Classified abstracts 311--328 for 4½ hours at 750-800°C with a restdual pressure below 1 torr. i Parucker, A B M Boletin, Assoc Brasil Metals, Sao Paulo, 20
(85), Nov 1964, 733-757, (in Portuguese).
39. Miscellaneous applications
41 : 47 321. Creep in Vacuum of MgO single crystals and the electric field effect. (USA) W S Rothwell and A S Neiman, J Appl Phys, 36 (7), 1965, 2309.
39 : 30
42. Glass, ceramics and refractory oxides
Solid surfaces in vacuum. See abstract number 275. 39 311. A flexural fatigue machine for high temperature operation at resonance in vacuum. (USA) A resonance-type, reversed-bending, high-temperature fatigue machine for operation at constant bending amplitude in vacuum has been developed. M R Achter et al, Naval Research Lab, Washington, DC, NRL-6275.
42 : 30 Glass coating by vacuum deposition. See abstract number 273. 42 322. Vacuum-fight windows with wide hand transmission characteristics. (USA) A vacuum-ught barium fluoride window with transmission range from 1800 A to 14 t~ is described. T P Vogl et al, Rev Scient lnstrum, 36 (10), Oct 1965, 1439-1440. 42 323. Applications of glass, glass ceramics and sintered glass ceramics.
(Get-many)
IV. Materials and techniques used in vacuum technology
The possible apphcations of glass, glass ceramics, and sintered glass ceramics are discussed together with their raw materials, commercial processes and properties. W Sack, Chemie lngenieur Technik, 37 (11), Nov 1965, 1154-1165.
40. Gases and vapours 40
43. Plastics and elastomers
312. Shaping vapours into new materials. (USA) J J Obrzut, Iron Age, 196 (21), 18 Nov 1965, 71-78 40 313. Ion sputtered coatings provide tailored properties. (USA) J M Seeman, Mater De~ Engng, 62 (6), Nov 1965, 102-104 40 314. Effect of translational energy on ion-molecule reaction rates II.
( USA ) K R Ryan and J H Fotrell, J Chem Phys, 43 (9), 1 Nov 1965, 3009-
3014. 40:47 315. Diffusioual processes in Knudsen cells. (USA) The volume and surface diffusions in Knudsen cells have been analyzed and their erroneous effects on vapour pressure measurements have been discussed. It is found that the volume diffusion may be large in some cases. A useful equation has been dertved from the relationship of Motzfeld and of Winterbottom and Htrt, ,eading to a simple graphical method capable of showing measurably large contributmns of surface diffusion to effusion. N A Gocken, JPhys Chem, 69 (10), Oct 1965, 3538-3541. 40 316. Collision density of hot atoms. (USA) R M Felder and M D Ko~tin, J Chem Phys, 43 (9), 1 Nov 1965,
3082-3086. 40 317. Mass spectrometric investigation of the reactions of 0 atoms with H= and NHs. (USA) E J Wong and A E Potter, J Chem Phys, 43 (9), I Nov 1965, 3371-
3382. 40 318. Correlation between observed and predicted excited-state populations in the helium afterglow. (USA) C B Collins, J Chem Phys, 43 (9), 1 Nov 1965, 3415-3416.
41. Metals and alloys (including mercury) 41 : 11 : 21 Obtaining ultra-high vacuum by means of a heated hydrogen condensation pump. See abstract number 200. 41:22 Error in the indications of a compression pressure gauge caused by the mercury vapour jet. See abstract number 237. 41 : 49 : 37 Zinc anodizing and properties of the protective film. See abstract number 299. 41 319. Vacuum contactor for 300A, (Great Britain) A vacuum contactor rated at 300 A for use on ac currents up to 3 3 kV is announced by the Motor and Control Gear Division of Associated Electrical Industries Ltd. Anon, The Engineer, 12 Nov 1965, 801. 41 320. Adsorption and surface diffusion of copper on tungsten. (USA) A J Melmed, J Chem Phys, 43 (9), 1 Nov 1965, 3057-3062.
110
43 : 30 A revolving multiple electron gun for use in the deposition of thin polymer films. See abstract number 280.
4"/. Outgassing data, vapour pressure data, gettering data, residual gases in vacuum systems, residual gas analysis 47:16 Application of synthetic zeolites in the production of a clean vacuum. See abstract number 203. 47 : 37 Omegatron mass spectrometer for analysis of the composition of residual gases in high vacuum systems. See abstract number 301. 47:40 Diffusional processes in Knudsen cells. See abstract number 315. 47:41 Creep in vacuum of MgO single crystals and the electric field effect. See abstract number 321. 47 324. Vapour pressure apparatus for transparent liquids with critical temperatures less than 1000°C. (USA) W J Silva et al, Rev Scient Instrum, 36 (10), Oct 1965, 1505-1506 47 325. A simple reduced equation for the estimation of vapour pressures.
(USA) D Miller, JPhys Chem, 69 (9), Sept 1965, 3209-3212. 47 326. A method of gas dosage with the aid of a volumetric adsorption apparatus, (France) S Flandrois, Compt Rendu, 260 (5), 1965, 1405-1407. 4 7 . 37 327. Investigation of the thermal degassing of metals in the ultra-high vacuum by means of an omegatron partial pressure vacuum meter.
(Germany) R Jaeckel and G Muschenborn, Forschber Landes Nordrhem-
Westfalen (Germany), No 1452, 1965, 50pages.
48. Heating, refrigeration, ultrasonics, centrifuging 48:33 Advances in cryogenic engineering, vo110. See abstract number 289.
49. Miscellaneous materials and techniques 49 : 37 : 41 Zinc anodizing and properties of the protective film. See abstract number 299. 49 328. The behaviour of materials in corrosive environments. (USA) Exammahon of the corrosion behaviour of three metals is used to investigate the corrosion process in general. W C Herren, Industrial Research, Nov 1965, 76-83.