Influence of lead glass on different properties of lead iron niobate (PFN)

2019 ◽  
Author(s):  
Tanveer Quazi ◽  
Leena Gahane ◽  
Shahin Sayyad ◽  
Kamal Singh
Keyword(s):  
Lead Glass ◽  
Iron Niobate

scholarly journals First insights into the archaeometric analysis of the Los Amores Mosaic in Cástulo (Linares, Spain): the Judgement of Paris

2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Alberto Sánchez ◽  
José Tuñón ◽  
Manuel Montejo ◽  
Pilar Amate ◽  
Bautista Ceprián ◽  
...  
Keyword(s):  
Raw Materials ◽  
Principal Component ◽  
Soda Lime ◽  
Degradation Process ◽  
Lead Glass ◽  
Non Invasive ◽  
Stone Materials ◽  
Data Assessment ◽  
Siliciclastic Rocks ◽  
Judgment Of Paris

AbstractThis paper discusses results obtained from in situ analysis of the tesserae of the Roman mosaic of Los Amores (Cástulo site, Linares, Spain) dating back to the turn of the 1st to the 2nd century AD. Specifically, it focuses on the scene The Judgment of Paris. In view of the exceptional state of preservation of the mosaic, from which very few tesserae had fallen off, non-invasive methods with portable Micro Raman Spectroscopy (MRS) and hand-held X-ray fluorescence (hXRF) and data assessment by use of principal component analysis and binary representations were selected. The results obtained allow to evaluate both the analytical method and the portable equipment used, as well as to classify the raw materials, the colouring agents and the opacifiers used. MRS analysis proved crucial for the identification of stone tesserae (ironstones, carbonate and siliciclastic rocks) and for the identification of the type of glasses used (soda-lime-silicate and lead type glasses) based on the analysis of two detached tesserae. hXRF analysis of the glass tesserae identified both colouring agents (Co, Cu, Pb, Zn) and opacifiers (calcium antimonate). The data obtained lend themselves to an assessment of the degradation process that threaten the integrity of the mosaic. The identification of tessera made of specific stone materials (especially ironstone) and of lead glass tesserae suggest the existence of a mosaic workshop in the Upper Guadalquivir (Eastern Andalusia, Spain).

The identification of high‐lead glass using simple methods

1998 ◽  
Vol 22 (1) ◽  
pp. 12-16
Author(s):  
Gerhard Eggert
Keyword(s):  
Lead Glass ◽  
High Lead

Phase transitions in disordered lead iron niobate: X-ray and synchrotron radiation diffraction experiments

1997 ◽  
Vol 102 (5) ◽  
pp. 347-352 ◽  
Author(s):  
Vincent Bonny ◽  
Michel Bonin ◽  
Philippe Sciau ◽  
Kurt J. Schenk ◽  
Gervais Chapuis
Keyword(s):  
Phase Transitions ◽  
Synchrotron Radiation ◽  
X Ray ◽  
Synchrotron Radiation Diffraction ◽  
Iron Niobate

Local Irradiation of Mouse Tooth Germ Gives Insight into the Direct Effects of Irradiation on Root Development

2021 ◽  
Author(s):  
Yoshiaki Ide ◽  
Taka Nakahara ◽  
Tetsuya Fukada ◽  
Masanori Nasu
Keyword(s):  
Root Development ◽  
Root Formation ◽  
Tooth Germ ◽  
Lead Glass ◽  
Local Irradiation ◽  
Root Sheath ◽  
Calcified Tissue ◽  
Radiation Induced ◽  
Dentin Formation ◽  
Root Apices

To elucidate the mechanism underlying the failure of root formation after irradiation, we established a method of local irradiation of the molar tooth germ and demonstrated that radiation directly affected dental root development. In the current study, to locally irradiate the lower first molars of 5-day-old C57BL/6J mice, we used lead glass containing a hole as a collimator. We confirmed that our local irradiation method targeted only the tooth germ. The irradiated root was immature in terms of apical growth, and dentin formation was irregular along the outside of the root apices. Moreover, calcified tissue apically surrounded Hertwig's epithelial root sheath, which disappeared abnormally early. This method using a local irradiation experimental model will facilitate research into radiation-induced disorders of dental root formation.

Performance of F101 radiation resistant lead glass shower counters

1996 ◽  
Vol 378 (1-2) ◽  
pp. 155-161 ◽  
Author(s):  
H. Avakian ◽  
N. Bianchi ◽  
G.P. Capitani ◽  
E. De Sanctis ◽  
A. Fantoni ◽  
...  
Keyword(s):  
Lead Glass ◽  
Radiation Resistant

Total Absorption Lead Glass Čerenkov Counter

1961 ◽  
Vol 32 (8) ◽  
pp. 949-952 ◽  
Author(s):  
G. Gatti ◽  
G. Giacomelli ◽  
W. A. Love ◽  
W. C. Middelkoop ◽  
T. Yamagata
Keyword(s):  
Lead Glass ◽  
Total Absorption ◽  
Cerenkov Counter

Phase Evolution and Dielectric Properties of Barium Zirconate Titanate – Barium Iron Niobate Ceramics

2011 ◽  
Vol 416 (1) ◽  
pp. 1-7
Author(s):  
Uraiwan Intatha ◽  
Haswipa Maimon ◽  
Sukum Eitssayeam ◽  
Tawee Tunkasiri ◽  
Gannaga Satittada
Keyword(s):  
Dielectric Properties ◽  
Phase Evolution ◽  
Barium Zirconate ◽  
Barium Zirconate Titanate ◽  
Zirconate Titanate ◽  
Iron Niobate
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