{'fraction_non_alphanumeric': 0.012560386473429951, 'fraction_numerical': 0.004830917874396135, 'mean_word_length': 4.820224719101123, 'pattern_counts': {'":': 0, '<': 0, '<?xml version=': 0, '>': 0, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
An analysis of composition of the layers formed under CVD of tantalum on stainless steel substrates

Interaction of the reagents and the substrate stainless steel was analyzed during the deposition of tantalum coatings by reduction of tantalum bromide with cadmium. It was found that at deposition temperatures above 1000 K, the iron and chromium contents in stainless steel will reduce tantalum pentabromide passing into the gas phase in the form of bromides. As a result, not only tantalum bromide is reduced on the substrate, but also iron bromide which in the initial stages of deposition leads to the formation of iron containing sublayer in the coating. An increase in the contact surface of stainless steel interacting with reagents leads to an increase in the content of iron bromide, in which case a coating is formed from a Ta + Fe2Ta mixture. In addition, chromium bromide is formed on the substrate, which is removed along with the rest of the reaction products. It causes chromium depletion in the surface layers of steel.