Моделирование и оптимизация функции качества технологических процессов формирования функциональных покрытий и пленок

The modeling of processes of formation of thin films in magnetron sputtering systems in the substrate potential field at different ratios of relations between the sprayed material and the substrate for various types of structures of the substrate is considered. Growth models of thin films point emitters integration method with the use of Monte-Carlo algorithms with accounting of the annealing are used. The comparison of results of computer simulation and experiment is executed; the inverse problem to optimization process using the quality function that takes into account the uniformity of the synthesized thin films, the flow of materials and the geometry of the spray is solved.Рассмотрено моделирование процессов формирования тонких пленок в установках магнетронного распыления. Моделирование основано на вероятностном подходе и интеграции точечных испарителей. При моделировании учитывались относительное распределение толщины тонких пленок и эффективность массопереноса частиц. Выполнено сравнение результатов компьютерного моделирования и эксперимента; решена обратная задача оптимизации процесса с использованием введенной функции качества, учитывающей равномерность синтезируемых тонких пленок, расход материалов и геометрию области распыления

Investigation of properties and sowing qualities of forest seeds of european larch

The paper dwells upon size-quality characteristics of cones and sowing qualities of European larch seeds harvested from different plantations (forest cultures and seed plantation), their age being different. As a result of the investigation it has been identified that qualitative and quantitative characteristics of European larch forest seeds harvested from forest and seed plantations show no considerable differences. A significant difference has been found for sowingqualities of seeds. It has been stated that with increasing age the seed germination increases from 0–20% (biological age of 8 years) to 34.5–35.6% (biological age of 10 years). The paper gives some recommendations on European larch cones harvesting taking into account its biological features

The simulation and the optimization of the quality function of the process of the nanoscale film’s growth

The modeling of processes of formation of thin films in magnetron sputtering systems in the substrate potential field at different ratios of relations between the sprayed material and the substrate for various types of structures of the substrate is considered. Growth models of thin films point emitters integration method with the use of Monte-Carlo algorithms with accounting of the annealing are used. The comparison of results of computer simulation and experiment is executed; the inverse problem to optimization process using the quality function that takes into account the uniformity of the synthesized thin films, the flow of materials and the geometry of the spray is solved