New Probe for Porcelain Glazes by Luminescence at Near-Infrared Excitation.

New Probe for Porcelain Glazes by Luminescence at Near-Infrared Excitation.
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新型近红外激发发光陶瓷釉探针。

DOI:
10.1021/acsomega.1c00322
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发表时间:
2021-03-23
期刊:
影响因子:
4.1
通讯作者:
Unno M
Unno M
中科院分区:
化学3区
文献类型:
--
作者:
Kamura S;Tani T;Matsuo H;Onaka Y;Fujisawa T;Unno M

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拉曼光谱是一种强大的技术,适用于包括瓷器在内的各种材料,而近红外激发通常用于抑制样品中的荧光背景。当我们在785 nm激发下测量陶瓷的拉曼光谱时,我们在高频区域观察到了一个很强的宽带,其来源尚不清楚。在这项研究中,我们测量了釉瓷在532,785和1064 nm激发下的光谱,证明了这一广泛的特征来自于880 nm附近的发光,而不是来自拉曼散射。我们提供的实验证据表明,该带起源于一层薄薄的釉面。由于发光带的形状取决于加工温度,因此发光光谱可以作为研究釉的玻璃形成过程的无损探头。
Raman spectroscopy is a powerful technique for a wide range of materials, including porcelain, and near-infrared excitation is often used to suppress a fluorescence background from a sample. When we measured the Raman spectra of porcelains at 785 nm excitation, we observed a strong broad band in a high-frequency region, and its origin was not clearly elucidated. In this study, we have measured the spectra of glazed porcelains at 532, 785, and 1064 nm excitation and demonstrated that the broad feature originates from luminescence around 880 nm and not from Raman scattering. We provide experimental evidence showing that the band originates from a thin layer of glaze. Since the band shape depends on the processing temperature, the luminescence spectra can be a nondestructive probe for studying the glass formation of a glaze.
DOI: 10.1016/j.ceramint.2017.07.172
发表时间: 2017-11-01
影响因子: 5.2
作者:
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