“Materials Science” Challenges in the Additive Manufacturing of Industrial Parts by Hascoet, Jean-Yves, Marya, Surendar, Marya, Manuel, Singh, Virendra

“…Additive Manufacturing (AM), somewhat like fusion welding, brings into play: (1) complex and interacting physical phenomena such as heat and mass transfer, phase changes (including melting, solidification, allotropic transformations and diffusion phenomena such as epitaxial growth, grain growth), (2) a number of process variables associated to the moving heat source (e.g., its power, power distribution, relative speed, size, all affecting energy density), its paths (e.g., linear, circular, oscillatory), and added metal feed rate via powder, wire, or ribbon, all controlling deposit dimensions, aspect-ratios, and properties, including defects. …”
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Novel material composites for dielectric elastomer actuators by Ankit

“…Hence, a novel low-temperature phase change material is identified for enabling reversible rigidity in the soft actuators owing to its low melting point, significant gap between melting and solidification, superior thermal stability, high mechanical strength and high dielectric constant. …”
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Interfacial characterization of SLM parts in multi-material processing : intermetallic phase formation between AlSi10Mg and C18400 copper alloy by Sing, Swee Leong, Lam, Lit Ping, Zhang, Dan Qing, Liu, Zhong Hong, Chua, Chee Kai

“…Multi-material processing in selective laser melting (SLM) using AlSi10Mg and UNS C18400 copper alloy was carried out. …”
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Computational framework for the simulation of multi material laser powder bed fusion by Tang, Chao, Yao, Liming, Du, Hejun

“…With reasonable assumptions, conduction mode or keyhole mode laser melting of miscible materials can be simulated via the proposed computational framework. …”
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Thermal characterization of novel 3-D printed lattice structures by Poh, Yew Teck

“…The researchers employed Selective Laser Melting (SLM) technology to print lattice structures with various geometries and infill densities. …”
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Enhanced mechanical and failure characteristic of woven carbon fiber reinforced thermoplastic laminates using core-shell particles by Sharma, Anurag, Joshi, Sunil Chandrakant

“…The primary challenge associated with this field is the high melting temperature and high viscosity of thermoplastic polymer melt, which restrict filler dispersion within them. …”
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Fabrication and characterization of protein-based tissue scaffold by Ko, Kok Wei.

“…It was observed that the change in SF concentration does not affect the melting and crystallization behaviours of silk. And the spectra recorded from the structural analysis indicated the presence of secondary structures (α-helices and β-sheets) in amide I, II, III regions of protein. …”
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A study of shape memory effect in hydrogel/polyethylene glycol hybrid by Luke, Pennefather Pyne

“…Brief experiments were carried out and results show that HG/PEG hybrids do not experience volume expansion when heated above melting temperature of hybrid. Hybrids containing high weight percentage of PEG (> ~200 wt% of PEG) showed thermo-responsive shape memory effect, while hybrids containing lower weight percentage of PEG (< 100 wt% of PEG) became hard and brittle. …”
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Recognition of A-U and U-A base pairs in RNA duplexes by modified peptide nucleic acids by Yuan, Zhen

“…Our non-denaturing polyacrylamide gel electrophoresis and thermal melting results suggest that it is promising to incorporate modified thymine residues into PNAs for selective and sequence-specific recognition of RNA duplexes. …”
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Evaluation & characterization of biodegradable polymer by Loo, Jason Zi Shun

“…The increase in moisture content also decreases glass transition temperature while increasing melting temperature. Likewise, changes were observed for samples that were buried in soil. …”
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Multi-scale Modeling Of Additive Manufacturing Process by Seet, Gim Lee, Tor, Shu Beng, Chua, Chee Kai, Chandra, Shubham, Phanikumar, Gandham

“…To this need, a multi-scale numerical study is carried out combining a three-dimensional finite element (FE) based macro-scale and a cellular automaton (CA) based meso-scale model in order to simulate the dendritic grain growth in the selective laser melting (SLM) technique. The macro-scale model successfully simulates the heat transfer and fluid flow physics associated with a moving melt pool. …”
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Mathematical modelling of subglacial drainage and erosion by Ng, FSL

“…At steady flow, creep closure of the channel walls is counteracted by melt-back due to heat dissipation, and this leads to an equilibrium relation between channel water pressure and discharge. …”

Phase Change Dispersion Made by Condensation–Emulsification by Fischer, Ludger J., Dhulipala, Somayajulu, Varanasi, Kripa K.

“…A recently published method to produce emulsions by the direct condensation of the dispersed phase into the emulsifier-containing continuous phase is applied on this PCD. n-Decane is used as PCM, and the melting temperature is -30 °C. The achieved apparent specific heat capacity lies above 15 kJ/kg·K, more than 3 times the value of water. …”
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Petrogenesis of the Deccan high-Mg basalts and picrites by Chatterjee, Nilanjan

“…Hence, a crustal partial melt was simultaneously subtracted according to energy constraints at each reverse fractionation step for these samples. …”
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Experimental study of single- and two-phase heat transfer of fractal-like structures by Mak, Joel Tse Hoi

“…Four fractal-like designs (k = 1 to k = 4) were fabricated using Selective Laser Melting (SLM) with increasing branch levels. These channels were semi-circular, with a diameter ratio of 2−13, a length ratio of 0.5 and a bifurcation angle of 25˚. …”
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Nanoindentation study on the mechanical behaviour of 3-D printed high-entropy alloys by Lum, Natalie Chee Shuan

“…Additive manufacturing (AM) has the capability to overcome this issue with its numerous features and qualities. Selective laser melting (SLM) was employed to fabricate the Al0.5CoCrFeNi HEA samples with two different sets of processing parameters, producing high and low porosity samples. …”
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Mechanically robust anti-fingerprint coating on polycarbonate substrate by Sun, Ye, Rawat, Rajdeep Singh, Chen, Zhong

“…The developed room temperature deposition process makes it potentially applicable for other low melting point polymeric substrates towards a wider range of functional surface applications.…”
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Experimental analysis on 3D printing of dissimilar metal materials by Tan, Wei Jie

“…Therefore, the primary goal of this study is to understand and identify the optimal print parameters to achieve the best the mechanical properties, microhardness and strength of the dissimilar metal materials using Selective Laser Melting (SLM). The print parameters studied include laser power, scanning speed, hatch distance, point distance, powder layer thickness, and exposure time to the laser. …”
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Interacting crack problems in 3D printed materials by Tan, Bernard Zhi Yang

“…Furthermore, the rapid melting and solidification of powders may lead to cracks along the interface or sub-interface of dissimilar metals. …”
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Additive manufacturing oriented parametric topology optimization design and numerical analysis of steel joints in gridshell structures by Zuo, Wenkang, Chen, Man-Tai, Chen, Yangyu, Zhao, Ou, Cheng, Bin, Zhao, Jincheng

“…A typical optimized joint made of 316L stainless steel was additively manufactured using selective laser melting.…”
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