scholarly journals Synthesis, structure, and superconductivity of B-site doped perovskite bismuth lead oxide with indium

2020 ◽  
Vol 7 (19) ◽  
pp. 3561-3570 ◽  
Author(s):  
Xiande Zheng ◽  
Lei Zhang ◽  
Xiaoge Wang ◽  
Yiguo Qing ◽  
Jie Chen ◽  
...  
Keyword(s):  
Lead Oxide ◽  
Bismuth Lead

The synthesis of Ba(Bi0.25Pb0.75)1−xInxO3−δ superconductors provides an example with indium located in the B site with a decreasing Tzeroc due to hole overdoping.

Emissions of 1.20 and 1.38μm from Ho3+-doped lithium–barium–bismuth–lead oxide glass for optical amplifications

2011 ◽  
Vol 357 (11-13) ◽  
pp. 2468-2471 ◽  
Author(s):  
Bo Zhou ◽  
Dianlai Yang ◽  
Hai Lin ◽  
Edwin Yue-Bun Pun
Keyword(s):  
Lead Oxide ◽  
Oxide Glass ◽  
Barium Bismuth ◽  
Bismuth Lead

Improved mechanical properties of bismuth lead oxide

1994 ◽  
Vol 13 (19) ◽  
pp. 1395-1396 ◽  
Author(s):  
N. M. Sammes ◽  
M. G. Fee ◽  
R. J. Phillips ◽  
R. Ratnaraj
Keyword(s):  
Mechanical Properties ◽  
Lead Oxide ◽  
Bismuth Lead

Characterization of bismuth lead oxide by vibrational spectroscopy

1995 ◽  
Vol 30 (17) ◽  
pp. 4299-4308 ◽  
Author(s):  
N. M. Sammes ◽  
G. Tompsett ◽  
A. M. Cartner
Keyword(s):  
Vibrational Spectroscopy ◽  
Lead Oxide ◽  
Bismuth Lead

scholarly journals Bismuth-lead oxide, a new highly conductive oxygen materials

1983 ◽  
Vol 9-10 ◽  
pp. 921-924 ◽  
Author(s):  
F Honnart ◽  
J.C Boivin ◽  
D Thomas ◽  
K.J De Vries
Keyword(s):  
Lead Oxide ◽  
Bismuth Lead

CERROBASE Alloy

Alloy Digest ◽  
1979 ◽  
Vol 28 (4) ◽  
Keyword(s):  
Liquid Metal ◽  
Eutectic Alloy ◽  
Slow Growth ◽  
Heat Treating ◽  
Metal Bath ◽  
Drop Hammer ◽  
Industrial Material ◽  
Liquid Metal Bath ◽  
Metal Products ◽  
Bismuth Lead

Abstract CERROBASE Alloy is a bismuth-lead eutectic alloy that melts at 255 F (124 C). It is characterized by initial shrinkage followed by slow growth. Its low melting temperature and/or growth-shrinkage characteristics make it a useful industrial material. Among many applications, it is used for (1) anchoring inserts in wood, metal or plastics, (2) drop-hammer dies, (3) duplicate patterns in pottery and foundry, and (4) liquid metal bath for heat treating. This datasheet provides information on composition, physical properties, hardness, and tensile properties. It also includes information on casting, forming, heat treating, and machining. Filing Code: Bi-11. Producer or source: Cerro Metal Products.

Study on the Effect of the addition of Synthesized Nano scale Lead Oxide for Concrete Samples used in Gamma-Ray Shielding

2020 ◽  
Vol 4 (6) ◽  
pp. 1-5
Author(s):  
Bahaa Moharram ◽  
M. Shaat ◽  
M. Nagy ◽  
Ayman El Sayed ◽  
Samy Dwidar ◽  
...  
Keyword(s):  
Lead Oxide ◽  
Gamma Ray ◽  
Nano Scale

Simultaneous determination of ultra-trace Pt, Pd, Rh and Ir in geochemical samples by inductively coupled plasma mass spectrometry following tin fire assay preconcentration and microwave digestion

2020 ◽  
Vol 16 ◽  
Author(s):  
Wenshan Ni ◽  
Xiangju Mao ◽  
Hongli Zhang ◽  
Lu Liu ◽  
Xiaorui Guo ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Nickel Oxide ◽  
Inductively Coupled Plasma ◽  
Lead Oxide ◽  
Microwave Digestion ◽  
Fire Assay ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry ◽  
Ultra Trace

Background: Platinum (Pt), palladium (Pd), rhodium (Rh) and iridium (Ir) are platinum group elements (PGEs) and also important elements of geochemistry and environmental chemistry with the similar physic-chemical properties, which have been widely used in industry and laboratory. However, due to the low abundance and inhomogeneous distribution in natural ore as well as the nugget effect, the accurate determination of PGEs has been a challenge to analytical chemistry. Methods: In this work, a novel fire assay method was reported for the determination of ultra-trace Pt, Pd, Rh and Ir in geochemical samples. Tin powder (Sn) instead of stannic oxide (SnO2) was used as fire assay collector to reduce the melting temperature from 1250 oC to 1050 oC, the escape of molten material caused by high temperature was successfully avoided. Tin bead was compressed into thin slice and dissolved by HCl. For the target Pt, Pd, Rh and Ir, HCl insoluble substance such as PtSn4, PdSn4, RhSn4 and Ir3Sn7 were formed and separated from matrix by filtering. The metal compounds precipitate together with filter paper were microwave-assisted completely digested by aqua regia (50%, v/v), thence the sample solution were determined by inductively coupled plasma mass spectrometry (ICP-MS). Results: Compared with nickel oxide and lead oxide in nickel sulfide /lead fire assay, the reagent blank of tin powder were relatively low and could be directly employed in tin fire assay to collect Pt, Pd, Rh and Ir without purifying. Moreover, the harm of nickel oxide and lead oxide to the analyst and environment was avoided by using the non-toxic tin powder. The decomposition method of chromite and black shale were investigated as well as the amount of tin powder and flour, microwave digestion program for the determination of Pt, Pd, Rh and Ir were optimized. Besides, the influence of mass spectrum interference of co-existing elements was discussed and the standard mode and kinetic energy discrimination collision pool mode were compared. Under the optimal conditions, excellent curve fitting of Pt, Pd, Rh and Ir were obtained between 0.01～100 ng mL-1 , with the correlation coefficients exceeding 0.9996. The detection limits were from 0.003 ng g -1 to 0.057 ng g -1 . Conclusion: The developed method was applied to analyze the Chinese Certified Reference Materials and the determined values were in good agreement with the certified values.

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