Choosing A 2 Carat Lab-Created Diamond Lab-created diamonds have grown in popularity to the point where they are now available from most retailers, including De Beers, the company that founded the diamond engagement ring industry. The stigma that once surrounded these diamonds has dissipated, and...
The bands corresponding to aromatic ring and functional groups located in the range 1500–1400 cm−1−1 and 1350–1200 cm−1−1, respectively, were screened by the C-H vibration mode of PEG. Although a change in form and intensity with respect to TiO22–PEG is evident, this ...
Table 1. Water content of the ionic liquids under investigation. 1H NMR (400 MHz), 13C NMR, 31P, and 19F (100.6 MHz) spectra were recorded on a DRX 400 MHz spectrometer. The chemical shifts (δ) are given in ppm and referenced to the internal solvent signals, namely TMS (tetramethyl...
Under the low-load condition, only slight cracking damage is induced by the nanoscratch tests. Apart from the incipient radial cracking produced in the 3Al2O3∙2SiO2 film by the normal applied force, it may be that the coated system behaves as a structural unit under the low load regime...