TITLE

Radiation effects on phase separation and viscosity in a B2O3-PbO glass

AUTHOR(S)
Biron, Isabelle; Barbu, Alain
PUB. DATE
June 1986
SOURCE
Applied Physics Letters;6/16/1986, Vol. 48 Issue 24, p1645
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Taking into account the temperature rise under the electron beam, phase separation in a supersaturated B2O3-PbO glass is shown to be enhanced by electron irradiation. Coagulation of PbO-rich particles is observed during in situ electron microscopic experiments. This mechanism of coalescence is discussed. Using the Smoluchowski model of coagulation we show that the glass viscosity is drastically lowered: typically eight to nine orders of magnitude at 270 °C and only one order at 420 °C. This effect is shown to disappear almost instantaneously when irradiation is stopped.
ACCESSION #
9820129

 

Related Articles

  • Dielectric Dispersion in PbO-Bi2O3-B2O3 Glasses Mixed with TiO2. RAO, P. Venkateswara; REDDY, Srinivasa; KUMAR, V. Ravi; GANDHI, Y.; VEERAIAH, N. // Turkish Journal of Physics;2008, Vol. 32 Issue 6, p341 

    [(PbO)0.20-x(Bi2O3)0.40(B2O3)0.40]:(TiO2) x, 0.0 ≤ x ≤ 0.02 glasses were prepared. Dielectric properties (dielectric constant ε', loss tan δ and a.c., conductivity σac, over a wide range of frequency and temperature), optical absorption, ESR and IR spectra of these glass...

  • Sol-Gel synthesis and optical characterization of Lead-Silicate nanocomposite monolithic xerogels. Mythili, N.; Arulmozhi, K. T. // International Journal of ChemTech Research;May/Jun2014, Vol. 6 Issue 3, p2032 

    Nanocomposite binary systems of PbO-SiO2 monolithic xerogels were synthesized via sol-gel method. TG-DTA, FT-IR, UV-DRS and solid PL techniques were used to characterize the nanocomposite xerogels. The results indicated lower defect levels arising due to oxygen vacancies and interstitial...

  • Investigation of Gamma and Neutron Shielding Parameters for Borate Glasses Containing NiO and PbO. Singh, Vishwanath P.; Badiger, N.M. // Physics Research International;2014, p1 

    The mass attenuation coefficients, μ/ρ, half-value layer, HVL, tenth-value layer, TVL, effective atomic numbers, ZIPeff, and effective electron densities, Ne,eff, of borate glass sample systems of (100-x-y) Na2B4O7 : xPbO : yNiO (where x and y = 0, 2, 4, 6, 8, and 10 weight percentage)...

  • Nonuniform bulk second-order optical nonlinearity in PbO/B[sub 2]O[sub 3] glass. Xu, Zhiling; Liu, Liying; Fei, Yue; Yang, Peng; Hou, Zhanjia; Xu, Lei; Wang, Wencheng; Lim, Jong Wook; Affatigato, Mario; Feller, Steve // Applied Physics Letters;7/3/2000, Vol. 77 Issue 1 

    Second-order nonlinearity (SON) of thermally poled PbO/B[sub 2]O[sub 3] glass was investigated. The SON distribution within the glass was obtained by repeatedly grinding the poled glass and measuring its Maker fringes. After grinding away up to one third of the thickness of the poled sample,...

  • The Effect of Bivalent Cations on the Physicochemical Properties and Structure of Borosilicate Glasses. Levitskii, I. A.; Gailevich, S. A.; Shimchik, I. S. // Glass & Ceramics;Mar/Apr2004, Vol. 61 Issue 3/4, p73 

    The effect of modifier oxides (MgO, CaO, SrO, BaO, and ZnO) introduced instead of SiO2 into borosilicate glass on glass properties is investigated. It is established that the physicochemical properties (TCLE, softening temperature, mircohardness, density, water resistance) of glasses are...

  • Morphology of femtosecond-laser-ablated borosilicate glass surfaces. Ben-Yakar, Adela; Byer, Robert L.; Harkin, Anthony; Ashmore, Jacqueline; Stone, Howard A.; Shen, Mengyan; Mazur, Eric // Applied Physics Letters;10/13/2003, Vol. 83 Issue 15, p3030 

    We study the morphology of borosilicate glass surface machined by femtosecond laser pulses. Our observations show that a thin rim is formed around ablated craters after a single laser pulse. When multiple laser pulses are overlapped, the crater rims also overlap and produce a surface roughness....

  • BORON.  // American Ceramic Society Bulletin;Aug2007, Vol. 86 Issue 8, p22 

    The article reports that boron minerals and chemicals were consumed in the North Central and the Eastern U.S. Data show that approximately 70 percent of the boron compounds consumed in the U.S. in 2005 were in the manufacture of glass and ceramics. The country is considered as the world's...

  • Thermal and optical properties of PbO-KF glasses. Nachimuthu, P.; Jagannathan, R. // Journal of Applied Physics;12/15/1995, Vol. 78 Issue 12, p7323 

    Presents information on a study which examined the glass formation between PbO and KF systems. Influence of composition on thermal stability, density, molar volume, and optical band gap; Experimental details; Results and discussion; Conclusions.

  • Ultrafast nonlinearity of antimony polyphosphate glasses. Falcão Filho, F. L.; Bosco, C. A. C.; Maciel, G. S.; de Araüjo, Cid B.; Acioli, L. H.; Nalin, M.; Messaddeq, Y. // Applied Physics Letters;8/18/2003, Vol. 83 Issue 7, p1292 

    We report on the ultrafast nonlinearity of antimony polyphosphate glasses measured using the Kerr shutter technique. The nonlinear refractive index, n[sub 2], was (1.1±0.2)×10[sup -14] cm[sup 2]/W at 800 nm, and enhancement of n[sub 2] by ≈80% was observed by adding 10% of lead...

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics