An Investigation of Porous Structure of TiNi-Based SHS-Materials Produced at Different Initial Synthesis Temperatures


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An investigation of structural characteristics and behavior of TiNi-based pore-permeable materials manufactured by the methods of selfpropagating high-temperature synthesis (SHS) at the initial synthesis temperatures T = 400 and 600°С is performed. It is shown that depending on the temperature regime, the resulting structure and properties of the material can differ. It is found out that the SHS-material produced at the initial synthesis temperature T = 400°С possesses the largest number of micropores in the pore wall surface structure due to a high phase inhomogeneity of the alloy. The regime of structure optimization of the resulting materials is described and the main stages of formation of the pore wall microporous surfaces are revealed. It is demonstrated that after optimization of the surface structure of a TiNi-based fine-pore alloy by its chemical etching, the fraction of micropores measuring in size less than 50 nm increased from 59 to 68%, while the number of pores larger than 1 μm increased twofold from 11 to 22%. In addition, peculiar features of interaction between certain cell cultures with the surface of the SHS-material manufactured at different initial synthesis temperatures are revealed. It is found out that the dynamics of the cell material integration depends on the pore wall surface morphology and dimensions of macropores.

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V. Khodorenko

Research Institute of Shape Memory Materials and Alloys of V. D. Kuznetsov Siberian Physical-Technical Institute at Tomsk State University

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Email: hodor_val@mail.ru
俄罗斯联邦, Tomsk

S. Anikeev

Research Institute of Shape Memory Materials and Alloys of V. D. Kuznetsov Siberian Physical-Technical Institute at Tomsk State University

Email: hodor_val@mail.ru
俄罗斯联邦, Tomsk

O. Kokorev

Research Institute of Shape Memory Materials and Alloys of V. D. Kuznetsov Siberian Physical-Technical Institute at Tomsk State University

Email: hodor_val@mail.ru
俄罗斯联邦, Tomsk

Yu. Yasenchuk

Research Institute of Shape Memory Materials and Alloys of V. D. Kuznetsov Siberian Physical-Technical Institute at Tomsk State University

Email: hodor_val@mail.ru
俄罗斯联邦, Tomsk

V. Gunther

Research Institute of Shape Memory Materials and Alloys of V. D. Kuznetsov Siberian Physical-Technical Institute at Tomsk State University

Email: hodor_val@mail.ru
俄罗斯联邦, Tomsk

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