scholarly journals Chemical properties study of nickel- and iron oxide-based carbon nanoparticles synthesized in submerged arc discharge by Fourier transform infrared spectroscopy

2020 ◽  
Author(s):  
Oktaviana Dewi Indah Prasiwi ◽  
Abu Masykur ◽  
Teguh Endah Saraswati
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Iron Oxide ◽  
Fourier Transform Infrared Spectroscopy ◽  
Carbon Nanoparticles ◽  
Arc Discharge ◽  
Chemical Properties ◽  
Fourier Transform Infrared ◽  
Submerged Arc

Investigation into the Differences Chemical Properties of Laser Sintering Polymer Powders Using Fourier Transform Infrared Spectroscopy

2014 ◽  
Vol 548-549 ◽  
pp. 133-136
Author(s):  
Yusoff Way ◽  
Hadi Puwanto ◽  
Farizahani ◽  
P.T. Pham
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Chemical Composition ◽  
Fourier Transform Infrared Spectroscopy ◽  
Surface Finish ◽  
Chemical Properties ◽  
Fourier Transform Infrared ◽  
Laser Sintering ◽  
Polymer Materials ◽  
Powder Materials

Selective Laser Sintering (SLS) or Laser Sintering (LS) allows functional parts to be produced in a wide range of powdered materials using a dedicated machine, and is thus gaining popularity within the field of Rapid Prototyping (RP). One of the advantages of employing LS is that the loose powder of the building chamber can be recycled. The properties of polymer powder significantly influence the melt viscosity and sintering mechanism during Laser Sintering (LS) processes which results in a good surface finish. The objective of this research is to investigate the chemical composition of fresh polymer materials used in Laser Sintering. There are seven virgin SLS materials which are PA2200, GF3200, Alumide, PrimeCast, PrimePart, Duraflex and CastForm. Fourier Transform Infrared Spectroscopy (FTIR) was used to analyze the chemical composition of the materials by using infrared radiation and absorbed frequency. The spectra show that similar functional groups were found in the materials apart from PrimePart and Duraflex. Obtained data from this analysis could be used to investigate on how the fresh and recycled powder materials with different chemical properties would affect the part surface finish.

scholarly journals Fabrication and Physico-Chemical Properties of Antifungal Samarium Doped Hydroxyapatite Thin Films

Coatings ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1466
Author(s):  
Carmen Steluta Ciobanu ◽  
Daniela Predoi ◽  
Patrick Chapon ◽  
Mihai Valentin Predoi ◽  
Simona Liliana Iconaru
Keyword(s):  
Electron Microscopy ◽  
Thin Films ◽  
Scanning Electron Microscopy ◽  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Fourier Transform Infrared Spectroscopy ◽  
Chemical Properties ◽  
Fourier Transform Infrared ◽  
Orthopedic Implants ◽  
Scanning Electron

Samarium doped hydroxyapatite (Ca10−xSmx(PO4)6(OH)2, xSm = 0.5, 50SmHAp) is a very promising candidate to be used for different coatings in various dental and orthopedic implants. We report, for the first time, the obtaining of 50SmHAp thin films by a cost-effective method, namely spin coating. Thin films of 50SmHAp on silicon substrate have been analyzed by various techniques such as Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), atomic force microscopy (AFM), Metallographic microscopy and Glow Discharge Optical Emission Spectroscopy (GDOES). The stability of 50SmHAp suspension was evaluated by ultrasound measurements. Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and scanning electron microscopy (SEM) were also used to evaluate the 50SmHAp suspension. The antifungal activity of 50SmHAp suspension and coatings was assessed using Candida albicans ATCC 10231 fungal strain (C. albicans). The results of the antifungal assays depicted that both 50SmHAp suspensions and coatings were effective in inhibiting the development of C. albicans fungal cells, thus making them ideal candidates for the development of novel antifungal agents. The obtained results give new perspective for possible applications of 50SmHAp thin films in various medical applications due to their antifungal properties.

scholarly journals ASSESSING THE CHEMICAL PROPERTIES OF DAMMAR ASPHALT USING FOURIER TRANSFORM INFRARED SPECTROSCOPY

2016 ◽  
Vol 12 (1) ◽  
pp. 95
Author(s):  
Ary Setyawan ◽  
M Fachri ◽  
A Sumarsono
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Fourier Transform Infrared Spectroscopy ◽  
Chemical Properties ◽  
Road Construction ◽  
Fourier Transform Infrared ◽  
Oxidation Products ◽  
Low Molecular Weight ◽  
Cooking Oil ◽  
Low Molecular Weight Compounds

<p class="25mmIndent">Dammar Asphalt (Daspal) is expected to be used as a bio-asphalt renewable binder for road construction. It is made with a modification of the "Jabung", which is the dammar gum based material mixed with grounded red brick debris and low quality cooking oil at a certain ratio. Dammar gum is obtained from the Dipterocarpaceae family of trees in India and East Asia, most are produced by tapping trees. The gum varies in color from clear to pale yellow. Dammar gum is a triterpenoid resin, containing a large number of triterpenes and their oxidation products. Many of them are low molecular weight compounds. The objective of this research is to analyze the chemical properties of Daspal uses a Resonance Fourier Transform Infrared Spectroscopy (FTIR) method to compare with conventional asphalt. The investigation using spectral data showed that all types of Daspal have similar functional groups of Saturate, Aromatic, Resins, and Asphalten as the 60/70 penetration conventional bitumen, so that based on its chemical properties Daspal can be considered as bioaspal.</p>

scholarly journals ASSESSING THE CHEMICAL PROPERTIES OF DAMMAR ASPHALT USING FOURIER TRANSFORM INFRARED SPECTROSCOPY

2016 ◽  
Vol 12 (1) ◽  
pp. 95
Author(s):  
Ary Setyawan ◽  
M Fachri ◽  
A Sumarsono
Keyword(s):  
Fourier Transform ◽  
Infrared Spectroscopy ◽  
Fourier Transform Infrared Spectroscopy ◽  
Chemical Properties ◽  
Road Construction ◽  
Fourier Transform Infrared ◽  
Oxidation Products ◽  
Low Molecular Weight ◽  
Cooking Oil ◽  
Low Molecular Weight Compounds

<p class="25mmIndent">Dammar Asphalt (Daspal) is expected to be used as a bio-asphalt renewable binder for road construction. It is made with a modification of the "Jabung", which is the dammar gum based material mixed with grounded red brick debris and low quality cooking oil at a certain ratio. Dammar gum is obtained from the Dipterocarpaceae family of trees in India and East Asia, most are produced by tapping trees. The gum varies in color from clear to pale yellow. Dammar gum is a triterpenoid resin, containing a large number of triterpenes and their oxidation products. Many of them are low molecular weight compounds. The objective of this research is to analyze the chemical properties of Daspal uses a Resonance Fourier Transform Infrared Spectroscopy (FTIR) method to compare with conventional asphalt. The investigation using spectral data showed that all types of Daspal have similar functional groups of Saturate, Aromatic, Resins, and Asphalten as the 60/70 penetration conventional bitumen, so that based on its chemical properties Daspal can be considered as bioaspal.</p>

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