On spinodal decomposition in Cu–34 at.% Ta thin films – An atom probe tomography and transmission electron microscopy study

Müller, Claudia Manuela; Sologubenko, Alla S.; Gerstl, Stephan S.A.; Spolenak, Ralph

doi:10.1016/j.actamat.2015.01.073

Cited by 42 publications

(13 citation statements)

References 46 publications

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“…Moreover, surface segregation can be prevented. Unlike in other cases, where an additional capping layer foreign to the system is employed [65], the compositional gradient leads to the formation of a native capping layer, which functions as barrier against surface precipitation, thus preventing a ''bleeding out'' and local depletion of one or several of the constituents. The prevention of surface precipitates has several advantages: compositions are stable as local depletion of Cu is prevented, sublayer morphologies are consistent throughout the entire sublayer, without the formation of interfacial regions and surface roughness is stable throughout annealing procedures and not distorted by surface segregates.…”

Section: Multilayer W-cu Thin Filmmentioning

confidence: 98%

From solid solutions to fully phase separated interpenetrating networks in sputter deposited “immiscible” W–Cu thin films

2015

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Section: Multilayer W-cu Thin Filmmentioning

confidence: 98%

From solid solutions to fully phase separated interpenetrating networks in sputter deposited “immiscible” W–Cu thin films

2015

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“…Given the unique governability over the deposition temperature and rate, physical vapor deposition (PVD) has often been the synthesis technique of choice to study phase ordering in immiscible systems [5][6][7][8]. Furthermore, unlike bulk phase separation in which the CONTACT Benjamin Derby benderby@umich.edu Department of Materials Science and Engineering, University of Michigan, Ann Arbor, MI 48109, USA Supplemental data for this article can be accessed here.…”

Section: Introductionmentioning

confidence: 99%

“…In the case of the former approach, a binary alloy which is highly immiscible is co-sputtered. Deposition at room temperature results in a chemically homogeneous amorphous film [6]. Annealing the samples at elevated temperature induces phase separation as a result of nucleation and growth or spinodal decomposition depending on the system [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Processing of novel pseudomorphic Cu–Mo hierarchies in thin films

Derby

Cui

Baldwin

et al. 2018

Materials Research Letters

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A new processing route has been discovered through which far-from-equilibrium, metastable architectures with unprecedented properties are synthesized. This novel architecture contains many orders of hierarchy with multiple concentration modulation wavelengths. At one length scale, the matrix is comprised of lateral modulations of BCC Mo and pseudomorphic BCC Cu with a wavelength of 10 nm. FCC, Cu-rich islands of approximate 250 nm diameter are woven in-between the Mo-Cu matrix and contain ordered arrays of pseudomorphic, FCC, Mo-rich, coherent precipitates of approximately 1.0 nm diameter spacing. The resulting material exhibits unprecedented mechanical behavior of extensive plastic deformability at room temperature. IMPACT STATEMENT Traditional phase separated thin film morphologies are monolithic in architecture with only one concentration wavelength. By carefully manipulating the self-assembly kinetics through the deposition rate, we processed a structure with multiple concentration modulation wavelengths.

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“…Another significant and unique contribution of APT has been for aiding in compositional quantification of phase separation in alloys by spinodal decomposition [165][166][167]. APT can provide quantitative information on the amplitude and wavelength of the compositional modulations as a function of time in alloy systems prone to spinodal decomposition [168][169][170][171][172]. For example, APT has been used extensively to study the correlation of microstructure resulting from spinodal decomposition with various mechanical and magnetic properties of Fe-Cr-based alloys [173].…”

Section: Applications Of Apt In Materials Analysismentioning

confidence: 99%

Three-dimensional nanoscale characterisation of materials by atom probe tomography

Devaraj

Perea

Liu

et al. 2017

International Materials Reviews

140

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The development of three-dimensional (3-D), characterisation techniques with high spatial and mass resolution is crucial for understanding and developing advanced materials for many engineering applications as well as for understanding natural materials. In recent decades, atom probe tomography (APT), which combines a point projection microscope and time-offlight mass spectrometer, has evolved to be an excellent characterisation technique capable of providing 3-D nanoscale characterisation of materials with sub-nanometer scale spatial resolution, with equal sensitivity for all elements. This review discusses the current state, as of APT instrumentation, new developments in sample preparation methods, experimental procedures for different material classes, reconstruction of APT results, the current status of correlative microscopy, and application of APT for microstructural characterisation in established scientific areas like structural materials as well as new applications in semiconducting nanowires, semiconductor devices, battery materials, catalyst materials, geological materials, and biological materials. Finally, a brief perspective is given regarding the future of APT.

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On spinodal decomposition in Cu–34 at.% Ta thin films – An atom probe tomography and transmission electron microscopy study

Cited by 42 publications

References 46 publications

From solid solutions to fully phase separated interpenetrating networks in sputter deposited “immiscible” W–Cu thin films

From solid solutions to fully phase separated interpenetrating networks in sputter deposited “immiscible” W–Cu thin films

Processing of novel pseudomorphic Cu–Mo hierarchies in thin films

Three-dimensional nanoscale characterisation of materials by atom probe tomography

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