Journal Article

IMPULSE-2018-00287

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Materials science applications of Neutron Depth Profiling at the PGAA facility of Heinz Maier-Leibnitz Zentrum

Trunk, M. (Corresponding author)MLZ* ; Wetjen, M. ; Werner, L. ; Gernhaeuser, R.MLZ* ; Maerkisch, B.MLZ* ; Révay, Z.MLZ* ; Gasteiger, H. A. ; Gilles, R.MLZ*

2018
Science Direct New York, NY

Please use a persistent id in citations: doi:10.1016/j.matchar.2018.09.030

Abstract: Neutron depth profiling (NDP) is a non-destructive, isotope-sensitive profiling technique to monitor concentration profiles in almost any material matrix. Since NDP is sensitive to 6Li and lithium is widely used for different material science applications such as ceramics, optical waveguides or energy-storage systems, NDP offers answers to a broad spectrum of research questions. In the present work, the recently developed instrument N4DP at MLZ is used to address two research questions which are hardly accessible by conventional analytical techniques. First, the homogeneity of lithium formations within lithium niobate thin films for optical waveguide applications is investigated. Afterwards, the accumulation of inactive lithium in the solid-electrolyte-interphase (SEI) of silicon-graphite electrodes for lithium-ion batteries is studied ex situ. Since the material mass loading differs considerably between the two applications, a new analytical technique is introduced which mathematically separates the different particle signals and thus allows to investigate samples with high mass loadings.

Keyword(s): Instrument and Method Development (1st) ; Materials Science (2nd) ; Instrument and Method Development (2nd)

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Contributing Institute(s):

1. PGAA (PGAA)
2. MATSCI (MATSCI)
3. ADVMAT (ADVMAT)

Experiment(s):

1. PGAA: Prompt gamma activation analysis (NL4b)

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Database coverage:
; Clarivate Analytics Master Journal List ; Current Contents - Engineering, Computing and Technology ; Ebsco Academic Search ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Web of Science Core Collection

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