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Interface controlled amorphization of crystalline Ni/Ti multilayers

Conference ·
OSTI ID:10135303
Solid-State Amorphization (SSA) of crystalline interfaces is observed in the Ni/Ti multilayer system. The amorphization reaction nucleates at location(s) of crystallographic disorder, i.e. the multilayer interfaces. Microstructural analyses reveal the sputter-deposited growth structure to be epitaxial with semi-coherent interfaces. Strain energy originating from interface lattice distortions varies as a function of the multilayer repeat spacing. Therefore, the interfacial energy effects the onset conditions for SSA. Differential thermal analysis is used to measure the critical temperature T{sub c}, to the nucleation of the SSA, which is found to vary with the Ni/Ti multilayer pair spacing.
Research Organization:
Lawrence Livermore National Lab., CA (United States)
Sponsoring Organization:
USDOE, Washington, DC (United States)
DOE Contract Number:
W-7405-ENG-48
OSTI ID:
10135303
Report Number(s):
UCRL-JC--114168; CONF-931108--95; ON: DE94008685
Country of Publication:
United States
Language:
English