作者:理查德·g·史密斯
出版者:
国际标准图书编号:1420818635
类别:
页面:
观点:324
切罗基人
晶体的机械孪生
Wooster认为石英中的机械孪晶是一种新的现象，在其他领域没有发现晶体(方解石，金属)，他为此提出了一个不太精确的名字——压晶(对力的反应产生的生长)。
作者: M. V. Klassen-Neklyudova
出版者:施普林格科学与商业媒体
国际标准图书编号:9781468415391
类别:科学
页面:214
观点:872
本专著不限于狭义的机械孪晶(对机械应力的反应中的晶格重定向);它还涉及许多与机械孪生有关的效应。例如在高温下形成重新定向区域(马氏体转变)。再结晶双胞胎)。电场(铁电畴)。和磁场(磁域)。讨论了经典孪晶和残余应力非均匀分布(不合理孪晶)的机械重定向。弯折。等等)。狭义的机械孪生(规则的)。 symmetrical lattice reorientation in response to me chanical stress) was for many years a specialist topic for mineralogists. petrographers. and crystallographers. Mineralogists and crystallographers carried out the study of the basic geometrical relationships in twinning; the principal names here are MUgge, Niggli. Johnsen. Reusch. Baumhauer. Churchman. Wallerant. Evans. and FriedeL The laws of mechanical twinning are now widely used in mineral identification and in elucidating the conditions of formation of rocks from the minerals they contain. The distribution of the twin bands in rock forming minerals enables one to establish the later processes that have occurred in the rock. Mechanical twinning is discussed by geOlogiSts and petrologists in the analYSis of flow effects. The importance of mechanical twinning in the plastic deformation and rupture of crystalline solids was W stressed by Academician V.I. Vernadskii in 1897 and by Kirpicheva ina paper entitled WFatigue in Metals in 1914.