Webcrystallinity variable x, which evolves from 0 for an amorphous material to a maximum crystallinity x max, specific to the semi-crystalline polymer considered. The degree of crystallization α is also defined as the degree of advancement of the transformation and thus varies from 0 (when x=0) to 1 (when x=x max WebJan 3, 2024 · The degree of crystallinity of the AlN films was calculated by the Eq. as explained in the previous Sect. 4.2. It was found that the degree of crystallinity increases with the film thickness. Figure 7a showed the degree of crystallinity for S1, S2, S3 and S4 were 61%, 67%, 92% and 97%, respectively. The crystallite sizes of the AlN layers were ...
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WebMay 26, 2024 · Table 4 presents crystallinity index values of the dyed fabrics. The crystallinity index could be calculated for every fabric. It is clearly seen that crystallinity index is coherent to the elongation at break of yarns or fabrics (see Figure 8 and Figure 10). Higher crystallinity index corresponds to lower elongation at break values. WebJan 1, 2024 · Based on four equivalent monomer units per unit cell, the crystalline density is calculated at 1.378 ± 0.005 g. − 3 and the amorphous density for quenched PEEK is measured as 1.262 ± 0.001 g. − 3. The density increases linearly with the crystalline rate between these two values. did anyone ever win publishers clearing house
A revised solid-state NMR method to assess the crystallinity of ...
Webequation [1,2]: f(α) = αm (1-α)n (2) where m and n are reaction order constants. The general rate equation (1) and the SB equation (2) are closely related. The general rate equation may be thought of as a simplified case of the SB equation where m is equal to zero. This is aesthetically satisfying to many practitioners WebJan 8, 2024 · According to Equation (8), at a given degree of crystallinity the plot of ln ϕ against ln t should yield a straight line with an intercept of ln F (T) and a slope of—α. Figure 10 shows the plots of neat PLA and its nanocomposites at … WebMar 11, 2024 · Nevertheless, as compared with the “empty” V 6h-type HAMS, both 2:1 and 5:1 V 6h ICs experienced lower crystallinity, especially the 2:1 V 6h IC sample, which had a significantly lower crystallinity compared to the “empty” V 6h starch (p < 0.05). The lowered crystallinity could arise from the loss of water molecules that stabilize the ... did anyone ever play the lyre in the bible