Search Results - "da Costa, F.A."

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  1. 1

    Optimization of hybrid oil/water‐swelling ethylene/propylene/diene monomer compounds by Raffa, Patrizio, Peixoto, Claudia S. P., Costa, Pedro F. A., Polgar, Lorenzo M., Machado, Ana V., Hough, Philip, Duin, Martin

    Published in Journal of applied polymer science (20-12-2020)
    “…Hybrid swell packers are rubber products capable of swelling in (saline) water and hydrocarbon oils, by exploiting the hydrocarbon diffusion properties of an…”
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  2. 2

    The random field Blume-Capel model revisited by Santos, P.V., da Costa, F.A., de Araújo, J.M.

    “…•We analyze the Blume Capel model in a random field and revisit the seminal work of Kaufman and Kanner.•The phase diagrams of the model are investigated when a…”
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  3. 3

    Mean-field solution of the Blume–Capel model under a random crystal field by Santos, P.V., da Costa, F.A., de Araújo, J.M.

    Published in Physics letters. A (17-07-2015)
    “…In this work we investigate the Blume–Capel model with infinite-range ferromagnetic interactions and under the influence of a quenched disorder – a random…”
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    Structure and hardness of a hard metal alloy prepared with a WC powder synthesized at low temperature by da Costa, F.A., de Medeiros, F.F.P., da Silva, A.G.P., Gomes, U.U., Filgueira, M., de Souza, C.P.

    “…The structure and hardness of a WC-10 wt% Co alloy prepared with an experimental WC powder are compared with those of another alloy of the same composition…”
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  6. 6

    Phase diagram of the two-dimensional ferromagnetic three-color Ashkin–Teller model by Piolho, F.A.P., da Costa, F.A., Bezerra, C.G., Mariz, A.M.

    Published in Physica A (01-03-2008)
    “…In the present work we study the critical properties of the ferromagnetic three-color Ashkin–Teller model (3AT) by means of a Migdal–Kadanoff renormalization…”
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    Solid state sintering of a W–25 wt% Ag powder prepared by high energy milling by da Costa, F.A., da Silva, A.G.P., Ambrozio Filho, F., Gomes, U.U.

    “…A composite W–25 wt% Ag powder was prepared by high energy milling (HEM). The mean particle size is 4.7 μm, although agglomerates of composite particles around…”
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  9. 9

    Sintering under plasma of a Ta–20%Cu composite powder prepared by high energy milling by da Costa, F.A., da Silva, J.F., da Silva, A.G.P., Gomes, U.U., Alves, C.

    “…The sintering under plasma heating of a powder mixture Ta–20w%Cu prepared by high energy milling is focused. The powder has composite particles in which Ta and…”
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  10. 10

    The anisotropic Ashkin–Teller model: a renormalization group study by Bezerra, C.G., Mariz, A.M., de Araújo, J.M., da Costa, F.A.

    Published in Physica A (15-03-2001)
    “…The two-dimensional ferromagnetic anisotropic Ashkin–Teller model is investigated through a real-space renormalization-group approach. The critical frontier,…”
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  11. 11

    A p-spin interaction Ashkin–Teller spin-glass model by Queiroz Jr, I.S., da Costa, F.A., Nobre, F.D.

    Published in Physica A (01-06-2002)
    “…A p-spin interaction Ashkin–Teller spin glass, with three independent Gaussian probability distributions for the exchange interactions, is studied by means of…”
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    Reentrant behavior in the transverse ordering of m-vector spin glasses by Vieira, S.R., Nobre, F.D., da Costa, F.A.

    Published in Physics letters. A (28-12-1998)
    “…The infinite-range-interaction m-vector spin glass, in the presence of a uniaxial anistropy, as well as of an external magnetic field (both along the same…”
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  15. 15

    The ferromagnetic Ising model on a Cayley tree: a damage spreading analysis by Xavier Jr, M.M., Nobre, F.D., Mariz, A.M., da Costa, F.A.

    Published in Physics letters. A (13-03-2000)
    “…The ferromagnetic Ising model on a Cayley tree of coordination z ( z=3, 4 and 5), is investigated through the damage-spreading technique, within the heat-bath…”
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  16. 16

    A mixed planar spin glass by Vieira, S.R., Nobre, F.D., da Costa, F.A.

    Published in Physica A (01-04-1995)
    “…We consider a mixed spin-glass model defined in terms of two groups of spins, XY and p-state clock variables, respectively; the interactions are…”
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