This work aims to characterize clay soil taken from Loudima, one of the localities in the department of Bouenza in Congo Brazzaville. X-ray diffraction, infrared spectroscopy, MEB, X-ray chemical analysis and mechanical tests were performed. The results obtained show that the Loud soil sample is a mixture of Kaolinite (41.33%), quartz (16.03%) and iron oxide (2.93%). By chemical analysis, we noted that the SiO₂/Al₂O₃ ratio = 2.16, which indicates that this soil c...

Inorganic Chemistry  Inorganic Nonmetallic Materials  Fundamentals of Material Science 

The magnetic, electrical and magnetotransport properties of spinel-type Mg(Fe_0.8Ga_0.2)₂O_{4 δ} ceramic ferrites have been investigated. The results of the investigations temperature and field dependences of magnetization and resistivity are presented and analyzed. The data of neutron scattering were found to be in good agreement with the Neel model of ferrimagnetism. This compound is magnetomonophase ferrimagnetic in the wide range of temperatures,...

Inorganic Chemistry  Inorganic Nonmetallic Materials