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Особенности кристаллизации покрытия при отжиге трехслойного ламината Ti-Ni-Ti на воздухе К. М. Дубовиков, Г. А. Байгонакова, А. А. Шишелова

By: Дубовиков, Кирилл МаксимовичContributor(s): Байгонакова, Гульшарат Аманболдыновна | Шишелова, Арина АндреевнаMaterial type: ArticleArticleContent type: Текст Media type: электронный Other title: Features of coating crystallization at annealing of three-layer Ti-Ni-Ti laminate in the air [Parallel title]Subject(s): никелид титана | пористые материалы | реакционный синтез | градиентное покрытие | экспериментальные исследованияGenre/Form: статьи в сборниках Online resources: Click here to access online In: Перспективы развития фундаментальных наук. Т. 1 : сборник научных трудов XVII Международной конференции студентов, аспирантов и молодых ученых, Россия, Томск, 21-24 апреля 2020 г Т. 1 : Физика. С. 73-75Abstract: The gradient coating synthesized on a TiNi substrate by magnetron sputtering a three-layer Ti-Ni-Ti laminate and annealing in air at 950 °C was studied by XRD, SEM, TEM, and AFM methods. The thickness of the sputtered layers was chosen equal to 0.5-1 ym to study the composition and structure of the crystalline phases of the gradient coating. This thickness was sufficient for SEM and TEM studies and admissible large for XRD studies of phase composition. SEM and TEM techniques were used to determine the depth and patterns of grains occurrence of titanium carbonitrides. TEM and XRD techniques revealed that reactive synthesis of the coating is followed by transformation of the external amorphous layer of deposited titanium into heterogeneous crystalline titanium oxides. Crystallization of the oxide phase causes an increase in the volume of the external layer and intergranular cracking of the surface. AFM method showed an island microrelief of the external titanium layer formed during synthesis.
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The gradient coating synthesized on a TiNi substrate by magnetron sputtering a three-layer Ti-Ni-Ti laminate and annealing in air at 950 °C was studied by XRD, SEM, TEM, and AFM methods. The thickness of the sputtered layers was chosen equal to 0.5-1 ym to study the composition and structure of the crystalline phases of the gradient coating. This thickness was sufficient for SEM and TEM studies and admissible large for XRD studies of phase composition. SEM and TEM techniques were used to determine the depth and patterns of grains occurrence of titanium carbonitrides. TEM and XRD techniques revealed that reactive synthesis of the coating is followed by transformation of the external amorphous layer of deposited titanium into heterogeneous crystalline titanium oxides. Crystallization of the oxide phase causes an increase in the volume of the external layer and intergranular cracking of the surface. AFM method showed an island microrelief of the external titanium layer formed during synthesis.

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