Fabrication and Characterization of Porous F-75 for Potential Application in Tissue Engineering

2013 ◽  
Vol 795 ◽  
pp. 78-81
Author(s):  
Shamsul Baharin Jamaludin ◽  
Tan Wei Leng ◽  
Nur Hidayah Ahmad Zaidi ◽  
Zuraidawani Che Daud ◽  
Mohd Noor Mazlee
Keyword(s):  
Compaction Pressure ◽  
Microstructural Analysis ◽  
Argon Atmosphere ◽  
Pore Shape ◽  
Powder Metallurgy Technique ◽  
Fabrication And Characterization ◽  
Compacting Pressure ◽  
Sem Microstructure ◽  
Scanning Electron

Porous F-75 (Co-Cr-Mo) was produced by powder metallurgy technique. F-75 powder was mixed with space holder and compacted using different pressures (300 MPa, 350 MPa, 400 MPa, 450 MPa). The green samples were sintered at 1150 °C in a tube furnace under argon atmosphere. Sintered samples were examined in terms of bulk density, porosity, hardness and pore size. Microstructural analysis was carried out using a scanning electron microscope (SEM). Microstructure analysis showed that pore sizes and pore shape were influenced by different compaction pressure. The hardness of the samples increased as compacting pressure increased. Density and porosity remained constant at certain level.

Effect of Space Holder and Compaction Pressure on the Porosity of Sintered Copper

2013 ◽  
Vol 795 ◽  
pp. 82-86 ◽  
Author(s):  
Shamsul Baharin Jamaludin ◽  
Chong Xin Yi ◽  
Alida Abdullah ◽  
Kamarudin Hussin
Keyword(s):  
Rotation Speed ◽  
Compaction Pressure ◽  
Argon Atmosphere ◽  
Powder Metallurgy Technique ◽  
True Density ◽  
Space Holder ◽  
Porous Copper ◽  
Sintered Copper ◽  
Roll Mill ◽  
Scanning Electron

The effect of space-holder content on the porosity of sintered copper that was fabricated by powder metallurgy technique has been investigated. Carbamide was used as space-holder and the content selected was 10 wt. %, 20 wt. % and 30 wt. %. A roll mill was used to mix the copper powder and the carbamide particles with rotation speed of 160 rpm for 2 hours. The mixture was compacted by hand press at 200-350MPa and sintered under argon atmosphere at 800°C. True density of the sample was determined by a gas pycnometer. Bulk density was determined using mass and volume of the sample. Result shows that the sintered porous copper with 30 wt. % of space-holder produced the highest porosity and the lowest density. Microstructure of pores was analyzed by a scanning electron microscope (SEM) which reveals the elongated pores interconnected to each other.

Fabrication and Characterization of Fibrous Polycaprolactone Blended with Natural Green Tea Extracts Using Dual Solvent Systems

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Ainatul Aqilah Binti Mohd Rashid ◽  
Saravana Kumar Jaganathan ◽  
Ahmad Zahran Mohd Khudzari ◽  
Ahmad Fauzi Ismail
Keyword(s):  
Electron Microscopy ◽  
Green Tea ◽  
Water Uptake ◽  
Wound Dressing ◽  
Electrospun Fibers ◽  
Fibrous Morphology ◽  
Solvent Systems ◽  
Fabrication And Characterization ◽  
Scanning Electron

AbstractNanofibrous dressings serve as an impeccable candidate in the management of wounds. Nanofibrous composites composed of polycaprolactone (PCL) and green tea using dual solvent systems at different ratios were fabricated through electrospinning. Pure PCL electrospun fibers along with composites were characterized by using scanning electron microscopy (SEM), wettability, water uptake analysis, and Fourier transform infrared spectroscopy (FTIR). SEM indicated that fibrous morphology and the diameter of PCL/green tea were smaller for chloroform/dimethylformamide (DMF) (601 nm) and acetone/DMF (896 nm) than the pure PCL (673 nm and 1,104 nm for chloroform/DMF and acetone/DMF, respectively). Wettability of the fabricated composites was increased, and pure PCL fibers were slightly more hydrophobic (100°) than PCL/green tea (94°). Water uptake of the composites was enhanced compared with PCL significantly in acetone/DMF. The PCL/green tea nanofibrous wound dressing with enhanced physicochemical properties serves as an indispensable candidate for wound healing applications.

scholarly journals Study of the mechanical performance and analysis of hybrid natural snake grass-jute-glass fiber strengthened polyester composite

2017 ◽  
Vol 7 (1.1) ◽  
pp. 78
Author(s):  
C. Thiruvasagam ◽  
S. Prabagaran ◽  
P. Suresh
Keyword(s):  
Mechanical Properties ◽  
Glass Fiber ◽  
Mechanical Performance ◽  
Microstructural Analysis ◽  
Fiber Composites ◽  
Polyester Composite ◽  
The Common ◽  
Special Category ◽  
Scanning Electron

The research paper involves fiber composites form a special category materials that are contributing to present swaping of manufactured  hybrid  which finds traditional and non traditional applications. The study explains which are accentuates and optimizing for the recently recognized snake grass standard materials. In this article, the prospecting performance characterization of SG fiber is selected and contrasted as per the ASTM standard. This study additionally manages the examination apply different phenomena of this stages in Jute and snake as fortifications utilized index ended a try. Experiments have been conducted on normal Filaments, snake grass, Glass Fiber and Jute to analyse their Mechanical properties. The common strands are orchestrated in the flat and vertical heading as transferred quality on all sides. Microstructural analysis of these hybrid composite is observed using Scanning  Electron Microscope that reveals bonding and Filament breaksge, Voids and Fiber decover which are further investigated.

Nanomanipulator-assisted fabrication and characterization of carbon nanotubes inside scanning electron microscope

Micron ◽  
2005 ◽  
Vol 36 (5) ◽  
pp. 471-476 ◽  
Author(s):  
Seong Chu Lim ◽  
Keun Soo Kim ◽  
Im Bok Lee ◽  
Seung Yol Jeong ◽  
Shinje Cho ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Fabrication And Characterization ◽  
Scanning Electron

Characterization of Different Additives of Sintered Cobalt F-75 Alloy in Biomaterial Applications

2013 ◽  
Vol 594-595 ◽  
pp. 29-33
Author(s):  
Rohaya Abdul Malek ◽  
Yeoh Chieh Hang
Keyword(s):  
Powder Metallurgy ◽  
Bulk Density ◽  
Chemical Structure ◽  
Microstructural Analysis ◽  
Argon Atmosphere ◽  
Apparent Porosity ◽  
Mechanical Wear

A Co-Cr-Mo (ASTM CoF-75) alloy is normally used because of their good in physical, mechanical, wear and as well as biocompatibility. In order to obtain similarity chemical structure of bone, addition of HAP or TCP into CoF-75 alloy is required. The samples were fabricated using powder metallurgy (P/M) technique under pressure of 350 MPa and sintered at 1200 °C under argon atmosphere. The results on the effect of different additives were studied in terms of shrinkage, bulk density, apparent porosity and microstructural analysis.

scholarly journals Fabrication and characterization of solid-state nanopores using a field emission scanning electron microscope

2006 ◽  
Vol 88 (10) ◽  
pp. 103109 ◽  
Author(s):  
Hung Chang ◽  
Samir M. Iqbal ◽  
Eric A. Stach ◽  
Alexander H. King ◽  
Nestor J. Zaluzec ◽  
...  
Keyword(s):  
Electron Microscope ◽  
Solid State ◽  
Scanning Electron Microscope ◽  
Field Emission ◽  
Fabrication And Characterization ◽  
Scanning Electron

Synthesis and characterization of sodalite as matrix for conditioning chloride spent salts from pyroprocesses

2009 ◽  
Vol 1193 ◽  
Author(s):  
G. De Angelis ◽  
I. Bardez-Giboire ◽  
M. Mariani ◽  
M. Capone ◽  
M. Chartier ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Sodium Aluminate ◽  
Argon Atmosphere ◽  
Synthesis And Characterization ◽  
Chloride Salt ◽  
X Rays ◽  
Density Measurements ◽  
Quality Product ◽  
Scanning Electron

AbstractTwo different methods have been used to synthesize sodalite for conditioning of chloride salt wastes coming from pyroprocesses: the first one, starting from kaolinite through the intermediate nepheline phase; the second one, starting from silica and sodium aluminate reagents, directly. The obtained products have been characterized by means of several analyses. In particular, different instrumental techniques – stereomicroscopy, scanning electron microscopy (SEMEDS), density measurements, thermogravimetric analysis, X-rays diffraction, FTIR spectroscopy – were performed revealing that the synthesis from kaolinite is the best method, provided that rigorous conditions are followed. The use of an argon atmosphere for the preparation of pellets of reagents is strictly necessary for the obtainment of a good quality product.

Fabrication and Characterization of a Feldspar-Alumina for Dental Ceramic

2010 ◽  
Vol 160-162 ◽  
pp. 424-427
Author(s):  
Guang Lei Zhang ◽  
Guo Qiang Qin ◽  
Yuan Hua Zhang ◽  
Pu Cheng ◽  
Chang Tao Shao
Keyword(s):  
Sinter Temperature ◽  
Bending Strength ◽  
Dental Ceramics ◽  
Alumina Ceramics ◽  
X Ray Diffraction ◽  
X Ray ◽  
Fabrication And Characterization ◽  
Sintering Method ◽  
Scanning Electron

Feldspar-alumina dental ceramics were produced by impressed sintering method and characterized by X-ray diffraction and scanning electron microscope techniques. The machinability of the obtained alumina ceramics was evaluated by grinding capacity in the simulative grinding experiment. The results show that an appropriate amount of feldspar additive can reduce the sinter temperature and improve density, bending strength and machinability of alumina dental ceramics. Under 10 wt% feldspar and 1450 °C sinter temperature, the relative density and bending strength of ceramic reached 93.62% and 235MPa, respectively.

Fabrication and Characterization of Bi1.6Pb0.4Sr2Ca2Cu3-xFexOy Superconductor

2017 ◽  
Vol 268 ◽  
pp. 311-314 ◽  
Author(s):  
M.A. Suazlina ◽  
H. Azhan ◽  
S. Akmal Syamsyir ◽  
K. Azman ◽  
W.A.W. Razali ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Undoped Sample ◽  
Fe Doping ◽  
X Ray Diffraction ◽  
Solid State Reaction Technique ◽  
X Ray ◽  
Oxide Powders ◽  
Fabrication And Characterization ◽  
Scanning Electron

This paper reports the properties of Bi-2223 superconductors that had been doped with Fe2O3 at Cu-site of the system. It was prepared in bulk form using high purity oxide powders via solid state reaction technique with intermediate grinding. A series of x = 0.00, 0.02, 0.04, 0.06, 0.08 and 0.10 of Fe were stoichiometrically added to the well balanced of Bi1.6Pb0.4Sr2Ca2Cu3-xFexOy in order to trace the effect of Fe doping. Hence, electrical resistivity, X-ray diffraction and Field Emission Scanning Electron Microscopy have been carried out to assess the effects of Fe doping. These measurements indicate that Fe doping decreased the critical temperature and degrade the formation of high Tc phase compared with the undoped sample. The orthorhombicity parameters were increased due to substitution of Cu 3+ ion by Fe 2+ ion.

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