Excerpts

This is especially interesting, as the changes in the material strengths ( Figure 4 ) do not follow such a clear trend.

[ 24 ] investigated the effect of PTFE and surfactant concentrations on the deposition rate and surface free energy of nickel–copper–phosphorus–polytetrafluoroethylene (Ni-Cu-P-PTFE) composite plating, and the experimental results showed that the deposition rate of the Ni-Cu-P-PTFE composite plating showed a trend of increasing and then decreasing with the increase in PTFE and surfactant concentrations.

For the PV value, although the sawed workpiece size decreases sequentially from Figure 7 a–c, the increase in feed rate has a greater impact on the PV value, so the waviness PV values show an increasing trend from Figure 7 a–c.

The results show that the apparent density of the grouts with BF has a decreasing trend with the increase in BF volume content, and in contrast, a proportional increase in void volume is shown.

Thus, it is extremely significant to improve the sorption performance and reliability of the getter films.

The temperature and sulfate ion concentration in cement concrete sulfate attacks are highly significant, and the primary products of the erosion of sulfate attack on cement concrete are plate-like gypsum, rod-like ettringite with a larger slenderness ratio, incompletely corroded calcium hydroxide, and granular sulfate salt [ 91 ].

The standard deviation of the mean values of samples G1 and G2 is quite significant, a symptom of a certain inhomogeneity in the acquired results.

With the increasing strain, dislocation interaction with grain boundaries leads to a decreasing trend of twin boundaries.

The values |Z| for all tested samples showed an increasing trend during the experiment.

All ions demonstrated either marginally significant or significant effects of SiC at decreasing the release of ions into solution.

As the strain increases, the recrystallized grains gradually decrease, while the substructured grains show an increasing trend, which is partially consistent with the GB evolution discussed above.

It could be seen from Figure 8 b that with the extension of the curing time, the saturation index of the OPC/CSA cement blends showed a decreasing trend, illustrating that the expansion characteristics of CSA cement mainly occurred early in the curing period.

As highlighted in Figure 3 , the outputs related to the analysis with lower DAF, in general, show an increasing trend of peak forces when increasing the geometry porosity.

On the one hand, introducing carbide layers in diamond/Al composites results in the formation of a gradient in the sound velocity between the diamond and aluminum, which plays a positive role in improving the phonon–phonon (ph–ph) coupling, thus leading to an increasing trend in the ITC and TC of the composite.

Meanwhile, there was a slight trend of increased weight loss of steel sheets in the blank medium, mainly due to electrochemical corrosion.

As can also be observed from Figure 6 , the ITC and TC of the composites showed a decreasing trend as the carbide layer thickness gradually increased.

With the increase in powder laying speed, the average scores standard deviation of the roll/scraper-formed powder bed showed an increasing trend.

In brief, the corrosion current density generally showed a trend of first increasing and then decreasing, which means the corrosion was initially enhanced and then weakened. 3.3.6.

In Figure 9 , the Poisson’s ratio shows an increasing trend with the gradual increase of α.

It stated that the FIMEC test is suited to the evaluation of the water uptake in composite materials, since a decreasing trend was evident.

With the thickness tuning from 1 mm to 3 mm, the EAB and absorption peak value of all samples showed a trend of first increasing and then decreasing.

The density of composite ceramics showed a decreasing trend because Zr 2 Al 4 C 5 (4.5 g/cm 2 ) [ 15 ] has a lower density than ZrB 2 (6.09 g/cm 2 ) [ 5 ].

The fracture toughness showed a trend that first increased and then decreased, and was increased by about 30% compared with ZrB 2 -SiC ceramics.

The self-healing efficiency also displays a significant trend with the increasing ratio of PEA and DTPA.

After soaking for 168 h, the solution resistance Rs showed a trend of first increasing and then decreasing with the increase in flow rate.