Excerpts

After that, with the extension in the aging time, the hardness showed a decreasing trend.

Thus, the optimal single-particle compressive strength of abrasive grains shows a decreasing trend.

However, the differences in crack tip opening loads explain a quite significant influence of the deposition direction on the fatigue life.

The difference in the lattice parameters of the film and the precipitate is quite significant, where the precipitate has an 8.81% increase compared to the thin film in the free region.

A notable trend involves the ongoing replacement of mechanical fasteners with chemical applications, particularly evident in the building, construction manufacturing, and assembly industries.

A clear trend of decreasing band gaps with As concentration is observed as postulated above (inset of Figure 4 ).

The planes (sections I, II, and III) were intercepted at 0.375 m horizontally, and, by analysing the change in the velocity of the concrete after passing through the first and second layers of reinforcement, it could be seen that the flow velocity of the concrete between the first and second layers of reinforcement showed a trend of first increasing and then decreasing, and the flow velocity of the concrete between the first layer of reinforcement and the base plate also showed the same trend.

With a decrease in the concrete slump and an increase in the pumping flow rate, the slope of the concrete level curve between the two leaping points showed an increasing trend, and the leaping phenomenon continued to weaken as the pouring continued.

Overall, the magnitude of the tensile stress shows a decreasing trend with increasing angle, with a more significant change occurring in the latter range.

The SEM analysis for the TBT/EG pattern ( Figure 2 b) exhibited TiO 2 particles with plate-like or irregular shapes, along with a strong trend of agglomeration.

Although lower compared to some reports in the literature [ 43 , 68 , 74 , 75 , 76 , 77 ], which show compressive strength increases of 10% to 80%, depending on test age and NT content (1–4 wt.% NT), it can be said that the research results are in agreement with these reports, maintaining an increasing trend, and in contradiction with those indicated by Shekari and Razzaghi [ 60 ], who for a cementitious composite with 1.5% NTs report a reduction in compressive strength of 20.73% at the age of 28 days.

Figure 14 shows a decreasing trend in the plotted curve at oxygen pressures of 10 −17 atm.

Post 60 min: The particle size distribution continues to fluctuate with an overall trend toward larger sizes, indicating ongoing dissolution and recrystallization processes, with an increase in the proportion of larger particles (>1 μm).

From L1 to L7, the tensile strength and modulus of elasticity showed an overall trend of steady decrease ( Figure 6 d).

The bending strength and modulus of elasticity both showed a decreasing trend from L1 to L7 on these two bending directions ( Figure 5 e,f).

In the figure, the C–C/C=C and C–H/C–N stretching modes due to the pyrrole ring in the range of 1319–1594 cm −1 show an increasing trend in their relative intensity in the Ag NW@PPy.

With the increase in BWR content, the S max , S mean , and S total values of bee-like structures of aged asphalt showed a trend of increasing first and then decreasing, and the N value showed a trend of decreasing first and then increasing, indicating that BWR may affect the formation and disaggregation of bee-like structures.

Conversely, at a constant strain rate, the grain size shows an increasing trend with rising deformation temperatures.

With a constant deformation temperature, there is a decreasing trend in grain size as the strain rate increases.

It can be seen from the figure that the compressive strength of each group of concrete test blocks shows an increasing trend with age, but the increasing amplitude is different.

On this basis, with the whisker content increasing from 0% to 0.5%, the proportion of harmless holes in concrete showed a trend of first increasing and then decreasing, while the proportion of multi-damaged holes showed a trend of first decreasing and then increasing, and the proportion of harmless holes was the highest when the whisker content was 0.4% (HF4).

The only exception is represented by the epoxy composite containing the highest boric acid content; The results of mechanical tests in compression mode do not indicate a clear trend of the influence of boric acid content on the mechanical characteristics of the tested epoxy composites.

found nanoscale grain size in the [(Ba 0.85 Ca 0.15 ) 0.995 Nd 0.005 ](Ti 0.9 Hf 0.1 )O 3 ceramics prepared via hydrothermal method exhibited an increasing trend with the increase in sintering temperature and holding time, which significantly affected the dielectric constant and T C temperature [ 22 ].

A comparison between Figure 7 a and the subsequent Figure 7 b–d reveals a clear trend: as batteries experience micro-overcharge cycling, the number of cracks (highlighted within blue circles) on the cathode material surface proliferates [ 28 ].

As the temperature increased, the residual compressive strength and elastic modulus of concrete generally showed a decreasing trend.