Digital processing of SEM images for the assessment of evaluation indexes of cleaning interventions on Pentelic marble surfaces
Digital processing of SEM images for the assessment of evaluation indexes of cleaning interventions on Pentelic marble surfaces
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用于评估 Pentelic 大理石表面清洁干预评价指标的 SEM 图像数字处理
DOI：
10.1016/j.matchar.2007.04.021
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发表时间：
2007
影响因子：
4.7
通讯作者：
E. Karaviti
中科院分区：
文献类型：
--
作者：
A. Moropoulou;E. Delegou;V. Vlahakis;E. Karaviti
在这项工作中，对扫描电子显微镜图像进行了数字处理，以评估对希腊雅典国家考古博物馆和国家图书馆的五旬节大理石表面进行的清洁干预。除了用扫描电子显微镜和能量色散X射线能谱进行矿物学和化学表征外，还利用图像分析程序EDGE对大理岩微结构的三个评价指标进行了估算。EDGE计划由美国地质调查局开发，用于评估费城市政厅的清洁干预措施。该计算机程序分析石材横截面标本的扫描电子显微镜图像，以测量石材裸露表面的分维、石材近表面的断裂密度、形状因子(表面粗糙度系数)和代表石材表面物理化学和物理机械稳定性的脆性指数。结果表明，本文提出的指标可以对大理石表面清洗前后的微观结构进行评价，也可以对大理石表面清洗干预措施的效果进行评价。
In this work, digital processing of scanning-electron-microscopy images utilized to assess cleaning interventions applied on the Pentelic marble surfaces of the National Archaeological Museum and National Library in Athens, Greece. Beside mineralogical and chemical characterization that took place by scanning-electron-microscopy with Energy Dispersive X-ray Spectroscopy, the image-analysis program EDGE was applied for estimating three evaluation indexes of the marble micro-structure. The EDGE program was developed by the U.S. Geological Survey for the evaluation of cleaning interventions applied on Philadelphia City Hall. This computer program analyzes scanning-electron-microscopy images of stone specimens cut in cross-section for measuring the fractal dimension of the exposed surfaces, the stone near-surface fracture density, the shape factor (a surface roughness factor) and the friability index which represents the physico-chemical and physico-mechanical stability of the stone surface. The results indicated that the evaluation of the marble surface micro-structure before and after cleaning is achieved by the suggested indexes, while the performance of cleaning interventions on the marble surfaces can be assessed.