【摘要】 本文研究了以TiO₂和Ba（OH）₂为原料,邻笨二酚为配位剂制备BaTiO₃超细粉末的方法。探讨了反应物配比和温度对生成中间体Ba[Ti（C₆H₄O₂）₃]·3H₂O的影响。通过DTA-TG分析、X射线衍射分析讨论了Ba[Ti（C₆H₄O₂）₃]·3H₂O的热分解过程,获得800℃为最佳焙烧温度。BaTiO₃粉末的纯度为99.96%,Ba/Ti=1,粒径小于0.μm。BaTiO₃烧结体的最大相对密度为96.8%,其烧成温度为1250℃。更多还原

【Abstract】 The ultrafine BaTiO₃ powders have been prepared using TiO₂and Ba（OH）₂ as reactants andcatechol as coordination agent. The effect of reactant prescription and temperature upon interme-diate Ba[Ti（C₆H₄O₂）₃]· 3H₂O has also been discussed. The thermal decomposition ofBa[Ti（C₆H₄O₂）₃]· 3H₂O is studied by DTA-TG and X-ray. The best baking temperature is 800℃.The purity of BaTiO₃is 99.96%, Ba/ Ti=1, panicle radius<0.2μm. The max relative density ofsintering body BaTiO₃is 96.8%, and the sintering temperature is 1250℃.更多还原