Heat treatment is an important tech

Heat treatment is an important technique for improving the color and clarity of gemstones. This project presents heat treatment of red spinel from …ประเทศ….. Step-heating experiments were performed under oxidizing atmosphere with different temperatures including 400, 500 and 600oC. The color of samples was changed from brown into blue color after heat treatment performed. The unheated and heated samples were examined UV-Vis NIR, FTIR spectroscopy, Raman spectroscopy and EDXRF spectroscopy. Causes of color and its changing are obviously observed from UV-VIS-NIR absorption spectra and trace elements from EDXRF analysis. The blue color originated from V2+ absorption band which exhibited at ….. nm. Since FTIR spectra of both unheated and heated samples showed same feature absorption spectra, the spectra cannot use for identification of heated gemstone. Raman spectra showed peak shifts which may relate the change of chemical bond in gem’s structure.

ผลลัพธ์ (อังกฤษ) 1:

Heat treatment is an important technique for improving the color and clarity of gemstones heat treatment of This project presents. red spinel from Step-heating experiments were performed ... the country ..... under oxidizing atmosphere with different temperatures including 400, 500 and The color of 600oC. samples was changed into blue color from brown after The heat treatment performed were heated and unheated samples. the examined UV-Vis NIR spectroscopy and FTIR spectroscopy, Raman, EDXRF and its Causes of color spectroscopy. changing absorption spectra are obviously observed from UV-VIS-NIR and trace elements from The EDXRF analysis. the blue color band which originated from V2 + exhibited absorption at FTIR spectra of ..... nm. Since both heated and unheated samples showed absorption spectra, the same spectra feature cannot use for identification of Raman spectra showed peak heated gemstone. shifts which may relate in the change of chemical bond. gem's structure.

ผลลัพธ์ (อังกฤษ) 2:

Heat treatment is an important technique for improving the color and clarity of gemstones. This project presents heat treatment of red spinel from ... countries ... .. Step-heating experiments were performed under oxidizing atmosphere with different temperatures including 400, 500 and 600oC. The color. of samples was changed from brown into blue color after heat treatment performed. The unheated and heated samples were examined UV-Vis NIR, FTIR spectroscopy, Raman spectroscopy and EDXRF spectroscopy. Causes of color and its changing are obviously observed from UV-VIS-NIR. absorption spectra and trace elements from EDXRF analysis. The blue color originated from V2 + absorption band which exhibited at ... .. nm. Since FTIR spectra of both unheated and heated samples showed same feature absorption spectra, the spectra can not use for identification of heated gemstone. Raman spectra showed peak shifts which may relate the change of chemical bond in gem's structure.

ผลลัพธ์ (อังกฤษ) 3:

Heat treatment is an important technique for improving the color and clarity of gemstones. This project presents heat treatment. Of red spinel from... Country..... Step-heating experiments were performed under oxidizing atmosphere with different temperatures. Including 400 500 and, 600oC. The color of samples was changed from brown into blue color after heat treatment performed.The unheated and heated samples were examined, UV-Vis NIR FTIR spectroscopy Raman spectroscopy, and EDXRF spectroscopy.? Causes of color and its changing are obviously observed from UV-VIS-NIR absorption spectra and trace elements from EDXRF. Analysis. The blue color originated from V2 absorption band which exhibited at..... Nm.Since FTIR spectra of both unheated and heated samples showed same feature, absorption spectra the spectra cannot use for. Identification of heated gemstone. Raman spectra showed peak shifts which may relate the change of chemical bond in gem s. ' Structure.