Additive Manufacturing offers geometric freedom excellently suited for topology optimized light weight designs. Ideally these should be produced from materials of high strength to weight ratio such as aluminium-copper alloys. Yet these are considered unsuitable for welding. With Laser Beam Melting of Metals in powder bed (LBM), the only class of aluminium alloys widely processed is that of alum...

Due to their exceptional mechanical and chemical properties natural abundance, cellulose nanocrystals (CNCs) are promising building blocks of sustainable polymer composites. However, the rapid gelation CNC dispersions has generally limited CNC-based composites low fractions, in which remains dominant phase. Here we report on formulation processing crosslinked CNC-epoxy with a fraction exceeding...

With the first ever synthesis of monoazidopentaerythritol trinitrate, a comparative study properties all azidonitrate derivatives from pentaerythritol tetranitrate (PETN) to tetraazidopentaerythritol (TAPE) was possible. The azides were prepared by halogen azide exchange and remaining alcohols then converted into organic nitrate esters using acetyl nitrate. resulting compounds (PETN), mononitra...