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Type Tang, Fengzai; Gault, Baptiste; Ringer, Simon P.; Martin, Phil; Bendavid, Avi; Cairney, Julie M.
  Publication Microstructural investigation of Ti-Si-N hard coatings Volume Journal Article
Pages 2010
  Abstract Scripta Materialia  
  Corporate Author  
Publisher 63  
Editor 2
  Summary Language 192-195 Series Editor Titanium silicon nitride; Pulsed laser atom probe (PLAP); Nanostructure; Nanocomposite  
Abbreviated Series Title The microstructures of nanostructured Ti-Si-N hard coatings were investigated by transmission electron microscopy and pulsed laser atom probe. C and O impurities were detected. No evidence of increased Si levels at the grain boundaries was found, suggesting that Si is either in the form of a layer too thin to be detected using the techniques employed or in the form of a solid solution of SiN clusters.
  Series Issue ISSN  
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1359-6462 no NU @ karnesky @ 10856
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Walls, J. M.; Martin, A. D.; Southworth, H. N. Combined FIM AES and LEED study of the structure and composition of ion- bombarded W surfaces Journal Article 1975 Surface Science Surf. Sci. 50 low energy ion bombardment; Field Ion Microscopy no 6984
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Wu, Ling-Mei; Seyring, Martin; Rettenmayr, Markus; Wang, Wen-Hsiung Characterization of precipitate evolution in an artificially aged Al-Zn-Mg-Sc-Zr alloy Journal Article 2010 Materials Science and Engineering: A 527 1068-1073 Al-Zn-Mg-Sc-Zr alloy; age hardening; precipitation; transmission electron microscopy (TEM) The precipitates of an age hardenable Al-Zn-Mg-Sc-Zr alloy aged at 140 °C have been studied by transmission electron microscopy (TEM). The results are interpreted in terms of structural transformations that involve two types of Guinier-Preston (GP) zones (I and II), the metastable [eta]â hardening precipitate and the stable phase [eta]-phase (MgZn2). At early stages of ageing, the GPI zones act as nucleation sites for the plate-like [eta]â phase which precipitates on the 111Al plane. The transformation from [eta]â to [eta] occurs gradually at longer ageing times. The [eta] particles mainly consist of [eta]1 and [eta]2 phase, with small amounts of [eta]4 type and minor quantities of [eta]â type structures. Furthermore, while a fine dispersion of coherent Al3(Sc,Zr) precipitates is known to have a beneficial effect on the strengthening of the alloy, the formation of GPII zones is suppressed in the presence of zirconium that leads to a reduction in the amount of [eta]â formed during subsequent ageing. 0921-5093 no NU @ karnesky @ Wu2009 10688
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