Permanent magnets are one of the supporting materials for components in electronic equipment. In particular, NdFeB magnets are usually used in low-speed generators. Another alternative that can be used is BaFe₁₂O₁₉. A study has been carried out using the sintering process to obtain the value of the magnetic energy of BaFe₁₂O₁₉. The magnetic energy data obtained were processed using Multiple Linear Regression Analysis to examine the relationship between the sintering process and magnetic energy in increasing the magnetic properties of BaFe₁₂O₁₉. The predictor variables are temperature, T (°C) and time, t (hours), and response variable is magnetic energy. The temperature levels are 750°C, 800°C and 850°C and the time levels are 8 hours, 10 hours and 12 hours. It was found that there was a very significant relationship between the sintering process and magnetic energy in increasing the magnetic properties of the permanent magnet BaFe₁₂O₁₉ (p-value < 0.01) and R² = 83.61%.  The resulting model can be used to predict the average value of magnetic energy if the sintering process is carried out at a certain temperature and time. If the temperature is 900°C and the time 10 hours, the predicted mean value of magnetic energy is 113.611 T.kA/m.

Keywords:

permanent magnet, sintering process, magnetic energy, multiple linear regression and significant.