The effects of two types recycled micro-powder (concrete powder and brick powder) replacing part cement on the mechanical properties mortar were studied. results show that contribution concrete to strength is slightly stronger than powder. In a certain range dosage, performance close pure cement. When content less 10 %, compressive flexural will not be greatly affected: over 20% decrease signif...

We have deposited a series of WC–Co coatings by the high velocity oxy fuel (HVOF) process, using three different powders, and different spray conditions. The powders are a nanocrystalline (Nanocarb), a near-nanostructured powder (Infralloy) containing a proprietary additive aimed at retarding grain growth, and multimodal (mixed micro and nano) powder (Nanomyte). HVOF spray conditions were stoic...