Glassy phases in organic semiconductors

10.1016/j.cossms.2018.03.001

2018-03-17

Organic semiconductors may be processed from fluids using graphical arts printing and patterning techniques to create complex circuitry. Because organic semiconductors are weak van der Waals solids, the creation of glassy phases during processing is quite com...

Stress corrosion crack initiation in Alloy 690 in high temperature water

10.1016/j.cossms.2018.02.001

2018-02-21

Initiation of stress corrosion cracks in Alloy 690 in high temperature water is a rare occurrence and depends on the method by which the sample is loaded. Only in dynamic straining experiments is crack initiation consistently observed. Stress relaxation in co...

Feedstock powder processing research needs for additive manufacturing development

10.1016/j.cossms.2018.01.002

2018-02-01

Additive manufacturing (AM) promises to redesign traditional manufacturing by enabling the ultimate in agility for rapid component design changes in commercial products and for fabricating complex integrated parts. By significantly increasing quality and yiel...

Recent approaches to reduce aging phenomena in oxygen- and nitrogen-containing plasma polymer films: An overview

10.1016/j.cossms.2018.01.001

2018-01-12

Plasma polymer films (PPFs) are well-known for their enhanced stability compared to conventional polymer coatings. However, PPFs tend to undergo aging in air or in aqueous environments due to oxidation, hydrophobic recovery, hydrolysis and dissolution of olig...

Anisotropic organic glasses

10.1016/j.cossms.2017.11.001

2017-12-01

While the last decades have seen considerable efforts to control molecular packing in organic crystals, the idea of controlling packing in organic glasses is relatively unexplored. Glasses have many advantageous properties that crystals lack, such as macrosco...

Hydrogen embrittlement in compositionally complex FeNiCoCrMn FCC solid solution alloy

10.1016/j.cossms.2017.11.002

2017-12-01

The influence of internal hydrogen on the tensile properties of an equi-molar FeNiCoCrMn alloy results in a significant reduction of ductility, which is accompanied by a change in the fracture mode from ductile microvoid coalescence to intergranular failure. ...

Coupled electronic and atomic effects on defect evolution in silicon carbide under ion irradiation

10.1016/j.cossms.2017.09.003

2017-10-16

Understanding energy dissipation processes in electronic/atomic subsystems and subsequent non-equilibrium defect evolution is a long-standing challenge in materials science. In the intermediate energy regime, energetic particles simultaneously deposit a signi...

Thermodynamics of concentrated solid solution alloys

10.1016/j.cossms.2017.08.001

2017-10-12

This paper reviews the three main approaches for predicting the formation of concentrated solid solution alloys (CSSA) and for modeling their thermodynamic properties, in particular, utilizing the methodologies of empirical thermo-physical parameters, CALPHAD...

Physical metallurgy of concentrated solid solutions from low-entropy to high-entropy alloys

10.1016/j.cossms.2017.09.002

2017-09-28

The alloy world could be divided into low-entropy (LEAs), medium-entropy (MEAs) and high-entropy alloys (HEAs) based on the configurational entropy at the random solution state. In HEAs, four core effects, i.e. high entropy, sluggish diffusion, severe lattice...

Decoding the glass genome

10.1016/j.cossms.2017.09.001

2017-09-11

Glasses have played a critical role in the development of modern civilization and will continue to bring new solutions to global challenges from energy and the environment to healthcare and information/communication technology. To meet the accelerated pace of...