ИССЛЕДОВАНИЯ ПОВЕРХНОСТИ ПЛАТИНЫ С ПОМОЩЬЮ СКАНИРУЮЩЕГО ТУННЕЛЬНОГО МИКРОСКОПА ПОСЛЕ РАСПЫЛЕНИЯ В АРГОНОВОЙ ПЛАЗМЕ

Р.В. Селюков, В.В. Наумов, И.И. Амиров

Ярославский филиал Учреждения Российской академии наук Физико-технологического института РАН

In this paper the results of the study of platinum surface topology after ion-plasma treatment are presented. These results are obtained using scanning tunneling micro-scope (STM). Treated surface contains pits with horizontal dimensions of 15 – 30 nm and with vertical dimensions at least of 2 – 3 nm. Formation of these pits is caused by higher sputtering rate in local areas on platinum film. The entire treated surface are covered by grains with horizontal dimensions about 5 nanometers.

МОДЕЛИРОВАНИЕ МЕТОДОМ МОЛЕКУЛЯРНОЙ ДИНАМИКИ НИЗКОЭНЕРГЕТИЧЕСКОГО РАСПЫЛЕНИЯ МЕДИ ИОНАМИ АРГОНА

А.Н. Куприянов, И.И.Амиров, О.С.Трушин

Ярославский Филиал Учреждения Российской академии наук Физико-технологического института РАН

Molecular dynamics simulations of the low energy sputtering of Cu surface by Ar ions were performed using developmental complex of modeling with a Lennard–Jones potential. In the MD simulations the sputter yield of Cu atoms was determined as a function of the energy of the incident Ar ions (in the interesting range 20–150 eV). The results of the MD simulations have been compared with the literature data and a good agreement has been found on the complete low energy range.

ИССЛЕДОВАНИЕ ТОПОГРАФИИ ПОВЕРХНОСТИ ОРГАНИЧЕСКИХ ПЛЕНОК МОДИФИЦИРОВАННЫХ ЛАЗЕРНЫМ ИЗЛУЧЕНИЕМ

А.М. Туриев

Санкт-Петербургский государственный университет, Санкт-Петербург, Россия

INVESTIGATION OF SURFACE TOPOGRAPHY OF ORGANIC FILMS, MODIFIED BY LASER RADIATION

A.M. Turiev

Saint-Petersburg State University, Saint-Petersburg, Russia

The morphology of thin films of perylene-tetracarboxylic-dianhydride (PTCDA), modified by pulsed laser radiation of different wavelengths, has been investigated by atomic force microscopy (AFM). It is shown that the effect of nanosecond laser pulses leads to an irreversible change in surface topography. If the wavelength of the incident radiation falls in the absorption region, then at relatively low laser pulse energies of 0.5 mJ/cm2, it changes the surface, which is observed as a leveling of the surface relief in the AFM pictures. When the laser pulse energy increases to 2.4 mJ/cm2, the ablation of the layer thickness of about 20 nm. from the surface takes place. Irradiation with a wavelength in the transparency region leads to heating of the film from the substrate side and modification of the film takes place from the substrate.

СВОЙСТВА НАНОКОМПОЗИТНЫХ ПОКРЫТИЙ НА ОСНОВЕ Zr, Ti, Si И N, ПОЛУЧЕННЫХ МЕТОДОМ ВАКУУМНО-ДУГОВОГО ОСАЖДЕНИЯ ИЗ СЕПАРИРОВАННОГО ИОННО-ПЛАЗМЕННОГО ПОТОКА

П.В. Турбин1, В.М. Береснев1,2, А.Д. Погребняк3, В.В. Грудницкий2, Л.В. Маликов1, У.А. Немченко2, Е.В. Фурсова1

1Научный физико-технологический центр МОНМС и НАН Украины,
2Харьковский национальный университет имени В.Н. Каразина,
3Сумской государственный университет

В работе путем распыления цельнолитого катода методом вакуумно-дугового осаждения с применением импульсного высокочастотного потен-циала смещения, подаваемого на подложку, в среде молекулярного азота формировались нанокомпозитные покрытия на основе Zr, Ti и Si.

КОМПЬЮТЕРНОЕ МОДЕЛИРОВАНИЕ ВЛИЯНИЯ МАГНИТНОГО ПОЛЯ НА ФИЗИЧЕСКИЕ ПРОЦЕССЫ В ФОТОЭЛЕКТРИЧЕСКИХ ПРЕОБРАЗОВАТЕЛЯХ

Н.Н. Чернышов1, Н.И. Слипченко1, А.Ю. Панченко1, Лю Чан1, Е.Л. Щербак1, Е.В. Фурсова2

1Харьковский национальный университет радиоэлектроники, Харьков
2Научный физико-технологический центр МОНМС и НАН Украины, Харьков

The 3D calculation of field components in a silicon plate with conducting cur-rent which is placed in a magnetic field has been made. This calculation method is the first stage of creating the numerical model of photoelectrical converters in a mag-netic field, which is necessary for optimizing constructions of photoelectrical con-verters for efficiency increasing.

КАРБИН-ТРЕТЬЯ АЛЛОТРОПНАЯ МОДИФИКАЦИЯ УГЛЕРОДА

Удовицкий В.Г., Кропотов А.Ю.

Научный физико-технологический центр МОНМС и НАН Украины, Харьков

CARBYNE – THIRD ALLOTROPIC FORM OF CARBON

Udovutskiy V.G., Kropotov A. Yu.

Since the discovery of fullerene, carbon-based nanostructures have become one of the hottest research topics in the science. Carbon allotropes based on sp3-hybridized car-bon (diamond) and sp2-hybridized carbon (graphite, graphene, fullerenes, nanotubes) have well-established properties, many of which are technologically relevant. But carbyne - the third allotropic form of carbon, based on the sp-hybridization of its atoms, despite the fact that it opened 50 years ago, still remains one of the most controversial allotropic forms of carbon. In this critical report the wide spectrum of the information, concerning synthesis, researches of properties and application of carbyne and carbyne-based nanostructures is presented. Necessity of consideration carbyne as cluster nanomaterial with special properties is proved.

ПРИГОТОВЛЕНИЕ И МЕХАНИЧЕСКИЕ СВОЙСТВА ПЛЁНОК GdSb

З.У.Джабуа, А.В. Гигинеишвили, Г.Н.Илуридзе., Т.А.Минашвили, И.Л. Купреишвили

Департамент физики Грузинского технического университета. г.Тбилиси

A technique for preparing GdSb crystalline thin films trought vacuum-thermal evaporation is developed on the different substrate: monocrystalline silicon, glass-ceramic and leucosaphire. The phase composition and crystallinity of the films were analyzed by x-ray and electron diffraction methods. It is shown thath substrate material does not have any significant effect on the phase composition and crystallinity of this films.
For the first time, the relative strength of prepared films was studied. It is demonstrated that mechanical strength of all the flims depends on the material of the substrate and increases in the monocrystalline silicon – glas-ceramic – leucosafhire sequence.

ИСПОЛЬЗОВАНИЕ ПОРИСТОГО КРЕМНИЯ ДЛЯ ОЦЕНКИ СПОСОБНОСТИ БИОЛОГИЧЕСКИХ И БИОЛОГИЧЕСКИ АКТИВНЫХ ВЕЩЕСТВ ИНДУЦИРОВАТЬ АКТИВНЫЕ ФОРМЫ КИСЛОРОДА

Пивоваренко Ю.В.1, Шевченко В.Б.2, Даценко А. И. 2, Макара В.А.1,2, Шаблыкин О.В.3, Осадчук Т.В.3, Ляхов А.М.3

1ННЦ «Физико-химическое материаловедение» Киевского национального университета им. Тараса Шевченко и НАН Украины
2Киевский национальный университет им. Тараса Шевченко
3Институт биоорганической химии и нефтехимии НАН Украины

APPLICATION OF POROUS SILICON FOR ESTIMATION OF BIOLOGICAL AND BIOLOGICALLY ACTIVE SUBSTANCE ABILITY TO INDUCE REACTIVE OXYGEN SPECIES

Pyvovarenko Yu.V.1, Shevchenko V.B.2, Dacenko O. I.2, Makara V.A.1,2 , Shablykin O.V.3, Osadchuk T.V.3, Ljahov A.M.3

1The STC “Physical and Chemical Material Science” of Kyiv Taras Shevchenko National University and NAS of Ukraine, Kyiv, Ukraine
2Kyiv Taras Shevchenko National University, Kyiv, Ukraine,
3Institut of Bioorganical Chemie and Petrolchemie NAS of Ukraine, Kyiv

It is shown that existence of the correlation of porous silicon (PS) photoluminescence (PL) intensity with its oxidation degree by reactive oxygen species allow to use PS for estimation of different substances ability to induce reactive oxygen species formation.
The chemical activity of oxygen in DNA solutions is estimated to be higher than that in RNA solutions. Benadryl and Izadrin water solutions initiate formation of the lipid peroxidation products which are reactive oxygen species.

ИЗМЕНЕНИЕ УДЕЛЬНОЙ ПОВЕРХНОСТИ ПРИ ПОЛУЧЕНИИ ОКСИДНЫХ НАНОРАЗМЕРНЫХ ПОРОШКОВ

С.В. Габелков1, Т.К. Григорова2, А.Г. Миронова2, Р.В. Тарасов2

1Государственный научно-технический центр по ядерной и радиационной безопасности
2Национальный научный центр «Харьковский физико-технический институт»

SPECIFIC SURFACE AREA CHANGE DURING OXIDE NANOSIZED POWDERS PRODUCTION

S.V. Gabelkov1, Т.К. Grigorova2, A.G. Mironova2, R.V. Tarasov2

1State scientific and technical centre for nuclear and radioactive safety
2National science centre “Kharkov Institute of Physics and Technology”

Specific surface areas of powders of amorphous zirconium and yttrium hydroxide, amorphous, tetragonal and cubic zirconia and magnesium-aluminate spinel were de-fined. Change of specific surface area of powder during zirconia production was in-vestigated.

ФИЗИЧЕСКИЕ ОСНОВЫ МЕТОДА ОПРЕДЕЛЕНИЯ
ОБЪЕМОВ СОВОКУПНОСТЕЙ ПОРОВЫХ КАНАЛОВ В ПОРОШКАХ И ПОРИСТЫХ ТЕЛАХ

С.В. Габелков
Государственный научно-технический центр по ядерной и радиационной безопасности

PHYSICAL FOUNDATIONS OF METHOD OF DETERMINATION OF VOLUMES OF PORE CHANNELS IN POWDERS AND POROUS BODIES

S.V.Gabelkov
State Scientific and Technical Center for Nuclear and Radiation Safety

Physical foundations of the method of determination of the relative volumes of each group of pore channels that are available in a porous body on removal of work liquid from them at its evaporation were developed. Advantages and disadvantages are given, experience using of this method is extended at creating of ceramic matrix for isolation of high active waste. This method has given an ability to investigate de-struction of agglomerates and aggregates of xerogels and powders, agglomeration of powders and evolution of each component of pore spaces of porous bodies.

НИЗКОТЕМПЕРАТУРНОЕ СПЕКАНИЕ ОКСИДА ЦИРКОНИЯ ИЗ АМОРФНЫХ ПОРОШКОВ

С.В. Габелков1, Р.В. Тарасов2, Н.С. Полтавцев2, А.П. Крышталь3, А.В. Пилипенко2, А.Г. Миронова2

1Государственный научно-технический центр по ядерной и радиационной безопасности,
2ННЦ «Харьковский физико-технический институт,
3Харьковский национальный университет им. В.Н. Каразина

LOW-TEMPERATURE SINTERING OF ZIRCONIA FROM AMORPHOUS POWDERS

S.V. Gabelkov1, R.V. Tarasov2, N.S. Poltavtsev2, A.P. Kryshtal3, A.V. Pilipenko2, A.G. Mironova2

1State scientific and technical centre for nuclear and radiation safety
2Kharkov Institute of Physics and Technology National Scientific Center
3V.N. Karazin Kharkov National University

Low-temperature sintering of tetragonal zirconia was realised at the expense of the fracture of all the agglomerates as a result of pressing of specimens from hydroxide powder, produced using a method of co-precipitation from an aqueous solution, and of the increased reactionary activity of amorphous hydroxide and oxide of zirconium. Heat treatment at temperature 1100 ºС within 1 hour allows to produce ceramic material with relative density 0.928, size of grains 120 -135 nm and pores 50 - 75 nm. Sintering was most intensively in interval temperatures 950 - 1150 ºС, and was less active – in interval 800 - 950 ºС.

МОДЕЛЬ СТРУКТУРЫ ПОРИСТОГО ТЕЛА, СПРЕССОВАННОГО ИЗ АГЛОМЕРИРОВАННЫХ ПОРОШКОВ

С.В. Габелков
Государственный научно-технический центр по ядерной и радиационной безопасности

Предложена модель структуры пористого тела, спрессованного из нанораз-мерных порошков, для случая разрушения агломератов. Пористое тело по мере повышения давления представляет собой: «каркас» из агломератов; «каркас» из агломератов, поровые каналы между которыми заполняются их фрагментами; совокупность агломератов, их фрагментов и агрегатов; «каркас» из агрегатов, поровые каналы между которыми заполнены их фрагментами; совокупность агрегатов, их фрагментов и «первичных частиц».

STRUCTURE MODEL OF POROUS BODY COMPACTED FROM AGGLOMERATEED POWDERS

S.V. Gabelkov
State scientific and technical centre for nuclear and radiation safety

The model of structure of the porous body compacted from nanosized powders, for a case of agglomerates destruction is offered. The porous body during increasing of pressure was: “frame” from agglomerates; “frame” from agglomerates, pore channels between which are filled with their fragments; combination from agglomerates, their fragments and aggregates; “frame” from aggregates, pore channels between which are filled by their fragments; combination of aggregates, their fragments and “pri-mary particles”.

КРИСТАЛЛИЗАЦИЯ НАНОПОРОШКА АМОРФНОГО ОКСИДА ЦИРКОНИЯ

С.В. Габелков

Государственный научно-технический центр по ядерной и радиационной безопасности

CRYSTALLIZATION OF AMORPHOUS ZIRCONIA NANOPOWDER

S.V. Gabelkov

State Scientific and Technical Center for Nuclear and Radiation Safety

The crystallization kinetics of nanoparticles of amorphous zirconia powder for temperatures both above and below the crystallization temperature were investigated. Character of crystal nucleation and mechanism of their growth were defined. The crystallization kinetics can be well described by Kolmogorov-Johnson-Mail-Avrami classical theory, that was summarized on case of limited system. Limitation of nanoparticles volume appears in increasing of crystallization time.

МОДЕЛИРОВАНИЕ ВЛИЯНИЯ ПАРАМЕТРОВ ЛАЗЕРНОГО ИЗЛУЧЕНИЯ НА ФОРМИРОВАНИЕ ОСАДКА ТУГОПЛАВКОГО МЕТАЛЛА ПРИ ПИРОЛИТИЧЕСКОМ ВОССТАНОВЛЕНИИ ВОДОРОДОМ

И.Г. Величко, А.В. Недоля, И.Н.Титов

Запорожский национальный университет

SIMULATION OF IMPACT OF LASER RADIATION ON THE FORMATION OF REFRACTORY METALS SEDIMENT BY PYROLYTIC REDUCTION
WITH HYDROGEN

I.G.Velichko, A.V. Nedolya, I.N. Titov
Zaporizhzhya National University

The mathematical model, that considers the effect of the laser radiation on the temperature distribution and shaping of sediment of refractory metal on dielectric substrate by pyrolysis LCVD. The model takes into account the parameters of laser radiation for obtaining surface structures with predetermined size and shape.

ЗМІНИ КРИСТАЛІЧНОЇ СТРУКТУРИ ПРИПОВЕРХНЕВИХ ШАРІВ ІМПЛАНТОВАНИХ ІОНАМИ Не+ МОНОКРИСТАЛІВ ҐҐҐ В ПРОЦЕСІ ПРИРОДНОГО СТАРІННЯ

І.П. Яремій, С.І. Яремій, В.Д. Федорів, В.В. Куровець

Прикарпатський національний університет імені Василя Стефаника

CRYSTAL STRUCTURE OF SURFACE LAYERS CHANGES IN GGG SINGLE CRYSTALS IMPLANTED BY НЕ+ IONS DURING NATURAL OLDING

Precarpathian National University named after Vasyl Stefanyk

І.P. Yaremiy, S.І. Yaremiy, V.D. Fedoriv, V.V. Кurovets

The crystalline structure changes, which happened for 4 years in surface layers of GGG single crystals implanted by Не+ ions, are studied on the basis of the results of X-ray structural analysis. It is set, that maximal deformation in surface layer for 38 month is increased, then it is decreased. The explanation of indicated changes of maximal deformation is proposed due to reconstruction and relaxation of radiation defects induced by ion irradiation.