Reflow soldering in a nitrogen atmosphere is a common process consideration in surface mount technology assembly. This is because the use of nitrogen in reflow equipment may benefit the process as well as the quality of the end product, where it can increase the reliability of the solder joint. So far, many papers have reported effects of cooling speed, type of solder pastes and solder fluxes o...

Department of Physics and Astronomy, Rice University, Houston, TX 77005, USA. Na tional High Magnetic Field Laboratory, Florida State University, Tallahassee, FL 32310 USA. Department of Mechanical Engineering, Texas A&M University, College Station TX 77843, USA. Materials Science and NanoEngineering, Rice University, Houston, TX 77005, USA. Department of Translational Molecular Pathology, Univ...

A complete determination of the crystal structure of the binary intermetallic compound most rich in zinc, the t-phase, in the zirconium-zinc system has been carried out with use of all intensity data obtainable from single crystal Weissenberg photographs taken with Cu Ka radiation. The composition of the completely ordered phase is ZrZn22. The refinement of the structure was carried out by appl...