We report on the preparation, atomic resolution imaging, and element selective damage mechanism in atomically thin boron nitride membranes. Flakes of less than 10 layers are prepared by mechanical cleavage and are thinned down to single layers in a high-energy electron beam. At our beam energies, we observe a highly selective sputtering of only one of the elements and predominantly at the exit ...

The presence of small amounts of boron in ductile iron is reported to have multiple and sometimes conflicting effects on the mechanical properties of ductile irons. The technical literature up until the early 1990’s states that small amounts of boron is a powerful carbide stabilizing element. Boron levels as low as 0.001% (10 ppm’s or parts per million) stabilize pearlite but larger amounts wer...

Abstract Boron is an essential micronutrient that has raised much interest, given the narrow balance between its necessity and toxicity. Both natural anthropogenic emissions of boron into water sources can eventually deteriorate quality endanger ecosystem. In this review, we first present a general outline importance boron, chemistry in water, contamination, consequences followed by recent prog...