抄録
The changes in structure of two boron phosphate samples upon grinding was studied by XRD and FT-IR. Grinding brought about a decrease in XRD intensity of cristobalite-form of boron phosphate, but the extent was small, indicating the structure was stable to grinding. From one boron phosphate sample, a small amount of boria was formed by grinding, while from the other sample no boria was detected. The results indicate that destruction of the structure of boron phosphate is not necessarily accompanied by the formation of boria.
