Phase Transformation after Heat Treatment of Cr-Ni Stainless Steel Powder for 3D Printing.

Today, Ni-Cr steel is used for advanced applications in the high-temperature and electrical industries, medical equipment, food industry, agriculture and is applied in food and beverage packaging and kitchenware, automotive or mesh. A study of input steel powder from various stages of the recycling process intended for 3D printing was conducted. In addition to the precise evaluation of the morphology, particle size and composition of the powders used for laser 3D printing, special testing and evaluation of the heat-treated powders were carried out.

Sulfur doped LiAlTi(PO) solid electrolytes with enhanced ionic conductivity and a reduced activation energy barrier.

Recently, tailored synthesis of solid electrolytes satisfy multiple challenges, i.e. high ionic conductivity and wide (electro)chemical stability window is of great interest.

Freestanding graphene/MnO cathodes for Li-ion batteries.

Different polymorphs of MnO (α-, β-, and γ-) were produced by microwave hydrothermal synthesis, and graphene oxide (GO) nanosheets were prepared by oxidation of graphite using a modified Hummers' method. Freestanding graphene/MnO cathodes were manufactured through a vacuum filtration process. The structure of the graphene/MnO nanocomposites was characterized using X-ray diffraction (XRD) and Raman spectroscopy.