Characteristics of x-ray computer tomography application to composite material research

1992 ◽  
Vol 63 (6) ◽  
pp. 1249-1255 ◽  
Author(s):  
V. I. Barakhov ◽  
V. A. Chernyaeva ◽  
V. S. Kiselev
Keyword(s):  
Composite Material ◽  
Computer Tomography ◽  
Material Research ◽  
X Ray

Comparison of Laboratory Compaction Methods using X-ray Computer Tomography

2007 ◽  
Vol 8 (2) ◽  
pp. 139-164 ◽  
Author(s):  
Manfred N Partl ◽  
Alexander Flisch ◽  
M Jönsson
Keyword(s):  
Computer Tomography ◽  
X Ray

scholarly journals Is Micro X-ray Computer Tomography a Suitable Non-Destructive Method for the Characterisation of Dental Materials?

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1271
Author(s):  
Andreas Koenig ◽  
Leonie Schmohl ◽  
Johannes Scheffler ◽  
Florian Fuchs ◽  
Michaela Schulz-Siegmund ◽  
...  
Keyword(s):  
Flexural Strength ◽  
Computer Tomography ◽  
Mechanical Performance ◽  
Dental Materials ◽  
Three Dimensional ◽  
X Rays ◽  
Scanning Calorimetry ◽  
X Ray ◽  
Multiple Measurements ◽  
High Doses

The aim of the study was to investigate the effect of X-rays used in micro X-ray computer tomography (µXCT) on the mechanical performance and microstructure of a variety of dental materials. Standardised bending beams (2 × 2 × 25 mm3) were forwarded to irradiation with an industrial tomograph. Using three-dimensional datasets, the porosity of the materials was quantified and flexural strength was investigated prior to and after irradiation. The thermal properties of irradiated and unirradiated materials were analysed and compared by means of differential scanning calorimetry (DSC). Single µXCT measurements led to a significant decrease in flexural strength of polycarbonate with acrylnitril-butadien-styrol (PC-ABS). No significant influence in flexural strength was identified for resin-based composites (RBCs), poly(methyl methacrylate) (PMMA), and zinc phosphate cement (HAR) after a single irradiation by measurement. However, DSC results suggest that changes in the microstructure of PMMA are possible with increasing radiation doses (multiple measurements, longer measurements, higher output power from the X-ray tube). In summary, it must be assumed that X-ray radiation during µXCT measurement at high doses can lead to changes in the structure and properties of certain polymers.

An X-ray micro-computer tomography study of the Malpighian tubules of the Blue Bottle Blow Fly (Calliphora vomitoria) Diptera: Calliphoridae

Zoology ◽  
2021 ◽  
pp. 125972
Author(s):  
Duncan Bell ◽  
Nic Bury ◽  
Svetlana Gretton ◽  
Nick Corps ◽  
David Mortimore ◽  
...  
Keyword(s):  
Computer Tomography ◽  
Malpighian Tubules ◽  
Blow Fly ◽  
X Ray

Monitoring of water absorption in sedimentary rocks by X-ray computer tomography

2007 ◽  
pp. 57-60
Author(s):  
L Suárez del Río ◽  
C Celorio ◽  
A Rodríguez-Rey ◽  
J Descheirder ◽  
L Calleja ◽  
...  
Keyword(s):  
Water Absorption ◽  
Computer Tomography ◽  
Sedimentary Rocks ◽  
X Ray

scholarly journals THE EFFECT OF TiO2 AS ADDITIVES ON PROPERTIES OF COMPOSITE MgO FOR BONE REPAIR

2018 ◽  
Vol 18 (2) ◽  
pp. 229-238
Author(s):  
Israa Khahtan Sabree
Keyword(s):  
Composite Material ◽  
Bone Repair ◽  
Rutile Phase ◽  
Phase 2 ◽  
Tio2 Content ◽  
X Ray ◽  
Mechanical Study ◽  
Prepared Composite ◽  
Tio2 Rutile ◽  
Nanoscale Particle Size

Magnesium oxide (MgO) is regarded as a biocompatible material. A composite material fromMgO oxide prepared by mixing MgO powder with TiO2 (rutile phase) (2, 5, 10)Wt.% usingpowder metallurgy technique. It is used to be bioceramic material. The compressed sampleswere dried and sintered at (1200) ᵒC. porosity measurement showed that the porositydecreasing with increasing TiO2% . X-ray showed the presence of Mg2TiO4 in the compositestructure of MgO with (5, 10)%TiO2 samples.The mechanical study showed an increasing in compressive strength, hardness, wearresistance and biodegradation resistance with increasing TiO2% content in the limit of usedpercentage. The prepared composite material didn’t present antibacterial activity whileprevious researches showed opposite result because of using nanoscale particle size of MgO.

scholarly journals Using of Technogenic Raw Materials Based on Titanium-containing Slag and Aluminum Bronze for the Development of Composite Material

2020 ◽  
Author(s):  
Mikhail Nikolaevich Zakharov ◽  
Nina Iosifovna Ilinykh ◽  
Olga Vladimirovna Romanova ◽  
Olga Fedorovna Rybalko
Keyword(s):  
Composite Material ◽  
Raw Materials ◽  
Thermodynamic Simulation ◽  
Inert Atmosphere ◽  
Powder Materials ◽  
Aluminum Bronze ◽  
X Ray ◽  
Large Particles ◽  
Technogenic Raw Materials ◽  
Pressing Powder

In this study, the possibility of using of the following technogenic raw materials to obtain a composite material was considered: titanium-containing slag, with the addition of aluminum bronze grade PG-19M-01 (TU 48-4206-156-82) and aluminum powder grade PA-4 (GOST 6058-73). The percentage of components in the mixture were as follows (wt. %): slag - 40, PG-19M-01 - 30, PA-4 - 30. A thermodynamic simulation of the selected system was preliminarily carried out using TERRA program in the temperature range 273 - 4273 K. The chemical and granulometric composition of the initial powders was investigated. From the powder mixture there were compressed the tablets and then they were sintered in an inert atmosphere. Micro-X-ray analysis of sintered samples showed that they consist of large particles of various shapes, most likely containing titanium and iron aluminides, their compounds between themselves and with copper. Keywords: titanium-containing slag, composite material, thermodynamic modeling, intermetallic compounds, pressing, powder materials

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