Abstract
Phase relations around the oxyapatite phase in the Nd 2O 3–SiO 2 system have been investigated by means of a slow cooling floating zone (SCFZ) method and solid-state reactions. The results on SCFZ proved that the oxyapatite phase melts congruently at the composition of Nd 2O 3:SiO 2=7:9, corresponding to Nd 9.33(SiO 4) 6O 2. The 2:3 phase (Nd 8(SiO 4) 6), which had been believed to have an apatite structure and to melt congruently, does not exist and consists of a mixture of Nd 9.33(SiO 4) 6O 2 and Nd 2Si 2O 7 phases. The solid-state reaction revealed that a solid solution region of the oxyapatite phase is extremely narrow or does not exist below 1650°C.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
