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Hydrogen in solids

Quantitative measurement of light elements (particularly hydrogen) in solid materials, without standards has isotope selectivity... [Pg.52]

The analysis is applicable to all elements except hydrogen in solids, liquids and gases, although it is normally confined to the study of solids in the form of powder or plates. [Pg.25]

Tirira et al. (1996) give a detailed account of both the theory and application of the technique to the determination of hydrogen in solids, to which reference may be made by the interested reader. [Pg.112]

A vast body of theoretical knowledge is available about hydrogen (H) in its atomic form, or as a constituent atom in molecules. Comparatively little theoretical work, however, has been devoted to the behavior of hydrogen in solid-state materials. It is only recently that actual calculations have been carried out for such systems. From a fundamental point of view,... [Pg.600]

JM Schlatter, RH Mazur, O Goodmonson. Hydrogenation in solid phase peptide synthesis. I. Removal of product from the resin. Tetrahedron Lett 2851, 1977. [Pg.140]

Figure 5.3. The high-temperature region of the Mo-H system is shown. In this temperature range the negligible solubility of hydrogen in solid and liquid molybdenum can be noticed. Figure 5.3. The high-temperature region of the Mo-H system is shown. In this temperature range the negligible solubility of hydrogen in solid and liquid molybdenum can be noticed.
The material properties used in the simulations pertain to a new X70/X80 steel with an acicular ferrite microstructure and a uniaxial stress-strain curve described by er, =tr0(l + / )", where ep is the plastic strain, tr0 = 595 MPa is the yield stress, e0=ff0l E the yield strain, and n = 0.059 the work hardening coefficient. The Poisson s ratio is 0.3 and Young s modulus 201.88 OPa. The system s temperature is 0 = 300 K. We assume the hydrogen lattice diffusion coefficient at this temperature to be D = 1.271x10 m2/s. The partial molar volume of hydrogen in solid solution is... [Pg.190]

GOST Standard 21132.1-81. Aluminium and aluminium alloys Techniques for determination of hydrogen in solid metal. GOSSTANDART, Moscow 1991 (Russia)... [Pg.198]

A. Sieverts, E. Jurish, A. Metz, Solubility of hydrogen in solid alloys of palladium with gold, silver, platinum, Z. Anorg. Chem. 91 (1915) 1—45. [Pg.75]

Normatov, I. (1992) Role of hydrogen in solid-phase synthesis reaction of cadmium sulfide, Journal of Inorganic Materials 28(8), 1800-1802. [Pg.87]

GOST 21132.1-98. Aluminum and aluminum alloys. Methods for determination of hydrogen in solid metal by vacuum heating (in Russian)... [Pg.692]

To overcome such issues, much attention is currently being given to storing hydrogen in solid-state materials. Recently emerging materials include doped carbon-based nanostructures [3], metal organic frame vorks [4], metallic hydrides [5], complex hydrides and destabilized hydrides [6, 7]. Ho vever, no material so... [Pg.63]

Colomban, P. and Tomkinson, 1., Novel forms of hydrogen in solids the ionic proton and the quasi-free proton. Solid State Ionics, 97, 123, 1997. [Pg.302]

Khan SA, Sivanandaiah KM. Catal)4ic transfer hydrogenation in solid-phase peptide synthesis synthesis of bradykinin. Synthesis 1978 10 750-751. [Pg.2209]

Lanford W. A., Trautvetter H. P., Ziegler J. F., and Keller J. (1976) New precision technique for measuring the concentration versus depth of hydrogen in solids. Appl. Phys. Lett. 28, 554-570. [Pg.1057]

The storage of hydrogen in solid-solution materials is characterized by endothermic and exothermic phase change reactions. The thermodynamic nature of these reactions requires the full characterization of influential material properties to enable the optimization of heat and mass transfer within the system. Additionally, the thermodynamic nature of the materials will define the containment technologies required to withstand the operational pressures and temperatures. [Pg.83]

The application of neutron scattering to understanding the role of hydrogen in solids has been described in various general reviews [4,5]. Specific applications to intermetallic compounds are described by Richter et al. [6]. Its use in vibrational spectroscopic studies in chemistry, biology, materials science and catalysis are described by Mitchell et al. [7]. For a review of the basic properties of metal-hydrogen systems, we would refer the reader to the book by Fukai [8]. [Pg.137]

Remember also that Ti values are greater when a molecule is small and tumbles rapidly in the solvent. The carbons in cyclopropane have a Tj of 37 sec. Cyclohexane has a smaller value, 20 sec. In a larger molecule such as the steroid cholesterol, all of the carbons except those that are quaternary would be expected to have Ti values less than 1 to 2 sec. The quaternary carbons would have Ti values of about 4 to 6 sec due to the lack of attached hydrogens. In solid polymers, such as polystyrene, the Ti values for the various carbons are around 10 sec. [Pg.181]

Bur] Burylev, B.P., Solubility of Hydrogen in Solid Iron Alloys , Russ. J. Phys. Chem., 40(4), 442-445 (1966) (Phase Relations, Calculation, 12)... [Pg.147]

Carbon increases slightly the solubility of hydrogen in solid phase [1965Sch] and decreases its solubihty in liquid phase [1981Sch]. Under 0.1 MPa of hydrogen pressure at 1600°C, the hydrogen solubihty goes from 1.9 10 mol% for pure iron to 0.6 10 mol% for a hquid of composition FcsC. [Pg.129]


See other pages where Hydrogen in solids is mentioned: [Pg.161]    [Pg.6]    [Pg.189]    [Pg.26]    [Pg.1415]    [Pg.196]    [Pg.212]    [Pg.26]    [Pg.341]    [Pg.296]    [Pg.245]    [Pg.65]    [Pg.61]    [Pg.136]    [Pg.262]    [Pg.4]    [Pg.124]    [Pg.498]    [Pg.490]    [Pg.136]    [Pg.1685]    [Pg.1687]    [Pg.416]    [Pg.145]   
See also in sourсe #XX -- [ Pg.136 , Pg.835 ]




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Hydrogen solid

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