Contents

Effect of energy fluxes on materials

D.V.Bykov, F.I.Grigoryev, A.P.Lysenko, N.I.Strogankova

Mechanism and kinetics of the structure formation and etching of photo- and electron-beam resist
thin films under irradiation with mean-energy ions...................................................................................................................... 5

Thin films of positive and negative electron-beam resists and positive photoresists were irradiated
with B
+ (100 keV) and P+ (150 keV) ions with fluences of 61012-1016 cm2. Effect of a chemical
structure of the resist on the efficiency of ion etching has been studied. On the base of IR-spectra
analysis, the mechanism of radiation-induced structure formation in positive photoresists is ascertained.

Keywords: photoresist, electron-beam resist, ion irradiation.

 

B.A.Lapshinov

Effect of the mode of laser removal of the surface thin films on the properties of optical glass..................................................... 9

Effect of duration of the pulses of laser irradiation (200 ms, 100 ns, 12 ns) on pollutant thin films
removal from the surface of optical glass K8 type as well as the changes of transmission coefficient
of this glass have been investigated.

Keywords: technological windows, laser radiation, pulse duration, thin film, transmission coefficient.

 

Plasmochemical methods of production and treatment of materials

V.I.Kalita, A.A.Radyuk, D.I.Komlev, A.Yu.Ivannikov, Yu.V.Blagoveshchensky,
K.V.Grigorovich, T.V.Shibaeva

Plasma coatings from mechanically alloyed Co-C-Mo and Co-C powders................................................................................ 14

Phase composition and structure of the powders of Co-9,2% C and Co-1% Mo-9,2% C model alloys
after various treatments (mechanical alloying, heat treatment, and sintering) as well as plasma coatings
deposited from these powders have been investigated by X-ray diffraction analysis and metallography
methods. It is shown that non-equilibrium carbides Co
xCy and amorphous phase are formed in the process
of the powder mechanical alloying and coating plasma spraying. High (up to 8.3 GPa) microhardness
of the plasma coating is associated with the formation of carbides and amorphous phase. Carbon losses
in the powder and coatings are estimated at all stages of plasma spraying process.

Keywords: plasma nanostructured coatings, mechanical alloying of powders, model Co-C-Mo and
Co-C alloys.

 

Kh.Kh.Kadyrov, V.N.Arustamov, Kh.B.Ashurov, I.Kh. Khudaykulov

Features of the behavior of vacuum-arc cathode spots on the surface with deposited alkali metal compounds.......................... 22

It is shown that deposition of alkali metal compounds on the cathode surface causes a change in
the conditions of formation and moving, and structure of the group contact spots under vacuum-arc
treatment, which leads to energy consumption reduction and surface roughness decrease.

Keywords: vacuum-arc processing, cathode spot, field emission, thermal-field emission, energy
consumption, surface roughness, alkali metals.

 

Functional coatings and surface treatment

L.P.Mileshko, A.S.Khlebinskaya

Thermodynamic functions for reactions of anodic oxidation of Al.............................................................................................. 27

It is shown that reactivity of aluminum in relation to the anions of electrolytes decreases in a row
NO
2NO3PO43CO32OHHPO42B(OH)4H2PO4SO42. As a result of anodic
reactions taking place on aluminum, solid AlPO
4 or P2O5 products are formed in addition to Al2O3
in phosphate electrolytes, and B
2O3 in borate ones.

Keywords: anodizing of aluminum, anodic oxidation, aluminum oxide, oxide film, thermodynamic analysis.

 

K.S.Senkevich, M.I.Knyazev, S.D.Shlyapin

An investigation of the surface phase composition and properties of TiNi alloy after high
temperature heat treatment.......................................................................................................................................................... 30

Effect of vacuum annealing at 1100C on phase composition and microhardness of the surface
layers of the TiNi based alloy have been investigated by RBS, X-ray diffraction and electron-probe
microanalysis methods. Surface segregation of Ti, Ti-enriched intermetallides formation, and
the surface layer microhardness increase are found to be occurred during the annealing.

Keywords: TiNi based alloy, diffusion bonding, high-temperature annealing, surface segregation,
intermetallic compounds, microhardness.

 

L.V.Zakharova, S.A.Karimova

Surface chemical treatment for the purpose of improvement of Ti-based alloys adhesion to paint films.................................... 33

Optimal compositions of the solution and paste for titanium alloys surface phosphating have been
ascertained. Developed methods of treatment do not increase the hydrogen content in the surface
layer of the alloys and provide a good adhesion of the paint films under exposure to salt spray, in
tropical climate, environment of industrial atmosphere in moderate climate, and in the coast climate
with moderately warm temperatures.

Keywords: titanium alloys, surface treatment, phosphating, paint coating, adhesion, interfacial angle,
hydrogen saturation.

 

Composite materials

G.N.Sokolov, I.V.Zorin, A.A.Artemiev, V.B.Litvinenko-Arkov, Yu.N.Dubtsov,
V.I.Lysak, V.O.Kharlamov, A.V.Samokhin, Yu.V.Tsvetkov

Structure formation and properties of the weld alloys with addition of refractory compound nanopartticles............................. 38

Effects of TiCN and WC nanoparticles addition on the structure and properties of weld metals on
the base of Fe and Ni
3Al have been investigated with the help of optical and scanning electron
microscopy, X-ray spectroscopic microanalysis, measurements of fatigue life and abrasive wear tests.

Keywords: nanoparticles, titanium carbonitride, tungsten monocarbide, weld metal, crystallization,
structure modification, deformation, wear resistance.

 

New methods of treatment and production of materials
with required properties

T.R.Chueva, V.V.Molokanov, V.T.Zabolotny, P.P.Umnov, N.V.Umnova,
E.E.Shalygina, A.N.Shalygin, A.M.Kharlamova

Production and compositions, structure, and properties of the thick amorphous ferromagnetic microwires........................ 48

Thick rapidly quenched microwires 50-200 mm in diameter without a glass coating were
produced by Ulitovsky-Taylor method from Co
71Fe4Si10B15 and Fe31Co34Ni10Si10B15 alloys
with high glass-forming ability. The strong (
sB=3000 P) amorphous microwires have a high
bend and torsion plasticity due to formation a surface small regular grid of the shear bands.
The rubber-like behavior (gum metal) of microwires is found to be taken place under elastic
tensile and torsional deformation. Two-stage crystallization of amorphous microwires is ascertained.
The slope of hysteresis loop and values of saturation field H
S and coercive force are risen with
increase of microwire diameter.

Keywords: amorphous microwire, crystallization, magnetic properties, Ulitovsky-Taylor method,
glass-forming ability, shear bands.

 

S.V.Stefanovsky

The problem of the choice of matrix for controlled storage of Cm fraction with the ability
of following extraction of accumulated Pu. I. Basic properties of the host phases...................................................................... 56

General characterization of curium isotopes occurring in spent nuclear fuel and curium fraction
of high level waste is given. Existing matrices potentially suitable for an interim storage or ultimate
disposal of curium including matrices containing rare earth analogs of curium are analyzed. Major
techniques for determination of radiation resistance and chemical durability of the matrices are
considered. It has been shown that for a long-term storage or ultimate disposal of curium fraction
the most appropriate matrices are the phases with the fluorite and fluorite-derived structures (pyrochlore,
zirconolite, murataite) as well as the perovskite, monazite and apatite type phases whereas the perovskite-
type phases including alkali earth-rare earth perovskites and glasses are the most suitable matrices for
interim storage following by extraction of accumulated plutonium.

Keywords: ceramics, chemical durability, curium, glass, matrix, plutonium, radiation resistance,
radioactive waste.

 

B.A.Kalin, S.A.Kokhtev, I.G.Bulychyov

An investigation of the corrosion resistance of Dy2O3TiO2 Dy2O3HfO2 pellets in a high-parameter water............................ 71

By means of metallography, X-ray microanalysis, gravimetry, and microhardness measurement
methods, the structure, phase composition, and corrosion resistance of the specimens of dysprosium
titanate and hafnate have been investigated after corrosion tests in water at the temperature 345C
and pressure 17 MPa with duration up to 500 h . The data obtained suggest on a high corrosion
resistance of titanate and hafnate of dysprosium in a water of high parameters.

Keywords: fuel cladding, VVER reactor, dissipative element, reactor control and protection system,
water, corrosion test, microhardness.

 

P.V.Kuznetsov, Yu.P.Mironov, T.V.Rakhmatulina, Yu.I.Tyurin, A.M.Lider,
V.N.Kudiyarov, A.V.Korznikov

Effect of a low-temperature annealing on interaction of hydrogen with sub-microcrystalline
Ni under electrolytic saturation................................................................................................................................................... 75

Effect of preliminary low-temperature annealing on hydrogen interaction with submicrocrystalline Ni
under electrolytic hydrogenation has been studied by means of scanning tunnel microscopy, X-ray
diffraction, and microhardness tests. Nickel hydride Ni
2H has been detected in X-ray diffraction spectra
of as-prepared samples that results in increase of their microhardness. In preliminary annealed samples,
an increase in the lattice parameter and a decrease in microhardness were observed that indicated the
formation of a solid solution of hydrogen in nickel.

Keywords: scanning tunneling microscopy, X-ray diffraction, submicrocrystalline structure,
electrolytic hydrogenation.

 

N.T.Shardakov, G.N.Shardakova

Kinetics of Cu and Ag deposition on Ti in ion melts.................................................................................................................... 83

Kinetics of Cu and Ag deposition from CuCl-NaCl and AgCl-CaCl2 salt melts on titanium substrate
has been investigated. Kinetic equations of the metal coating deposition as well as the values of
activation energy and preexponential factor were determined. It is ascertained that the energy of
activation of copper plating is 3611 kJ/mole, and that of silver plating 13.30.2 kJ/mole.

Keywords: copper plating, silver plating, coatings, substrate, salt melt, method of case hardening,
kinetics.