The molecular interaction volume model (MIVM) developed by Tao is a fluid-based derived from statistical thermodynamics and fluid phase equilibria. MIVM was applied successfully to predict each element’s activity in Mn-based alloys, namely, Mn-C Mn-Fe, Mn-Fe-C systems. calculated binary parameters between metals (Fe, Mn) nonmetal (C) confirming strong Fe Mn alloy. indicated that iron has great ...

Abstract Materials such as biocompatible metals, ceramics, composites, and polymers are used in the fabrication of biomedical implants which human body especially for replacement hard tissues. However, they degrade with time since subjected to different mechanical conditions long-term exposure fluids corrosion. Therefore, curb these limitations, surface properties usually coated thin metallic n...

PROBLEM Blasting is a hazardous component of surface mining. Serious injuries and fatalities result from improper judgment or practice during rock blasting. This paper describes several fatal injury case studies, analyzes causative factors, and emphasizes preventive measures. METHOD This study examines publications by MSHA, USGS, and other authors. The primary source of information was MSHA's...

The first non-metal tricyanomelaminates have been synthesized via metathesis reactions and characterized by means of single-crystal X-ray diffraction and vibrational and solid-state NMR spectroscopy. The crystal structures of [NH4]2[C6N9H] (1) (P21/c, a ) 1060.8(2) pm, b ) 1146.2(2) pm, c ) 913.32(18) pm, â ) 112.36(3)°, V ) 1027.0(4) × 106 pm3), [C(NH2)3]3[C6N9]‚2 H2O (2) (P212121, a ) 762.12(...

Arsenic (atomic number, 33; relative atomic mass, 74.92) has chemical and physical properties intermediate between a metal and a nonmetal, and is often referred to as a metalloid or semi-metal. It belongs to Group VA of the Periodic Table, and can exist in four oxidation states: –3, 0, +3, and +5. Arsenite, AsIII, and arsenate, AsV, are the predominant oxidation states under, respectively, redu...