We present a simple and fast algorithm to test the thermodynamic stability and determine the necessary chemical environment for the production of a multiternary material, relative to competing phases and compounds formed from the consituent elements. If the material is found to be stable, the region of stability, in terms of the constituent elemental chemical potentials, is determined from the ...

Introduction Vulcanization refers to a specific curing process of rubber involving high heat and the addition of sulfur or other equivalent curatives. It is a chemical process in which polymer molecules are linked to other polymer molecules by atomic bridges composed of sulfur atoms or carbon-to-carbon bonds. The end result is that the springy rubber molecules become cross-linked to a greater o...

Silicon carbide (SiC) has been used for many conventional applications that require mechanical and chemical stability at high temperatures. Mechanical stability is defined as the ability of a particular material to preserve its mechanical properties – elasticity, fracture toughness, hardness – at temperatures below and above room temperature. Chemical stability is similarly defined as the abili...

 In this paper, the performance of carbon nanocone as an ideal adsorbent and sensing material for tetryl was investigated by density functional theory. For this aim, the structures of tetryl, carbon nanocone and their complexes were optimized geometrically. Afterwards, IR and FMO computations were done on them. The obtained thermodynamic parameters showed the interaction of car...

extreme challenge because of the limited sample amount available combined with possible contamination and chemical modification during sample storage and processing (1, 2). In general, many grams of meteorite material are required and their chemical analysis is laborious, often involving a series of extraction, purification, and identification steps (1, 3). We report here a new method for the d...

bonding to dentin is a promising property, which can prevent leakage and improve the sealing ability of endodontic filling materials. resilon was developed and recommended initially because the existing root canal filling materials did not bond to root canal dentin. since its introduction in 2004, numerous reports have been published regarding various aspects of this material. this article aime...

The current government policy is that scholars do not look for work anymore, but create jobs. Furthermore, the Minister of Education and Culture launched an independent campus carried four policies. second right students to study outside program, example become entrepreneurs. From government's Culture, entrepreneurship-based basic chemistry teaching materials are needed. purpose this research d...