Publicações

Hartmann, L. A.; Philipp, R P; Liu, D Y; Wan, Y S; Wang, Y G; Santos, J O S; Vasconcellos, Marcos Antonio Zen. Paleoproterozoic magmatic provenance of detrital zircons, porongos complex quartzites, southern Brazilian shield. International Geology Review, Estados Unidos da America, v. 46, n. 2, p. 127-157, 2004.

Vasconcellos, M.A.Z.. Giuriatti, G.(IC); Hartmann, L.A.; Liu, D. and Phillip, R.P.. Integrated Geochronological and Structural Evaluation of the Significance of Detrital Zircon Crystals from Porongos Complex, Southern Brazilian Shield. . IV South American Symposium on Isotope Geology, Vol 1, 178, 2003

Hartmann, L.A.; Lopes, A.P.; Wang, Y.; Liu, D. and Vasconcellos, M.A.Z.. Oceanic Plateau Accreation at 705 Ma in the Southern Brazilian Shield. IV South American Symposium on Isotope Geology, Vol 1, 178, 2003

Electron microprobe dating of monazite substantiates ages of major geological events in the southern Brazilian Shield.  Hugo Tickyj, Léo A. Hartmann, Marcos A. Z. Vasconcellos, Ruy P. Philipp and Marcus V. D. Remus. Aceito para publicação em Journal of South American Earth Sciences. (2004) (http://authors.elsevier.com/sd/article/S0895981104000100)

Campos, Cristiani Silveira; Vasconcellos, M.A.Z; Llovet, X.; Salvat, F. Measurements of L-shell x-ray production cross sections of W, Pt, and Au by 10–30-keV electrons. Physical Review A - Atomic, Molecular And Optical Physics, v. 012719, 2002.

Campos, C.S; Vasconcellos, M.A.Z.; Llovet, X. and Salvat, F. Determination of thickness of ultra-thin films on Si substrates by EPMA. MICROCHIM ACTA 145 (1-4): 13-17.      2004 .

Moraes, A.R. de; Mosca, D.H.; Silveira, E; Vasconcellos, M. A. Z.;. Mattoso, N.,. Schreiner, W. H, Oliveira A. J. A. Growth and properties of electrodeposited ZnSe-Fe and ZnSe-Co granular films. Journal Of The Electrochemical Society, v. 150, n. 9, p. 625-630, 2003.

VOLKWEIS, Alexandre; MALTZ, Marisa; VASCONCELLOS, Marcos Antonio Zen; COSTA, J. A. T. Borges da. Electron probe microanalysis of in situ root caries. Revista de Pós-Graduação da Faculdade de Odontologia da Universidade de São Paulo, São Paulo, v. 9, n. 4, p. 295-303, 2002.

PAESANO, A; MATSUDA, Ck; CUNHA, Jbm da; VASCONCELLOS, M. A. Z.; HALLOUCHE, B; SILVA, Sl. Synthesis and characterization of Fe-Al2O3 composites. Journal of Magnetism and     Magnetic Materials, USA, v. 264, n. 2-3, p. 264-274, 2003.

Plá Cid, J., Nardi, L.V.S., Enrique, P., Merlet, C., Vasconcellos, M.A.Z. and Boyer, B. Behaviour of La, Ce, Nd and Sr during crystallization of minette magma equilibrated under upper mantle-pressure inferred from apatite, clinopyroxene and mica chemistry. Anais do Encontro Dez anos de Microssonda Eletrônica em Porto Alegre. Editores: Léo Afraneo Hartmann e Marcos A.Z. Vasconcellos. UFRGS. Páginas120 a 123. 15 e 16 de Abril de 2004.

Metallic thin films thickness measurements using electron microprobe. C.S.Campos (D); Enrique Coleoni, Jorge Trincavelli, J. Kaschny, R. Hubbler,  M. R. F. Soares and M. A. Z. Vasconcellos. X-Ray Spectrometry; 30; 253-259, 2001

Ion Beam Analysis of Plasma Nitrided Ti6Al4V-ELI. C.S. Javorsky (D) , T.R. Strohaecker, J.A.T. Borges da Costa and M.A.Z. Vasconcellos. Nuclear Instruments and Methods in Physics Research B 175-177, 726-731, 2001.

Comparative analysis of sulfides for gold using SXRF and SIMS. Ian Steele, Louis J. Cabri, J.C. Gaspar, G. McMahon, MA.Marquez and M.A.Z. Vasconcellos. Canadian Mineralogist 38, 1-10, 2000.

Advances in SHRIMP Geochronology and their impact on understanding the tectonic and metallogenic evolution of Suthern Brazil. Hartman,  L. A.; Leite, J. D.; Silva, L.; Remus, M. V. D.; McNaughton, N. J.; Groves, D. I.; Fletcher, I. R.; Santos, J. O. S.; Vasconcellos, M. A. Z.  Australian Journal Of Earth Sciences , Austrália , 47 , n. 5 , 1 -13 , 2000.

Zircon U-Pb SHRIMP dating of gneissic basement of the Dom Feliciano Belt, southernmost Brazil. Leite, J. D.; Hartmann, L. A.; Fernandes,  L.A.D.; McNaughton, N. J.; Soliani JR, E.; Koester, E.; Santos, J. O. S.; Vasconcellos, M. A. Z. Journal of South American Earth Sciences ,  13 , n. 8 , 739 -750 , 2001.

Ion microprobe (SHRIMP) dates complex granulite from Santa Catarina, southern Brazil. Léo A. Hartmann, João O.S. Santos, Neal J, McNaughton, M.A.Z. Vasconcellos e Luiz C da Silva. An. Acad. Brasi Ci 72 (4) 559-572, 2000.

Cathodoluminescence of Quartz and the Evolution of Pb and Zr Epithermal Vein Systems in the Lago Fontana Region, Argentine Patagonia.C.  Menezes (IC) , A.P. Rolando, L.A. Hartmann, M.A.Z. Vasconcellos and R. Etcheverry. Geochim. Brasil, 13(2), 99-108, 1999.

Kinast, E. J.; Zawislak, L. I.; Cunha, J. B. M.; Antonietti, V.; Vasconcellos, M. A. Z.; Santos, C. A. Coexistence of Rutile and Trirutile Phases in a Natural Tapiolite Sample Journal Of Solid State Chemistry, , v. 163, p. 218-223, 2002

Lima, M. F. S.; Vasconcellos, M. A. Z.; Samios, D. Crystallinity Changes in Plastically Deformed Isotactic Polypropylene Evaluated by X-Ray Diffraction and Differential Scanning Calorimetry Methods Journal Of Polymer Science Part B-Polymer Physics, Estados Unidos, v. 40, p. 896-903, 2002

Castelano, G.; Bonneto, R.; Trincavelli, J. C.; Vasconcellos, M. A. Z.; Campos, C. S. Optimization of K-shell intensity ratios in electron probe microanalysis X-Ray Spectrometry, Estados Unidos, v. 31, n. 2, p. 184-187, 2002

Campos, C. S.; Vasconcellos, M. A. Z.; Llovet, X.; Salvat, F. Measurements of L-shell x-ray production cross sections of W, Pt, and Au by 10-30-keV electrons Physical Review A - Atomic, Molecular And Optical Physics, , v. 012719, 2002

Metallic thin film thickness determination using electron probe microanalysis. C.S. Campos, E.A. Coleoni, J.C. Trincavelli, J. Kaschny, R. Hubbler, M.R.F. Soares and M.A.Z. Vasconcellos. X-Ray Spectrometry, 30, 253:259, 2001.

Ion Beam Analysis of Plasma Nitrided Ti6Al4V-ELI. C.S. Javorsky, T.R. Strohaecker, J.A.T. Borges da Costa and M.A.Z. Vasconcellos. Nuclear Instruments and Methods in Physics Research B 175-177, 726-731, 2001.

Zircon U-Pb SHRIMP dating of gneissic basement of the Dom Feliciano Belt, southernmost Brazil. Leite, J. D.; Hartmann, L. A.; Fernandes, L.A.D.; McNaughton, N. J.; Soliani JR, E.; Koester, E.; Santos, J. O. S.; Vasconcellos, M. A. Z. Journal of South American Earth Sciences , , v. 13 , n. 8 , p. 739 -750 , 2001.

Advances in SHRIMP Geochronology and their impact on understanding the tectonic and metallogenic evolution of Suthern Brazil. Hartman, L. A.; Leite, J. D.; Silva, L.; Remus, M. V. D.; McNaughton, N. J.; Groves, D. I.; Fletcher, I. R.; Santos, J. O. S.; Vasconcellos, M. A. Z. Australian Journal Of Earth Sciences , Austrália , v. 47 , n. 5 , p. 1 -13 , 2000.

Ion Microprobe (SHRIMP) dates complex granulite from Santa Catarina, southern Brazil. Léo A. Hartmann, João O. S. Santos, Neal J. McNaughton, Marcos A.Z. Vasconcellos and Luiz C. da Silva. An. Acad. Bras. Ci. 72(4), 559-572, (2000).

Comparative analysis of sulfides for gold using SXRF and SIMS. Ian Steele, Louis J. Cabri, J.C. Gaspar, G. McMahon, MA.Marquez and M.A.Z. Vasconcellos. The Canadian Mineralogist, 38, 1-10, 2000.

Cathodoluminescence of Quartz and the Evolution of Pb and Zr Epithermal Vein Systems in the Lago Fontana Region, Argentine Patagonia.C. Menezes, A.P. Rolando, L.A. Hartmann, M.A.Z. Vasconcellos and R. Etcheverry. Geochim. Brasil, 13(2), 99-108, 1999

Metallic thin films thickness measurements using electron microprobe. C.S. Campos(D); Enrique Coleoni, Jorge Trincavelli, J. Kaschny, R. Hubbler, M. R. F. Soares and M. A. Z. Vasconcellos. X-Ray Spectrometry, 30, 253-259, 1999.

Evolução magmática e metamórfica de zircões do Complexo Barro Alto (GO), com base em imagens de elétrons retroespalhados e análises químicas por microssonda eletrônica. L. Takehara, L.A.Hartmann, M.A.Z. Vasconcellos e M.T.F. Suita. Revista Brasileira de Geociências, n.3, V29, p1064, 1999.

The Energy dependence on microstructure of (Ti-Al-V) nitrides deposited by dual ion beam sputtering. R. Hübler, E.K. Tendardini, E. Blando, S.R. Teixeira, M.A.Z. Vasconcellos, M. Soares, E. Kamijo and M. Fujiwara. Surface and Coating Technology 116-119, p969-972, 1999.

Fine Euhedral Banding in Zircon - Metamorphic Enhancement of Igneous Structure. Léo A. Hartmann, Marcos A.Z. Vasconcellos, Jayme A. D. Leite & Neal J. McNaughton. Pesquisas, 26 (1) 67-78, 1999.

Chemical Analyses of Zircon in Sequential Sections: An Integrated Electron Microprobe, Backscattering Electron and Cathodoluminescence Image Investigation. Léo A. Hartmann, Marcos A. Z. Vasconcellos & Anabela Porto Rosa. Pesquisas, 26(1) 59-66, 1999.

Near-surface composition and microhardness profile of plasma nitrided H-12 tool steel, E.J. Miola, S.D. Souza, M. Olzon-Dionysio, D. Spinelli, M.R.F. Soares, M.AZ. Vasconcellos, C.A dos Santos, Materials Science and Engineering A256 (1998) 60-68.

Kinetics of ion induced transformations in b-NiAl thin films as characterized by in-situ electrical resistivity measurements, R.M.N.Miranda, M.A.Z. Vasconcellos, M.N.Baibich and J. A .T. Borges da Costa, Physical Review B 58, 5250-5257 (1998).

Depth Dependence of electrical resistivity transformations by ion beams, R.M.N. Miranda, M.A.Z. Vasconcellos, M.N. Baibich and J.A.T. Borges da Costa. Nuclear Instruments and Methods in Physics Research B 127/128, 132-136 (1997).

Fracture sealing in zircon as evaluated by electron microprobe anlyses and back-scattered electron imaging, L.A. Hartmann, L. Takehara, J.A.D. Leite, N.J. McNaughton, M.A.Z. Vasconcellos, Chemical Geology 141, 67-72 (1997).

Effects of Argon irradiation on a plasma nitrided carbon steel. G. Simon, M.A.Z. Vasconcellos and C.A. dos Santos, Surface and Coatings Technology 102 90-96 (1997).

Cathodoluminescence and SXRF study of Natural Zircons: L. Takehara, I.M. Steele and M.A.Z. Vasconcellos, Anais do Encontro da Sociedade Brasileira de Microsocopia, Caxambu, MG (1997).

Zircon Studies on the Electron Microprobe: Some Geochronological Implications, L.A. Hartmann, M.A.Z. Vasconcellos and M.T.F. Suita, Anais do I Workshop em Microssonda Eletrônica, Geochimica Brasiliensis 10 (1) 00 - 00 (1996).

Estudo Integrado de Zircão por Microssonda Eletrônica e Espectrometria de Massa: Conseqüências Geocronológicas, L.A. Hartmann, M.A.Z. Vasconcellos, M.T.F. Suita, Anais do I Workshop em Microssonda Eletrônica, Geochimica Brasiliensis 10 (1) 00 - 00 (1996).

Técnicas de Processamento de Imagens para Segmentação de Fases em Imagens de Microssonda Eletrônica. J.A.T. Borges da Costa, A.M.M. da Silva, C.S. Javorsky, M.R.F. Soares e M.A.Z. Vasconcellos. Anais do I Workshop em Microssonda Eletrônica, Geochimica Brasiliensis, 10 (1) 88 - 91 (1996).

Estudos químicos, físicos e isotópicos em zircões, L.A. Hartmann, M.A.Z. Vasconcellos, J.D. Leite, L. Takehara, M.V.D. Remus, M.T.F. Suita e N.McNaughton, Boletim IG-USP, Publicação Especial n. 18. Memorial Mário Figueredo, Workshop "Geoquímica de Terrenos Pré-Cambrianos", 33-35 (1996).

Anais do I WORKSHOP EM MICROSSONDA ELETRÔNICA, Editores: L.A.Hartmann e M.A.Z. Vasconcellos, Geochimica Brasiliensis 10 (1) (1996).

Cathodoluminescence of Murchison Meteorite: Temperature Dependence and Structural Implications, M.A.Z. Vasconcellos and Ian M. Steele, Proceedings of the Twenty-sixth Lunar Planetary Science Conference, March 14-18, Huston, Texas, USA (1996).

Austenite Formation On Plasma Nitrided Low Carbon Steel, G. Simon, M.A.Z. Vasconcellos and C.A.dos Santos, Il Nuovo Cimiento, Conference Proceedings Vol. 50, ICAME-95, 185-188 (1996).

Structural and Magnetic Behaviour of Ion (Ar+) Implanted Co/Pd Multilayers: Interfacial Mixing, L.F. Schelp, M. Carrara, A.D.C. Viegas, M.A.Z. Vasconcellos and J.E.Schmidt, J.Appl.Phys. 75 (9) 1 (1994).

The formation of intermetallic phases by solid-phase reaction of Fe/Al multilayers, J.L. Alexandre, M.A.Z. Vasconcellos, R. Hubler, S.R. Teixeira and I.J.R. Baumvol, Applied Physics A, A56, 2 113 (1993).

Ion beam mixing of Fe/Al multilayers: a CEMS study, J.L. Alexandre, M.A.Z. Vasconcellos, R. Hubler, S.R. Teixeira and I.J.R. Baumvol, Nuclear Instruments and Methods in Physics Research B, 80/81 436 (1993).

On the experimental investigation of ion beam mixing in thin film bilayers: the study of the Fe-Al case. M.A.Z. Vasconcellos, J.A.T. Borges da Costa, P.L. Grande, S.R. Teixeira, W.H. Schreiner and I.J.R. Baumvol and C. Scherer, Physica status solidi (a), 129, 453-465 (1992).

In situ electrical resistivity of thin film b-NiAl under Ar irradiation at 77 K, J.A.T Borges da Costa, M.A.Z. Vasconcellos, S.R. Teixeira, C. Scherer and M.N. Baibich. Physical Review B, 45 1 (1992).

A Mössbauer Study on the Ion-Beam-Induced Phases in the Fe/Al Thin Film Bilayer, M.A.Z. Vasconcellos and J.A.T. Borges da Costa, Hyperfine Interactions, 66 (1-4) 331-337 (1991).

Arrangement of Cells in Vegetable Tissues. J.C.M. Mombach, M.A.Z. Vasconcellos and R. M.C. de Almeida. J. Phys. D: Appl. Phys., 28 600 (1990).

Surface Metallurgy with High Energy Heavy Ion Beams, M.A.Z. Vasconcellos, J.A.T. Borges da Costa, W.H. Schreiner and I.J.R. Baumvol, Nucl. Instrum. and Meth in Phys. Res. B 37/38, 653-660 (1989).

A Comparison of Thermal Annealing and Ion Beam Mixing in the Fe/Al Bilayer, M.A.Z. Vasconcellos, J.A.T. Borges da Costa, W.H. Schreiner and I.J.R. Baumvol, Phys. Stat. Sol (a) 112, 105 (1989).

Comment on ``Ion Mixing of Metal/Al Bilayers Near 77 K'', M.A.Z. Vasconcellos, J.A.T. Borges da Costa, W.H. Schreiner and I.J.R. Baumvol, Appl. Phys. Lett. 55, 513 (1989).

57Fe CEMS Characterization of Iron-Aluminum Thin Film Alloys, M.A.Z. Vasconcellos, S.R. Teixeira, P.H. Dionísio, W.H. Schreiner and I.J.R. Baumvol, Nucl. Inst. and Meth.in Phys. Res. A 280, 557 (1989).

Chemical Short Range Order in Fe20Ni60B20 Amorphous Alloy, R.B. Guimaraes, P.J. Viccaro, W.H. Schreiner, M.A.Z. Vasconcellos and M.N. Baibich, Journal de Physique, C8 Supplement au n. 12, Tome 49, 1375 (1988).

Interdiffusion and Reaction in the Iron-Aluminun bilayer: Part IV - Phase Characterization of Ion-beam-mixed Samples. M.A.Z. Vasconcellos, S.R. Teixeira, F.L. Freire Jr., M.C.S. Nobrega, P.H. Dionísio, W.H. Schreiner and I.J.R. Baumvol, Material Science and Engineering, A 104 169 (1988).

Interdiffusion and Reaction in the Iron-Aluminum bilayer: Part II - Sheet Resistivity of furnace annealed samples, S.R. Teixeira, P.H. Dionísio, M.A.Z. Vasconcellos, E.F. da Silveira, W.H. Schreiner and I.J.R. Baumvol, Material Science and Engineering, 96 267 (1987).

Comparative Study of Isothermal and Isochronous Crystallization of Metallic Glasses, M.A.Z. Vasconcellos, R.P. Livi and M.N. Baibich, 
Journal of Physics F: Metal Physics, 18 1343 (1988).

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