739. Which metals for cryogenic applications?

Classified Abstracts

Materials 40.

and Techniques

728-145

used

287

in Vacuum

Gases and Vapours

41

40 728. Threshold laws for processes of autoionization. (U.S.A.) J. D. Morrison, J. Chem. Phys., 40 (9), 1 May, 1964, 2488-2492. 40 of hydrogen on tungsten and molyb-

729. Adsorption-desorption denum. (U.S.A.) G. E. Moore and F. C. Underwald, 1964, 2626-2638.

How ductile is molydbenum tubing ? L. C. Shaheen, Metal Progress, 85 (5), May 1964, 112-l 14.

738.

41

Which metals for cryogenic applications ? H. Hamilton and M. Katcher, Materials in Design 59 (5), 1 May 1964,83-86. 739.

730. Thermal dissociation of hydrogen. (U.S.A.) G. E. Moore and F. C. Underwald, J. Chem. Phys., 40 (9), 1 May 1964, 2639-2653.

43.

2731. 40

Mass spectrometric study of vapour ejected from graphite and other solids bv focused laser beams. (U.S. A.) J. Berkowitz and W. A. Chupka, J. Chem. Phys., 40 (9), 1 May 1964, 2735-2736. 732.

45.

Ionization

of

oxygen

by

“ monoenergetic

”

40 (lo), 15 May 1964,2995-2998.

40 734. Gaseous ion recombination rates. (U.S.A.) B. H. Mahan and J. C. Person, J. Chem. Phy~. 40 (IO), 15 May 1964, 2851-2859. 40

Soldering, Welding, Brazing, Solders 45

741. Welding (U.S.A.)

18 per cent Ni manganin steel by electron beam.

M. L. Kohn and C. D. Schapes, MelalProgress, 93-94

47. 40 electrons.

Plastics and Elastomers

43 740. New family of tough, rubber-like plastics. Anon, Materials in Design Engineering, 59 (51, May 1964, 96-97.

40 731. Mass spectrometric study of the isotopic exchange rate of oxygen atoms with 0,, NO, and NO,. (U.S. A.) J. T. Herron and F. S. Klein, J. Chem. Phys., 40 (9), 1 May 1964,

(U.S.A.) C. E. Brion, J. Chem. Phys.,

Engineering,

J. Chem. Whys., 40 (9), 1 May 40

733.

Technology

Outgassing

85 (5), May 1964,

Data, Vapour Pressure Data, Gettering Data

47 742. The vapor pressure and heat and entropy of sublimation of solid magnesium fluoride. (U.S.A.) M. A. Greenbaum et al., J. Phys. Chem., 68, April 1964,965-968. 47 743. The vapor pressures of silicon tetrachloride below their melting points. (U.S.A.) P. Balk and D. Dong, J. Phys. Chem., 68, April 1964, 960-962.

Collision cross sections of oxygen in the excitation energy range lo-80 eV. (U.S. A.) S. M. Silverman and E. N. Lassetre, J. Chem. Phys., 40 (IO), 15 May 1964,2922-2932. 735.

41.

Metals and Alloys

41 736. Scattering of atomic beams by polycrystalline nickel. (U.S.A.) Joe N. Smith Jr., J. Chem. Phys., 40 (9), 1 May 1964, 2520-2527. 41

How strong is molybdenum sheet ? (U.S.A.) A. K. Hegedus, Metal Progress, 85 (5), May 1964, 115-117.

737.

49.

Miscellaneous

Materials and Techniques

49 744. Chemisorption and surface defects in irradiated magnesium oxide. (U.S.A.) R. L. Nelson and A. J. Trench, J. Chem. Phys., 40 (9), 1 May 1964, 2736-2737. 745. Discontinuity

49 in the rate of evaporation of aluminium oxide.

(U.S.A.)

R. P. Burns, et al., J. Chem. Phys., 40 (9), 1 May 1964, 2739-2740.