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330. Structural state and mechanical properties of polycrystalline Ni3Fe alloys
Classified abstracts 326-342 33 326. The method of local excitation and investigation of characteristic losses of energies of electrons. (USSR) The method of local excitation and investigation of characteristic losses of energies of electrons is studied both theoretically and experimentally. To perform electron-spectral method of analysis of microvolume with the aid of characteristic electron energy losses, an electrostatic device for analysis of electron energies was built in an electron microscope-microanalyzer. B N Vasichev et al, Izv AN SSSR Ser Fiz, 36 (9), 1972, 1906-1910 (in
Russian). 33 327. The influence of defects produced by an electron beam on the properties of transistors. (USSR) The influence of dislocations, produced by electron-beam heating, on parameters of silicon planar n - p - n transistors is investigated. The experimental results are discussed. G V Dndko et al, Electron Obrab Mater, 1, 1973, 28-30 (in Russian). 37. M E T A L L U R G Y , I N O R G A N I C CHEMISTRY, ANALYTICAL CHEMISTRY 37 328. Apparatus for producing sticks of solid deuterium. (UK) An apparatus for producing sticks of solid hydrogen and deuterium in high vacuum, for use as targets in laser plasma experiments, is described. The sticks are of square cross section (2 mm × 2 ram) and are up to 15 cm in length. (Germany) H Krause, J Phys E: Scient Instrum, 6 (11), 1973, 1132-1134 (in
Enolish). 37 329. Mossbauer spectroscopy of disordered and ordered iron-nitrogen solid solutions. (Germany) M6ssbauer spectroscopy has been used to study the distribution of nitrogen atoms in Fe-N solid solutions with high nitrogen content. It demonstrates the ordering of nitrogen in the austenite and martensite at low temperatures. The experimental technique is described. (France) J M GetCm and J Foct, Phys Star Sol (a), 17 (2), 1973, 395-406 (in
French). 37 330. Structural state and mechanical properties of polycrystalline NiaFe alloys. (Germany) The evolution of the degree of order at isothermal ordering of NiaFe was studied using the X-ray determination of the long-range order parameter and the mean domain size. The examined ingots of Ni3Fe alloy have been prepared by melting in an induction furnace in a hydrogen atmosphere at 10 tort, followed by casting into a copper mould under a pressure of 10 -2 torr. (France) Y Calvayrac and M Fayard, Phys Stat Sol (a), 17 (2), 1973, 407-421.
(in French). 37 331. Detection of oxygen in silicon single crystals by electron spin resonance. (Germany) It is shown that oxygen concentrations as low as 1 × 10 t* cm -3 in silicon single crystals can be measured using the method of electron spin resonance. The oxygen atoms in the silicon lattice are in a diamagnetic state. By diffusion of lithium, paramagnetic LiOcomplexes are formed and the LiO concentration in silicon can be measured quantitatively by the electron spin resonance technique. H Nenbrand, Phys Stat Sol (a), 17 (2), 1973, 459-470 (in German). 37 332. Specific heat measurements of trigonal and vitreous selenium between 3 and 300 K by a heat pulse method. (Germany) A heat pulse method applied to measurements of the specific heat of very small samples in a vacuum cryostat with liquid helium is described. Specific heat data of trigonal and vitreous selenium obtained with the aid of the described method are reported. R Kruger et al, Phys Star Sol (a), 17 (2), 1973, 471-478 (in German). 37 333. Electrothermal transport in tungsten. (USSR) Electrothermal transport of mass in single crystal tungsten is investigated on its heating to 2000 to 3300 K in a vacuum of 10 -a tort and in hydrogen at 1 atm. Experimental results are discussed. I V Zakurdaev and A D Tsyganov, Fiz Tverd Tela, 15 (6), 1973, 1657-1660 (in Russian). 146
37
334. The imwoved process of growth of crystals of A"B w compounds from the gas phase. (USSR) A method for the growth of large-size crystals by sublimation is described which allows free crystal growth without contact with container walls. A sealed-off ampoule evacuated to 1 to 5 × 10-s torr is used for growth of crystals. A A Davydov and A A Giebkin, Neorg Mater, 8 (10), 1972, 17301733 (in Russian). 37 335. Epitaxiai growth of In=Gat -x solid solutions from the gas phase. (USSR) Crystallization of InzGal _~P solid solutions at epitaxial growth on GaAs from the gas phase by the method of small distance of source and substrate and with utilization of HCI as transport-reagent is investigated. I I Shtogrin et al, Neorg Mater, 8 (10), 1972, 1755-1757 (in Russian). 37 336. Thermal dependence of dissociation and thermodynamic parameters of CUP2. (USSR) The thermal dependence of dissociation pressure of CuP2 is measured in the temperature interval of 690 to 900°C using the weight static method with a sensitivity of 1 x 10-1 tort. Thermodynamic parameters of CuP2 are determined. Ya A Ugay et ai, Neorg Mater, 8 (1), 1972, 40-43 (in Russian). 37 337. Interaction and vapour composition in the system As-l. (USSR) The total pressure of vapour in the system As-I is measured using a static method with a quartz diaphragm gauge in the temperature interval of 100 to 800°C. Iodine sublimated in a vacuum of 10 -4 tort was used in the experiments. The composition of the vapour in the system As-I is calculated. It is shown that at 200 to 300°C the Aslao)-Asts) condensate evaporates without changing its molecular composition. S M Gadzhiev et al, Neorg Mater, 8 (1), 1972, 62-66 (in Russian). 37 338. Investigation of evaporation and thermal stability of InI. (USSR) Using the methods of high-temperature spectroscopy and tensimetry, evaporation of InI is investigated in the temperature interval of 360 to 950°C. The vapour pressure was measured by a compensation static method using a quartz Bourdon manometer with a sensitivity better than 1 × 10-1 torr. It is shown that InI evaporates and melts congruently. The heats of melting and evaporation and the entropy of evaporation of InI are calculated. Ya Kit Grinberg et al, Neorg Mater, 8 (1), 1972, 67-69 (in Russian). 37 339. Electric and photoelectric properties of TIGaS2, TIGaSe2 arid TIInS2 single crystals. (USSR) Electric and photoelectric characteristics of TIGaS2, T1GaSe2 and TIInS2 single crystals axe investigated in a vacuum of 10 - s torr. The single crystals have been prepared by the Bridgman method. The electrodes to the single crystals were prepared by vacuum evaporation of In, A1, Cu and Au. I A Karpovich et al, Neorg Mater, 8 (1), 1972, 70-72 (in Russian). 37 340. On the stability of oxycarbides in the system ZrC-ZrO2. (USSR) The products of interaction of ZrC and ZrO2 at a temperature of 2320 K and a pressure of 10 -4 torr are investigated. Stability of oxycarbides in the system ZrC-ZrO2 is studied. V M Gropyanov et al, Neoro Mater, 8 (1), 1972, 88-91 (in Russian). 37 341. Thermal transformations of acidic sodium tripolyphosphate N a , H P a O I o . H 2 0 . (USSR) Dehydration of crystal hydrate Na,HPaOto.H20 is investigated in a vacuum of 10 -4 torr and in a flow of water vapour. It is found that crystal hydrate of sodium tripolyphoshate loses water in several stages, the number of which depends on the composition of gas phase. E A Prodan et al, Neorg Mater, 8 (1), 1972, 106-110 (in Russian). 37 342. Measurement of interphnse surface tension of sodium alloys with potassium. (USSR) Surface tension of solutions of sodium with potassium is measured. The vacuum experimental apparatus with one calibrated tube is described. R V Lebedev, Izv VUZ Fiz, 12, 1972, 155-158 (in Russian).
Russian). 33 327. The influence of defects produced by an electron beam on the properties of transistors. (USSR) The influence of dislocations, produced by electron-beam heating, on parameters of silicon planar n - p - n transistors is investigated. The experimental results are discussed. G V Dndko et al, Electron Obrab Mater, 1, 1973, 28-30 (in Russian). 37. M E T A L L U R G Y , I N O R G A N I C CHEMISTRY, ANALYTICAL CHEMISTRY 37 328. Apparatus for producing sticks of solid deuterium. (UK) An apparatus for producing sticks of solid hydrogen and deuterium in high vacuum, for use as targets in laser plasma experiments, is described. The sticks are of square cross section (2 mm × 2 ram) and are up to 15 cm in length. (Germany) H Krause, J Phys E: Scient Instrum, 6 (11), 1973, 1132-1134 (in
Enolish). 37 329. Mossbauer spectroscopy of disordered and ordered iron-nitrogen solid solutions. (Germany) M6ssbauer spectroscopy has been used to study the distribution of nitrogen atoms in Fe-N solid solutions with high nitrogen content. It demonstrates the ordering of nitrogen in the austenite and martensite at low temperatures. The experimental technique is described. (France) J M GetCm and J Foct, Phys Star Sol (a), 17 (2), 1973, 395-406 (in
French). 37 330. Structural state and mechanical properties of polycrystalline NiaFe alloys. (Germany) The evolution of the degree of order at isothermal ordering of NiaFe was studied using the X-ray determination of the long-range order parameter and the mean domain size. The examined ingots of Ni3Fe alloy have been prepared by melting in an induction furnace in a hydrogen atmosphere at 10 tort, followed by casting into a copper mould under a pressure of 10 -2 torr. (France) Y Calvayrac and M Fayard, Phys Stat Sol (a), 17 (2), 1973, 407-421.
(in French). 37 331. Detection of oxygen in silicon single crystals by electron spin resonance. (Germany) It is shown that oxygen concentrations as low as 1 × 10 t* cm -3 in silicon single crystals can be measured using the method of electron spin resonance. The oxygen atoms in the silicon lattice are in a diamagnetic state. By diffusion of lithium, paramagnetic LiOcomplexes are formed and the LiO concentration in silicon can be measured quantitatively by the electron spin resonance technique. H Nenbrand, Phys Stat Sol (a), 17 (2), 1973, 459-470 (in German). 37 332. Specific heat measurements of trigonal and vitreous selenium between 3 and 300 K by a heat pulse method. (Germany) A heat pulse method applied to measurements of the specific heat of very small samples in a vacuum cryostat with liquid helium is described. Specific heat data of trigonal and vitreous selenium obtained with the aid of the described method are reported. R Kruger et al, Phys Star Sol (a), 17 (2), 1973, 471-478 (in German). 37 333. Electrothermal transport in tungsten. (USSR) Electrothermal transport of mass in single crystal tungsten is investigated on its heating to 2000 to 3300 K in a vacuum of 10 -a tort and in hydrogen at 1 atm. Experimental results are discussed. I V Zakurdaev and A D Tsyganov, Fiz Tverd Tela, 15 (6), 1973, 1657-1660 (in Russian). 146
37
334. The imwoved process of growth of crystals of A"B w compounds from the gas phase. (USSR) A method for the growth of large-size crystals by sublimation is described which allows free crystal growth without contact with container walls. A sealed-off ampoule evacuated to 1 to 5 × 10-s torr is used for growth of crystals. A A Davydov and A A Giebkin, Neorg Mater, 8 (10), 1972, 17301733 (in Russian). 37 335. Epitaxiai growth of In=Gat -x solid solutions from the gas phase. (USSR) Crystallization of InzGal _~P solid solutions at epitaxial growth on GaAs from the gas phase by the method of small distance of source and substrate and with utilization of HCI as transport-reagent is investigated. I I Shtogrin et al, Neorg Mater, 8 (10), 1972, 1755-1757 (in Russian). 37 336. Thermal dependence of dissociation and thermodynamic parameters of CUP2. (USSR) The thermal dependence of dissociation pressure of CuP2 is measured in the temperature interval of 690 to 900°C using the weight static method with a sensitivity of 1 x 10-1 tort. Thermodynamic parameters of CuP2 are determined. Ya A Ugay et ai, Neorg Mater, 8 (1), 1972, 40-43 (in Russian). 37 337. Interaction and vapour composition in the system As-l. (USSR) The total pressure of vapour in the system As-I is measured using a static method with a quartz diaphragm gauge in the temperature interval of 100 to 800°C. Iodine sublimated in a vacuum of 10 -4 tort was used in the experiments. The composition of the vapour in the system As-I is calculated. It is shown that at 200 to 300°C the Aslao)-Asts) condensate evaporates without changing its molecular composition. S M Gadzhiev et al, Neorg Mater, 8 (1), 1972, 62-66 (in Russian). 37 338. Investigation of evaporation and thermal stability of InI. (USSR) Using the methods of high-temperature spectroscopy and tensimetry, evaporation of InI is investigated in the temperature interval of 360 to 950°C. The vapour pressure was measured by a compensation static method using a quartz Bourdon manometer with a sensitivity better than 1 × 10-1 torr. It is shown that InI evaporates and melts congruently. The heats of melting and evaporation and the entropy of evaporation of InI are calculated. Ya Kit Grinberg et al, Neorg Mater, 8 (1), 1972, 67-69 (in Russian). 37 339. Electric and photoelectric properties of TIGaS2, TIGaSe2 arid TIInS2 single crystals. (USSR) Electric and photoelectric characteristics of TIGaS2, T1GaSe2 and TIInS2 single crystals axe investigated in a vacuum of 10 - s torr. The single crystals have been prepared by the Bridgman method. The electrodes to the single crystals were prepared by vacuum evaporation of In, A1, Cu and Au. I A Karpovich et al, Neorg Mater, 8 (1), 1972, 70-72 (in Russian). 37 340. On the stability of oxycarbides in the system ZrC-ZrO2. (USSR) The products of interaction of ZrC and ZrO2 at a temperature of 2320 K and a pressure of 10 -4 torr are investigated. Stability of oxycarbides in the system ZrC-ZrO2 is studied. V M Gropyanov et al, Neoro Mater, 8 (1), 1972, 88-91 (in Russian). 37 341. Thermal transformations of acidic sodium tripolyphosphate N a , H P a O I o . H 2 0 . (USSR) Dehydration of crystal hydrate Na,HPaOto.H20 is investigated in a vacuum of 10 -4 torr and in a flow of water vapour. It is found that crystal hydrate of sodium tripolyphoshate loses water in several stages, the number of which depends on the composition of gas phase. E A Prodan et al, Neorg Mater, 8 (1), 1972, 106-110 (in Russian). 37 342. Measurement of interphnse surface tension of sodium alloys with potassium. (USSR) Surface tension of solutions of sodium with potassium is measured. The vacuum experimental apparatus with one calibrated tube is described. R V Lebedev, Izv VUZ Fiz, 12, 1972, 155-158 (in Russian).