Abstract The present work introduces the concept of ‘shape strain’ to illustrate its beneficial effect to control/avoid any undesired phase transition via consolidation/densification of ceramics; low (4 mole%)-doped ZrO2 ceramics with various dopants have been used for investigation. With ionic radii size difference (of dopant ion and Zr4+) above 30%, CaO-doped zirconia ceramics showed the effect most prominently. The effect was also dependent on the grain boundary mobility of dopants. Controlling final phase evolutions in ceramics is difficult and this effect may serve as remedy if tried with different size fractions of starting powders.

中文翻译：

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块状陶瓷中的形状因子能否减轻不需要的相变？

摘要 目前的工作介绍了“形状应变”的概念，以说明其通过陶瓷的固结/致密化控制/避免任何不希望的相变的有益效果；具有各种掺杂剂的低（4 摩尔%）掺杂 ZrO2 陶瓷已用于研究。当离子半径大小差异（掺杂离子和Zr4+）大于30%时，CaO掺杂的氧化锆陶瓷表现出最显着的效果。该效果还取决于掺杂剂的晶界迁移率。控制陶瓷中的最终相演变很困难，如果尝试使用不同尺寸分数的起始粉末，这种效果可以作为补救措施。