Search Results - "Martinelli, J. R"

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  1. 1

    Energy transfer and frequency upconversion in Yb3+–Er3+-doped PbO-GeO2 glass containing silver nanoparticles by Kassab, L. R. P., Bomfim, F. A., Martinelli, J. R., Wetter, N. U., Neto, J. J., de Araújo, Cid B.

    Published in Applied physics. B, Lasers and optics (01-02-2009)
    “…We report the infrared-to-visible frequency upconversion in Er 3+ –Yb 3+ -codoped PbO-GeO 2 glass containing silver nanoparticles (NPs). The optical excitation…”
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    Journal Article
  2. 2

    Micropush-out dentine bond strength of a new gutta-percha and niobium phosphate glass composite by Carvalho, C. N., Martinelli, J. R., Bauer, J., Haapasalo, M., Shen, Y., Bradaschia-Correa, V., Manso, A. P., Gavini, G.

    Published in International endodontic journal (01-05-2015)
    “…Aim To characterize an experimental gutta‐percha and niobium phosphate glass composite (GNB) applied with a thermoplastic technique to the root canals without…”
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    Journal Article
  3. 3

    Synthesis and characterization of niobium phosphate glasses containing barium and potassium by Sene, F.F., Martinelli, J.R., L.Gomes

    Published in Journal of non-crystalline solids (15-11-2004)
    “…The structural characteristics of phosphate glasses containing different amounts of Nb were investigated by X-ray diffraction, thermal analysis, Raman, and…”
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    Journal Article Conference Proceeding
  4. 4

    Infrared-to-visible upconversion in Yb3+/Er3+ co-doped PbO-GeO2 glass with silver nanoparticles by BOMFIM, F. A, MARTINELLI, J. R, KASSAB, L. R. P, ASSUMPCAO, T. A. A, DE ARAUJO, C. B

    Published in Journal of non-crystalline solids (01-10-2010)
    “…Enhanced frequency upconversion (UC) emission was studied in Yb3+/Er3+ co-doped PbO-GeO2 glass containing silver nanoparticles (NPs). Optical excitation was…”
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    Conference Proceeding Journal Article
  5. 5

    Optical and structural characterization of rare earth doped niobium phosphate glasses by Sene, F.F., Martinelli, J.R., Gomes, L.

    Published in Journal of non-crystalline solids (15-11-2004)
    “…Phosphate glasses containing up to 45mol% of niobium were obtained. X-ray diffraction, infrared, Raman, and optical absorption spectroscopy were used to…”
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    Journal Article Conference Proceeding
  6. 6

    Influence of the temperature on the nucleation of silver nanoparticles in Tm3+/Yb3+ codoped PbO-GeO2 glasses by DE ASSUMPCAO, T. A. A, DA SILVA, D. M, KASSAB, L. R. P, MARTINELLI, J. R, DE ARAUJO, C. B

    Published in Journal of non-crystalline solids (01-10-2010)
    “…The influence of the temperature on the nucleation of silver nanoparticles (NPs) in Tm3+/Yb3+ codoped PbO-GeO2 glasses was studied in this work. The…”
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    Conference Proceeding Journal Article
  7. 7

    novel method to produce niobium phosphate glasses by microwave heating by Ghussn, L, Martinelli, J. R

    Published in Journal of materials science (15-02-2004)
    “…Niobium phosphate glasses were produced by microwave heating mixtures of Nb₂O₅, (NH₄)₂HPO₄, KOH, PbO, and BaCO₃. Not all tried compositions were melted during…”
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    Journal Article
  8. 8

    Optical properties of manganese in barium phosphate glasses by Machado, I.E.C., Prado, L., Gomes, L., Prison, J.M., Martinelli, J.R.

    Published in Journal of non-crystalline solids (15-11-2004)
    “…Spectroscopic studies of optical properties of manganese ions in barium phosphate glasses prepared by adding 1–20mol% of Mn2O3 in the glass composition were…”
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    Journal Article Conference Proceeding
  9. 9

    Synthesis and characterization of glass–ceramic microspheres for thermotherapy by Martinelli, J.R., Sene, F.F., Kamikawachi, C.N., Partiti, C.S. de M., Cornejo, D.R.

    Published in Journal of non-crystalline solids (01-10-2010)
    “…Glass microspheres containing radionuclides are used to treat liver cancer. A promising alternative therapy is being developed based on the magnetic…”
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    Journal Article Conference Proceeding
  10. 10

    Structural features of lead iron phosphate glasses by Reis, S.T., Faria, D.L.A., Martinelli, J.R., Pontuschka, W.M., Day, D.E., Partiti, C.S.M.

    Published in Journal of non-crystalline solids (01-06-2002)
    “…Lead iron–phosphate glasses were investigated for use as wasteform because of their improved chemical durability. There is a controversy if lead should or…”
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    Journal Article Conference Proceeding
  11. 11

    Comparative analyses of ion release, pH and multispecies biofilm formation between conventional and bioactive gutta-percha by Carvalho, C. N., Wang, Z., Shen, Y., Gavini, G., Martinelli, J. R., Manso, A., Haapasalo, M.

    Published in International endodontic journal (01-11-2016)
    “…Aim To analyse the effect of commercial and experimental gutta‐percha with the addition of niobium phosphate glass on biofilm formation by oral bacteria from…”
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    Journal Article
  12. 12

    Dielectric properties of barium phosphate glasses doped with transition metal oxides by Bergo, P., Pontuschka, W.M., Prison, J.M., C.C. Motta, Martinelli, J.R.

    Published in Journal of non-crystalline solids (15-11-2004)
    “…The effect of addition of small amounts of the transition metal (TM) ions of Co, Fe and Mn to the composition of barium phosphate glasses on the dielectric…”
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    Journal Article Conference Proceeding
  13. 13

    Extraction of molybdenum from spent NiMo hydrocracking catalysts assisted by ionizing radiation by Kondo, F.M., Duarte, C.L., Somessari, S.L., Sato, M.I., Salvador, V.L.R., Lima, N.B., Martinelli, J.R., Calvo, W.A.P.

    “…A catalyst is a substance that changes the rate of a reaction. In the petroleum industry, the catalysts are commonly used for fluid catalytic cracking and…”
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    Journal Article
  14. 14

    Evaluation of aluminosilicate glass sintering during differential scanning calorimetry by Souza, J.P., Martinelli, J.R.

    Published in Ceramics international (01-07-2015)
    “…The aim of this work is to investigate a difference in heat flow observed in the differential scanning calorimetry curves when aluminosilicate glasses are…”
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    Journal Article
  15. 15

    Study of colloidal phosphorus in barium phosphate glasses by gas chromatography and SAXS by Prison, J.M., Martinelli, J.R.

    Published in Journal of non-crystalline solids (01-03-2004)
    “…Barium phosphate glasses were obtained by melting different precursors in oxidizing or reducing atmospheres. These glasses become orange–red after a heat…”
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    Journal Article
  16. 16

    Electrical resistivity of ceramic–metal composite materials: application in crucibles for induction furnaces by Martinelli, J.R., Sene, F.F.

    Published in Ceramics international (01-04-2000)
    “…A study was conducted of the electrical properties of partially-stabilized zirconia ceramic matrix composites with 0 to 40 vol% of titanium, niobium, nickel,…”
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    Journal Article
  17. 17

    Titanium nitride: a key to process metallic uranium by de Vasconcelos, G., Dacal, L. C. O., Sbampato, M. E., Rodrigues, N. A. S., Martinelli, J. R.

    Published in Physica status solidi. A, Applied research (01-08-2004)
    “…Metallic uranium is very reactive at the high temperatures used for its processing [1]; therefore special refractory crucibles must be employed. This work…”
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    Journal Article Conference Proceeding
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    Cs immobilization by sintered lead iron phosphate glasses by Reis, S.T, Martinelli, J.R

    Published in Journal of non-crystalline solids (01-01-1999)
    “…Lead iron phosphate glass frits were obtained from a mixture of NH 4H 2PO 4, PbO and Fe 2O 3 melted in an induction furnace. After milling, the material was…”
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    Journal Article Conference Proceeding
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