| 释义 |
polycrystal|ˈpɒlɪkrɪstəl|
[f. poly- + crystal n. and a.]
A polycrystalline body. Also attrib., = next.
1925Physical Rev. XXV. 248 The crystal was then hammered and swaged to change it into polycrystal copper. 1932Proc. R. Soc. A. CXXXVIII. 358 The complete change [in density] from single crystal to polycrystal..is..of the order of 1 in 3000 for, e.g., iron, nickel and aluminium. 1966C. R. Tottle Sci. Engin. Materials iv. 93 More than one nucleus inevitably gives rise to a polycrystal, where several points of growth lead to crystallites of different crystallographic orientation. Ibid. vi. 136 A polycrystal of iron is not always magnetized. |