Sökning: "energy dispersive X-ray spectroscopy EDX"

Visar resultat 1 - 5 av 20 avhandlingar innehållade orden energy dispersive X-ray spectroscopy EDX.

1. 1. Surface Characterization of Soft Magnetic Composite Powder and Compacts

   Författare :Christos Oikonomou; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; X-ray photoelectron spectroscopy XPS ; energy dispersive X-ray spectroscopy EDX ; surface layers; thickness determination; powder metallurgy PM ; soft magnetic composites SMC ; focused ion beam FIB ; depth profiling; high resolution scanning electron microscopy HR SEM ;

   Sammanfattning : .... LÄS MER

3. 2. Characterization of Pathfinders and Indicators of Gold

   Författare :Gabriel Kofi Nzulu; Martin Magnuson; Per Eklund; Hans Högberg; Farid Akhtar; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Pathfinder; Indicator; Gold; Hydrothermal; X-ray; Diffraction; Kubi; Ghana;

   Sammanfattning : Research on natural minerals and their chemical bonding to economically critical raw materials is a viable industrially relevant research area due to its increasing demand. Meeting demands requires fast, robust, and efficient techniques to explore new ore deposits and continuous operation of active mines as well as recycling. LÄS MER

4. 3. Bonadsmåleri under lupp: Spektroskopiska analyser av färg och teknik i sydsvenska bonadsmålningar 1700-1870

   Författare :Ingalill Nyström; Göteborgs universitet; []
   Nyckelord :HUMANIORA; HUMANITIES; NATURVETENSKAP; NATURAL SCIENCES; HUMANIORA; HUMANITIES; HUMANIORA; HUMANITIES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; bonad; bonadsmåleri; folkkonst; Art Technological Source Research; ATSR; Konstteknologi; materialanalys; färg; tempera; bindemedel; pigment; färgämne; färgstoff; spektroskopi; Raman; FTIR; SEM-EDX Infrared Spectroscopy; FT-Raman; energidispersiv röntgen; Scanning Electron Microscopy-Energy Dispersive X-ray Multispektralteknik; Multi Spectral Imaging System;

   Sammanfattning : The objects of this PhD thesis are Southern Swedish painted wall-hangings: folk art paintings from the 18th and 19th centuries. The aim and objective of the study are: to investigate the construction and manufacturing processes of the painted wall-hangings; to identify both the painting materials and other substances employed; and, to document painting techniques used by different painters within this painted wall-hanging tradition. LÄS MER

5. 4. Microstructure of a cubic boron nitride tool material before and after hard turning

   Författare :Jenny Angseryd; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; EELS; cBN; microstructure; PCBN; adherent layer; EDX; wear; SEM; EFTEM; TEM;

   Sammanfattning : AbstractPolycrystalline cubic boron nitride (PCBN) materials are widely used in turning of hardened steels due to their beneficial mechanical properties like high hardness at elevated temperatures and, compared to diamond, for being more chemically stable towards iron at temperatures typical for turning operations (800-1000˚C). The wear of PCBN tools is influenced by several factors, like machining parameters, different tool geometries and varying composition of PCBN tools as well as workpiece material. LÄS MER

7. 5. Development of Cermet Microstructures during Sintering and Heat-Treatment

   Författare :Jenni Zachrisson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; APFIM; EELS; cemented carbides; quantitative microanalysis; gradients; N ; TEM; EFTEM; hardmetals; EDX; Ti C; light elements;

   Sammanfattning : The work presented in this thesis is concerned with the microstructure of Ti(C, N) based cermet materials used in cutting tool applications. Several techniques have been used to study the microstructure of cermets, in particular transmission electron micro-scopy in combi-na-tion with energy dispersive X-ray analysis and electron energy-loss spectroscopy, energy-filtered transmission electron micro-scopy, atom-probe field-ion microscopy and scanning electron microscopy. LÄS MER