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In-situ investigation of microcrack formation and strains in Ag–Cu-based multi-metal matrix composites analysed by synchrotron radiation

“…As PM commercially pure titanium grade 1 (Ti) and the near-α-titanium alloy Ti-6Al-2Sn-4Zr-2Mo (wt%, -abbreviated Ti6242) were chosen. Titanium alloys are known to provide favourable interfaces to the carbon coating of the fibre [23], and by using Ti6242 and SCS-6 a well-characterised system is provided [24,25]. The material used as filler is a binary eutectic Ag-based alloy (Ag-28Cu, wt%, obtained from Umicore, Germany, -abbreviated AgCu).…”

Temperature-dependent evolution of interfacial zones in SiCf/C/Ti17 composites

“…[1][2][3][4] Motivated by specic application in aerospace eld, the maximum service temperature of SiC f /Ti can reach up to 800 C for a long term or up to 1000 C for a short term, which is primarily limited by the bre/matrix interfacial stability and matrix material selection. 5,6 The SiC f / Ti has been considered as a candidate material for blades in turbojet engines, due to the corresponding high shear strength, transverse property and suitable retention of strength under 538 C. 7 Additionally, as the service temperature reaches up to 600-800 C, the compressor bling fabricated by the SiC f /Ti through corresponding structural design can reduce the weight by approximately 40-70%, as compared to the conventional titanium alloy material, thereby highly improving the thrust weight ratio of turbojet engines. 1,8 In contrast to the previous applications in a propulsion system requiring long term stability, the SiC f /Ti is also a potential material for short term applications (<1 hour), as oen important for space or hypersonic ight vehicles.…”

Structural Dynamics in Molecules Observed with Femtosecond X-Ray Pulses

“…The field of ultrafast diffraction from photo-excited molecules in the gas phase was significantly advanced with the experiments by the groups of Ahmed Zewail and Peter Weber (one of the authors in this work) in the late 1990s and early 2000s using ultrafast laser pulses to generate electron pulses for ultrafast electron diffraction (UED). 2,3 These experiments, which reached a temporal resolution of a few picoseconds, followed the long tradition of gas phase electron diffraction as a structure determination method, with the added dimension of ultrafast time resolution. Picosecond UED experiments were successful in determining the structure of transient states and reaction kinetics on the picosecond timescale.…”