抄録
Ba7Zr(PO4)6, BaZr(PO4)2 and BaZr4(PO4)6 were prepared by heating a mixture of ammonium dihydrogen orthophosphate, zirconium oxide, and barium carbonate at 800~1500°C for 2~10 h. These compounds with small average particle sizes of 0.93~3.3 μm are thermally stable up to 1200°C. The thermal expansion of Ba7Zr(PO4)6, BaZr(PO4)2 and BaZr4(PO4)6 were -0.15~1.5, -0.25~0.7 and -0.05~0.2 % up to 1150°C, respectively.
