Structure and Frictional Properties of Ultrahard AlMgB Thin Coatings.

This paper presents the results of studies on AlMgB-based ceramic coatings deposited on WC-Co hard alloy substrates using RF plasma sputtering. The aim of this work is to study the structure, phase composition, and mechanical properties of AlMgB-based coatings depending on the sputtering mode. According to the results of the microstructural study, the bias voltage applied to the substrate during the sputtering process significantly contributed to the formation of the coating morphology.

Influence of Dy and Ho on the Phase Composition of the Ti-Al System Obtained by 'Hydride Technology'.

The manuscript describes the phase composition, microstructure, some physical and mechanical properties of the Ti-Al system with addition of 2 at. % Dy (TAD) and Ho (TAH) obtained by "hydride technology". Phase diagrams for Ti-Al-Dy and Ti-Al-Ho at a temperature of 1150 °C and basic properties for ternary phases Dy₆Ti₄Al₄₃ and Ho₆Ti₄Al₄₃ were calculated.

Phase Composition, Structure and Properties of the Spark Plasma Sintered Ceramics Obtained from the AlMg-B-Si Powder Mixtures.

In this work, composite materials were obtained by spark plasma sintering of an AlMg-B-Si powder mixture. The structure, phase composition, and mechanical properties of the obtained composites were studied. It was found that various compounds based on B icosahedrons, such as AlB, BSi, and BSi, are formed during spark plasma sintering.

The Influence of Scandium on the Composition and Structure of the Ti-Al Alloy Obtained by "Hydride Technology".

In this study the influence of scandium on the structural and phase state of the Ti-Al alloy obtained by the method of "Hydride Technology" (HT). The Rietveld method has allowed for determining the content of basic phases of the 49at.%Ti-49at.

Non-Invasive Diagnosis of Malignancies Based on the Analysis of Markers in Exhaled Air.

Novel non-invasive methods for the diagnosis of malignancies should be effective for early diagnosis, reproducible, inexpensive, and independent from the human factor. Our aim was to establish the applicability of the non-invasive method, based on the analysis of air exhaled by patients who are at different stages of oropharyngeal, larynx and lung cancer. The diagnostic device includes semiconductor sensors capable of measuring the concentrations of gas components in exhaled air, with the high sensitivity of 1 ppm.