets in low temperature technology. This conference aimed at providing a forum, whereby specialists from Industry, the Universities and from Government sponsored Institutions could assemble to discuss the extent of our current knowledge. As it transpired, the meeting was also to high light the considerable gaps that still exist in our fundamental understanding of the low temperature behaviour of these materials. On this theme, during the course of the conference, a reference was made to an almost forgotten quotation by Lord Kelvin, who said: "When you cannot measure what you are speaking about, when you cannot express in numbers, your knowledge is of a meagre and unsatisfactory kind; it may be the beginning of knowledge, but you have scarcely in your thoughts advanced to the stage of a science, whatever the matter be." This simple statement sums up the aims, objectives and hopefully the achievements of this conference. To discuss and disseminate the current knowledge on non-metallic materials in order that realistic predictions of in-service performance may be made.
Low Temperature Thermal Expansion Of Various Materials
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Author : Henry L. Laquer
language : en
Publisher:
Release Date : 1952
Low Temperature Thermal Expansion Of Various Materials written by Henry L. Laquer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1952 with categories.
Low Temperature Properties Of Polymers
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Author : I. Perepechko
language : en
Publisher: Elsevier
Release Date : 2013-10-22
Low Temperature Properties Of Polymers written by I. Perepechko and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-22 with Technology & Engineering categories.
Low-Temperature Properties of Polymers systematizes the available materials on polymers. This book also describes the main trends in the investigation of interrelated properties of polymers, such as thermal (heat capacity, thermal conductivity, and thermal expansion), acoustical, dielectric, and viscoelastic, which maintain the physical properties of polymers at low temperatures. Comprised of nine chapters, this book first covers heat capacity of polymers at low temperature, and then tackles thermal conductivity of polymers at low temperatures. Chapter 3 discusses thermal expansion of polymers at low temperatures, and Chapter 4 tackles electrical properties of polymers at low temperatures. The fifth chapter covers nuclear magnetic resonance in polymers at low temperature, while the succeeding chapter encompasses dynamic mechanical properties of polymers at low temperatures. Chapter 7 concerns itself with the acoustical properties of polymers at low temperatures, while the succeeding chapter covers viscoelastic parameters of polymers at low temperatures. The closing chapter covers how to determine the thermophysical characteristics of polymers by acoustic measurement at helium temperature. This book will be of great interest to researchers or professionals whose line of work involves the manipulation and understanding of the properties of polymers.
Low Temperature Properties Of Expanded Polyurethane And Polystyrene
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Author : LL. Sparks
language : en
Publisher:
Release Date : 1980
Low Temperature Properties Of Expanded Polyurethane And Polystyrene written by LL. Sparks and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Building materials categories.
Two materials being used extensively as cryogenic insulations are the expanded plastics polyurethane (PU) and polystyrene (PS). These cellular plastics are excellent thermal insulators with measured values of apparent thermal conductivity at a mean temperature of 112 K being 0.013 to 0.016 W/m.K. The effect of aging and conditions of aging are critical factors in determining the ultimate conductivity. The major component of the overall conductivity, gas conductivity, is affected by permeation of gases through the cell walls. The reasonably high strength-to-density ratio for PU and PS at room temperature, 8 to 9 kPa/kg/m3 compared with ~50 for aluminum alloys and ~25 for stainless steels, allows these insulations to be self-supporting and to lend structural support to the system. The thermal, elastic, and mechanical properties are functions of several nonindependent parameters such as density, cell size, composition, and method of processing. The properties of these expanded plastics are also anisotropic. The large variations found in existing data reflect these complex dependencies. Expected behavior and experimentally determined data are discussed for the following properties: tensile, compressive, and shear strengths and the associated moduli, thermal conductivity, linear thermal expansion, specific heat, and thermal diffusivity. Temperatures below 300 K are considered.
Effect Of Low Temperature 0 To 65 On The Properties Of Plastics
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Author : Joan B. Titus
language : en
Publisher:
Release Date : 1967
Effect Of Low Temperature 0 To 65 On The Properties Of Plastics written by Joan B. Titus and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Plastics categories.
The effects of low temperature on the mechanical, electrical and thermal properties of plastics is discussed. Data are given where available at three temperatures; namely, low temperature, about -65F, room temperature and around 160F to permit complete evaluation. The material is presented by plastic family (in alphabetical order) and is divided into three parts: thermoplastics, thermosets and foams. (Author).
Thermophysical Properties Of Polymers
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Author : Yuli K. Godovsky
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Thermophysical Properties Of Polymers written by Yuli K. Godovsky and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Technology & Engineering categories.
Among various branches of polymer physics an important position is occupied by that vast area, which deals with the thermal behav ior and thermal properties of polymers and which is normally called the thermal physics of polymers. Historically it began when the un usual thermo-mechanical behavior of natural rubber under stretch ing, which had been discovered by Gough at the very beginning of the last century, was studied 50 years later experimentally by Joule and theoretically by Lord Kelvin. This made it possible even at that time to distinguish polymers from other subjects of physical investigations. These investigation laid down the basic principles of solving the key problem of polymer physics - rubberlike elasticity - which was solved in the middle of our century by means of the statistical thermodynamics applied to chain molecules. At approx imately the same time it was demonstrated, by using the methods of solid state physics, that the low temperature dependence of heat capacity and thermal expansivity of linear polymers should fol low dependencies different from that characteristic of nonpolymeric solids. Finally, new ideas about the structure and morphology of polymers arised at the end of the 1950s stimulated the development of new thermal methods (differential scanning calorimetry, defor mation calorimetry), which have become very powerful instruments for studying the nature of various states of polymers and the struc tural heterogeneity.
Nonmetallic Materials And Composites At Low Temperatures
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Author : Günther Hartwig
language : en
Publisher: Springer
Release Date : 2013-11-11
Nonmetallic Materials And Composites At Low Temperatures written by Günther Hartwig and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Science categories.
This was the third meeting in the series of special topical conferences on Non-Metallic materials at low temperatures. The first meeting was in Munich in 1978, the second in Geneva (1980) and so Heidelberg 1984 seemed an obvious time to review some of the hopes and objectives of the earlier meetings. It is also appropriate to consider the changing needs of the cryogenic community and how best the theory and practice of Non-metallic materials can be applied to suit this dynamic young science. The aims and objectives of the International Cryogenic Materials Board in sponsoring this meeting remain the same. Namely, to provide a forum where practicing Engineers can meet with materials suppliers and researchers in an attempt to ensure that a real understanding exists between the two sides of the Cryogenic Materials Community. In this atmosphere, real problems can be addressed together with full discussions of tried and tested practical solutions. It is in this way that knowledge and confidence may grow hand in hand with the logical growth of the industry.