|
|
“The notion of resolution”. Van Aert S, den Dekker AJ, van Dyck D, van den Bos A Springer, Berlin, page 1228 (2007).
Keywords: H3 Book chapter; Electron microscopy for materials research (EMAT); Vision lab
|
|
|
|
“Novel coreshell magnetic nanoparticles for Taxol encapsulation in biodegradable and biocompatible block copolymers : preparation, characterization and release properties”. Filippousi M, Papadimitriou SA, Bikiaris DN, Pavlidou E, Angelakeris M, Zamboulis D, Tian H, Van Tendeloo G, International journal of pharmaceutics 448, 221 (2013). http://doi.org/10.1016/j.ijpharm.2013.03.025
Abstract: Theranostic polymeric nanocarriers loaded with anticancer drug Taxol and superparamagnetic iron oxide nanocrystals have been developed for possible magnetic resonance imaging (MRI) use and cancer therapy. Multifunctional nanocarriers with a coreshell structure have been prepared by coating superparamagnetic Fe3O4 nanoparticles with block copolymer of poly(ethylene glycol)-b-poly(propylene succinate) with variable molecular weights of the hydrophobic block poly(prolylene succinate). The multifunctional polymer nano-vehicles were prepared using a nanoprecipitation method. Scanning transmission electron microscopy revealed the encapsulation of magnetic nanoparticles inside the polymeric matrix. Energy dispersive X-ray spectroscopy and electron energy loss spectroscopy mapping allowed us to determine the presence of the different material ingredients in a quantitative way. The diameter of the nanoparticles is below 250 nm yielding satisfactory encapsulation efficiency. The nanoparticles exhibit a biphasic drug release pattern in vitro over 15 days depending on the molecular weight of the hydrophobic part of the polymer matrix. These new systems where anti-cancer therapeutics like Taxol and iron oxide nanoparticles (IOs) are co-encapsulated into new facile polymeric nanoparticles, could be addressed as potential multifunctional vehicles for simultaneous drug delivery and targeting imaging as well as real time monitoring of therapeutic effects.
Keywords: A1 Journal article; Pharmacology. Therapy; Electron microscopy for materials research (EMAT)
Impact Factor: 3.649
Times cited: 29
DOI: 10.1016/j.ijpharm.2013.03.025
|
|
|
|
“Novel hybrid materials for gas sensing applications made of metal-decorated MWCNTs dispersed on nano-particle metal oxides”. Ionescu R, Espinosa EH, Leghrib R, Felten A, Pireaux J-J, Erni R, Van Tendeloo G, Bittencourt C, Canellas N, Llobet E, Sensors and actuators : B : chemical 131, 174 (2008). http://doi.org/10.1016/j.snb.2007.11.001
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 5.401
Times cited: 47
DOI: 10.1016/j.snb.2007.11.001
|
|
|
|
“Novel method to synthesize highly ordered ethane-bridged PMOs under mild acidic conditions : taking advantages of phosphoric acid”. Lin F, Meng X, Kukueva E, Kus M, Mertens M, Bals S, Van Doorslaer S, Cool P, Microporous and mesoporous materials: zeolites, clays, carbons and related materials 207, 61 (2015). http://doi.org/10.1016/j.micromeso.2014.12.029
Abstract: Highly ordered SBA-15-type ethane-bridged PMOs have been obtained by employing H3PO4 as acid to tune the pH in the presence of copolymer surfactant P123. The effects of the acidity and the addition of inorganic salt on the formation of the mesostructure are investigated. It is found that, compared with HCl, the polyprotic weak acid H3PO4 is preferable for the synthesis of highly ordered SBA-15-type ethane-bridged PMOs with larger pore size and surface areas under mild acidic conditions. Moreover, taking the advantages of the mild acidic condition, vanadium-containing SBA-15-type ethane-bridged PMOs were successfully prepared through a direct synthesis approach. The XRD, N2-sorption, UVVis and CW-EPR studies of the V-PMO show that part of the vanadium species are present in polymeric (VOV)n clusters, while part of the vanadium centers are well-dispersed and immobilized on the inner surface of the mesopores.
Keywords: A1 Journal article; Engineering sciences. Technology; Electron microscopy for materials research (EMAT); Laboratory of adsorption and catalysis (LADCA)
Impact Factor: 3.615
Times cited: 5
DOI: 10.1016/j.micromeso.2014.12.029
|
|
|
|
“Novel, oxygen-deficient n=3 RP-member Sr3NdFe3O9-\delta and its topotactic derivatives”. Pelloquin D, Hadermann J, Giot M, Caignaert V, Michel C, Hervieu M, Raveau B, Chemistry of materials 16, 1715 (2004). http://doi.org/10.1021/cm030351n
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 9.466
Times cited: 24
DOI: 10.1021/cm030351n
|
|
|
|
“Novel poly(butylene succinate) nanocomposites containing strontium hydroxyapatite nanorods with enhanced osteoconductivity for tissue engineering applications”. Nerantzaki M, Filippousi M, Van Tendeloo G, Terzopoulou Z, Bikiaris D, Goudouri OM, Detsch R, Grueenewald A, Boccaccini AR, Express polymer letters 9, 773 (2015). http://doi.org/10.3144/expresspolymlett.2015.73
Abstract: Three series of poly(butylene succinate) (PBSu) nanocomposites containing 0.5, 1 and 2.5 wt% strontium hydroxyapatite [Sr-5(PO4)(3)OH] nanorods (SrHAp nrds) were prepared by in situ polymerisation. The structural effects of Sr-5(PO4)(3)OH nanorods, for the different concentrations, inside the polymeric matrix (PBSu), were studied through high angle annular dark field scanning transmission electron microscopy (HAADF-STEM). HAADF-STEM measurements revealed that the SrHAp nanorods at low concentrations are dispersed inside the polymeric PBSu matrix while in 1 wt% some aggregates are formed. These aggregations affect the mechanical properties giving an enhancement for the concentration of 0.5 wt% SrHAp nrds in tensile strength, while a reduction is recorded for higher loadings of the nanofiller. Studies on enzymatic hydrolysis revealed that all nanocomposites present higher hydrolysis rates than neat PBSu, indicating that nanorods accelerate the hydrolysis degradation process. In vitro bioactivity tests prove that SrHAp nrds promote the formation of hydroxyapatite on the PBSu surface. All nanocomposites were tested also in relevant cell culture using osteoblast-like cells (MG-63) to demonstrate their biocompatibility showing SrHAp nanorods support cell attachment.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 2.983
Times cited: 21
DOI: 10.3144/expresspolymlett.2015.73
|
|
|
|
“Novel MoVSbOx-type catalysts for selective isobutane oxidation”. Paul JS, Groothaert MH, Kirschhock CEA, Lebedev OI, Jacobs PA, Maier WF, Catalysis today
T2 –, 7th European Workshop Meeting on Selective Oxidation, AUG 31-SEP 04, 2003, Innsbruck, AUSTRIA 91-2, 265 (2004). http://doi.org/10.1016/j.cattod.2004.03.041
Abstract: A new sol-gel synthesis procedure is proposed for the preparation of MoVSbOx catalysts for the selective oxidation of isobutane. Physico-chemical characterization of the materials calcined at 400 degreesC, showed essentially amorphous catalysts, with long-range order. Increase of calcination temperature, however, resulted in the formation of small crystalline regions, confirmed through TEM. EPR measurements on the calcined samples pointed to the presence of isolated and magnetically interacting V(IV) species. The reported catalysts proved to be much more selective for partial oxidation compared to a literature reference catalyst. Furthermore, it is shown that this versatile synthesis recipe forms an excellent start for high-throughput and combinatorial studies. (C) 2004 Elsevier B.V. All rights reserved.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 4.636
Times cited: 12
DOI: 10.1016/j.cattod.2004.03.041
|
|
|
|
“Nucleation and growth of bainitic Ni5Al3 in B2 austenite and 3R martensite”. Schryvers D, Ma Y, Toth L, Tanner LE, Solid-solid state phase transformations , 929 (1994)
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
|
|
|
|
“Nucleation and growth of Ni5Al3 in austenite and martensite matrices”. Schryvers D, Ma Y, Toth L, Tanner LE, Electron Microscopy 1994, Vols 2a And 2b: Applications In Materials Sciences , 509 (1994)
Keywords: P1 Proceeding; Electron microscopy for materials research (EMAT)
|
|
|
|
“Nucleation and growth of the Ni5Al3 phase in Ni-Al austenite and martensite”. Schryvers D, Toth L, Ma Y, Tanner L, Journal de physique: 4
T2 –, IIIrd European Symposium on Martensitic Transformations (ESOMAT 94), SEP 14-16, 1994, BARCELONA, SPAIN 5, 299 (1995). http://doi.org/10.1051/jp4:1995246
Abstract: The nucleation and growth mechanisms of Ni5Al3 precipitates and microtwinned plates in B2 austenite and 2M (3R) martensite phases are described on the basis of conventional and high resolution electron microscopy. In the Ni62.5Al37.5 B2 austenite matrix short annealings at 550 degrees C introduce three-pointed star shaped precipitates consisting of twin related parts of different variants of the Ni5Al3 structure. Longer annealings result in plates growing separately from these wings and developing microtwinning in order to accommodate stress built-up at the interfaces with the surrounding matrix. Annealing of Ni65Al35 2M martensite plates induces simple reordering into the Ni5Al3 phase, increasing the fct c/a ratio by about 1%. As a result stracking faults are introduced in the smallest twin variants.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Times cited: 3
DOI: 10.1051/jp4:1995246
|
|
|
|
“Nucleation and growth of the Ni5Al3 in NiAl austenite and martensite”. Schryvers D, Toth L, Ma Y, Tanner LE, Journal de physique: 4 C2, 299 (1994)
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
|
|
|
|
“Nucleation of metal clusters on plasma treated multi wall carbon nanotubes”. Felten A, Bittencourt C, Colomer J-F, Van Tendeloo G, Pireaux J-J, Carbon 45, 110 (2007). http://doi.org/10.1016/j.carbon.2006.07.023
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 6.337
Times cited: 40
DOI: 10.1016/j.carbon.2006.07.023
|
|
|
|
“Nucleation of superconductivity in mesoscopic star-shaped superconductors”. Dikin DA, Chandrasekhar V, Misko VR, Fomin VM, Devreese JT, European Physical Journal B 34, 231 (2003). http://doi.org/10.1140/epjb/e2003-00216-2
Keywords: A1 Journal article; Electron Microscopy for Materials Science (EMAT);
Impact Factor: 1.461
Times cited: 5
DOI: 10.1140/epjb/e2003-00216-2
|
|
|
|
“The “oblique&rdquo, zone imaging of the superlattice in complex crystal structure”. Milat O, Krekels T, Van Tendeloo G, Amelinckx S, Icem 13, 859 (1994)
Keywords: A3 Journal article; Electron microscopy for materials research (EMAT)
|
|
|
|
“Observation of Co/CoO nanoparticles below the critical size for exchange bias”. Dobrynin AN, Temst K, Lievens P, Margueritat J, Gonzalo J, Afonso CN, Piscopiello E, Van Tendeloo G, Journal of applied physics 101, 113913 (2007). http://doi.org/10.1063/1.2736303
Abstract: We compare the magnetic properties of pure and oxidized Co nanoparticles embedded in an amorphous Al2O3 matrix. Nanoparticles with diameters of 2 or 3 nm were prepared by alternate pulsed laser deposition in high vacuum conditions, and some of them were exposed to O-2 after production and before being embedded. The nanoparticles are organized in layers, the effective edge-to-edge in-depth separation being 5 or 10 nm. The lower saturation magnetizations per Co atom for the samples containing oxidized nanoparticles provide evidence for the formation of antiferromagnetic CoO shells in the nanoparticles. None of the samples with Co/CoO nanoparticles show exchange bias, while vertical hysteresis loop shifts and enhanced coercivities (as compared to samples with pure Co nanoparticles) are observed. This constitutes evidence for the nanoparticles size being in all cases smaller than the critical size for exchange bias. The difference in coercivity versus temperature dependences for the samples with pure and oxidized Co nanoparticles shows that the exchange anisotropy in Co/CoO nanoparticles appears at temperatures lower than 50 K. (c) 2007 American Institute of Physics.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 2.068
Times cited: 27
DOI: 10.1063/1.2736303
|
|
|
|
“Observation of nanostripes and -clusters in (Nd, EuGd)Ba2Cu3Ox superconductors”. Koblischka MR, Winter M, Das P, Koblischka-Veneva A, Muralidhar M, Wolf T, Babu NH, Turner S, Van Tendeloo G, Hartmann U, Physica: C : superconductivity 469, 168 (2009). http://doi.org/10.1016/j.physc.2009.01.007
Abstract: Nanostripes are observed in melt-textured and single-crystalline samples of the ternary light rare earth (LRE)-compound (Nd0.33Eu0.33Gd0.33)Ba2Cu3Ox (NEG) by means of atomic force microscopy, scanning tunnelling microscopy at ambient conditions, combined with transmission electron microscopy and electron backscatter diffraction. This enables the observation of several important features: The nanostripes are formed by chains of nanoclusters, representing the LRE/Ba substitution. The dimensions of the nanostripes are similar for both types of NEG samples. The periodicity of the nanostripes is found to range between 40 and 60 nm; the shape of the nanoclusters is elliptic with a major axis length between 300 and 500 nm and a minor axis length of about 30150 nm. The stripes are filling effectively the space in between the twin boundaries. Concerning the flux pinning, the nanoclusters are the important pinning sites, not the nanostripes themselves.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 1.404
Times cited: 6
DOI: 10.1016/j.physc.2009.01.007
|
|
|
|
“Observation of Sb203 nanocrystals in SiO2 after Sb ion implantation”. Ignatova VA, Lebedev OI, Wätjen U, van Vaeck L, van Landuyt J, Gijbels R, Adams F, Microchimica acta 139, 77 (2002). http://doi.org/10.1007/s006040200043
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT); Plasma Lab for Applications in Sustainability and Medicine – Antwerp (PLASMANT)
Impact Factor: 4.58
Times cited: 3
DOI: 10.1007/s006040200043
|
|
|
|
“Observation of superconductivity (Tc = 50K) in a new tetragonal alkaline-earth cuprate Sr0.8Ba1.2CuO3+\delta synthesised at ambient pressure”. Hodges JP, Slater PR, Edwards PP, Greaves C, Slaski M, Van Tendeloo G, Amelinckx S, Physica: C : superconductivity 260, 249 (1996). http://doi.org/10.1016/0921-4534(96)00118-9
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 0.942
Times cited: 7
DOI: 10.1016/0921-4534(96)00118-9
|
|
|
|
“Observation of vacancy clustering in FZ-Si crystals during in situ electron irradiation in a high voltage electron microscope”. Fedina L, van Landuyt J, Vanhellemont J, Aseev AL, Nuclear instruments and methods in physics research B112, 133 (1996). http://doi.org/10.1016/0168-583X(95)01277-X
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 1.124
Times cited: 4
DOI: 10.1016/0168-583X(95)01277-X
|
|
|
|
“Observation of vacancy clustering in Si crystals during in situ electron irradiation in a high voltage electron microscope”. Fedina L, van Landuyt J, Vanhellemont J, Aseev A, Materials Research Society symposium proceedings 404, 189 (1996)
Keywords: P1 Proceeding; Electron microscopy for materials research (EMAT)
Times cited: 1
|
|
|
|
“Observations of intermetallic compound formation of hot dip aluminized steel”. Kee-Hyun K, van Daele B, Van Tendeloo G, Jong-Kyu Y, Aluminium alloys: part 1-2 519-521, 1871 (2006)
Abstract: A hot dip aluminizing process to simulate the continuous galvanizing line (CGL) was carried out in three successive steps by a hot dip simulator: the pre-treatment for removing scales on the 200 x 250 mm(2) and 1mm in thickness cold rolled steel sheet, the dipping in 660 degrees C Al-Si melt for 3s and the cooling. In a pre-treatment, the steel specimen was partly coated by Au to confirm the mechanism of intermetallic compound (IMC) formation. Scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX), and transmission electron microscopy (TEM) analyses were followed to observe the cross-section and the distribution of the elements. The specimen was analyzed in the boundary of the dipped-undipped part to see the formation mechanism of the aluminized steel. An intermetallic compound (IMC) is rapidly developed and grown in the steel-liquid interface. It has been usually reported that the IMC was formed by the dissolution of iron in the steel substrate toward the melt and the diffusion of aluminum in an opposite direction. The specimen is covered with aluminum-10 wt.% silicon, forms the IMC in the part that was not Au coated. However, IMC is not formed in the Au-coated part. The interface of the dipped-undipped is also analyzed by EDX. At the interface of the steel-IMC, it is clearly shown that the IMC is only formed in the dipped part and exists in the steel substrate as well, and contributes by iron, aluminum and silicon. The result clearly shows that only aluminum diffuses into the steel substrate without the dissolution of iron and forms the IMC between the steel substrate and the melt. Au coating and the short dipping time prevent the iron from dissolving into the aluminum melt. By TEM combined with focused ion beam (FIB) sample preparation, the IMC is confirmed as Fe2SiAl8, a hexagonal structure with space group P6(3)/mmc.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
|
|
|
|
“Obstacles on the road towards atomic resolution tomography”. van Dyck D, Van Aert S, Croitoru MD, Microscoy and microanalysis 11, 238 (2005)
Keywords: A3 Journal article; Electron microscopy for materials research (EMAT); Condensed Matter Theory (CMT); Vision lab
|
|
|
|
“Octahedral-shaped perovskite nanocrystals and their visible-light photocatalytic activity”. Yin S, Tian H, Ren Z, Wei X, Chao C, Pei J, Li X, Xu G, Shen G, Han G, Chemical communications 50, 6027 (2014). http://doi.org/10.1039/c4cc01118j
Abstract: Octahedral-shaped perovskite PbTiO3 nanocrystals (PT OCT) with well-defined {111} facets exposed have been successfully synthesized via a facile hydrothermal method by using LiNO3 as an ion surfactant. The Li-O bond on the surface of PT OCT nanocrystals is essential to the stability of such nanocrystals and also results in a dramatic high visible-light photocatalytic activity.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 6.319
Times cited: 19
DOI: 10.1039/c4cc01118j
|
|
|
|
“Off-stoichiometry effects on the crystalline and defect structure of hexagonal manganite REMnO3 films (RE = Y, Er, Dy)”. Gélard J, Jehanathan N, Roussel H, Gariglio S, Lebedev OI, Van Tendeloo G, Dubourdieu C, Chemistry of materials 23, 1232 (2011). http://doi.org/10.1021/cm1029358
Abstract: The crystalline and defect structure of epitaxial hexagonal RExMnyO3 (RE = Er, Dy) films with varying cationic composition was investigated by X-ray diffraction and transmission electron microscopy. The films are composed of a strained layer at the interface with the substrate and of a relaxed layer on top of it. The critical thickness is of 10 to 25 nm. For Mn-rich films (or RE deficient), an off-stoichiometric composition maintaining the hexagonal LuMnO3-type structure is stabilized over a large range of the RE/Mn ratio (0.72−1.00), with no Mn-rich secondary phases observed. A linear dependence of the out-of-plane lattice parameter with RE/Mn is observed in this range. Out-of-phase boundary (OPB) extended defects are observed in all films and exhibit a local change in stoichiometry. Such a large solubility limit in the RE deficient region points toward the formation of vacancies on the RE site (RExMnO3−δ, with 0.72 ≤ x < 1), a phenomenon that is encountered in perovskite manganites such as LaxMnO3−δ (x < 1) and that may strongly impact the physical properties of hexagonal manganites.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 9.466
Times cited: 17
DOI: 10.1021/cm1029358
|
|
|
|
“On the asymmetric next-nearest-neighbor ising model of oxygen ordering in YBa2Cu3Oz”. de Fontaine D, Asta M, Ceder G, McCormack R, Van Tendeloo G, Europhysics letters 19, 229 (1992). http://doi.org/10.1209/0295-5075/19/3/013
Abstract: Basic results concerning oxygen ordering in the superconducting compound YBa2Cu3Oz are briefly summarized. It is shown that, at equilibrium, only infinite-chain structures can be stabilized and those models based on hypothetical (and actually nonphysical) screened Coulomb interactions cannot produce stable ground states. It is suggested that diffraction data (neutrons, X-rays, electrons) from oxygen-lean samples are indicative of metastable displacive transformations, and are not directly related to oxygen ordering.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 2.095
Times cited: 33
DOI: 10.1209/0295-5075/19/3/013
|
|
|
|
“On the crystal structure of TiNi-Cu martensite”. Potapov P, Shelyakov A, Schryvers D, Scripta materialia 44, 1 (2001). http://doi.org/10.1016/S1359-6462(00)00555-8
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 3.747
Times cited: 36
DOI: 10.1016/S1359-6462(00)00555-8
|
|
|
|
“On the Ginzburg-Landau analysis of a mixed s-dx2-y2-wave superconducting mesoscopic square”. Misko VR, Fomin VM, Devreese JT, Moshchalkov VV, Solid State Communications 114, 499 (2000). http://doi.org/10.1016/S0038-1098(00)00090-9
Keywords: A1 Journal article; Electron Microscopy for Materials Science (EMAT);
Impact Factor: 1.554
Times cited: 2
DOI: 10.1016/S0038-1098(00)00090-9
|
|
|
|
“On the interpretation of HREM images of partially ordered alloys”. De Meulenaere P, Van Tendeloo G, van Landuyt J, van Dyck D, Ultramicroscopy 60, 265 (1995). http://doi.org/10.1016/0304-3991(95)00065-9
Abstract: The ordering for 11/20 alloys has been studied by high-resolution electron microscopy (HREM). The distribution of the intensity maxima in the HREM image have been statistically examined, which provides a profound basis for the image interpretation. Processing of the HREM images allows ''dark-field'' images to be obtained, exhibiting a two-dimensional distribution of those columns which contain the most information in order to interpret the short-range order correlations. Pair correlations and higher cluster correlations between projected columns can be visualised, providing unique information about the ordering as retrieved from an experimental result without any other assumption. The method has been applied to Au4Cr and to Au4Mn to interpret the quenched short-range order state and the transition to long-range order.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT); Vision lab
Impact Factor: 2.436
Times cited: 20
DOI: 10.1016/0304-3991(95)00065-9
|
|
|
|
“On the mechanism of {111}-defect formation in silicon studies by in situ electrin irradiation in a high resolution electron microscope”. Fedina L, Gutakovskii A, Aseev A, van Landuyt J, Vanhellemont J, Philosophical magazine: A: physics of condensed matter: defects and mechanical properties 77, 423 (1998)
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Times cited: 23
|
|
|
|
“On the mechanism of twin formation in FeMnC TWIP steels”. Idrissi H, Renard K, Ryelandt L, Schryvers D, Jacques PJ, Acta materialia 58, 2464 (2010). http://doi.org/10.1016/j.actamat.2009.12.032
Abstract: Although it is well known that FeMnC TWIP steels exhibit high work-hardening rates, the elementary twinning mechanisms controlling the plastic deformation of these steels have still not been characterized. The aim of the present study is to analyse the extended defects related to the twinning occurrence using transmission electron microscopy. Based on these observations, the very early stage of twin nucleation can be attributed to the pole mechanism with deviation proposed by Cohen and Weertman or to the model of Miura, Takamura and Narita, while the twin growth is controlled by the pole mechanism proposed by Venables. High densities of sessile Frank dislocations are observed within the twins at the early stage of deformation, which can affect the growth and the stability of the twins, but also the strength of these twins and their interactions with the gliding dislocations present in the matrix. This experimental evidence is discussed and compared to recent results in order to relate the defects analysis to the macroscopic behaviour of this category of material.
Keywords: A1 Journal article; Electron microscopy for materials research (EMAT)
Impact Factor: 5.301
Times cited: 244
DOI: 10.1016/j.actamat.2009.12.032
|
|
