Texture evolution in processing of polystyrene-clay nanocomposites

2021 ◽  
Author(s):  
David Richard Steinmetz
Keyword(s):  
Texture Evolution ◽  
Clay Nanocomposites

In situ investigation of the primary recrystallization of alpha titanium in HVEM

1978 ◽  
Vol 36 (1) ◽  
pp. 634-635
Author(s):  
S. Naka ◽  
R. Penelle ◽  
R. Valle
Keyword(s):  
Dimensional Analysis ◽  
Texture Evolution ◽  
Cold Work ◽  
Three Dimensional ◽  
Primary Recrystallization ◽  
Thin Foils ◽  
In Situ Investigation ◽  
Grain Growth Model ◽  
Alpha Titanium

The in situ experimentation technique in HVEM seems to be particularly suitable to clarify the processes involved in recrystallization. The material under investigation was unidirectionally cold-rolled titanium of commercial purity. The problem was approached in two different ways. The three-dimensional analysis of textures was used to describe the texture evolution during the primary recrystallization. Observations of bulk-annealed specimens or thin foils annealed in the microscope were also made in order to provide information concerning the mechanisms involved in the formation of new grains. In contrast to the already published work on titanium, this investigation takes into consideration different values of the cold-work ratio, the temperature and the annealing time.Two different models are commonly used to explain the recrystallization textures i.e. the selective grain growth model (Beck) or the oriented nucleation model (Burgers). The three-dimensional analysis of both the rolling and recrystallization textures was performed to identify the mechanismsl involved in the recrystallization of titanium.

Texture Evolution Under Fast Heating and Cooling Rates of Zirconium Alloys Studied In-Situ by Synchrotron X-Ray Diffraction

2020 ◽  
Author(s):  
Chi-Toan Nguyen ◽  
Alistair Garner ◽  
Javier Romero ◽  
Antoine Ambard ◽  
Michael Preuss ◽  
...  
Keyword(s):  
Texture Evolution ◽  
Zirconium Alloys ◽  
X Ray Diffraction ◽  
Fast Heating ◽  
Cooling Rates ◽  
X Ray ◽  
Heating And Cooling

Hydrogel-clay Nanocomposites as Carriers for Controlled Release

2020 ◽  
Vol 27 (6) ◽  
pp. 919-954 ◽  
Author(s):  
Raluca Ianchis ◽  
Claudia Mihaela Ninciuleanu ◽  
Ioana Catalina Gifu ◽  
Elvira Alexandrescu ◽  
Cristina Lavinia Nistor ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Controlled Release ◽  
Hybrid Materials ◽  
Pharmaceutical Formulations ◽  
Tree Of Life ◽  
Present Review ◽  
Clay Nanocomposites ◽  
Delivery Platform ◽  
Complex Hybrid

The present review aims to summarize the research efforts undertaken in the last few years in the development and testing of hydrogel-clay nanocomposites proposed as carriers for controlled release of diverse drugs. Their advantages, disadvantages and different compositions of polymers/biopolymers with diverse types of clays, as well as their interactions are discussed. Illustrative examples of studies regarding hydrogel-clay nanocomposites are detailed in order to underline the progressive researches on hydrogel-clay-drug pharmaceutical formulations able to respond to a series of demands for the most diverse applications. Brief descriptions of the different techniques used for the characterization of the obtained complex hybrid materials such as: swelling, TGA, DSC, FTIR, XRD, mechanical, SEM, TEM and biology tests, are also included. Enlightened by the presented data, we can suppose that hydrogel-clay nanocomposites will still be a challenging subject of global assiduous researches. We can dare to dream to an efficient drug delivery platform for the treatment of multiple affection concomitantly, these being undoubtedly like ”a tree of life” bearing different kinds of fruits and leaves proper for human healing.

Thermal and mechanical induced texture evolution of inertia friction welding in α + β titanium alloy

2020 ◽  
Vol 277 ◽  
pp. 128329 ◽  
Author(s):  
Y.H. Liu ◽  
Z.B. Zhao ◽  
C.B. Zhang ◽  
Q.J. Wang ◽  
H. Sun ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Friction Welding ◽  
Texture Evolution ◽  
Inertia Friction Welding

Analysis of texture evolution in equal channel angular extrusion of copper using a new flow field

2004 ◽  
Vol 52 (7) ◽  
pp. 1885-1898 ◽  
Author(s):  
László S. Tóth ◽  
Roxane Arruffat Massion ◽  
Lionel Germain ◽  
Seung C. Baik ◽  
Satyam Suwas
Keyword(s):  
Flow Field ◽  
Equal Channel Angular Extrusion ◽  
Texture Evolution ◽  
Angular Extrusion
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