Dynamics of twin boundaries in martensites.
Dynamics of twin boundaries in martensites.
复制标题
马氏体孪晶界动力学。
DOI：
10.1103/physrevlett.59.1251
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发表时间：
1987
影响因子：
8.6
通讯作者：
Krumhansl
中科院分区：
文献类型：
--
作者：
Barsch;Horovitz;Krumhansl
本文研究了从四方晶系到正交晶系位移跃迁的母相中形成相干孪晶阵列的理论。我们发现，这种结构可以稳定，而不使用位错的孪晶界之间的长程相互作用，这是通过介导的母相。孪晶界晶格的动力学由具有令人惊讶的低频率和限制-（波矢量）/sup 1/2/色散的基本激发组成。
The theory of forming a coherent twinning array in a parent phase is studied for a tetragonal to orthorhombic displacive transition. We find that this structure can be stabilized without the use of dislocations by a long-range interaction between the twin boundaries which is mediated via the parent phase. The dynamics of the twin boundary lattice consists of elementary excitations with surprisingly low frequency and a limiting -- (wave vector)/sup 1/2/ dispersion.