In recent years, many companies and research institutes have been conducting on food 3D printers. The most commonly known printing method is the thermal melting lamination method, fused deposition modeling (FDM), in which plastic materials are melted then ejected from a nozzle. used this thermoplastic resins such as ABS PLA. order to print variety of materials, various types methods developed, ...

This article introduces an efficient, low cost, and clean (zero pollution) zone melting phosphorus purification technique. We have successfully removed arsenic from solid phosphorus by melting a narrow region and making the resulting liquid zone travel slowly through a relatively long ingot of phosphorus. This technique can reduce arsenic concentration in solid phosphorus from 100 ppm to 10 ppm...

Submitted for the MAR09 Meeting of The American Physical Society Molecular dynamics study of the phase transition in the bcc metal nanoparticles YASUSHI SHIBUTA, TOSHIO SUZUKI, The University of Tokyo — The phase transition between liquid and solid phases in bcc metal nanoparticles was investigated using a molecular dynamics simulation. The nucleation from an undercooled liquid droplet was obse...

The vacancy mechanism of the melting process is utilized as a starting point for deriving the formula for the difference of the heat capacity of the liquid and solid metal in the neighbourhood of the melting point. From these calculations it follows that the difference C,, C,, is the same for all the metals and equals 3.50 J g.atom-' K-'. This result is compared with the existing in the literat...

Liquid-liquid transitions under high pressure are found in many elemental materials, but the transitions are known to be associated with either sp-valent materials or f-valent rare-earth elements, in which the maximum or a negative slope in the melting line is readily suggestive of the transition. Here we find a liquid-liquid transition with a positive melting slope in transition metal Ti from ...

The weldability of GTD-111 nickel-based superalloy by pulsed Nd:YAG laser welding with an average power of 250 W was studied, and the microstructural evolution and cracking characteristics were also investigated. The solidification cracking of the fusion zone (FZ) and the intergranular liquation cracking in the heat affected zone (HAZ) were observed in the joint. Solidification cracking was cau...