Structural characterization of mineral with rutile inclusions (TiO2) and manganocolumbite (MnNb2O6) by means of X-ray

2nd International Meeting for Researchers in Materials and Plasma Technology

物理学;材料科学

Arcila, J.F.^1 ; Hincapié, A.F.^1

Departamento de Física, Universidad Nacional de Colombia, Bogotá, Colombia^1

关键词: Crystallographic phasis;    High temperature;    Network parameters;    Orthorhombic structures;    Powder samples;    Special alloys;    Structural characterization;    Tetragonal structure;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/466/1/012024/pdf
DOI  :  10.1088/1742-6596/466/1/012024

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

A sample of mineral obtained in the department of Vichada was characterized by the technique of X-ray diffraction in powder samples, in order to determine the crystallographic phases present. After analyzing diffraction patterns, as a result, the mineral had inclusions of Rutile (86.3%) and Manganocolumbita (13.7%). Next, a simulation of the crystal structure of these minerals from the data entered in the databases was carried on. Later, the Rietveld method was used, from this refinement, the new diffraction pattern and the new network parameters were obtained. For the Rutile it was obtained a tetragonal structure, and for the Manganocolumbita an orthorhombic structure was obtained. The characterization is justified among other aspects due to the important applications of these materials in industry and technology, such as Rutile is used in welding rod coatings, in Industries cardboard paper and ink impression among many other uses, the Manganocolumbita is used in special alloys resistant to high temperatures, it also is directly related to the tantalite in coltan formation.