Anomalous large grains in alloyed aluminum thin films I. Secondary grain growth in aluminum-copper films

Secondary grain growth in vapor-deposited Al-Cu thin films has been investigated as a function of temperature, Cu concentration and distribution. Second phase Al2Cu particles were found to have a considerable effect in retarding secondary growth. Nuclei for secondary growth formed, presumably by rearrangement of misfit dislocations, only when Cu was introduced as a layer sandwiched between two equal Al layers. © 1972.