Sven M F Asmus

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A hydroxyapatite-based biomimetic composite, which is henceforth referred to as a synthetic bony material with high toughness characteristics, was prepared. It was obtained from a hydroxyapatite (HAp) skeleton with a relative porosity fraction of approximately 32 vol %, prepared by cold-isostatic-press compaction, followed by a sintering process, leading to(More)
An experimental method to measure microstresses in cement paste, as a typical granular medium, was developed employing a fluorescence microprobe spectroscopy method. Stresses were recorded with a Raman spectrometer making use of (Cr3+ fluorescence lines of) alumina as a piezospectroscopic stress sensor. In a two-dimensional stress map, fluctuations in the(More)
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