# FS-PEX

 2017-06-2314:38 [PUBDB-2017-06005] Contribution to a conference proceedings/Contribution to a book et al The Population of Twin Related Boundaries in High Purity Nickel as measured with near‐field High Energy X‐ray Diffraction Microscopy 8th International Symposium on Superalloy 718 and Derivatives, Meeting locationPittsburgh, PA, USA, 28 Sep 2014 - 1 Oct 2014 793-804 (2014) Restricted: PDF PDF (PDFA); 2017-06-1913:47 [PUBDB-2017-05454] Journal Article et al High-Resolution Single-Grain Diffraction of Polycrystalline Materials Synchrotron radiation news 30(3), 35 - 40 (2017) [10.1080/08940886.2017.1316130]   Polycrystalline bulk materials are ubiquitous in everyday life, including biological, geological, and engineered structural and functional materials. Their fundamental units are individual grains, which are characterized by their microstructure; i.e., the arrangement of lattice defects [...] Restricted: PDF PDF (PDFA); 2017-06-1610:03 [PUBDB-2017-05205] Journal Article/Contribution to a conference proceedings et al Monitoring microstructural evolution in-situ during cyclic deformation by high resolution reciprocal space mapping 6th International Conference on Fracture Fatigue and Wear, Meeting locationPorto, Portugal, 26 Jul 2017 - 27 Jul 2017 Journal of physics / Conference Series 843(1), 012031 (2017) [10.1088/1742-6596/843/1/012031]   The recently developed synchrotron technique High Resolution Reciprocal Space Mapping (HRRSM) is used to characterize the deformation structures evolving during cyclic deformation of commercially pure, polycrystalline aluminium AA1050. Insight into the structural reorganization within single grains is gained by in-situ monitoring of the microstructural evolution during cyclic deformation [...] OpenAccess: PDF PDF (PDFA); 2017-06-1523:02 [PUBDB-2017-05176] Journal Article et al Martensite formation during incremental cooling of Fe-Cr-Ni alloys: An in-situ bulk X-ray study of the grain-averaged and single-grain behavior Scripta materialia 136, 124 - 127 (2017) [10.1016/j.scriptamat.2017.04.020]   The formation of martensite (ε and α′) in metastable austenitic Fe-18Cr-(10-11.5)Ni alloys was investigated in-situ during cooling. High-energy X-rays were used to study the bulk of the alloys [...] Restricted: PDF PDF (PDFA); 2017-06-1522:34 [PUBDB-2017-05175] Journal Article et al Slip systems and dislocation densities in individual grains of polycrystalline aggregates of plastically deformed CoTi and CoZr alloys Acta materialia 71, 264 - 282 (2014) [10.1016/j.actamat.2014.03.024]   A novel X-ray diffraction-based technique for grain-by-grain assessment of dislocation density within polycrystals is applied. The technique discriminates dislocation densities of different slip modes, slip systems and dislocation character [...] Restricted: Ungar_PeakProfiles_ActaMater_2014 - PDF PDF (PDFA); 1-s2.0-S1359645414001712-main - PDF PDF (PDFA); 2017-06-1522:22 [PUBDB-2017-05174] Journal Article et al A rotational and axial motion system load frame insert for in situ high energy x-ray studies Review of scientific instruments 86(9), 093902 (2015) [10.1063/1.4927855]   High energy x-ray characterization methods hold great potential for gaining insight into the behavior of materials and providing comparison datasets for the validation and development of mesoscale modeling tools. A suite of techniques have been developed by the x-ray community for characterizing the 3D structure and micromechanical state of polycrystalline materials; however, combining these techniques with in situ mechanical testing under well characterized and controlled boundary conditions has been challenging due to experimental design requirements, which demand new high-precision hardware as well as access to high-energy x-ray beamlines [...] OpenAccess: PDF PDF (PDFA); 2017-05-3014:54 [PUBDB-2017-03986] Contribution to a conference proceedings/Contribution to a book et al HR-TEM and HR-PES studies of metal nanoparticles in organic molecular thin film Atomically Controlled Surfaces, Interfaces and Nanostructures13th International Conference on Atomically Controlled Surfaces, Interfaces and Nanostructures, ACSIN 2016, Meeting locationFrascati, Rome, Italy, Italy, 9 Oct 2016 - 14 Oct 2016 Rome, Italy : Superstripes Press, Rome 2016, Science Series, 9, 206-207 (2016) [10.3204/PUBDB-2017-03986]   OpenAccess: PDF PDF (PDFA); 2017-04-0708:43 [PUBDB-2017-01533] Journal Article et al Unraveling Local Spin Polarization of Zhang-Rice Singlet in Lightly Hole-Doped Cuprates Using High-Energy Optical Conductivity Physical review / B 95(16), 165108 (2017) [10.1103/PhysRevB.95.165108]   Unrevealing local magnetic and electronic correlations in the vicinity of charge carriers is crucial in order tounderstand rich physical properties in correlated electron systems. Here, using high-energy optical conductivity(up to 35 eV) as a function of temperature and polarization, we observe a surprisingly strong spin polarizationof the local spin singlet with enhanced ferromagnetic correlations between Cu spins near the doped holesin lightly hole-doped $La_{1.95}Sr_{0.05}Cu_{0.95}Zn_{0.05}O_4$. [...] OpenAccess: PDF; External link: Fulltext 2017-03-2909:17 [PUBDB-2017-01493] Journal Article et al Transparent polycrystalline cubic silicon nitride Scientific reports 7, 44755 (2017) [10.1038/srep44755]   Glasses and single crystals have traditionally been used as optical windows. Recently, there has been a high demand for harder and tougher optical windows that are able to endure severe conditions [...] OpenAccess: PDF; 2017-02-1412:10 [PUBDB-2017-00957] Book/Report/Dissertation / PhD Thesis et al Automatic reduction of large x-ray fluorescence data-sets applied to XAS and mapping experiments [DESY-THESIS-2017-007] Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS, 130 pp. (2017) [10.3204/PUBDB-2017-00957] = Universität Paderborn, Diss., 2016   In this thesis two automatic methods for the reduction of large fluorescence data sets are presented.The first method is proposed in the framework of BioXAS experiments. The challenge of this experiment is to deal with samples in ultra dilute concentrations where the signal-to-background ratio is low. [...] OpenAccess: desy-thesis-17-007.title - PDF; Thesis - PDF;