L
Lothar Spieß
Researcher at Technische Universität Ilmenau
Publications - 31
Citations - 378
Lothar Spieß is an academic researcher from Technische Universität Ilmenau. The author has contributed to research in topics: Epitaxy & Thin film. The author has an hindex of 7, co-authored 31 publications receiving 324 citations.
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Journal ArticleDOI
Growth of cubic InN on r-plane sapphire
V. Cimalla,Jörg Pezoldt,Gernot Ecke,R. Kosiba,Oliver Ambacher,Lothar Spieß,G. Teichert,Hai Lu,William J. Schaff +8 more
TL;DR: In this paper, a metastable cubic phase on a noncubic substrate was proposed where the metastable zinc blende phase grows directly on the r-plane sapphire while the wurtzite phase arises as the special case of twinning in the cubic structure.
BookDOI
Moderne Röntgenbeugung: Röntgendiffraktometrie für Materialwissenschaftler, Physiker und Chemiker
Journal ArticleDOI
Improved adhesion at titanium surfaces via laser-induced surface oxidation and roughening
Soren Zimmermann,U. Specht,Lothar Spieß,Henry Romanus,Stefan Krischok,Marcel Himmerlich,J. Ihde +6 more
TL;DR: In this paper, commercial titanium was treated in ambient atmosphere using pulsed Nd:YAG ( λ = 1064 nm ) laser irradiation, which led to the presence of a surface layer with strongly improved, hydrothermally stable adhesion when joined to a one-component, hot-curing epoxy-based adhesive.
Journal ArticleDOI
Preparation of single phase tungsten carbide by annealing of sputtered tungsten-carbon layers
TL;DR: In this article, propane added to the annealing ambient stimulates a transformation of tungsten-carbon layers to a stoichiometric WC phase, and the variation of the propane concentration allows a continuously alteration of the layer structure between single phase WC and a mixed layer with dominant WC.
Journal ArticleDOI
Influence of ion implantation on titanium surfaces for medical applications
Stefan Krischok,Claudia Blank,Michael Engel,Richard Gutt,Gernot Ecke,Jens Schawohl,Lothar Spieß,Frank Schrempel,Gerhard Hildebrand,Klaus Liefeith +9 more
TL;DR: In this paper, an ion implantation of ions into the near surface layer is proposed to improve the osseointegration of metallic biomaterials like titanium, which is well known that surface topography and surface physico-chemistry as well as visco-elastic properties influence the cell response after implantation into the human body.