Investigation of structure formation in thin films by means of optical pyrometry

Autor:	P. Yu Gulyaev, Irina V. Milyukova, A. V. Dolmatov
Rok vydání:	2019
Předmět:	History Materials science Structure formation law business.industry Optoelectronics Thin film business Computer Science Applications Education Pyrometer law.invention
Zdroj:	Journal of Physics: Conference Series. 1281:012010
ISSN:	1742-6596 1742-6588
DOI:	10.1088/1742-6596/1281/1/012010
Popis:	The paper presents an approach to the identification of structural and phase changes in high-speed processes of spraying coatings and high-temperature synthesis of three-dimensional products from metal and ceramics. A method for evaluating the spectral degree of blackness of materials by means of optical pyrometry is described. An experimental complex was developed to study the degree of blackness of the surface of molybdenum, tantalum and tungsten foils in the process of stationary heating by electric current. The results of complex experimental studies are presented, showing that a jump in emissivity makes it possible to detect a change in the aggregate state of matter (liquid - solid), phase transitions, exo- and endothermic reactions in thin films, and also to determine characteristic temperatures with an error of 0.1–1.5%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::57153ae70622d17295974ba78da80ef5 https://doi.org/10.1088/1742-6596/1281/1/012010 Zobrazit plný text záznamu