Relevant bibliographies by topics / Hydrides – Thermal properties – Testing

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Hydrides – Thermal properties – Testing'

Author: Grafiati
Published: 4 June 2021
Last updated: 6 February 2022

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Journal articles on the topic "Hydrides – Thermal properties – Testing"

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Pentimalli, Marzia, Andrea Frazzica, Angelo Freni, Enrico Imperi, and Franco Padella. "Metal Hydride-Based Composite Materials with Improved Thermal Conductivity and Dimensional Stability Properties." Advances in Science and Technology 72 (October 2010): 170–75. http://dx.doi.org/10.4028/www.scientific.net/ast.72.170.

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To address the issues of poor thermal conductivity and fragmentation of metal hydride particles undergoing hydriding/dehydriding reactions, a metal hydride-based composite material was developed. The active metal phase was embedded in a silica matrix and a graphite filler was incorporated by ball milling. A set of compact pellet samples at different composition were prepared and tested. Experimental data obtained from the thermal conductivity measurements shown that using powder graphite produced a quite linear increase in the thermal conductivity of the metal hydride – silica composite. Ongoing studies include composition optimization as well as long-term testing upon cycling of such metal hydride composites to evaluate their potentiality in technological hydrogen storage applications.
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Song, Carol. "IRRADIATION EFFECTS ON ZR-2.5NB IN POWER REACTORS." CNL Nuclear Review 5, no. 1 (June 2016): 17–36. http://dx.doi.org/10.12943/cnr.2016.00010.

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Zirconium alloys are widely used as structural materials in nuclear applications because of their attractive properties such as a low absorption cross-section for thermal neutrons, excellent corrosion resistance in water, and good mechanical properties at reactor operating temperatures. Zr-2.5Nb is one of the most commonly used zirconium alloys and has been used for pressure tube materials in CANDU (Canada Deuterium Uranium) and RBMK (Reaktor Bolshoy Moshchnosti Kanalnyy, “High Power Channel-type Reactor”) reactors for over 40 years. In a recent report from the Electric Power Research Institute, Zr-2.5Nb was identified as one of the candidate materials for use in normal structural applications in light-water reactors owing to its increased resistance to irradiation-induced degradation as compared with currently used materials. Historically, the largest program of in-reactor tests on zirconium alloys was performed by Atomic Energy of Canada Limited. Over many years of in-reactor testing and CANDU operating experience with Zr-2.5Nb, extensive research has been conducted on the irradiation effects on its microstructures, mechanical properties, deformation behaviours, fracture toughness, delayed hydride cracking, and corrosion. Most of the results on Zr-2.5Nb obtained from CANDU experience could be used to predict the material performance under light water reactors. This paper reviews the irradiation effects on Zr-2.5Nb in power reactors (including heavy-water and light-water reactors) and summarizes the current state of knowledge.
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Setoyama, Daigo, Junji Matsunaga, Masato Ito, Hiroaki Muta, Ken Kurosaki, Masayoshi Uno, and Shinsuke Yamanaka. "Thermal properties of titanium hydrides." Journal of Nuclear Materials 344, no. 1-3 (September 2005): 298–300. http://dx.doi.org/10.1016/j.jnucmat.2005.04.059.

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Ito, Masato, Daigo Setoyama, Junji Matsunaga, Hiroaki Muta, Ken Kurosaki, Masayoshi Uno, and Shinsuke Yamanaka. "Electrical and thermal properties of titanium hydrides." Journal of Alloys and Compounds 420, no. 1-2 (August 2006): 25–28. http://dx.doi.org/10.1016/j.jallcom.2005.10.032.

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Tsuchiya, B., Y. Arita, H. Muta, K. Kurosaki, K. Konashi, S. Nagata, and T. Shikama. "Thermal transport properties of hafnium hydrides and deuterides." Journal of Nuclear Materials 392, no. 3 (August 2009): 464–70. http://dx.doi.org/10.1016/j.jnucmat.2009.04.009.

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Kojima, Y., M. Watanabe, M. Yamada, and K. Tanaka. "Phase stability and thermal desorption properties of Ti3Al hydrides." Journal of Alloys and Compounds 359, no. 1-2 (September 2003): 272–77. http://dx.doi.org/10.1016/s0925-8388(03)00202-0.

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Araki, Daichi, Ken Kurosaki, Hiroaki Kimura, Hiroaki Muta, Yuji Ohishi, Kenji Konashi, and Shinsuke Yamanaka. "Thermal and mechanical properties of hydrides of Zr–Hf alloys." Journal of Nuclear Science and Technology 52, no. 2 (July 3, 2014): 162–70. http://dx.doi.org/10.1080/00223131.2014.935509.

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KEMPF, A., and W. MARTIN. "Measurement of the thermal properties of TiFe0.85Mn0.15 and its hydrides." International Journal of Hydrogen Energy 11, no. 2 (1986): 107–16. http://dx.doi.org/10.1016/0360-3199(86)90048-0.

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KIMURA, Hiroaki, Ken KUROSAKI, Hiroaki MUTA, Yuji OHISHI, Kenji KONASHI, and Shinsuke YAMANAKA. "Effects of Hf on Thermal and Mechanical Properties of Zr Hydrides." Transactions of the Atomic Energy Society of Japan 12, no. 1 (2013): 67–75. http://dx.doi.org/10.3327/taesj.j11.052.

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Kato, Yasuo, Junji Kurima, and Akira Gunge. "701 Measurement of absorption characteristics and thermal properties for Metal Hydrides." Proceedings of Conference of Chugoku-Shikoku Branch 2007.45 (2007): 237–38. http://dx.doi.org/10.1299/jsmecs.2007.45.237.

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Dissertations / Theses on the topic "Hydrides – Thermal properties – Testing"

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Kuklane, Kalev. "Footwear for cold environments : thermal properties, performance and testing /." Solna : National Institute for Working Life (Arbetslivsinstitutet), 1999. http://epubl.luth.se/1402-1544/1999/36/index.html.

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Fu, Chia-Yu. "Application of internal state variable models to thermal processing and reliability of plated through holes in printed wiring boards." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/17375.

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Woodmansee, Michael W. "Thermal cycling and rate-dependent stress relaxation behavior of solders." Thesis, Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/17301.

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Amoah-Kusi, Christian. "Constant Interface Temperature Reliability Assessment Method: An Alternative Method for Testing Thermal Interface Material in Products." PDXScholar, 2015. https://pdxscholar.library.pdx.edu/open_access_etds/2295.

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As electronic packages and their thermal solutions become more complex the reliability margins in the thermal solutions diminish and become less tolerant to errors in reliability predictions. The current method of thermally stress testing thermal solutions can be over or under predicting end of life thermal performance. Benefits of accurate testing and modeling are improved silicon yield in manufacturing, improved performance, lower cost thermal solutions, and shortened test times. The current method of thermally stress testing is to place the entire unit in an elevated isothermal temperature and periodically measure thermal performance. Isothermally aging is not an accurate representation of how the unit will be used by the customer and does not capture the thermal gradients and mechanical stresses due to different coefficients of thermal expansion of the materials used in the thermal solution. A new testing system, CITRAM which is an acronym for Constant Interface Temperature Reliability Method, has been developed that uses an electronic test board. The approach captures the thermal and mechanical stresses accurately and improves test time by 20-30% as a result of automation. Through this study a difference in the two methods has been identified and the new CITRAM method should be adopted as current practice.
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Xie, Weidong. "Thermo-mechanical evaluation of interfacial integrity in multilayered microelectronic packages." Diss., Georgia Institute of Technology, 2001. http://hdl.handle.net/1853/17380.

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Del, Zio Michael R. (Michael Robert) 1982. "Design and testing of the thermal properties of the structure of an ultra high-throughput mutational spectrometer." Thesis, Massachusetts Institute of Technology, 2004. http://hdl.handle.net/1721.1/32822.

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Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2004.
Includes bibliographical references (leaves 42-43).
A process known as mutational spectrometry allows the detection of both single and multiple mutations that appear to be spontaneous, using a technique known as constant denaturing capillary electrophoresis (CDCE). CDCE requires a region of constant temperature and concentration of denaturant. A massively parallel, fully automated instrument, capable of handling as many as 10,000 DNA samples simultaneously, is suited to this technique. A modular structure of such a mutational spectrometer was designed to remain water-tight, provide an array to hold the capillaries for electrophoretic excitation, and modulate the flow of a heat transfer fluid. Six such modules were manufactured and assembled. As the heat transfer fluid passed through the assembled structure, the natural thermal loss was determined.
by Michael R. Del Zio.
S.B.
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Long, Ethan Schuyler. "The Role of Temperature in Testing Deep Submicron CMOS ASICs." PDXScholar, 2003. https://pdxscholar.library.pdx.edu/open_access_etds/34.

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Among the many efforts to improve the IC test process are tests that attempt to differentiate between healthy and defective or low reliability ICs by manipulating the operating conditions of the IC being tested. This thesis attempts to improve the common understanding of multiple and targeted temperature testing by evaluating work published on the subject to date and by presenting previously unpublished empirical observations. The empirical observations are made from SCAN and LBIST based MinVDD measurements, Static IDD measurements, as well as parametric measurements of transistor characteristics. The test vehicles used are 0.25μm and 0.18μm CMOS ASICs fabricated by LSI Logic. An IC’s performance is bound by a three dimensional space defined by VDD, frequency, and temperature. A model is presented to explain the boundaries of the performance region in terms of the ability of the IC’s constituent transistors to provide power and the Zero-Temperature-Coefficient (ZTC). Also, it is determined that multiple temperature testing can add new tests to current test suites to improve the resolution between healthy and defective ICs.
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Namjoshi, Shanatanu Ashok. "Reaction synthesis of dynamically-densified Ti-based intermetallic and ceramic forming powders." Diss., Georgia Institute of Technology, 1999. http://hdl.handle.net/1853/19572.

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Sung, Taehyun. "Variable frequency microwave curing of polymer dielectrics on metallized organic substrates." Thesis, Available online, Georgia Institute of Technology, 2004:, 2003. http://etd.gatech.edu/theses/available/etd-04082004-180423/unrestricted/sung%5ftaehyun%5f200312%5fms.pdf.

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Shen, Yijiang, and 沈逸江. "Efficient finite-difference schemes in thermal analysis and inverse lithography for integrated circuit manufacturing." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2010. http://hub.hku.hk/bib/B45455041.

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Books on the topic "Hydrides – Thermal properties – Testing"

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1954-, Rubio Antonio, ed. Thermal testing of integrated circuits. Boston: Kluwer Academic Publishers, 2002.

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Thermal analysis of materials. New York: Marcel Dekker, 1994.

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Oettinger, Frank F. Thermal resistance measurements. Gaithersburg, MD: U.S. Dept. of Commerce, National Institute of Standards and Technology, 1990.

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Oettinger, Frank F. Thermal resistance measurements. Gaithersburg, MD: U.S. Dept. of Commerce, National Institute of Standards and Technology, 1990.

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Horn, Thomas J. A technique for transient thermal testing of thick structures. Washington, D.C: National Aeronautics and Space Administration, Office of Management, Scientific and Technical Information Division, 1997.

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Jenkins, Michael G., Edgar Lara-Curzio, and Stephen T. Gonczy. Mechanical, thermal, and environmental testing and performance of ceramic composites and components. West Conshohocken, PA: ASTM, 2000.

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Krause, Henryk. Podstawy temperaturowej diagnostyki izolacyjności cieplnej przegród budowlanych. Gliwice: Politechnika Śląska, 1993.

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McKeen, Laurence W. The effect of creep and other time related factors on plastics and elastomers. 2nd ed. Norwich, N.Y: W. Andrew, 2009.

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The effect of temperature and other factors on plastics and elastomers. 2nd ed. Norwich, NY: Plastics Design Library/William Andrew, 2008.

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Kanarchuk, Vadim Evgenʹevich. Beskontaktnai͡a︡ teplovai͡a︡ diagnostika mashin. Moskva: "Mashinostroenie", 1987.

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Book chapters on the topic "Hydrides – Thermal properties – Testing"

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Naranjo, Alberto, María del Pilar Noriega E., Tim A. Osswald, Alejandro Roldán-Alzate, and Juan Diego Sierra. "Thermal Properties." In Plastics Testing and Characterization, 75–126. München: Carl Hanser Verlag GmbH & Co. KG, 2008. http://dx.doi.org/10.3139/9783446418530.004.

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Brown, R. P. "Thermal properties." In Physical Testing of Rubber, 228–34. Dordrecht: Springer Netherlands, 1996. http://dx.doi.org/10.1007/978-94-011-0529-3_14.

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Buck, Wolfgang, and Steffen Rudtsch. "Thermal Properties." In Springer Handbook of Metrology and Testing, 453–83. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-16641-9_8.

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Vavilov, Vladimir, and Douglas Burleigh. "Determining Thermal Properties of Materials." In Infrared Thermography and Thermal Nondestructive Testing, 47–91. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-48002-8_3.

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Ružbarský, Juraj, and Anton Panda. "Assessment of Properties of Films on Cylindrical Testing Rods." In Plasma and Thermal Spraying, 89. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-46273-8_11.

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Mikulić, D., B. Milovanović, and I. Gabrijel. "Analysis of Thermal Properties of Cement Paste During Setting and Hardening." In Nondestructive Testing of Materials and Structures, 465–71. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0723-8_66.

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Broadbent, A. J., J. Crozier, P. McDonald, K. D. Smith, A. J. Street, and J. M. Wiatrzyk. "Low-Temperature Thermal Properties from the EU Testing Program for Potential ITER Insulation." In Advances in Cryogenic Engineering Materials, 161–68. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4757-9059-7_22.

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Kim, Young T., Hezhong Wang, and Byungjin Min. "Testing of Physical, Optical, Electrical, Thermal, and Rheological Properties for Plastic Packaging Materials." In Food Packaging Materials, 67–102. Boca Raton : CRC Press, 2017.: CRC Press, 2017. http://dx.doi.org/10.4324/9781315374390-3.

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Frydman, A., and J. A. Barclay. "Determination of Thermal Properties of Solid Porous Media on a Single-Blow Testing Apparatus." In Advances in Cryogenic Engineering, 1205–12. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4215-5_32.

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Rother, Michael J., and Jay T. Higasbi. "An Automated Material Testing System for Evaluating the Effects of Thermal Mechanical Fatigue on Material Properties." In Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials, 320–24. Dordrecht: Springer Netherlands, 1987. http://dx.doi.org/10.1007/978-94-009-3459-7_48.

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Conference papers on the topic "Hydrides – Thermal properties – Testing"

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Korinko, Paul S., Robert L. Sindelar, and Ronald L. Kesterson. "Comparison of Ring Compression Testing to Three Point Bend Testing for Unirradiated ZIRLO Cladding." In ASME 2015 Pressure Vessels and Piping Conference. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/pvp2015-45984.

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Safe shipment and storage of nuclear reactor discharged fuel requires an understanding of how the fuel may perform under the various conditions that can be encountered. One specific focus of concern is performance during a shipment drop accident. Tests at Savannah River National Laboratory (SRNL) are being performed to characterize the properties of fuel clad relative to a mechanical accident condition such as a container drop. Unirradiated ZIRLO tubing samples have been charged with a range of hydride levels to simulate actual fuel rod levels. Samples of the hydrogen charged tubes were exposed to a radial hydride growth treatment (RHGT) consisting of heating to 400°C, applying initial hoop stresses of 90 to 170 MPa with controlled cooling and producing hydride precipitates. Initial samples have been tested using both a) ring compression test (RCT) which is shown to be sensitive to radial hydride and b) three-point bend tests which are less sensitive to radial hydride effects. Hydrides are generated in Zirconium based fuel cladding as a result of coolant (water) oxidation of the clad, hydrogen release, and a portion of the released (nascent) hydrogen absorbed into the clad and eventually exceeding the hydrogen solubility limit. The orientation of the hydrides relative to the subsequent normal and accident strains has a significant impact on the failure susceptability. In this study the impacts of stress, temperature and hydrogen levels are evaluated in reference to the propensity for hydride reorientation from the circumferential to the radial orientation. In addition the effects of radial hydrides on the Quasi Ductile Brittle Transition Temperature (DBTT) were measured. The results suggest that a) the severity of the radial hydride impact is related to the hydrogen level-peak temperature combination (for example at a peak drying temperature of 400°C; 800 PPM hydrogen has less of an impact/ less radial hydride fraction than 200 PPM hydrogen for the same thermal history) and b) for critical strains in post drying handling, storage and accident conditions the 3 point bend strain tolerance is less affected by radial hydrides than the conventional ring compression test (the radial hydride related Quasi DBTT associated with a three point bend straining is lower (better) than that measured by the ring compression tests).
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Park, Chanwoo, Kwang J. Kim, Joseph Gottschlich, and Quinn Leland. "High Performance Heat Storage and Dissipation Technology." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-82313.

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High power solid state laser systems operating in a pulse mode dissipate the transient and excessively large waste heat from the laser diode arrays and gain material. The heat storage option using Phase Change Materials (PCMs) has been considered to manage such peak heat loads not relying on oversized systems for real-time cooling. However, the PCM heat storage systems suffer from the low heat storage densities and poor thermal conductivities of the conventional PCMs, consequently requiring large PCM volumes housed in thermal conductors such as aluminum or graphite foams. We developed a high performance metal hydride heat storage system for efficient and passive acquisition, storage, transport and dissipation of the transient, high heat flux heat from the high power solid state laser systems. The greater volumetric heat storage capacity of metal hydrides than the conventional PCMs can be translated into very compact systems with shorter heat transfer paths and therefore less thermal resistance. Other exclusive properties of the metal hydride materials consist of fast thermal response and active cooling capability required for the precision temperature control and transient high heat flux cooling. This paper discusses the operating principle and heat storage performance results of the metal hydride heat storage system through system analysis and prototype testing. The results revealed the superior heat storage performance of the metal hydride system to a conventional PCM system in terms of temperature excursion and system volume requirement.
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Flueckiger, Scott, Yuan Zheng, and Timothe´e Pourpoint. "Transient Plane Source Method for Thermal Property Measurements of Metal Hydrides." In ASME 2008 Heat Transfer Summer Conference collocated with the Fluids Engineering, Energy Sustainability, and 3rd Energy Nanotechnology Conferences. ASMEDC, 2008. http://dx.doi.org/10.1115/ht2008-56311.

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Metal hydrides are promising hydrogen storage materials with potential for practical use in a passenger car. To be a viable hydrogen storage option, metal hydride heat transfer behavior must be well understood and accounted for. As such, the thermal properties of the metal hydride are measured and compiled to assess this behavior. These properties include thermal conductivity, specific heat, and thermal diffusivity. The transient plane source (TPS) method was selected primarily due to a high level of versatility, including customization for high pressure hydrogen environments. To perform this measurement, a TPS 2500 S thermal property analyzer by the Hot Disk Company was employed. To understand the measurement and analysis process of the TPS method, two different sample materials were evaluated at ambient conditions. These samples included a stainless steel pellet and an inactivated (non-pyrophoric) metal hydride pellet. Thermal conductivity and thermal diffusivity of these samples were measured using the TPS method. The thermal property measurements are compared to the data available in the literature (stainless steel) and the data obtained using laser flash method (metal hydride). The improvements needed to successfully implement the TPS method are discussed in detail.
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Flueckiger, Scott, Tyler Voskuilen, Yuan Zheng, and Timothe´e Pourpoint. "Advanced Transient Plane Source Method for the Measurement of Thermal Properties of High Pressure Metal Hydrides." In ASME 2009 Heat Transfer Summer Conference collocated with the InterPACK09 and 3rd Energy Sustainability Conferences. ASMEDC, 2009. http://dx.doi.org/10.1115/ht2009-88231.

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Metal hydrides are a promising material type for hydrogen storage in automotive applications, but thermal property data is needed to optimize the necessary heat exchangers. In the present work, the transient plane source method is integrated with a pressure vessel to measure these properties for metal hydride powder as a function of pressure during the hydrogenation process. The properties under investigation include effective thermal conductivity, thermal diffusivity, specific heat, and thermal contact resistance. The results of this work with oxidized Ti1.1CrMn powder provide effective thermal conductivity values similar to data reported in literature for other metal hydride materials. The experimental measurements are also well modeled by the Zehner-Bauer-Schlu˝nder interpretive model for packed beds as a function of gas pressure. Extending the test method and ZBS model to estimate the contact resistance provides values that were two orders of magnitude less than measurements previously reported for other hydride materials.
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Adams, Arnold, Fred Nicol, Steve McHugh, John Moore, Gregory Matis, and Gabriel A. Amparan. "Vantablack properties in commercial thermal infrared imaging systems." In Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXX, edited by Keith A. Krapels and Gerald C. Holst. SPIE, 2019. http://dx.doi.org/10.1117/12.2518768.

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Shek, Gordon K., and Jun Cui. "Effects of Temperature and Thermal Cycling on the Threshold Stress Intensity Factor for Delayed Hydride Cracking in Zr-2.5Nb Pressure Tubes." In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-77332.

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CANDU™ reactor uses Zr-2.5 Nb alloy pressure tubes as the primary coolant containment. The pressure tubes are susceptible to a crack initiation and growth mechanism known as Delayed Hydride Cracking (DHC), which is a repetitive process that involves hydrogen diffusion, hydride precipitation, hydrided region formation and fracture at a crack-tip. The threshold stress intensity factor for DHC initiation from a crack, KIH, is an important material parameter for assessing DHC initiation from crack-like or blunt flaws in the pressure tubes. Tests were performed on compact tension samples machined from hydrided unirradiated pressure tubes over the temperature range of 105°C and 286°C to determine the effect of test temperature on KIH. The results indicated that KIH values increased by about 10% from 105°C to 200°C. From 200°C to 286°C, a larger increase in the order of 30% was observed. The crack-tip hydrides when KIH was reached at different test temperatures were examined by metallography which showed that the hydrides had a taper shape and increased in both thickness and length with increasing test temperature. The test results were discussed in terms of the temperature dependence of material properties of the zirconium matrix and zirconium hydrides, as well as the hydride formation process. Implication of the experimental observations on the hydride fracture criteria was discussed. Another set of KIH tests was performed on C-shape hydrided unirradiated pressure tube samples to obtain KIH values under thermal cycling conditions. The test results were compared to KIH values obtained under isothermal condition at a test temperature of 200°C. The results indicated that the difference in KIH values was small and can be accounted for by the dependence of KIH on temperature.
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Kadathala, Linganna, Jung-Hwan In, June Park, and JuHyeon Choi. "Thermal and mechanical properties of tellurite glasses for mid-IR molded glass lens applications." In Optical Manufacturing and Testing XII, edited by Rolf Rascher, Ray Williamson, and Dae Wook Kim. SPIE, 2018. http://dx.doi.org/10.1117/12.2320438.

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Xu, Jianbin, Le Chen, Leitao Han, and Bin Shen. "A testing system for thermal properties of solar gravity heat-pipes." In 2015 IEEE 10th Conference on Industrial Electronics and Applications (ICIEA). IEEE, 2015. http://dx.doi.org/10.1109/iciea.2015.7334240.

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Ueno, Haruka, Tomohiro Kamiya, and Tadahito Mizutani. "Evaluation of changes in physical properties of low thermal expansion ceramics and glass induced by radiation." In Optical Manufacturing and Testing XII, edited by Rolf Rascher, Ray Williamson, and Dae Wook Kim. SPIE, 2018. http://dx.doi.org/10.1117/12.2320930.

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Cui, Jun, and Gordon K. Shek. "Effects of Hydride Morphology and Test Temperature on Fracture Toughness of Zr-2.5Nb Pressure Tube Material." In ASME 2009 Pressure Vessels and Piping Conference. ASMEDC, 2009. http://dx.doi.org/10.1115/pvp2009-77260.

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CANDU® reactor uses Zr-2.5Nb alloy pressure tubes as the primary coolant containment. Fracture toughness properties of the pressure tubes are required for evaluation of fracture initiation and leak-before-break. This paper presents an experimental study on the effects of hydride morphology and test temperature on axial fracture toughness of a cold-worked, unirradiated Zr-2.5Nb pressure tube. Compact tension specimens were prepared from one tube section which contained as-received hydrogen concentration and another section which was electrolytically hydrided to 70 ppm hydrogen. Reoriented hydrides were formed in the hydrided tube section in ten thermal cycles under an applied tensile hoop stress of 160 MPa. The hydride morphologies were characterized by a parameter referred to as the hydride continuity coefficient (HCC), which provided a measure of the extent to which the hydrides were reoriented with respect to the applied stress direction. Partially reoriented hydrides with HCC between 0.3–0.4 were formed under the stress and temperature cycles used to precipitate the hydrides. J-R curves were generated to characterize the fracture behavior of the specimens tested at five different temperatures: 25°C (room temperature), 100°C, 150°C, 200°C and 250°C. Test results indicate that, for the as-received specimens, the fracture toughness is relatively high at room temperature and not significantly affected by the test temperature between room temperature and 250°C. For the 70 ppm hydrided specimens containing partially reoriented hydrides, the fracture toughness is significantly lower than that of the as-received specimens at room temperature. At 100°C, the fracture toughness is higher than that at room temperature but the average value is still lower than that of the as-received specimens. The specimens exhibit either brittle or ductile fracture behavior with a sharp transition to an upper-shelf toughness value. At 150°C, the specimens achieve an upper-shelf toughness level. Between 150°C and 250°C, the fracture toughness is similar to that of the as-received specimens and not affected by the reoriented hydrides.
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Reports on the topic "Hydrides – Thermal properties – Testing"

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Chandra, Dhanesh, Joshua Lamb, Wen-Ming Chien, Anjali Talekar, and Narendra and Pal. Effect of Gaseous Impurities on Long-Term Thermal Cycling and Aging Properties of Complex Hydrides for Hydrogen Storage. Office of Scientific and Technical Information (OSTI), March 2011. http://dx.doi.org/10.2172/1010941.

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Mohanty, Subhasish, Jae Phil Park, and Joseph T. Listwan. A System-Level Framework For Fatigue Life Prediction of PWR Pressurizer-Surge-Line Nozzle under Design-Basis Loading Cycles. A complete tensile test based material properties database and preliminary results on 3D weld process modeling, thermal-mechanical stress analysis and environmental fatigue testing. Office of Scientific and Technical Information (OSTI), September 2019. http://dx.doi.org/10.2172/1571258.

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Lager, Daniel, Lia Kouchachvili, and Xavier Daguenet. TCM measuring procedures and testing under application conditions. IEA SHC Task 58, May 2021. http://dx.doi.org/10.18777/ieashc-task58-2021-0004.

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This Subtask aims to have reliable thermal analysis methods/protocols and procedures for the characterization of aterial and reaction properties for sorption and chemical reactions of thermal energy storage (TES) applications. One goal is an inventory of already standardized measurement procedures for TCM as well as of needed characterization procedures.
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4

Wei, Fulu, Ce Wang, Xiangxi Tian, Shuo Li, and Jie Shan. Investigation of Durability and Performance of High Friction Surface Treatment. Purdue University, 2021. http://dx.doi.org/10.5703/1288284317281.

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The Indiana Department of Transportation (INDOT) completed a total of 25 high friction surface treatment (HFST) projects across the state in 2018. This research study attempted to investigate the durability and performance of HFST in terms of its HFST-pavement system integrity and surface friction performance. Laboratory tests were conducted to determine the physical and mechanical properties of epoxy-bauxite mortar. Field inspections were carried out to identify site conditions and common early HFST distresses. Cyclic loading test and finite element method (FEM) analysis were performed to evaluate the bonding strength between HFST and existing pavement, in particular chip seal with different pretreatments such as vacuum sweeping, shotblasting, and scarification milling. Both surface friction and texture tests were undertaken periodically (generally once every 6 months) to evaluate the surface friction performance of HFST. Crash records over a 5-year period, i.e., 3 years before installation and 2 years after installation, were examined to determine the safety performance of HFST, crash modification factor (CMF) in particular. It was found that HFST epoxy-bauxite mortar has a coefficient of thermal expansion (CTE) significantly higher than those of hot mix asphalt (HMA) mixtures and Portland cement concrete (PCC), and good cracking resistance. The most common early HFST distresses in Indiana are reflective cracking, surface wrinkling, aggregate loss, and delamination. Vacuum sweeping is the optimal method for pretreating existing pavements, chip seal in particular. Chip seal in good condition is structurally capable of providing a sound base for HFST. On two-lane highway curves, HFST is capable of reducing the total vehicle crash by 30%, injury crash by 50%, and wet weather crash by 44%, and providing a CMF of 0.584 in Indiana. Great variability may arise in the results of friction tests on horizontal curves by the use of locked wheel skid tester (LWST) due both to the nature of vehicle dynamics and to the operation of test vehicle. Texture testing, however, is capable of providing continuous texture measurements that can be used to calculate a texture height parameter, i.e., mean profile depth (MPD), not only for evaluating friction performance but also implementing quality control (QC) and quality assurance (QA) plans for HFST.
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Baral, Aniruddha, Jeffrey Roesler, M. Ley, Shinhyu Kang, Loren Emerson, Zane Lloyd, Braden Boyd, and Marllon Cook. High-volume Fly Ash Concrete for Pavements Findings: Volume 1. Illinois Center for Transportation, September 2021. http://dx.doi.org/10.36501/0197-9191/21-030.

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High-volume fly ash concrete (HVFAC) has improved durability and sustainability properties at a lower cost than conventional concrete, but its early-age properties like strength gain, setting time, and air entrainment can present challenges for application to concrete pavements. This research report helps with the implementation of HVFAC for pavement applications by providing guidelines for HVFAC mix design, testing protocols, and new tools for better quality control of HVFAC properties. Calorimeter tests were performed to evaluate the effects of fly ash sources, cement–fly ash interactions, chemical admixtures, and limestone replacement on the setting times and hydration reaction of HVFAC. To better target the initial air-entraining agent dosage for HVFAC, a calibration curve between air-entraining dosage for achieving 6% air content and fly ash foam index test has been developed. Further, a digital foam index test was developed to make this test more consistent across different labs and operators. For a more rapid prediction of hardened HVFAC properties, such as compressive strength, resistivity, and diffusion coefficient, an oxide-based particle model was developed. An HVFAC field test section was also constructed to demonstrate the implementation of a noncontact ultrasonic device for determining the final set time and ideal time to initiate saw cutting. Additionally, a maturity method was successfully implemented that estimates the in-place compressive strength of HVFAC through wireless thermal sensors. An HVFAC mix design procedure using the tools developed in this project such as the calorimeter test, foam index test, and particle-based model was proposed to assist engineers in implementing HVFAC pavements.
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