RT journal article
T1 Influence of Additional Intermediate Thick Al Layers on the Reaction Propagation and Heat Flow of Al/Ni Reactive Multilayers
A1 Jaekel, K.
A1 Jiménez Ríos, Juan Jesús
A1 Riegler, S. S.
A1 Matthes, S.
A1 Glaser, M.
A1 Bergmann, J. P.
A1 Schaaf, P.
A1 Gallino, I.
A1 Morales Sánchez, Francisco Miguel
A1 Müller, J.
A1 Bartsch, H.
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
AB This study investigates the effects of sputtering and electron beam evaporation(e-beam) on the microstructure and reactive properties of Al/Ni reactive multilayers(RMLs). The intermixing zone, a critical factor influencing reaction kinetics, ischaracterized using high-resolution transmission electron microscopy and found tobe consistently 3 nm for both fabrication methods. Differential scanning calorimetryreveals that e-beam samples, with thicker Al layers, exhibit slightly higher total molarenthalpy and maintain high reaction temperatures despite reduced reaction velocitiesin comparison to sputtered samples. X-ray diffraction confirms the formation ofboth Al3Ni2 and AlNi phases in the e-beam samples. These findings indicate thatwhile thicker bilayer structures reduce reaction velocity, they keep thermal outputand mitigate the impact of intermixing zones, leading to similar total molar enthalpy.This analysis underscores the significance of deposition technique and bilayerthickness in optimizing the performance of Al/Ni RML, offering the possibility toestablish different phase formations in thicker RML. It advances the control over thereactive properties of RMLs in their applications, for example, reactive bonding.
PB Wiley-VCH GmbH
SN 1527-2648
YR 2024
FD 2024
LK http://hdl.handle.net/10498/35477
UL http://hdl.handle.net/10498/35477
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 13-nov-2026