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《Journal of The Chinese Ceramic Society》 1988-03
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INFLUENCE OF PROCESSING CONDITIONS ON THE STATE OF AGGLOMERATION OF ULTRAFINE ZrO_2(Y_2O_3)-Al_2O_3 POWDER

Xu Zhenxiang Zhu Xuanhui Fang Zhengfang(Tianjin University)  
Using the agglomerate density f, which is derived from the tap density, and modified agglomeration factor AF*(50), effects of processing conditions on the state of agglomeration and relationship between the state of agglomeration and sintering behavior are discussed in the paper. The properties of prepared powders are also evaluated from the microstructure of sintered samples. Experimental results show that f and AF*(50) can reflect the state of agglomeration directly.Ultrafine ZrO_2(Y_2O_3)-Al_2O_3 powder with homogeneous dispersion,low agglomerate density and agglomeration factor can be obtained by coating-coprecipitation from a mixed salt solution of zirconium and yttrium containing ultrafine α-Al_2O_3 dispersion.
【Fund】: 中国科学院科学基金
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