A simple hot-pressing system is described which enables small volumes of polycrystalline yttrium iron garnet to be routinely produced. The products have high density, very low second phase content and a controlled grain size. Their magnetic properties compare very favourably with similar polycrystalline material produced by conventional sintering. Sample porosity may be varied in a controlled manner by simple changes in pressing conditions.
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Naziripour, G.A., Tooke, A.O., Standley, K.J. et al. Hot-pressed polycrystalline yttrium iron garnet. J Mater Sci 20, 375–380 (1985). https://doi.org/10.1007/BF00555931
- Grain Size
- Magnetic Property