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球磨對ZrO2（Y2O3）超細(xì)粉末性能的影響
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TF123.72

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Effect of Ball-Milling on the Properties of Ultrafine ZrO_2(Y_2O_3) Powders
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    摘要:

    以共沉淀法制備煅燒態(tài)ＺｒＯ２（Ｙ２Ｏ３）超細(xì)粉末為研究對象，研究了球磨對其物理和燒結(jié)性能的影響，結(jié)果表明，球磨雖可以有效地減小粉末的團(tuán)聚尺寸，但對粉末一次顆粒尺寸的的影響不大，球磨可以顯著增加團(tuán)聚程度較嚴(yán)重的鍛燒態(tài)粉末的比表面積，但對團(tuán)聚程度較輕的粉末，其影響大：球磨還可顯著減小粉末的晶粒尺寸，這與粉末在球磨過程中發(fā)生了相變有關(guān)。此外，對團(tuán)聚較嚴(yán)重的粉末，球磨可改善其燒結(jié)性能，但對團(tuán)聚程度較輕的粉

    Abstract:

    he effect of ball-milling on the properties of ultrafine ZrO2 (Y2O3) powders prepared by coprecipitation under different conditions is investigated. It is shown by the expertimental results that the agglomerate size of as-calcinated powders can be effectively decreased by ball-milling but the primary particle size is hardly affected. The surface area of seriously agglomerated powders can be markedly increased by ball-milling but that of softly agglomerated powders is not evidently increased. The crystal size of as-calcinated powders becomes much finer after ball-milling because transformation of the powder from tetragonal structure to monoclinic structure occurs during ball-milling. It is also shown that ball-milling can be used to improve the sinterability of seriously agglomerated powders.

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葛榮德 劉志宏.球磨對ZrO2（Y2O3）超細(xì)粉末性能的影響[J].稀有金屬材料與工程,1995,(2):45~49.[Ge Rongde, Liu Zhihong, Chen Huiguang, Zhang Duomo, Zhao Tiancong. Effect of Ball-Milling on the Properties of Ultrafine ZrO_2(Y_2O_3) Powders[J]. Rare Metal Materials and Engineering,1995,(2):45~49.]
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