Pure tin oxide (SnO₂) ceramics is well known for its bad sinterability, more precisely for the difficulty to densify without additives by conventional pressureless sintering. This is related to the fact that the sintering mechanisms in pure tin oxide ceramics are non-densifying (surface diffusion at low temperature and evaporation-condensation at high temperature). On the other hand, for the same reason, pure tin oxide ceramics is a very unusual model system that can be used to demonstrate the effects of microstructural changes on effective properties without the otherwise dominating effect of changes in porosity. In this paper we show that pure tin oxide ceramics uniaxially pressed at 50 MPa, pre-sintered at 500 °C and re-sintered at 1000, 1200 and 1400 °C exhibit relative Young’s modulus increases of 30, 70 and 120 % while the porosity remains essentially constant at a value of 51.6 ± 0.7 %.

纯氧化锡 (SnO ₂) 陶瓷以其较差的可烧结性而闻名，更准确地说，是因为传统无压烧结在没有添加剂的情况下难以致密。这与纯氧化锡陶瓷的烧结机制是非致密化（低温表面扩散和高温蒸发冷凝）有关。另一方面，出于同样的原因，纯氧化锡陶瓷是一种非常不寻常的模型系统，可用于证明微观结构变化对有效性能的影响，而不会受到孔隙率变化的影响。在本文中，我们表明纯氧化锡陶瓷在 50 MPa 下单轴压制，在 500 °C 下预烧结并在 1000、1200 和 1400 °C 下重新烧结，表现出相对杨氏模量增加了 30，