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Items for "scanning electron microscopy (SEM)"

Structural changes in activated wood-based carbons: correlation between specific surface area and localization of molecular-sized pores

Samples of maple were pyrolyzed and subsequently activated by carbon dioxide at different temperatures for various dwell times...

Keywords: activation, BET surface area, charcoal, electron microscopy (EM), graphite, pyrolysis, scanning electron microscopy (SEM), selected-area electron diffraction (SAED), transmission electron microscopy (TEM)

01/2006 | Holzforschung, Walter de Gruyter
Ultrastructural aspects of fibre development during the stone groundwood process: New insights into derived pulp properties

A study was performed on stone groundwood (SGW) pulps produced on a pilot scale. The behaviour of selected juvenile and mature Norway spruce wood samples was investigated...

Keywords: Delamination, fibre development, fibrillation, juvenile wood, mature wood, microfibril angle (MFA), S1 layer, S2 layer, scanning electron microscopy (SEM), stone groundwood (SGW), ultrastructure of the cell wall

08/2007 | Holzforschung, Walter de Gruyter
Exploring Scots pine fibre development mechanisms during TMP processing: Impact of cell wall ultrastructure (morphological and topochemical) on negative behaviour

A study was carried out aiming at understanding the fundamental reasons for different fibre behaviour exhibited by Norway spruce and Scots pine causing large energy consumption differences during thermomechanical pulping (TMP)...

Keywords: cell wall ultrastructure, defibration, fibre development, glucomannan, immunogold-EM, lignin, Picea abies, Pinus sylvestris, scanning electron microscopy (SEM), shives, S1 layer, S2 layer, transmission electron microscopy (TEM), thermomechanical pulping (TMP)

09/2008 | Holzforschung, Walter de Gruyter