The absorption of a 1064.5 nm Nd:YAG laser line and the consequent heating up to melting of nano-crystalline CeO₂ has been studied in compressed air. The behaviour of crystallites ranging from 3.2 nm to 11 nm has been investigated and compared with micro-crystalline CeO₂.

A transparent / opaque transition occurs in CeO₂ at lower heating laser power density in smaller crystallite sizes. Also the melting behaviour is strongly dependent on the crystallite size. If one manages to directly melt nano-crystals by optimising the heating conditions under a suited oxygen overpressure, the resulting melt has been observed to solidify at the highest temperature so far reported for CeO₂ (3012 K), about 250 K higher than the temperature most commonly registered under oxidising conditions (2750 K). This is attributable to the large specific surface of nano-crystals, resulting, under a high oxygen potential, in their higher stability with respect to oxygen losses.

在压缩空气中研究了1064.5 nm Nd：YAG激光线的吸收以及随之而来的加热直至纳米晶体CeO ₂熔化的现象。已经研究了范围从3.2 nm到11 nm的微晶的行为，并将其与微晶CeO _{2进行了比较}。

CeO ₂在较小的微晶尺寸下以较低的加热激光功率密度发生透明/不透明过渡。而且，熔融行为强烈地取决于微晶尺寸。如果人们设法通过在合适的氧气超压下优化加热条件来直接熔化纳米晶体，则可以观察到所形成的熔体在迄今为止报道的CeO ₂（3012 K）的最高温度下凝固，比该温度高约250K。最常在氧化条件下（2750 K）注册。这归因于纳米晶体的大的比表面积，在高氧势下导致其相对于氧损失的更高稳定性。