Synchrotron-based X-ray microscopy for assessing elements distribution and speciation in mangrove tree-rings

Alves, Elton Eduardo Novais; Rodríguez, Daigard Ricardo Ortega; Rocha, Pablo de Azevedo; Vergütz, Leonardus; Santini, L.; Hesterberg, Dean; Pessenda, Luiz Carlos Ruiz; Tomazello-Filho, Mário; Costa, Liovando Marciano da

doi:10.1016/j.rechem.2021.100121

Cited by 20 publications

(12 citation statements)

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“…In order to expand the capabilities of the analysis of mechanical properties in their connection with the architecture of wood ring structures, the following methods have been used: two-dimensional mapping of properties on cross-sections of tree trunks by AFM methods [ 89 , 90 , 91 , 92 ] and NI [ 93 ] scanning, 3D X-ray [ 94 , 95 ] and NMR tomography [ 96 ], and synchrotron-based X-ray microscopy [ 97 ]. However, these methods are complicated, labor-intensive and require expensive or unique equipment; therefore, they are used only sporadically.…”

Section: Methods Of Studying the Structural And Mechanical Properties...mentioning

confidence: 99%

Multiscale Mechanical Performance of Wood: From Nano- to Macro-Scale across Structure Hierarchy and Size Effects

et al. 2022

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This review describes methods and results of studying the mechanical properties of wood at all scales: from nano- to macro-scale. The connection between the mechanical properties of material and its structure at all these levels is explored. It is shown that the existing size effects in the mechanical properties of wood, in a range of the characteristic sizes of the structure of about six orders of magnitude, correspond to the empirical Hall-Petch relation. This “law” was revealed more than 60 years ago in metals and alloys and later in other materials. The nature, as well as the particular type of the size dependences in different classes of materials can vary, but the general trend, “the smaller the stronger”, remains true both for wood and for other cellulose-containing materials. The possible mechanisms of the size effects in wood are being discussed. The correlations between the mechanical and thermophysical properties of wood are described. Several examples are used to demonstrate the possibility to forecast the macromechanical properties of wood by means of contactless thermographic express methods based on measuring temperature diffusivity. The research technique for dendrochronological and dendroclimatological studies by means of the analysis of microhardness and Young’s modulus radial dependences in annual growth rings is described.

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Section: Methods Of Studying the Structural And Mechanical Properties...mentioning

confidence: 99%

Multiscale Mechanical Performance of Wood: From Nano- to Macro-Scale across Structure Hierarchy and Size Effects

et al. 2022

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“…Микроструктуру изучают с помощью электронной просвечивающей и сканирующей микроско-пии, сканирующей зондовой (преимущественно атомносиловой), конфокальной лазерной и оптической микроскопии в различных модах [2][3][4]. Характер и степень упорядоченности молекул целлюлозы в нановолокнах определяют методом рентгеновской дифрактометрии [5,6], синхротронного рентгеновского излучения [7] и малоуглового рентгеновского рассеяния. Элементный и молекулярный составы выявляют различными спектроскопическими методами.…”

Section: Introductionunclassified

“…Известны попытки применения современных физических методов для пространственного картирования свойств дерева, в частности, методами рассеяния синхротронного излучения [7], 3D рентгеновской компьютерной [46][47][48][49] и магниторезонансной томографии [50]. Однако эти методы сложны в реализации, трудоемки и требуют дорогостоящего или уникального оборудования, поэтому они применяются редко.…”

Section: Introductionunclassified

Локальные Механические Свойства И Кольцевая Структура Древесины, Исследованные Методом Сканирующего Наноиндентирования

Головин¹,

Тюрин²,

Гусев³

et al. 2022

Журнал Технической Физики

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The paper presents the results of scanning of mechanical properties of coniferous (common pine Pinus sylvestris) and deciduous (small-leaved lime Tilia cordata and common oak Quercus robur) trees wood using nanoindentation on crosscut face. Manifold increase in microhardness H and Young’s modulus E has been observed between early and late wood in every annual growth ring. Significant differences in intraring radial dependencies of H and E have been found among studied species. For all studied species the average values of E and H of early wood in each annual ring are found to be independent from ring width, while such dependence for late wood is weak at most. The ring widths measured by nanoindentation coincide with the ones measured by standard optical method within 2-3%. The developed technique and obtained results can be useful 1) to amend the understanding the origins of macromechanical properties of various wood species and their dependence upon microstructural characteristics and growth conditions, 2) to optimize the technologies of growing, reinforcement and subsequent usage of the wood, 3) to develop new independent high resolution methods in dendrochronology.

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“…The microstructure is examined with transmission and scanning electron microscopes, scanning probe microscopes (primarily atomic force ones), confocal laser microscopes, and optical microscopes in various modes [2][3][4]. The nature and degree of ordering of cellulose molecules in nanofibers is determined by X-ray diffractometry [5,6], synchrotron-based X-ray microscopy [7], and small-angle X-ray scattering. The elemental and phase compositions are identified by various spectroscopic techniques.…”

Section: Introductionmentioning

confidence: 99%

“…Several attempts at applying modern physical methods (specifically, synchrotron scattering [7], 3D X-ray computer tomography [46][47][48][49], and magnetic resonance tomography [50]) to spatial mapping of the properties of wood have already been made. However, since these methods are complex, laborious, and require expensive or unique equipment, they are used only rarely.…”

Section: Introductionmentioning

confidence: 99%

Scanning naation as an instrument of studying local mechanical properties distribution in wood and a new technique for dendrochronology

Tyurin

Gusev

et al. 2022

Technical Physics

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The paper presents the results of scanning of mechanical properties of coniferous (common pine Pinus sylvestris) and deciduous (small-leaved lime Tilia cordata and common oak Quercus robur) trees wood using naation on crosscut face. Manifold increase in microhardness H and Young's modulus E has been observed between early and late wood in every annual growth ring. Significant differences in intraring radial dependencies of H and E have been found among studied species. For all studied species the average values of E and H of early wood in each annual ring are found to be independent from ring width, while such dependence for late wood is weak at most. The ring widths measured by naation coincide with the ones measured by standard optical method within 2-3%. The developed technique and obtained results can be useful 1) to amend the understanding the origins of macromechanical properties of various wood species and their dependence upon microstructural characteristics and growth conditions, 2) to optimize the technologies of growing, reinforcement and subsequent usage of the wood, 3) to develop new independent high resolution methods in dendrochronology. Keywords: naation, nano-/microhardness and Young's modulus scanning, tree annual growth rings, dendrochronology.

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Synchrotron-based X-ray microscopy for assessing elements distribution and speciation in mangrove tree-rings

Cited by 20 publications

References 70 publications

Multiscale Mechanical Performance of Wood: From Nano- to Macro-Scale across Structure Hierarchy and Size Effects

Multiscale Mechanical Performance of Wood: From Nano- to Macro-Scale across Structure Hierarchy and Size Effects

Локальные Механические Свойства И Кольцевая Структура Древесины, Исследованные Методом Сканирующего Наноиндентирования

Scanning naation as an instrument of studying local mechanical properties distribution in wood and a new technique for dendrochronology

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