Magnetic powder of Sr-ferrite was prepared by conventional and sol-gel auto-combustion methods. In conventional method, strontium carbonate and ferric oxide powders were mixed together and then mixture was calcined. In sol-gel auto-combustion method, a solution containing strontium nitrate, ferric nitrate and citric acid was heated until the combustion took place automatically; then, as-burnt p...

in a strapdown magnetic compass, heading angle is estimated using the earth's magnetic field measured by three-axis magnetometers (tam). however, due to several inevitable errors in the magnetic system, such as sensitivity errors, non-orthogonal and misalignment errors, hard iron and soft iron errors, measurement noises and local magnetic fields, there are large error between the magnetometers'...

Supersaturated Fe-Pd solid solutions were prepared by mechanical alloying. X-ray diffractometry showed that the as-milled alloys were bcc from 0–26 at. % Pd. Saturation magnetization measurements and Mössbauer spectrometry measurements were performed on these powders. Consistent interpretations of both sets of measurements were possible if the magnetic moment at the Pd atom was 0.35mB and const...

Nanocomposites containing soft and hard magnetic phases have attracted immense attention for energy-related and biomedical applications. With exchange coupling between nanoscale grains in the composites, magnetization of the soft magnetic phase can rotate coherently with that of the hard magnetic phase. In particular, good control of the soft and hard phases at the nanoscale in the composites i...

Egg white powders typically undergo thermal treatment at 60 °C for 10–14 days to control Salmonella. Increasing water activity (aw) of egg and temperature can sharply reduce processing time, but its effect on product quality is unclear. This study aims determine the impacts aw dry-heating time powders’ color bulk properties. were conditioned three different (0.30, 0.45, 0.60) in equilibration c...