Ductile-to-brittle transition and materials’ resistance to amorphization by irradiation damage

Abstract

By summarizing over seven hundred elastic constants of materials with various crystal structures, we have found that ductile-to-brittle transition can be reflected by the change of G/B, an important indicator of bonding type.

Dual Cross-Linked Gelatin-Based Adhesive for Leather with Low Curing Temperature and Improved Bonding Strength

“…The slight decrease of the fatigue resistance to folding can be attributed to the synergistic action of hydrogen bonds and imine bonds, wherein a variety of bonding mechanisms come into play. 43 Currently, NP adhesives are finding widespread use as shoe adhesives in everyday life. As shown in Figure 7(d), the addition of a small quantity of GDP composite adhesive to the NP adhesive can yield a certain degree of enhanced adhesion.…”

“…The bonding strength of the GDP composite adhesive experienced a decrease of 27.39% after 500 folding cycles. The slight decrease of the fatigue resistance to folding can be attributed to the synergistic action of hydrogen bonds and imine bonds, wherein a variety of bonding mechanisms come into play …”

Core Electron Count as a Versatile and Accurate New Descriptor for Sorting Mechanical Properties of Diverse Transition Metal Compounds

“…[21,[25][26][27] The values of G/B and v are the most widely utilized indicators to evaluate brittleness and ductility for materials. [37,38] The v was calculated by the following formulation: v = (3B/2G)/2(3B + G). [39] Generally, a material is considered ductile when G/B < 0.57 or v > 0.26, while materials outside these ranges are considered brittle.…”

“…[39] Generally, a material is considered ductile when G/B < 0.57 or v > 0.26, while materials outside these ranges are considered brittle. [37,38,40,41] brittle (G/B > 0.57) and ductile (G/B < 0.57) compounds both exist at VEC = 9.25 and 9.5, and this phenomenon highlights the situation that key mechanical properties scatter in too wide a range, making the VEC descriptor ineffective in sorting the results and offering useful guidance. These overall trends are corroborated by the results of v using the above-stated criteria as shown in Figure S1a (Supporting Information).…”

Recent Progress in the Nanoskiving Approach: A Review of Methodology, Devices, and Applications

“…The macro scopic appearance of the nanostructures shows strong plasticity when the dislocation slip system is largely activated under the compressive stress that occurs during the nanoskiving pro cess. [38] The analysis of the mechanism above can be used to provide a thorough explanation of the phenomenon where the nanowires remain intact during nanoskiving of hard and brittle silicon embedded materials after prenanocrystallization. This strategy for prenanocrystallization of the donor substrate pro vides a new pathway for fabrication of intact nanowires com posed of hard and brittle embedded materials with a high yield.…”