• 作者： Chou, Kan-Sen; Liu, S.K.; Lin, C.H.
• 中文摘要： 本文主要是探討摻雜9.1mol%氧化鑭的氧化釔粉末,以氫氧化物或氫氧碳酸化物方式共沈澱程序的特性,以及共沈澱產物的性質。吾人之結果顯示,當使用尿素而非氫氧化氨作為共沈澱劑時,可以得到均勻的共沈澱產物,它具有球形的形態,均勻的組成(Ln(OH)/sub x/(CO/sub 3/)/sub y/.bcdot.zH/sub 2/O; x+2y=3)以及均勻的粒徑分布。這些均勻球形粒子在煆燒後的燒結行為也將在文中報導及討論。
• 英文摘要： Coprecipitation of 9.1mol% La/sub 2/O/sub 3/ in Y/sub 2/O/sbu 3/ as either bydroxide or hydroxycarbonate was reported in this paper. The characteristics of the coprecipitation process, as well as the properties of coprecipitated colloids were examined. Our results suggested that the coprecipitation process be more uniform when we used urea instead of ammonium hydroxide as the precipitant. Spherical hydroxycarbonate (as Ln(OH)/sub x/(CO/sub 3/)/sub y/-zH/sub 2/O with x+2y=3) precipitates with uniform composition and particle size could be obtained in the former case. Preliminary results on the sintering behavior of these colloids were also included.
• 中文關鍵字： 共沈澱; 燒結; 摻雜; 氧化鑭; 氧化釔; 氫氧碳酸化物; 粒徑分布; 沈澱試劑
• 英文關鍵字： Coprecipitation; Sintering; Doping; Lanthana; Yttria; Hydroxycarbonate; Size Distribution; Precipitation Reagent