872. Welding and brazing of tantalum and columbium

872. Welding and brazing of tantalum and columbium

332 Classified Abstracts 870--873 Materials and .Techniques used in Vacuum Technology 40. 42. Gases and Vapours 40:14 Molecular flow of oil vapoa...

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332

Classified Abstracts 870--873

Materials and .Techniques used in Vacuum Technology 40.

42.

Gases and Vapours

40:14 Molecular flow of oil vapoars in piping systems. See Abstr. No. 776.

41.

Glass, Ceramics and Refractory Oxides

42 : 30 : 19 Comparison of two methods for measuring the thickness of thin coatings of oxide films on silicon. See Abstr. 'No. 849.

43.

Metals and Alloys

Plastics and Elastomers 43 : 23

41 : 19 : 33 Photoelectric emission of the complexes between caesium and polycycHc aromatic compounds. See Abstr. No. 797.

Britain).

41 : 16 Interaction of oxygen at low pressures with molybdenum. See Abstr. No. 785.

871. Cast acrylic sheet for vacuum forming. Anon.., Engineer, 215, 11 Jan. 1963, 109.

41 : 33 An alumina degradation leading to the breakdown of heater-cathode insulation in electron valves. See Abstr. No. 860. 41 : 33 : 30 On the effective magnetization and uniaxial anisotropy of thin permalloy films. See Abstr No. 856. 41 : 30 Method for vacuum deposition of refractory metal films. See Abstr. No. 834.

870. An elastometer seal for glass-vacuum desiccators. P. R. Walt, Chem & Industr., (14), 6 April 1963, 567-568.

41 : 3 0 How properties of evaporated Cu films vary with deposition conditions. See Abstr. No. 833. 41 : 30 : 33 Magnetic anisotropy in evaporated thin films containing aluminium. See Abstr. No. 839. 41 : 56 : 30 Thin film production performed continuously. See Abstr. No. 841.

(Great Britain).

43 : 16 Radiation chemistry of isotatic and atactic polypropylene. I. Gas evolution and gel studies. See Abstr. No. 779. 43 " 22 : 36 Mass spectrometer investigation of gas emission from plastic. See Abstr. No. 868. 43 : 23 Epoxy vacuum seal for introduction of leads into cryogenic equip, ment. See Abstr. No. 818. 45.

41 : 30 High vacuum deposition of cesium. See Abstr. No. 838.

(Great

Soldering, Welding, Brazing, Solders

45 872. Welding and brazing of tantalum and columbium. (U.S.A.). M. J. Albom, MetalProg., 33 (4), April 1963, 82-85. 45 873. Electron beam welds moly foil. (U.S.A.). M. M. Schwartz, Iron Age, 191 (13), 28 March 1963, 84-85.

47.

Outgassing Data, Vapour Pressure Data,

G e t t e r i n g D a t a , R e s i d u a l G a s e s in V a c u u m S y s t e m s , Residual Gas analysis

41 : 33 : 30 Domain pattern in electrodeposited nickel-iron thin films. See Abstr. No. 861.

47:17 The vapour pressures and bond energies of some antimony halides. See Abstr. N o . 787.

41 : 52 : 33 Thermal rearrangement of a perfectly ordered tungsten surface. See Abstr. NO. 875.

47 : 33 : 22 Negative ions and their importance for the analysis of residual gas. See Abstr. No. 859.