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从使用观点来说,晶粒度是铀的很重要的数据之一。特别是当我们考虑加工处理条件或杂质含量对晶粒度的影响时,如何精确测定晶粒的大小是个关键问题。对于在α相加工并经再结晶的铀,它的晶粒非常均匀,呈正规的多角形状;但是经过相变的铀,晶粒不但变粗大,而且形状和大小都非常不规则。因此,寻找一种能够简便而正确地测定经过处理后的铀的晶粒大小的方法是非常必要的。现在已知的测定晶粒度的方法有:(1)加尔德纳(Gardner)提出
From the point of view of use, grain size is one of the most important data for uranium. Especially when we consider the processing conditions or impurity content on grain size, how to accurately determine the size of the grain is a key issue. For α-phase recrystallized uranium, its grain is very uniform and has a regular polygonal shape; however, the phase-changed uranium not only becomes coarse but also irregular in shape and size. Therefore, it is necessary to find a method that can easily and correctly determine the grain size of the treated uranium. Now known methods for the determination of grain size are: (1) Gardner proposed