Chemical composition of glass beads of the Merovingian period from graveyards in the Black Forest, GermanyFT-IR spectroscopyemissionphotoexcitationrhodamine 6Gaqueous solutionthin filmWhite, orange, green and brown glass beads from women's burial places of the Merovingian period were scientifically ...
摘要: The type of glass defects was classified , the features of the glass defect was illustrated and the procedures for chemical composition analysis was also described in this article .Some typical chemical composition results of glass defects were listed ....
The Hetian Bizili site in Lop County, located on the southern route of the Silk Road in Xinjiang, China, was a trade and cultural hub between the East and the West in ancient times. In 2016, a large number of glass beads were unearthed from the 40 tombs excavated on this site. In ...
Provided is a glass composition suitable for production using large-scale sheet glass mass production facilities by the float process or the like, having high heat resistance, and suitable for chemical strengthening. Specifically, provided is a glass composition containing, in mass%: 60 to 66% SiO...
美 英 un.化学组成;化学成分;化学成份 英汉 un. 1. 化学组成 2. 化学成分 3. 化学成份 例句 更多例句筛选
Chemical analyses and archaeometry of these glasses are of special interest due to both the scarcity of 18th century stained glass window production and to the particular orange colour of several glass pieces. Chemical degradation of glasses has been deduced from their composition and conservation ...
O; and 3-9% CaO, the composition furthermore containing less 1% of impurities (AI2O3, Fe2O3, Cr2O3, TiO2, MgO, SrO, BaO and P2O5) and being free of F. The invention also relates to the glass yarns obtained from this composition and to composites based on an organic or ...
Provided is a process for etching glass objects by chemical treatment. The process includes (a) at least one stage of chemical treatment of the object, and (b) at least one stage of rinsing the objects etched by the treatment of step (a) with an aqueous solution of one or more alkali ...
Table 3 Summary of the alleged inorganic composition of the three reconstructedMedicamenta tria Full size table The need for no less than 16 ovens at first sight draws a picture of a large production of quite refractory compounds like inorganic Paracelsian compounds. But the use of some of the...
and was elaborated in a way technologically more sophisticated (it is a plaque glass, with a red Cu-rich layer sandwiched between a white transparent Cu-poor glass similar in composition).While Na-rich glasses are mostly unaltered, K-rich ones show moderate corrosion and partial loss of transpa...