Rare Earth Oxyfluoride Sintered Body And Method For Producing Same
a rare earth oxyfluoride and compact technology, applied in rare earth metal oxides/hydroxides, rare earth metal halides, yittrium oxides/hydroxides, etc., can solve the problems of low strength of sintered rare earth oxyfluoride compact, and affecting the production efficiency of rare earth oxyfluorid
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example 1
[0062]Y2O3 powder and YF3 powder were mixed in a ratio of 49:51 by percentage to prepare a mixed powder. The mixed powder was put in a mold and formed into a green body by uniaxial pressing using a hydraulic press at a pressure of 65 MPa for 0.5 minutes. The resulting green body was fired in vacuo at 1400° C. for 4 hours to make a sintered compact.
example 2
[0063]Y2O3 powder and YF3 powder were mixed in a ratio of 51:49 by percentage to prepare a mixed powder. The mixed powder was mixed with water, a polycarboxylic acid dispersant, and an acrylic emulsion binder in a water, dispersant, and binder to mixed powder ratio of 20%, 1%, and 1%, respectively, relative to 10% of the mixed powder to prepare a slip. The slip was poured into a plaster mold for slip casting. The resulting green body was fired in vacuo at 1400° C. for 4 hours to obtain a sintered compact.
example 3
[0064]Y2O3 powder and YF3 powder were mixed in a ratio of 52:48 by percentage to prepare a mixed powder. The mixed powder was put in a graphite mold and hot pressed at a pressure of 20 MPa at 1300° C. for 1 hour to perform forming and firing simultaneously to make a sintered compact.
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