**2. Materials and Methods**

The magnetic powder was commercial melt-spun ribbon powder with a composition of Nd30.7Febal(Co3.98Ga0.48)B0.89 (wt.%), and the glass fiber was crushed through a 2000 mesh screen, with a composition of CaO·SiO2. Three different additions of mixed magnetic powder were prepared, and the additions were 2 wt.%, 5 wt.%, and 10 wt.%, respectively. The mixing powder was hot-pressed at temperatures of 550 ◦C under 130 MPa for 2 min. After that, the sample was heated to 850 ◦C and kept warm for 1 min with a deformation rate of approximately 60~70%. A simple hot-deformed magnet without the addition of glass fiber was also prepared. The resistivity was by a four-point probe resistivity. The microstructure was studied using scanning electron microscopy (SEM) JEOL JSM 7100F, and energy dispersion spectrum (EDS) was used for elemental analysis. X-ray diffraction (XRD) was used to examine the crystalline constituents and detected on PANalytical Empyrean Series 2. The orthogonal experiment in Table L9(34) was used to explore and optimize the magnet preparation experimental parameters. For the experimental parameters, the hot-pressing temperature was 550 ◦C, 575 ◦C, and 600 ◦C, and then the hot-deformed temperature was 850 ◦C, 870 ◦C, and 890 ◦C, respectively.
